Office (OLE) / .DOC malware analysis — malicious · b83042cb7213c86e

MALICIOUS

Office (OLE) / .DOC

261.0 KB Created: 2010-01-13 10:41:00 Authoring application: Microsoft Word 11.3

MD5: 47dc2e7f365bb1a2fefd2afaf9fcb9cf SHA-1: 117fa6f2544f93e7e3a1492d4cfe466e94bc6796 SHA-256: b83042cb7213c86e054f367c9c82bd76a44978ed8c41600d8fb14faf1f673b0b

240 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1059.003 Windows Command Shell

The sample is a Microsoft Word document containing VBA macros. Heuristics indicate the presence of macros and the use of the Shell() function, which is commonly used to execute arbitrary commands. The extracted artifact 'macros.bas' further supports the presence of malicious VBA code. The ClamAV detection 'Doc.Trojan.Marker-31' confirms its malicious nature. The document body appears to be a list of names and admission statuses for a biochemistry course, which serves as a lure to disguise the malicious macro execution.

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` `6efcb681b618e23ab8edf2881d0f3d7f5e62d69df27907a187e4a6086bb26eb5`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	6668 bytes
Detection ClamAV: Doc.Trojan.Marker-3 Obfuscation or payload: likely Carved macro source contains an auto-exec entry point and execution/download terms.

Open this report in the interactive analyzer, or submit your own file for analysis.