PDF malware analysis — malicious · 7a7755d9996b846d

MALICIOUS

PDF

19.4 KB

MD5: e99e7e9f5947264b4dfa2a2daa4499ec SHA-1: ce8460de43f45ef73b5aadd9db618132c4cd00db SHA-256: 7a7755d9996b846d78b9b2a05216ea781039a0895b083aacf6512e6d640be7e2

116 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The PDF was flagged by a machine learning classifier and ClamAV as malicious, specifically detecting an embedded exploit payload. The presence of XFA forms and embedded files further indicates a malicious structure designed to execute code. While specific URLs were benign, the core finding is the embedded exploit.

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
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 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://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` `e06bcb075ad3082d6904730088b3d0e5f39b8b247cb23edca577d1eed4bd860d`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xC8	19108 bytes

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