PDF malware analysis — malicious · 36ac29da142fc66e

MALICIOUS

PDF

4.4 KB

MD5: a53e841fb6b15fee77202d12f61d649b SHA-1: f8bddce5bd9fc4b305798e2975b76d82530c7efc SHA-256: 36ac29da142fc66e5e5a5e0af1d7f5382557f7a380d97b2ed444148c7c93920d

158 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution

The PDF file contains an XFA form that triggers the CVE-2010-0188 exploit targeting Adobe Reader. Static analysis detected an embedded malicious payload within an XFA image, which ClamAV identified as Win.Exploit.CVE_2010_0188-7. The exploit is designed to achieve arbitrary code execution on the victim's system.

Heuristics 6

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.
ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV

ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_000_off000001f9.bin` `c45bae054bb6cadb49d431377f83bff9a972956055220706cda825009a782727`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x1F9	13469 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`acroform_b64_00.js` `837439053cdcc8539b8a40231621ae7bb563a87c0bbab4f5e8264a62f08020aa`	deobfuscated-js	PDF AcroForm base64 (decompressed) at offset 0x74A	8642 bytes
Detection ClamAV: Win.Exploit.CVE_2010_0188-7 Obfuscation or payload: unlikely

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