Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 3570fa39988014be…

MALICIOUS

Office (OLE)

36.5 KB Created: 2008-01-02 10:03:00 Authoring application: Microsoft Word 10.0
MD5: 3762f6c83eb4f77bdac592760e3325c2 SHA-1: fe8dbbe3ed2748a9524584cd52b34bfdc261714e SHA-256: 3570fa39988014be13b7a1868920f3fc775bb752c55eaf26f2bc1ee59784ae22
180 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1204.002 Malicious File

The sample is a Microsoft Word document containing VBA macros, specifically a Document_Open macro, which is a common technique for executing malicious code upon opening. The document body discusses scientific activities, likely a lure to trick users into enabling macros. The presence of a Document_Open macro strongly suggests the intent to download and execute a second-stage payload. The ClamAV detection as 'Doc.Trojan.Thus-8' further confirms its malicious nature.

Heuristics 5

  • ClamAV: Doc.Trojan.Thus-8 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Trojan.Thus-8
  • ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV
    ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • VBA macros detected medium OLE_VBA_MACROS
    Document contains VBA macro code
  • 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://isca94.org
    • http://www.annamalaiuniversity.ac.in/isca/isca.htm
    • http://www.iypeinsa.org/
    • http://www.vigyanprasar.gov.in/Planetearth/
    • http://mpcost.nic.in/ActionPlan.pdf
    • http://isca94.or

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
59d084425686f08fae5c731d90e641dd2dc2f2752b188543f157dd8d7ef96b80		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 2001 bytes
Detection
ClamAV: Doc.Trojan.Thus-8
Obfuscation or payload: unlikely

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