PDF malware analysis — malicious · 318a3ce515d264ce

MALICIOUS

PDF

7.6 KB Created: 2012-04-17 19:53:38

MD5: 19881718622244120b80af4ace89a931 SHA-1: c9fed7df4a1b888ee056f88b953e4399f53aae61 SHA-256: 318a3ce515d264ce44419dfbab4976cddcdddd7ea17d70cb340a16243d5906ee

128 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious File T1204.002 Malicious File: User Execution T1059 Command and Scripting Interpreter T1059.001 Command and Scripting Interpreter: PowerShell

The critical ClamAV detection and high ML classifier score strongly indicate malicious intent. The PDF contains an embedded script payload, suggesting it's designed to exploit a vulnerability and download a second-stage payload. The embedded file artifact further supports this, likely being the dropped malware. The document body text is largely unreadable, but the heuristics are sufficient for a high-confidence assessment.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 5

ClamAV: Pdf.Exploit.Dropped-156969-1 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Dropped-156969-1
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_obj0008.bin` `eb95dc384d253c0cb02106b2169cf5571ca900aa13e2bb6779c58d3ac0790377`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xBAF	7163 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 4 long base64-like blob(s).

Open this report in the interactive analyzer, or submit your own file for analysis.