PDF malware analysis — malicious · c000c18bd8a92eaf

MALICIOUS

PDF

3.9 KB Authoring application: hXr (via va)

MD5: 5af160d36c6c452258a3db837a686a2d SHA-1: 1768f28f6617c5ed88d57711be2c0c3472d15132 SHA-256: c000c18bd8a92eaf35df8accbda7456b110ab61b0f7c712c2722d89774aa4fdb

98 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains an embedded artifact and triggers a critical heuristic for CVE-2010-0188, indicating an exploit targeting Adobe Reader. The embedded file, named 'embedded_file_obj0041.bin', is likely the malicious payload. The presence of XFA forms and embedded scripts further supports the exploit delivery mechanism. The attack pattern is consistent with a targeted phishing attempt leveraging a known PDF vulnerability.

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` `ec8a82b99d64ad21d9064d21851707a6fad33c962e95984787ab6c7efe302bc2`	pdf-embedded-file	PDF EmbeddedFile object 41 at offset 0x53	9937 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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