PDF malware analysis — malicious · 60b782cf4a418919

MALICIOUS

PDF

18.3 KB

MD5: df9498bba3085952cabea7394d90827d SHA-1: 34124c974fa3bf0f54b5e1231b8cd4b84cfebcdb SHA-256: 60b782cf4a4189191dcd3f83668b44cc369fa598407cd46b3b405df2b8131ed6

168 Risk Score

Malware Insights

MITRE ATT&CK

T1059.007 JavaScript T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF utilizes XFA forms and contains an embedded JavaScript payload, strongly indicating it's designed to execute malicious code. ClamAV detections confirm its malicious nature, flagging it as an exploit dropper. The embedded script likely downloads and executes a secondary payload, a common technique for initial compromise.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 5

ClamAV: Pdf.Exploit.Dropped-78 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Dropped-78
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.
XFA form low PDF_XFA

PDF uses XML Forms Architecture — can contain script logic
Embedded script payload in PDF stream low 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 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_00000329.bin` `513b68c0a6c74befb9194370f6e08502e5d347c83cd5494c8cb564271e88f347`	pdf-embedded-script	PDF raw stream script payload at offset 0x329	17986 bytes
Detection ClamAV: Pdf.Exploit.Agent-36809 Obfuscation or payload: unlikely

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