PDF malware analysis — malicious · 22b4eb673f817040

MALICIOUS

PDF

3.9 KB Authoring application: hXr (via va)

MD5: ae6066f3f885993a78083c7e7b2363ec SHA-1: 551e0d8e66fefcce3297345746dc530d368b7340 SHA-256: 22b4eb673f817040659c2fd61edac68ba70c8045eb86f0eb85c9234878dccb48

98 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1566.001 Spearphishing Attachment

The PDF file contains an embedded artifact and triggers a critical heuristic for CVE-2010-0188, indicating it exploits a vulnerability in Adobe Reader. The embedded file is likely the malicious payload delivered by this exploit. The XFA form and embedded file heuristics further support the exploitation vector.

Heuristics 5

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

PDF contains the CVE-2010-0188 exploit template: XFA JavaScript heap-spray setup, a generated TIFF image payload, and assignment of that TIFF data to an XFA image field rawValue to trigger Adobe Reader's LibTIFF parser.
Embedded script payload in PDF stream medium PDF_EMBEDDED_SCRIPT_PAYLOAD

PDF stream bytes contain an HTML/XFA <script> tag without accompanying Windows shell-execution primitives — common in accessible XFA forms but worth surfacing for analyst review.
Embedded file low PDF_EMBEDDED

PDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
XFA form low PDF_XFA

PDF uses XML Forms Architecture — can contain script logic
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
`embedded_file_obj0041.bin` `59d641ae41a1897df3ef27bff1705139324a38077204dd3f624b13971fbd3c36`	pdf-embedded-file	PDF EmbeddedFile object 41 at offset 0x53	9962 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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