Office (OLE) / .PPT malware analysis — malicious · d61190607286ef45

MALICIOUS

Office (OLE) / .PPT

69.5 KB Created: 2021-10-19 07:06:20 Authoring application: Microsoft Office PowerPoint

MD5: 1acfd9330597e967165c3b43a882e47f SHA-1: c099bbc1a685b6e7475792d68aba4702b1c812e6 SHA-256: d61190607286ef45cba9a99d115b5272db4ba252b97942b849426cd186e944e3

242 Risk Score

Malware Insights

MITRE ATT&CK

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

The sample is a PowerPoint file containing VBA macros. The Auto_Close macro is configured to execute a ShellExecute command, which is a common technique for launching malicious payloads. The script also uses CreateObject to instantiate Shell.Application, further indicating an intent to execute external commands. The presence of the mshta.exe heuristic also suggests potential execution of malicious scripts. The embedded URL was confirmed benign and is not considered a primary IOC.

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_Close macro high OLE_VBA_AUTOCLOSE

Auto_Close 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.
VBA macros detected medium OLE_VBA_MACROS

Document contains VBA macro code
Suspicious extracted artifact medium 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.
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/dhayskjdhasjkdhsjkahdjk

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`macros.bas` `c4609b5420a6bd1a945b585db4673be40eb1f296ccae809be8c96d68020bc269`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	1262 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 shell/COM execution token(s).

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