PDF malware analysis — malicious · aa97fd3094f0244b

MALICIOUS

PDF

42.4 KB

MD5: 93ccc26c17fe929ff1a5306b20a8b4b2 SHA-1: e91d12c4807773b20f830b77631e7f11be9b2e3f SHA-256: aa97fd3094f0244b0054240411611fb33df024410085b229712abbfe16aad711

156 Risk Score

Malware Insights

MITRE ATT&CK

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

The critical ClamAV detections 'Pdf.Exploit.Agent-36830' on both the main file and an extracted artifact strongly indicate a malicious PDF exploit. The presence of an embedded script payload further supports this, suggesting the PDF is designed to execute arbitrary code upon opening. The embedded URLs are benign or unknown, and the document body is not human-readable text, thus the rationale is based on the exploit signatures.

Heuristics 6

ClamAV: Pdf.Exploit.Agent-36830 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36830
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.
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
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_file_obj0008.bin` `1a79348c2c83dfd787667351d7e9b6978b489d38a24af4dfdf1a4312225a4df4`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xC6	42655 bytes
Detection ClamAV: Pdf.Exploit.Agent-36830 Obfuscation or payload: unlikely

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