Malicious Office (OOXML) / .DOC — malware analysis report

Static analysis result for SHA-256 59aaeff1bf43539c…

MALICIOUS

Office (OOXML) / .DOC

10.2 KB Created: 2018-03-07 09:39:00 UTC Authoring application: Microsoft Office Word 12.0000 First seen: 2022-10-17
MD5: 3ffeb8ac17aa071e57719cc4371896e9 SHA-1: f28e6467c87386ff34e5ad1390e83ad32e338eda SHA-256: 59aaeff1bf43539c7cfca446bbe879e3c16d9bbd6a3b9fa4edeb8702d6acba1b
142 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File

The sample exhibits critical ClamAV detection as Doc.Downloader.Redline-9972754-0, indicating it's a known downloader. High-severity heuristics for OOXML remote template injection and external relationships point to the use of a malicious URL to fetch a secondary payload. The embedded URL is reconstructed as http://uuUASDbjasduhuasduyuASHUDHUSADHUASreweewretrtDU@1755852395/@uuUASDbjasd@uhuasduyuASHUDHUSADHU@ASreweewretrtDU/wqqqserrfdg@dfgdfretrtr@ewr.doc, which is likely used to download and execute further malicious content.

Heuristics 4

  • ClamAV: Doc.Downloader.Redline-9972754-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Redline-9972754-0
  • Remote template injection high OOXML_REMOTE_TEMPLATE
    Document references a remote template URL (http://uuUASDbjasduhuasduyuASHUDHUSADHUASreweewretrtDU@1755852395/@uuUASDbjasd@uhuasduyuASHUDHUSADHU@ASreweewretrtDU/wqqqserrfdg@dfgdfretrtr) — a common remote-template-injection vector used by Hancitor, Emotet and many phishing campaigns. Word can fetch and apply the remote template; macros in that template may execute depending on Office policy and trust state.
  • External relationship high OOXML_EXTERNAL_REL
    External target in word/_rels/webSettings.xml.rels: http://uuUASDbjasduhuasduyuASHUDHUSADHUASreweewretrtDU@1755852395/@uuUASDbjasd@uhuasduyuASHUDHUSADHU@ASreweewretrtDU/wqq
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://uuUASDbjasduhuasduyuASHUDHUSADHUASreweewretrtDU@1755852395/@uuUASDbjasd@uhuasduyuASHUDHUSADHU@ASreweewretrtDU/wqqqserrfdg@dfgdfretrtr
    • http://uuUASDbjasduhuasduyuASHUDHUSADHUASreweewretrtDU@1755852395/@uuUASDbjasd@uhuasduyuASHUDHUSADHU@ASreweewretrtDU/wqqqserrfdg@dfgdfretrtr@ewr.doc
    • http://uuUASDbjasduhuasduyuASHUDHUSADHUASreweewretrtDU@1755852395/@uuUASDbjasd@uhuasduyuASHUDHUSADHU@ASreweewretrtDU/wqq
    • http://schemas.openxmlformats.org/markup-compatibility/2006
    • http://schemas.openxmlformats.org/officeDocument/2006/relationships
    • http://schemas.openxmlformats.org/officeDocument/2006/math
    • http://schemas.openxmlformats.org/drawingml/2006/wordprocessingDrawing
    • http://schemas.openxmlformats.org/wordprocessingml/2006/main
    • http://schemas.microsoft.com/office/word/2006/wordml

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