Office (OLE) / .PPT malware analysis — malicious · 2f62f641c39456d4

MALICIOUS

Office (OLE) / .PPT

63.5 KB Created: 2022-01-13 20:55:37 Authoring application: Microsoft Office PowerPoint

MD5: 55798c20b8619cefb2c93eb5a23684cf SHA-1: 6c733359a941b87d85f55d96c2055bb6bdcbbd95 SHA-256: 2f62f641c39456d4ab443f0a5d7181fe7f745e7e1c433eca3b48d42fb57fd72e

282 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1059.003 Windows Command Shell T1204.002 Malicious File

The PowerPoint file contains a VBA macro with an Auto_Open subroutine. This subroutine calls a function that uses VBA's Shell() function to execute a command. The heuristic firings indicate a reference to mshta.exe and a LOLBin token sequence matching 'mshta https://', suggesting the macro is intended to launch mshta.exe with a URL. The URL 'https://bitly.com/dhuidwyqhdbvjasd' is present in the document text and is likely the target for the mshta execution, which would typically download and execute a second-stage payload. The macro's intent is to download and execute a second-stage payload from the embedded URL.

Heuristics 8

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.
LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND

Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
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 — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.

URL https://bitly.com/dhuidwyqhdbvjasd�

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`macros.bas` `2148fdf9632c701fc08d6a724aeac37f50ed793461d04868e12a18ab26d3cc35`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	910 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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