Malicious Office (OLE) / .EXE — malware analysis report

Static analysis result for SHA-256 6499c6a2aa01ee2c…

MALICIOUS

Office (OLE) / .EXE

30.0 KB Created: 1997-04-26 16:26:00 Authoring application: Microsoft Word 8.0
MD5: 90d719e57bc651d0a006cd805e12939d SHA-1: ec612fd8746a9e90186945fd315ae5b09bfa1139 SHA-256: 6499c6a2aa01ee2c45fa2ced4b368783efffc314762f804b5e7c200ab0f61fea
260 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The sample contains VBA macros that execute upon opening the document. These macros utilize CreateObject to interact with Microsoft Outlook, attempting to enumerate contacts and send copies of the infected document to them. This behavior is consistent with a spam or phishing campaign aiming to spread malware.

Heuristics 6

  • ClamAV: Doc.Trojan.Ping-1 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Trojan.Ping-1
  • 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
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • VBA p-code auto-exec with execution tokens high OLE_VBA_PCODE_AUTOEXEC_EXEC
    Compiled VBA/cache stream contains an auto-execution token together with shell/download/object-execution tokens. This catches p-code-only or source-extraction-failure macro documents where visible source is unavailable.
  • VBA macros detected medium OLE_VBA_MACROS
    Document contains VBA macro code

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
42bad78d0d7a2a09faf5c91cce93a47315bac9f1039d4249290483483d111ad0		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 2399 bytes
Detection
ClamAV: Doc.Trojan.Ping-1
Obfuscation or payload: unlikely

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