PDF malware analysis — malicious · f3feb85ec6e0a417

MALICIOUS

PDF

31.6 KB

MD5: 25aa1b18faf4d1661714fba194db35c5 SHA-1: 37aa7995b93d3d87f3c45eae51e59c3062fc851d SHA-256: f3feb85ec6e0a4172059d27dc3373870bb574a44d2a5f3fb365a5c74f87915d1

186 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1059.007 JavaScript

The PDF contains embedded JavaScript and RichMedia (Flash) content, indicating an exploit attempt. ClamAV detection of 'Pdf.Exploit.Agent-35955' confirms maliciousness. The embedded JavaScript is likely responsible for loading and executing the Flash exploit, which is a common technique for exploiting PDF vulnerabilities. The extracted artifact 'lCGYYmsmSurE.swf' is also flagged as suspicious.

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
`embedded_file_obj0016.bin` `c2b666a3ef4c191b77b78c037656e50477b8ba3d35fd61ae843a3a1f4d41c5c1`	pdf-embedded-file	PDF EmbeddedFile object 16 at offset 0x1439	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` `eb6032e508de7af4c2e8a64a16026670893ada9c3f5ca19dc057f5134d0afcfb`	pdf-javascript-stream	PDF /JS object 6 at offset 0x13C	3371 bytes

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