Office (OLE) / .PPT malware analysis — malicious · ab052f6fd2a5e7f7

MALICIOUS

Office (OLE) / .PPT

64.0 KB Created: 2021-09-24 03:10:04 Authoring application: Microsoft Office PowerPoint

MD5: 4cf0ccdb2104650411e0fe413ed38f74 SHA-1: 0dc5e90e3ec800879e4301077152b5124d42adbe SHA-256: ab052f6fd2a5e7f79934a350c8e36150ee9bd14289811672d8326d7c6e986991

262 Risk Score

Malware Insights

MITRE ATT&CK

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

The file contains an Auto_Open VBA macro that utilizes CreateObject to instantiate a Shell.Application object. This object is then used to call ShellExecute, which is a common technique for executing arbitrary commands or launching downloaded payloads. The macro's intent is to execute a command specified within the 'capstan' module, likely leading to the download and execution of additional malicious content. The presence of 'mshta.exe' references further supports the execution of external code.

Heuristics 8

Reference to ShellExecute API high SC_STR_SHELLEXEC

Reference to ShellExecute API
Reference to mshta.exe high SC_STR_MSHTA

Reference to mshta.exe
Auto_Open macro high OLE_VBA_AUTO

Auto_Open macro
CreateObject call high OLE_VBA_CREATEOBJ

CreateObject call
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 — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.

URL http://www.bitly.com/uiqwhbbswjqgvbsja

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`macros.bas` `0af73fe20016701f581503f41f66241105211a8565bb538d69ceab3e2a35d12e`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	938 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 shell/COM execution token(s). Carved macro source contains an auto-exec entry point and execution/download terms.

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