PDF malware analysis — malicious · 4536a1b3b29c4892

MALICIOUS

PDF

4.4 KB

MD5: 1e99b4568a32616d02d975e0524102a2 SHA-1: 6545a7790932fba957abca056f3dafb244a3ff1f SHA-256: 4536a1b3b29c4892b483236adc61f0bd0232bb4b58b93825fc096e2380a9ca7c

98 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1059.001 PowerShell

The PDF file contains an XFA form and triggers the critical CVE-2010-0188 heuristic, indicating exploitation of a LibTIFF vulnerability within Adobe Reader. This exploit is designed to achieve arbitrary code execution. The presence of ASCIIHexDecode and ASCII85Decode filters further suggests obfuscation techniques commonly used to hide malicious payloads. The primary attack vector is the exploitation of a known vulnerability in PDF rendering software.

Heuristics 5

Adobe Reader LibTIFF XFA image exploit — CVE-2010-0188 critical CVE likely CVE_2010_0188

PDF contains XFA image data with an inline crafted TIFF payload and shellcode/delivery markers. This is the data-bound variant of the CVE-2010-0188 Adobe Reader LibTIFF/XFA exploit shape.
ASCIIHexDecode filter (with exploit indicators) medium PDF_FILTER_HEX

Hex-encoding filter present alongside exploit delivery indicators — often used to hide payload or shellcode bytes
XFA form low PDF_XFA

PDF uses XML Forms Architecture — can contain script logic
ASCII85Decode filter (with exploit indicators) low PDF_FILTER_85

ASCII85 encoding filter present alongside exploit delivery indicators — uncommon outside of obfuscation
Suspicious extracted artifact info 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.

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_000_off00000207.bin` `cc13c3536b3697bd645a10ecfdd6cca9f31d8a84cb89d4cf6162362350aa59e6`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x207	13469 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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