PDF malware analysis — malicious · fa9d218f4847d3d6

MALICIOUS

PDF

4.1 KB

MD5: 1495ef8e21ff137d3b98e2b0eac852fd SHA-1: 93208c2860410dbdbedbdc2b5510d0e483ce7c66 SHA-256: fa9d218f4847d3d6af6711d446ad090ac7066b40b58c517f18fe1855a5360ea4

126 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1566.002 Spearphishing Attachment

The PDF file contains embedded content and triggers a critical heuristic for CVE-2010-0188, indicating an exploit targeting Adobe Reader's LibTIFF component. The ML classifier also strongly flags this PDF as malicious. The embedded file and script payload markers further support the exploitation of a vulnerability for code execution.

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` `26e1892c4281ed0287d03beb2b79bb895460512c515f8be037ae2abcb73175e9`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xEA	12869 bytes

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