Office (OLE) / .PPT malware analysis — malicious · 359de4e28b1286f6

MALICIOUS

Office (OLE) / .PPT

68.5 KB Created: 2021-05-23 20:47:23 Authoring application: Microsoft Office PowerPoint

MD5: 123ca625c7d2338167f3cba08296014b SHA-1: 483242dad8a784d2cde3a98ab7054efcd742bd0d SHA-256: 359de4e28b1286f601c3d8cc5987ff8f81335f049411f00d99496c2f56bbade0

242 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1218.005 System Binary Proxy Execution: Mshta

The sample is a PowerPoint file containing a VBA macro with an Auto_Open function. This macro is designed to execute a command using mshta.exe, indicating a likely attempt to download and execute a secondary payload. The presence of the Auto_Open macro and the Shell() call strongly suggests malicious intent, although the specific payload is not discernible from the static analysis.

Heuristics 7

Shell() call in VBA critical OLE_VBA_SHELL

Shell() call in VBA
Reference to mshta.exe high SC_STR_MSHTA

Reference to mshta.exe
Auto_Open macro high OLE_VBA_AUTO

Auto_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.
Suspicious extracted artifact high 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.
VBA macros detected medium OLE_VBA_MACROS

Document contains VBA macro code
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — context-specific rules above attribute URLs they actually evaluated; this rule lists URLs that were present in the bytes but were not otherwise tied to a specific finding.

URL https://j.mp/shdjkasghdsagdhsagdhsa

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`macros.bas` `c317bbbdb12143ee8bc143cf6ced055789036160742c5536bb8396ac7dbc8ff3`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	1520 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved macro source contains an auto-exec entry point and execution/download terms.

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