PDF malware analysis — malicious · 2f3b0fa8b40e7ac7

MALICIOUS

PDF

4.4 KB

MD5: b96f214e9452b5de3e48c4e1e334df8e SHA-1: b3ba4eecefc7ca8ac37b1607c702fba5967b0d47 SHA-256: 2f3b0fa8b40e7ac71a28e11f9027b2f75293630e2b93516ba4945bd148c9acf3

98 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1059.004 Command and Scripting Interpreter: PowerShell

The PDF file contains an XFA form and triggers the critical heuristic for CVE-2010-0188, indicating an exploit targeting Adobe Reader. The exploit is embedded within an XFA image/tif payload. The presence of ASCIIHexDecode and ASCII85Decode filters further supports the exploitation attempt. No scripts were extracted, and the document body was unreadable, but the exploit itself is the primary indicator of malicious intent.

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` `f240b036b6bca1bced030f9932abc905f60e8a5de6362448eebce30d5cb85eaf`	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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