PDF malware analysis — malicious · 20b798f1f9acc5d5

MALICIOUS

PDF

5.6 KB

MD5: daca3de399fb13af9c0899b3e8324431 SHA-1: 329949998ef2739c2d76fc2cce6a24925d1d115c SHA-256: 20b798f1f9acc5d540c358a94c923a0d519de2fe7886103ea17a7810322c59f8

188 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious Link T1204.002 Malicious File

The PDF file was flagged by multiple heuristics and ClamAV as malicious, specifically indicating an exploit for CVE-2010-0188. An embedded file was also detected, which ClamAV also identified as malicious. The ML classifier assigned a very high probability of maliciousness. The document body content is not human-readable and appears to be obfuscated or corrupted data, providing no direct clues about the lure.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 6

ClamAV: Pdf.Exploit.CVE_2010_0188-10 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.CVE_2010_0188-10
ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV

ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
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
Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGE

One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`embedded_file_obj0006.bin` `f4c1907f1ba8eb93c6d2635800a69853a854e7bb0c96e7529965114ed290036c`	pdf-embedded-file	PDF EmbeddedFile object 6 at offset 0x411	33668 bytes
Detection ClamAV: Pdf.Exploit.CVE_2010_0188-10 Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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