PDF malware analysis — malicious · 804d7913ccbfb265

MALICIOUS

PDF

42.6 KB

MD5: 4a4ad9d9965f8c6ab97d97ad3067fdc5 SHA-1: 5c58d21b0da7ec9d7d652152cbe4a1b573983c66 SHA-256: 804d7913ccbfb265b04df6856dbe6500f4fc25a10398b3726fc95c1692e5beba

156 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1566.001 Spearphishing Attachment

The critical ClamAV heuristic firings, specifically 'Pdf.Exploit.Agent-36830', indicate the file is a known PDF exploit. The presence of an embedded script payload and an embedded file further supports this. The file likely attempts to exploit a vulnerability within the PDF reader to execute a malicious payload, as suggested by the embedded script and the ClamAV detection name.

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` `68ee044301538d3decd1663767dc3eba1a4daf5f12783ef9558b6ea5f86422ea`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xC6	42856 bytes
Detection ClamAV: Pdf.Exploit.Agent-36830 Obfuscation or payload: unlikely

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