PDF malware analysis — malicious · 881aee0e88220a4b

MALICIOUS

PDF

99.8 KB

MD5: 141a685e3bd0804c2a06d0d705bead0d SHA-1: 2aecb3754d74f488cb0f86c7e286ffe482e22afa SHA-256: 881aee0e88220a4bec42a0d03d752be055830c2f011df5bd11a4fb1ab66f07e6

116 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The sample is a PDF file identified as malicious by an ML classifier and heuristics. It exploits the CVE-2010-0188 vulnerability in Adobe Reader's XFA form processing, which allows for the execution of arbitrary code. The embedded file and script payload indicators further support this attack vector. No specific family could be identified, but the exploit suggests a targeted attack.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 5

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.
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` `106117f685224a969603b9e393c6acacafbd36ce5e5998298ffdac374cdd7c7e`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xC6	101404 bytes

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