PDF malware analysis — malicious · 0ab723112d3566cb

MALICIOUS

PDF

99.8 KB

MD5: e78865a2ab551c4f37f05591a5ee0ca5 SHA-1: 880b6a54aaf14ce2bfe3ec98a52d8b3204cbfdb8 SHA-256: 0ab723112d3566cbb4ef220fddfca3eb363939d807a11902cca4be3806cb6bff

116 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1566.001 Phishing: Spearphishing Attachment

The PDF file exploits the CVE-2010-0188 vulnerability in Adobe Reader's LibTIFF component, which is a known method for arbitrary code execution. The presence of an embedded script payload and the ML classifier's high confidence further support this assessment. The benign URLs found do not detract from the malicious nature of the exploit.

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` `0f967426ebea77c2f3bd5a998861ac8bdd1c7356331a80552f7594f250e8665f`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xC6	101440 bytes

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