PDF malware analysis — malicious · 256847f0630f4b69

MALICIOUS

PDF

3.8 KB Authoring application: l (via va)

MD5: 8c0c684d9f5ab782fd818cbfb48967a0 SHA-1: 4d27983ef81fb6f44b85d6cf85d9e59d966d088b SHA-256: 256847f0630f4b690f15692b42f754bc86f5f82716cc3a1d1a3c5b18eaf5427f

158 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1566.001 Spearphishing Attachment

The PDF file contains an embedded script payload and triggers the CVE-2010-0188 exploit for Adobe Reader. This indicates the file is designed to exploit a known vulnerability to execute arbitrary code. The embedded file and ClamAV detection further support its malicious nature.

Heuristics 6

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.
ClamAV: Pdf.Exploit.Dropped-84 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Dropped-84
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` `a366bc75bd39fdc4e69b9901f5487c0c9ae3e741c85bc42dadb33506558cd5dc`	pdf-embedded-file	PDF EmbeddedFile object 41 at offset 0x53	9829 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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