PDF malware analysis — malicious · 2e1b0b34946b0a9f

MALICIOUS

PDF

30.7 KB

MD5: 05ca385f672aa0dfaa1665a925fa40d8 SHA-1: 1c6ea38f7797895e14d742129ef6b11c05a8159b SHA-256: 2e1b0b34946b0a9f743eab5f4ffde4dcd5ca6833b90a6378b31b6e6d3a79887d

216 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious File

This PDF file was detected as malicious by ClamAV with the signature Pdf.Exploit.Agent-35955. Static analysis revealed embedded JavaScript and a RichMedia (Flash) object, indicating an exploit attempt. The embedded Flash file, GUauqEgzUKP.swf, is likely the malicious payload. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

Nyx PDF Classifier malicious score 0.9945

Heuristics 7

ClamAV: Pdf.Exploit.Agent-35955 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-35955
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.
RichMedia (Flash) high PDF_RICHMEDIA

PDF contains /RichMedia (Adobe Flash) which is a historic exploit vector
JavaScript action low PDF_JAVASCRIPT

PDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
Embedded JS stream low PDF_JS

PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
Embedded file low PDF_EMBEDDED

PDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`GUauqEgzUKP.swf` `c2b666a3ef4c191b77b78c037656e50477b8ba3d35fd61ae843a3a1f4d41c5c1`	pdf-embedded-file	PDF EmbeddedFile object 16 at offset 0x10B3	26774 bytes
Detection ClamAV: Pdf.Exploit.Agent-35955 Obfuscation or payload: likely Carved artifact entropy is 7.99, consistent with packed or encrypted content.
`javascript_obj0006_000.js` `ff83dc98a7f087f0600da54101df430f3700ad13a571affd829adc1979ff6853`	pdf-javascript-stream	PDF /JS object 6 at offset 0x148	2643 bytes

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