PDF malware analysis — malicious · 8d6a8bf209ff1995

MALICIOUS

PDF

11.7 KB

MD5: 3b1e411a3e3cb53afc05cc157181d390 SHA-1: 6bcbefad5fcca8669624eb302494356282abcc18 SHA-256: 8d6a8bf209ff1995f0283c7397e0cf4c457a44a67db01036a62e3f7abb9494a3

96 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1566.002 Spearphishing Attachment

The PDF contains an embedded script payload and is detected by ClamAV as Pdf.Exploit.Dropped-78. The presence of an embedded file and XFA form suggests an attempt to exploit PDF vulnerabilities. The embedded script is likely responsible for downloading and executing a second-stage payload, although its specific actions are not detailed in the provided evidence.

Heuristics 5

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
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` `30dd9a779a02d2d15492cc655e1a42598cc538879d9bde5cc679804950999f5a`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xC8	11234 bytes

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