PDF malware analysis — malicious · 242b4ee64c529455

MALICIOUS

PDF

3.8 KB Authoring application: hXr (via va)

MD5: d350b10e4ae7baabc8100fc4010d8d7b SHA-1: ef24b6256fc36359b3da8e830570bd294d27972d SHA-256: 242b4ee64c529455827a42a41855f681d6ffb59cb8c69fda3a1b5b3554d36e1c

98 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1566.002 Spearphishing Attachment

The PDF file contains an embedded script payload and triggers a critical heuristic for CVE-2010-0188, indicating it exploits a vulnerability in Adobe Reader's LibTIFF component via XFA forms. The embedded file, 'embedded_file_obj0041.bin', likely contains the second-stage payload. The attack pattern is consistent with a malicious document designed to exploit a known vulnerability for initial execution.

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` `ad3864c77cdbcb0aa991a8d5e5da3ecc4898832aa5903f2fd419718c0c526d2b`	pdf-embedded-file	PDF EmbeddedFile object 41 at offset 0x53	9948 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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