Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 4925e4e1f992f124…

MALICIOUS

Office (OLE)

124.0 KB Created: 2005-05-30 01:34:00 Authoring application: Microsoft Word 9.0
MD5: 14a4d11138036ab3cce47e135e4ad764 SHA-1: b9ad88b4893c7c371bca518ec7096bfc3b38687a SHA-256: 4925e4e1f992f124ffd78d008bfdf45c32434af44276ffd3c7eafcf34526fc4b
208 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic

The file is identified as malicious by ClamAV (Doc.Trojan.WhiteIce-1). Static analysis revealed a VBA macro with auto-execution tokens that execute a shell command. The document body presents a fabricated scenario about a loan default to deceive the reader. No specific malware family could be confidently identified.

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.
  • 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.
  • 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.

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
b16254eec2bea13976311d5c416e1b6a866156d5c9faf7c71267b86639fccf25		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 62793 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 88 long base64-like blob(s). Carved macro source contains an auto-exec entry point and execution/download terms.

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