Office (OLE) / .DOC malware analysis — malicious · cd0a22a8c0e4f61b

MALICIOUS

Office (OLE) / .DOC

50.0 KB Created: 2010-03-24 21:08:00 Authoring application: Microsoft Word 10.0

MD5: 13aeb17f0a4af77ec24c1a8ec59a213f SHA-1: 2ee584cea71d3b58b0d333f8040d9618ffacdd41 SHA-256: cd0a22a8c0e4f61b08a2c2488447df4ce7e0dd5c839cbf6aab4517f45ebb2416

240 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1059.001 PowerShell

The sample is a Microsoft Word document containing VBA macros. A critical heuristic indicates the presence of a Shell() call within the VBA code, which is commonly used to execute arbitrary commands. The extracted artifact 'macros.bas' and the ClamAV detection 'Doc.Trojan.Marker-31' further confirm malicious intent. The document body appears to be unrelated to the malicious functionality, suggesting it's a lure. The primary attack vector involves the execution of VBA macros to download and run a secondary payload.

Heuristics 6

Shell() call in VBA critical OLE_VBA_SHELL

Shell() call in VBA
ClamAV: Doc.Trojan.Marker-31 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Trojan.Marker-31
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.
Suspicious extracted artifact high EXTRACTED_FILE_STATIC_TRIAGE

One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
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://www.apple.com/DTDs/PropertyList-1.0.dtd

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`macros.bas` `0104cb1351b5daee17724422565171964ac2f67715756962cf9d6b69eb364cf5`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	5406 bytes
Detection ClamAV: Doc.Trojan.Marker-3 Obfuscation or payload: likely Carved macro source contains an auto-exec entry point and execution/download terms.

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