PDF malware analysis — malicious · 88ee112c1e2a1cd1

MALICIOUS

PDF

4.1 KB

MD5: a1bca768d9f95c6ffa92e726bb52acf8 SHA-1: be9e57a6da340a9f7a02c36232127cfb26741f22 SHA-256: 88ee112c1e2a1cd146ff0add9cec5f639956553752c098a047bf8afc1cc6bbbf

126 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: User Execution T1559.001 Component Object Model Hijacking

The PDF file contains an embedded XFA form that triggers the CVE-2010-0188 exploit, a known vulnerability in Adobe Reader related to LibTIFF processing. This exploit allows for arbitrary code execution. The ML classifier strongly indicates malicious intent. No document body or script content was available for further analysis, but the exploit itself is sufficient to classify this as malicious.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

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 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

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`embedded_file_obj0008.bin` `d2c8538b05d0aa71609db55ebf6044305c5a6fe927bbbbdc843d8916de4c853c`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xEA	12758 bytes

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