PDF malware analysis — malicious · 42ba1dc538c40de6

MALICIOUS

PDF

3.9 KB Authoring application: hXr (via va)

MD5: 537830c418f5a7fa45e22d21c9ec5965 SHA-1: 33f9096de567bc5ea6e5e6033ed98fd1c9478c76 SHA-256: 42ba1dc538c40de6dd61bb305af482ab6656187e502a78946fcc813dc50286d5

98 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious Link T1204.001 Malicious Link: Malicious Link T1204.002 Malicious Link: Clickjacking

The PDF file contains an embedded script payload and exploits CVE-2010-0188, a known vulnerability in Adobe Reader related to XFA forms. The embedded file 'embedded_file_obj0041.bin' is likely the second-stage payload. The exploit targets the LibTIFF component within Adobe Reader's XFA processing.

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` `32f3d5d9d9760029dfa72a0fe94e498bff47070f471fcd9952c213508e91b1a7`	pdf-embedded-file	PDF EmbeddedFile object 41 at offset 0x53	9950 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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