PDF malware analysis — malicious · f8cff184c562b87c

MALICIOUS

PDF

11.6 KB

MD5: 94ec40ec700c6564ff84f7cde432ac12 SHA-1: 82ef355b04d2f10506dba32cea927a5a5e9f7afb SHA-256: f8cff184c562b87cd0b7113465b362b02633ad5008584151d2d7d6f973beb126

98 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious Link T1204.002 Malicious Link: Malicious File

The PDF file contains an embedded script payload, indicated by the 'PDF_EMBEDDED_SCRIPT_PAYLOAD' heuristic. ClamAV detection as 'Pdf.Exploit.Dropped-78' further confirms its malicious nature. The embedded file 'embedded_file_obj0008.bin' is likely the dropped payload. The attack pattern involves luring the user to open a malicious PDF that executes an embedded exploit.

Heuristics 6

ClamAV: Pdf.Exploit.Dropped-78 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Dropped-78
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
Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGE

One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
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` `c500503ff06277bc17beabb668b818da388c9afeff3fa9816b03f7ecfe77c9da`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xC8	11140 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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