PDF malware analysis — malicious · 1df0b8cdda671128

MALICIOUS

PDF

32.3 KB

MD5: 75a235bb9b13ecd6317d4324324cd72a SHA-1: 61a7284aeb8406020034625ffd025d05ffefad3a SHA-256: 1df0b8cdda671128fbdf3de179b110f55b3fd72a6aa75abb9fa2fd6c32840479

186 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1559.002 Component Object Model Hijacking

The PDF file contains embedded JavaScript and a RichMedia (Flash) object, which are commonly used to exploit vulnerabilities. The ClamAV detection 'Pdf.Exploit.Agent-35955' strongly indicates an exploit attempt. An embedded SWF file, named 'MMZoGAJqyyZZ.swf', was extracted, suggesting it is the primary payload or a component thereof. The presence of JavaScript and the embedded Flash file points to an attack pattern focused on exploiting PDF reader vulnerabilities to execute malicious code.

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
`MMZoGAJqyyZZ.swf` `c2b666a3ef4c191b77b78c037656e50477b8ba3d35fd61ae843a3a1f4d41c5c1`	pdf-embedded-file	PDF EmbeddedFile object 16 at offset 0x16EF	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` `673f3eb1dfa4c4f6bce37a8e5547515dca40e5a0275c658751ed95370037636e`	pdf-javascript-stream	PDF /JS object 6 at offset 0x142	4149 bytes

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