Office (OLE) / .PPT malware analysis — malicious · a244aa7ad94a02f2

MALICIOUS

Office (OLE) / .PPT

818.5 KB Created: 2008-01-27 01:25:33 Authoring application: Microsoft PowerPoint

MD5: a380879dd432e8209187781adad0a09a SHA-1: f61ea717debc59d1d9fc65ab1ee9113b1bf24be4 SHA-256: a244aa7ad94a02f2aa8653452d78d9bb4bfc827f809225b61cec9c8a18783ba6

300 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1059.001 PowerShell T1204.002 Malicious File

The sample is a PowerPoint file containing VBA macros, specifically an AutoOpen macro, which is a common delivery mechanism for malware. Heuristics indicate XOR-encoded strings and PEB access, suggesting attempts to obfuscate or evade detection. The ClamAV detection 'Ppt.Exploit.Apptom-10029459-0' further confirms its malicious nature. No specific IOCs like URLs or hashes were extracted, but the presence of an AutoOpen macro strongly suggests an attempt to execute malicious code upon opening.

Heuristics 7

XOR-encoded strings (key 0x85) critical SC_XOR_ENCODED

Found 8 Windows library/API name(s) XOR-encoded with single-byte key 0x85: 'iphlpapi.dll', 'LoadLibraryA', 'LoadLibraryA', 'LoadLibraryW', 'GetProcAddress', 'GetProcAddress', 'GetProcAddress', 'VirtualAlloc'
ClamAV: Ppt.Exploit.Apptom-10029459-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Ppt.Exploit.Apptom-10029459-0
PEB access via FS segment (x86) high SC_PEB_ACCESS

PEB access via FS segment (x86)
AutoOpen macro high OLE_VBA_AUTOOPEN

AutoOpen macro
CreateObject call high OLE_VBA_CREATEOBJ

CreateObject call
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

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`macros.bas` `7403e4728955600b20e1b11715dae9328df16f95bc7db40bf64d8dfe55835d1d`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	1005 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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