PDF malware analysis — malicious · 2034e6db5b3db66d

MALICIOUS

PDF

4.1 KB

MD5: 22f9f1b91a86a3b7d3aa6fdce3d8103b SHA-1: 2820bbb6a351b67a46de4ceec501dc8b1ecce2f8 SHA-256: 2034e6db5b3db66d05e7a799481d9e414a60be562fc64e8c1dfbb0360102e30b

128 Risk Score

Malware Insights

MITRE ATT&CK

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

The critical heuristic firing for CVE-2010-0188 indicates that this PDF exploits a known vulnerability in Adobe Reader. The ML classifier also strongly flagged this PDF as malicious. The embedded file and script payload markers further support the malicious nature of the document, suggesting it's designed to deliver a secondary payload.

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` `ebe3c55f3d6995dc9a9aed75b628f2c00241ecfb0fd6a19ee7561e7f455d1388`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xEA	12597 bytes

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