PDF malware analysis — malicious · 31b6721bfc57f7c9

MALICIOUS

PDF

3.4 KB

MD5: 4973dda4c524ffed5131911d7b131e1b SHA-1: 5ea0fe10eb295a849ab70a778786ca1282eab209 SHA-256: 31b6721bfc57f7c9152bfdf684f8896ac0d87c52546176a580a8226b78ddca3d

78 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution

The PDF file contains an XFA form and triggers the critical CVE-2010-0188 heuristic, indicating an exploit targeting Adobe Reader's LibTIFF component. The exploit is embedded within an XFA image, which is decompressed and identified as a suspicious artifact. This suggests the file is designed to deliver a malicious payload upon opening in a vulnerable version of Adobe Reader.

Heuristics 4

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.
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_off000001e9.bin` `7cb0ddd28194787e9218c9da3c0add4b5599ac18d43304ea0035bdf86c88259f`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x1E9	13469 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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