PDF malware analysis — malicious · a61525f55420b2a7

MALICIOUS

PDF

18.4 KB

MD5: 52735605d75886d584079e80b8b11451 SHA-1: e2f599f9cd25eebf266ba9ecaf7e42032c86e300 SHA-256: a61525f55420b2a76ecee1fd73833cfcd5e06805d677229a284a152a305193d6

148 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1566.002 Spearphishing Attachment

The PDF document exhibits characteristics of malicious intent, including the presence of an XFA form and an embedded script payload. ClamAV detections further confirm its malicious nature, identifying it as Pdf.Exploit.Agent-36789 and Pdf.Exploit.Agent-36809. The embedded script is likely responsible for delivering the exploit, although its specific functionality cannot be determined without further analysis. The embedded URL is likely part of the exploit chain.

Heuristics 5

ClamAV: Pdf.Exploit.Agent-36789 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36789
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://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_00000325.bin` `533caa56954783915a562a9d24ea7bb3731351f295a4d993d5fec36b5e7fb810`	pdf-embedded-script	PDF raw stream script payload at offset 0x325	18070 bytes
Detection ClamAV: Pdf.Exploit.Agent-36809 Obfuscation or payload: unlikely

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