Office (OLE) / .PPT malware analysis — malicious · d47da005885b9683

MALICIOUS

Office (OLE) / .PPT

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

MD5: 280fdaa58e74bc19ea04478d66b66c57 SHA-1: bfd640462cf230417dff52d54890481b40c4514d SHA-256: d47da005885b968328d25d493a11e0fe3a146c9103f24b0de735a02b117c6a4b

242 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1218.005 Mshta

The sample is a PowerPoint file containing VBA macros. The critical OLE_VBA_SHELL heuristic indicates a Shell() call within the VBA code, and the OLE_VBA_PCODE_AUTOEXEC_EXEC heuristic confirms this is an auto-executing macro that uses execution tokens. Specifically, the reference to mshta.exe suggests the macro's intent is to download and execute a second-stage payload from a remote source. The presence of an embedded URL, although marked as benign, is noted.

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/hdjksabdchsagdsa��

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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