PDF malware analysis — malicious · 943991274442ec71

MALICIOUS

PDF

4.1 KB

MD5: fd87ae86c73ea9b3474bb5bc5327f7ff SHA-1: 65fa8d4be3e7324a9c66523c7d6eda35953b5d55 SHA-256: 943991274442ec71aba74236b9b83beace7e2e545cf983ecff966f1ad948415a

126 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1059.001 PowerShell

The PDF file contains an embedded script payload and triggers a critical heuristic for CVE-2010-0188, indicating exploitation of Adobe Reader. The ML classifier also strongly flags this as malicious. The primary attack vector appears to be exploiting this known vulnerability to achieve code execution, likely for downloading and running additional malicious content.

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` `f15ab58c3a30b86b05220c316088d20fdd8f59bdee67138dbe6e21eea110d273`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xEA	12870 bytes

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