PDF malware analysis — malicious · e00ef68036c02205

MALICIOUS

PDF

18.3 KB

MD5: 716d69632abc289228384794bc8c6bc0 SHA-1: e76be3ab59a0d7db52aae5dbb8e2147d2971b27e SHA-256: e00ef68036c02205d8c94c504c5abe87a3f6b3eee5fb37b9eae523f04d33d5d9

148 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1566.002 Spearphishing Attachment

The PDF file utilizes XFA forms and contains an embedded script payload, as indicated by heuristic firings. ClamAV detections 'Pdf.Exploit.Dropped-78' and 'Pdf.Exploit.Agent-36809' on the main file and an extracted artifact respectively, confirm its malicious nature. The embedded script is likely responsible for downloading and executing a second-stage payload, although its exact functionality cannot be determined due to its obfuscated nature. The presence of an embedded URL further supports the delivery mechanism.

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.
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_00000329.bin` `d4a18fef08f0c9f3ec994f7b29a5a19f02fa66ff9e44e8caf5ceb67fb0acd0c3`	pdf-embedded-script	PDF raw stream script payload at offset 0x329	18041 bytes
Detection ClamAV: Pdf.Exploit.Agent-36809 Obfuscation or payload: unlikely

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