Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 ca1a2892d0981231…

MALICIOUS

Office (OLE)

132.5 KB Created: 2009-04-28 18:05:00 Authoring application: Microsoft Macintosh Word
MD5: 9b64d80775069a09e8e0fa6ef2070e83 SHA-1: 0765cd6459a8f663d42673726247af6e02b7add7 SHA-256: ca1a2892d09812310ffe0ebe40705b0d6f6af6e00562671ba3750cb853a12b2b
180 Risk Score

Malware Insights

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

The file is identified as malicious by ClamAV, with critical detections indicating it's a trojan. The presence of a Document_Open VBA macro strongly suggests that the macro is executed automatically upon opening the document. This macro likely attempts to download a secondary payload from the embedded URL http://www.abbynet.sd34.bc.ca/sandyhill, which is a common technique for malware delivery.

Heuristics 5

  • ClamAV: Doc.Trojan.Marker-40 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Trojan.Marker-40
  • 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://www.abbynet.sd34.bc.ca/sandyhill
    • http://schemas.openxmlformats.org/drawingml/2006/main

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
12e3ee064e655c6d00baa617f63756819fa5a29747ccc2b5af0b6ea15e663f3d
vba-macro oletools.olevba.extract_macros (decoded VBA source) 4283 bytes
Detection
ClamAV: Doc.Trojan.Marker-2
Obfuscation or payload: unlikely