PDF malware analysis — malicious · f9cb8c89ef58f85e

MALICIOUS

PDF

12.8 KB

MD5: b83d13b68dc807d7726f35ff4f3f91f6 SHA-1: fbcb60c84bf81b528fc39c3b1810b53249355ab4 SHA-256: f9cb8c89ef58f85ed1c007a13e6c6e55f96aa6e5bf515175500972fb80c22379

208 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: User Execution: Malicious File T1059.001 Command and Scripting Interpreter: PowerShell

The PDF file contains an XFA form that triggers the CVE-2010-0188 exploit, targeting Adobe Reader. The embedded script payload, identified as embedded_pdf_script_00000364.bin, likely contains malicious code intended to be executed upon successful exploitation. The presence of XFA forms and embedded scripts strongly indicates an attempt to deliver a secondary payload or perform malicious actions.

Heuristics 7

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.
XFA form contains executable script high CVE related PDF_XFA_SCRIPT

PDF embeds an XFA form whose dataset contains a <script> or <xfa:script> block — XFA scripting has been the exploit primitive for several Adobe Reader RCEs (CVE-2010-0188 family, CVE-2018-4901, and others). Plain XFA without scripts is far less risky.
ClamAV: Pdf.Exploit.Agent-6136306-0 critical CLAMAV_DETECTION

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

PDF uses XML Forms Architecture — can contain script logic
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_00000364.bin` `89fb8c6b189b0187c594383cc4489a187056af69b8654c9317ff9f9e67c2df4d`	pdf-embedded-script	PDF raw stream script payload at offset 0x364	12348 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 33 long hex-escaped blob(s).

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