Office (OOXML) / .PPT malware analysis — malicious · 6947705ea382569a

MALICIOUS

Office (OOXML) / .PPT

37.8 KB Created: 2021-07-27 04:39:31 UTC Authoring application: Microsoft Office PowerPoint 15.0000

MD5: 526587813105260f2198b6541157bb86 SHA-1: 96888e8f488953595765f4a350b66e3aacc78cc9 SHA-256: 6947705ea382569a6b436779fe9b458e11034c3ea28929763ca714f31a13ad1b

222 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1203 Exploitation for Client Execution

The PowerPoint file contains VBA macros that utilize WScript.Shell and CreateObject to execute commands. The script attempts to establish persistence by writing to the Run key 'HKCU\Software\Microsoft\Windows\CurrentVersion\Run\IAccessible2Proxy'. It also constructs a URL 'http://www.example.com/payload.exe' which is likely used to download and execute a second-stage payload.

Heuristics 6

Shell() call in VBA critical OLE_VBA_SHELL

Shell() call in VBA
WScript.Shell usage critical OLE_VBA_WSCRIPT

WScript.Shell usage
CreateObject call high OLE_VBA_CREATEOBJ

CreateObject call
External relationship high OOXML_EXTERNAL_REL

External target in ppt/slides/_rels/slide1.xml.rels: file:///C:\Users\user\Desktop\help folder\excel\Enable_content.jpg
VBA project inside OOXML medium OOXML_VBA

Document contains a VBA project — VBA macros present
Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGE

One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`macros.bas` `97c653447584c1fa52309a508c7c928f83c1afb2b9976d4532785c7e44727df4`	vba-macro	oletools.olevba.extract_macros (decoded VBA source from OOXML)	3835 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 long base64-like blob(s).
`vbaProject_00.bin` `8a8518e5a6f1b4deaaa9e3f7635b13c651089d6231418841b7141309e58a459b`	vba-project	OOXML VBA project: ppt/vbaProject.bin	14848 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 long base64-like blob(s).

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