PDF malware analysis — malicious · 753ce5c1cf7a5638

MALICIOUS

PDF

73.4 KB

MD5: 0f58c007519fbab21b586997e5d976b1 SHA-1: 6d704a005acec64bb28032b8afab521676e9177b SHA-256: 753ce5c1cf7a56380fd74f90e903da5600ba35fd955feac1fec679e7f13c976b

168 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1059.007 JavaScript

The sample is a PDF file that contains embedded JavaScript, which is designed to exploit the CVE-2010-0188 vulnerability in Adobe Reader. This exploit is used to execute a malicious payload, as indicated by the critical heuristic firings and the ML classifier's high confidence score. The embedded script is heavily obfuscated, but its presence and the exploit target strongly suggest a malicious intent to compromise the user's system.

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.
ClamAV: Pdf.Exploit.Agent-6136306-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-6136306-0
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://www.xfa.org/schema/xfa-template/2.5/

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`embedded_pdf_script_0000034e.bin` `77938786d68faff70da9d047f3b6947770315b8f6d33e9270b3b431ba49f35eb`	pdf-embedded-script	PDF raw stream script payload at offset 0x34E	74422 bytes

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