PDF malware analysis — malicious · 2c5e8471be9f52ff

MALICIOUS

PDF

5.6 KB

MD5: 1b0e484e906e94fce44247be88034a3f SHA-1: 26f9f21441f1b3adb96b9230c0bf435275688199 SHA-256: 2c5e8471be9f52ff0d71266d33ed88d4912938615cba2d8f2cc512476bc20376

188 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF sample was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Exploit.CVE_2010_0188-10', indicating exploitation of CVE-2010-0188. An embedded file, 'embedded_file_obj0006.bin', was also detected as malicious. The ML classifier provided a very high score, supporting the malicious nature of the document. The attack pattern involves leveraging a PDF vulnerability to execute arbitrary code.

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` `343456ff251febd7866deb523ca38d596d3e8bdbe11af8bd1079dc5fa6f889cd`	pdf-embedded-file	PDF EmbeddedFile object 6 at offset 0x410	33675 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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