Malicious MS Office Document analysis – 37700c01606d

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File

Type

Microsoft Office Document

25 malicious · 40 files

OFF37700c01606de2bbf5a4a5f6d92782bdMS Office DocumentT1059.005

OFF[Repaired @0x00002282]sub-stream · MS Office Document

XML[Content_Types].xmlextracted from MS Office Document · XML

BIN_rels

BINtheme

BINRoot Entry

OFF1Tableextracted from MS Office Document · MS Office Document

OFF[Repaired @0x00001082]sub-stream · MS Office Document

BINCompObjextracted from MS Office Document

BINWordDocumentextracted from MS Office Document

BINSummaryInformationextracted from MS Office Document

BINDocumentSummaryInformationextracted from MS Office Document

BINMacros

BINPROJECTextracted from MS Office Document

BINPROJECTwmextracted from MS Office Document

BINVBA

BINdirextracted from MS Office Document

VBANewMacrossub-stream · VBA Module

VBS[Stored VBA]code extracted · VBScriptT1059.005

PS1[PowerShell Command]code extracted · PowerShell

PS1[Deobfuscated PS]deobfuscated · PowerShell

BIN[Base64-Block]decoded · base64

VBS[Stored VBA].deobfuscated.vbsdeobfuscated · VBScriptT1059.005

SH[Command #0] code extracted · Bash Script

PS1[PowerShell Command]code extracted · PowerShell

PS1[Deobfuscated PS]deobfuscated · PowerShell

SH[Command #3] code extracted · Bash Script

PS1[PowerShell Command]code extracted · PowerShell

PS1[Deobfuscated PS]deobfuscated · PowerShell

PS1[PowerShell Command]code extracted · PowerShell

PS1[Deobfuscated PS]deobfuscated · PowerShell

PS1[PowerShell Command]code extracted · PowerShell

PS1[Deobfuscated PS]deobfuscated · PowerShell

BIN[Base64-Block]decoded · base64

PS1[PCode]disassembled · PowerShell

PS1[PowerShell Command]code extracted · PowerShell

PS1[Deobfuscated PS]deobfuscated · PowerShell

VBS[Decompiled VBA]decompiled · VBScript

BIN_VBA_PROJECTextracted from MS Office Document

URLs in VB Code - #1 URIsuspect

http:/huhuhuhuhuhuhuhuhuhuhu

Deobfuscated PowerShell UNKNWOWNmalicious

& $filhuhuhuhuhuhuhuhuhuhuhu

Deobfuscated PowerShell UNKNWOWNmalicious

Set-Mphuhuhuhuhuhuhuhuhuhuhu

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25 malicious · 40 files

OFF37700c01606de2bbf5a4a5f6d92782bdMS Office DocumentT1059.005

OFF[Repaired @0x00002282]sub-stream · MS Office Document

XML[Content_Types].xmlextracted from MS Office Document · XML

BIN_rels

BINtheme

BINRoot Entry

OFF1Tableextracted from MS Office Document · MS Office Document

OFF[Repaired @0x00001082]sub-stream · MS Office Document

BINCompObjextracted from MS Office Document

BINWordDocumentextracted from MS Office Document

BINSummaryInformationextracted from MS Office Document

BINDocumentSummaryInformationextracted from MS Office Document

BINMacros

BINPROJECTextracted from MS Office Document

BINPROJECTwmextracted from MS Office Document

BINVBA

BINdirextracted from MS Office Document

VBANewMacrossub-stream · VBA Module

VBS[Stored VBA]code extracted · VBScriptT1059.005

PS1[PowerShell Command]code extracted · PowerShell

PS1[Deobfuscated PS]deobfuscated · PowerShell

BIN[Base64-Block]decoded · base64

VBS[Stored VBA].deobfuscated.vbsdeobfuscated · VBScriptT1059.005

SH[Command #0] code extracted · Bash Script

PS1[PowerShell Command]code extracted · PowerShell

PS1[Deobfuscated PS]deobfuscated · PowerShell

SH[Command #3] code extracted · Bash Script

PS1[PowerShell Command]code extracted · PowerShell

PS1[Deobfuscated PS]deobfuscated · PowerShell

PS1[PowerShell Command]code extracted · PowerShell

PS1[Deobfuscated PS]deobfuscated · PowerShell

PS1[PowerShell Command]code extracted · PowerShell

PS1[Deobfuscated PS]deobfuscated · PowerShell

BIN[Base64-Block]decoded · base64

PS1[PCode]disassembled · PowerShell

PS1[PowerShell Command]code extracted · PowerShell

PS1[Deobfuscated PS]deobfuscated · PowerShell

VBS[Decompiled VBA]decompiled · VBScript

BIN_VBA_PROJECTextracted from MS Office Document

vbaDNA - VBA Stomping & Purging Stategy detection

	Module Name0
	NewMacros	Blacklist VBA VBA Macro
PCode Decompiled VBA Stored VBA Partial Diff. Full Diff. Missing P-Code: The Office document under analysis has been identified as having undergone VBA Purging techniques, as the P-Code block within the document is currently inaccessible. As a result, the decompilation of the code was not possible, leaving only the stored code available in textual format for analysis. VBA Purging essentially involves the elimination of the PerformanceCache section from the module streams. To fully erase any traces of the P-Code section, the MODULEOFFSET between the two sections is adjusted to 0 by altering the _VBA_PROJECT stream, and all SRP streams that also house PerformanceCache data are removed. Following the removal of the compiled code, antivirus engines and Yara rules, which depend on precise string matches, are rendered ineffective. This allows macros to bypass them effortlessly, owing to the compressed format of the remaining source code.

No malware configuration was found at this point.

URLs in VB Code - #1 URIsuspect

http:/huhuhuhuhuhuhuhuhuhuhu

37700c01606de2bbf5a4a5f6d92782bd › Root Entry › Macros › VBA › NewMacros › [Stored VBA]

Deobfuscated PowerShell UNKNWOWNmalicious

& $filhuhuhuhuhuhuhuhuhuhuhu

37700c01606de2bbf5a4a5f6d92782bd › Root Entry › Macros › VBA › NewMacros › [Stored VBA] › [Stored VBA].deobfuscated.vbs › [Command #0] › [PowerShell Command]

Deobfuscated PowerShell UNKNWOWNmalicious

Set-Mphuhuhuhuhuhuhuhuhuhuhu

37700c01606de2bbf5a4a5f6d92782bd › Root Entry › Macros › VBA › NewMacros › [Stored VBA] › [Stored VBA].deobfuscated.vbs › [Command #3] › [PowerShell Command]

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