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

Static analysis result for SHA-256 57cd4253d259a328…

MALICIOUS

Office (OLE) / .DOC

109.0 KB Created: 2017-10-16 08:09:00 Authoring application: Microsoft Office Word
MD5: 85c766f653d29db991d32056884a0e7b SHA-1: ddf3a9e569abf163da020dde5b61d2bb08994263 SHA-256: 57cd4253d259a328cdd6e704b52d6c62252839265c4e402ba0c7d5f95aba1775
388 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1059.005 Visual Basic T1204.002 Malicious File T1566.001 Spearphishing Attachment T1059.003 Windows Command Shell

The sample contains VBA macros, including a Document_Open macro, which indicates an attempt to automatically execute malicious code upon opening. The presence of a Shell() call and CreateObject call strongly suggests the execution of external commands or scripts. The ClamAV detection 'Doc.Dropper.Agent-6413583-0' further supports its malicious nature as a dropper. The document body, written in Arabic, discusses geopolitical tensions between Iran, Russia, and Syria, likely serving as a lure to entice users to open the malicious content.

Heuristics 11

  • Shell() call in VBA critical OLE_VBA_SHELL
    Shell() call in VBA
  • ClamAV: Doc.Dropper.Agent-6413583-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Dropper.Agent-6413583-0
  • Reference to Windows Script Host high SC_STR_WSCRIPT
    Reference to Windows Script Host
  • 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.
  • Visible LOLBin command execution instruction high SE_LOLBIN_RUN_COMMAND
    Document contains instructions or visible command text involving Windows script/execution tools such as PowerShell, mshta, cmd, rundll32, or regsvr32
  • 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
  • Environ() call (env variable access) low OLE_VBA_ENVIRON
    Environ() call (env variable access)
  • 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.iec.ch
    • http://schemas.openxmlformats.org/drawingml/2006/main

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
b6d2c7f865d2ad86cc47305fde585bd3208d3be8165f5195f4c4d2bf2d62f6c7		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 3303 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 2 eval/decoder/string-building token(s). Carved macro source contains an auto-exec entry point and execution/download terms.

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