PDF malware analysis — malicious · 6f0d86a29f4f4ec1

MALICIOUS

PDF

12.6 KB

MD5: 5566655d9d5ca9126859c9c8d2ce30ca SHA-1: b86af2f8242d79461061699039246dcf02d06f43 SHA-256: 6f0d86a29f4f4ec1c0246e5f89a4ddc5b94157a43bb081681650f114c9d22501

170 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1059.007 JavaScript

The file is a PDF that exploits the CVE-2010-0188 vulnerability in Adobe Reader's LibTIFF component. Static analysis detected an embedded XFA form and a script payload. The embedded JavaScript, though heavily obfuscated, is characteristic of exploit delivery mechanisms. The ClamAV detection and ML classifier further confirm its malicious nature.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

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.Agent-6136306-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-6136306-0
XFA form low PDF_XFA

PDF uses XML Forms Architecture — can contain script logic
Embedded script payload in PDF stream low 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.
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.
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.

URL http://www.xfa.org/schema/xfa-template/2.5/

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`embedded_pdf_script_00000359.bin` `d3fa66fecac860f5411fedcd1b39ccb3f4dc0eac4a8b40f7605b6b46ddbf0aff`	pdf-embedded-script	PDF raw stream script payload at offset 0x359	12200 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).

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