Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 2acaf8ba2b6a8482…

MALICIOUS

Office (OLE)

7.0 KB First seen: 2012-06-14
MD5: b9ac6fb071014586240f3ac48f10428d SHA-1: 37c19a1ec52077ca336c99e57dd5cb840537839a SHA-256: 2acaf8ba2b6a8482be7419bd7199072d976c70d7bbee0c1e123eb1a92ec6be11
102 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic

The file exhibits critical ClamAV detection as Win.Trojan.Temple-4 and contains legacy WordBasic macro virus markers. The document body explicitly refers to itself as a "RSN MACRO VIRUS Goat file" and mentions initialization routines like `_Automatically runs when Word is started. Initialises Word and calls the CTRL-SH-U Menu macro.`, indicating a macro-based execution for malicious purposes.

Heuristics 3

  • ClamAV: Win.Trojan.Temple-4 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Win.Trojan.Temple-4
  • Legacy WordBasic macro-virus markers high OLE_LEGACY_WORDBASIC_MACRO_VIRUS
    OLE Word document contains legacy WordBasic auto-execution macro markers such as AutoOpen plus ToolsMacro/MacroFile/fileMacro/globMacro or named historical macro-virus strings. These old Word 6/95 macro forms are not exposed as a modern VBA project, so normal VBA source extraction can miss them.
  • Recovered legacy WordBasic macro source info OLE_LEGACY_WORDBASIC_MACRO_SOURCE
    The Word 6.0/95 document stores tokenised WordBasic macros in the WordDocument stream rather than as a modern VBA project, so VBA source extraction cannot see them. The macro source was detokenised and carved so its identifiers, string literals (file paths, URLs, registry keys, message text) and comments are available for review and signature scanning.

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
wordbasic_macros.txt wordbasic-macro analyzer.wordbasic (detokenised Word 6/95 WordBasic macro source) 755 bytes
SHA-256: 56e2745d27a9aa9bfc29a58925700d95c2eaa97d653344e3d5c63bbb7b94f461
Preview script
First 1,000 lines of the extracted script
, , = 31084      
  29545  
  29548     - -     = 21349      
    29793 = 20325     @cmd6420     29793 = = =
MAIN
, - * ErrorHandler
* Finished
=
29285
err
MAIN
, - * ErrorHandler
@cmd0053
@cmd0054 = 1
@cmd80c2 "Global:AutoExec" , @cmd8025 = ":TempAutoExec"
@cmd80c2 "Global:FileSave" , @cmd8025 = ":TempFileSave"
@cmd80c2 "Global:FileOpen" , @cmd8025 = ":TempFileOpen"
@cmd80c2 "Global:TempAutoOpen" , @cmd8025 = ":AutoOpen"
@cmd0054 = 1
* Finished
=
29285
err
Main
rc = PCDOCS 20325
MAIN
, - * ErrorHandler
@cmd80c2 @cmd8025 = ":TempAutoExec" , "Global:AutoExec"
@cmd80c2 @cmd8025 = ":TempFileSave" , "Global:FileSave"
@cmd80c2 @cmd8025 = ":TempFileOpen" , "Global:FileOpen"
@cmd80c2 @cmd8025 = ":AutoOpen" , "Global:TempAutoOpen"
* Finished
=
29285
err

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