Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 1814ebec3b8ad7fe…

MALICIOUS

Office (OLE)

128.0 KB Created: 2005-03-11 03:13:00 Authoring application: Microsoft Office Word
MD5: 0cc544b686838b103d8f06e278d102b0 SHA-1: 7d89c297749bb2b5f5a86c423ce5c671dab13984 SHA-256: 1814ebec3b8ad7fe9b88e9ad622c87ade9d0831252192c54b21cfeda5c25d0ce
170 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic

The sample is identified as malicious by ClamAV with the signature Doc.Trojan.WhiteIce-1. The VBA macro contains API declarations for file operations and execution, and the presence of 'auto=document_open; exec=Shell' indicates an attempt to automatically execute code upon opening. The document body itself appears to be a service agreement, likely a social engineering lure.

Heuristics 6

  • ClamAV: Doc.Trojan.WhiteIce-1 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Trojan.WhiteIce-1
  • Heap-spray pattern detected high SC_HEAP_SPRAY
    Repeated 0x41 (A) bytes found
  • 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.
  • NOP-equivalent sled detected medium SC_NOP_EQUIV_SLED
    Long run of 0x41 bytes
  • VBA project contains no executable statements low OLE_VBA_MACROS
    Document contains a VBA project, but extracted modules only contain attributes/options/comments and no executable statements.
  • Suspicious extracted artifact info 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.

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
3fa9e584808f5a6980d06aab4ae6d944958f9ef88702706e1ba036d5ff93e7da		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 62691 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 88 long base64-like blob(s).

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