PDF malware analysis — malicious · 7e08dfe9025592d3

MALICIOUS

PDF

76.1 KB

MD5: 522e511a93bf6f9e284145498bb33446 SHA-1: 88b2e7ca5191d5733c617570d25e007931051d03 SHA-256: 7e08dfe9025592d3e25ed89b1f91b1623ec7c3b52b701c3ce47b3ccd3d2823f9

176 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The PDF file contains an embedded script payload and exploits CVE-2010-0188, a known vulnerability in Adobe Reader's handling of XFA forms. This indicates the document is designed to deliver and execute a secondary malicious payload upon opening. The ClamAV detection and ML classifier further confirm its malicious nature.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 6

Adobe Reader LibTIFF XFA image exploit — CVE-2010-0188 critical CVE likely CVE_2010_0188

PDF contains the CVE-2010-0188 exploit template: XFA JavaScript heap-spray setup, a generated TIFF image payload, and assignment of that TIFF data to an XFA image field rawValue to trigger Adobe Reader's LibTIFF parser.
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` `5761016a7b3eee76e458655314993bba6105cb0fc739b22406ba83c72e716c78`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xC6	77171 bytes

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