PDF malware analysis — malicious · 586e250149d5b337

MALICIOUS

PDF

79.1 KB

MD5: 27a35f8c48fcedcde340d72c8dc37450 SHA-1: 86f04eb5b9a07a44edfe344f36eda050e31420e3 SHA-256: 586e250149d5b337354b79700c5a63a6848a0254391247037bf33bfe73021140

180 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious File T1204.002 Malicious File: User Execution: Malicious Attachment

The PDF utilizes XFA forms, a known vector for embedding malicious scripts. The ML classifier and ClamAV detections strongly indicate malicious intent, specifically targeting PDF exploits. The embedded script payload, though not directly analyzed for its specific actions, is the likely mechanism for delivering the exploit and subsequent malicious activity.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 5

ClamAV: Pdf.Exploit.Agent-6136306-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-6136306-0
ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV

ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
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.
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://ns.adobe.com/xdp/
- http://www.xfa.org/schema/xfa-template/2.5/
- http://www.xfa.org/schema/xfa-data/1.0/

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`embedded_pdf_script_0000023e.bin` `253449506704c693cc5acad5156d5faff0ba5db3707b1a1b2e59f3a8cf4c488f`	pdf-embedded-script	PDF raw stream script payload at offset 0x23E	80301 bytes
Detection ClamAV: Pdf.Exploit.Agent-36769 Obfuscation or payload: unlikely

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