PDF malware analysis — malicious · ce87c6f04a25154d

MALICIOUS

PDF

32.2 KB

MD5: 4da465d7f46e60aab7b7ad785e303068 SHA-1: 9ab46407ec1f159029f40fae4298a05f6f611fbf SHA-256: ce87c6f04a25154d7b7a301610a958e560868ac24250c5f07d46fe0bf9e1daa0

186 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious File

The file is a PDF containing embedded JavaScript and a RichMedia (Flash) object, identified by ClamAV as 'Pdf.Exploit.Agent-35955'. The embedded Flash file 'fhulbqZiSSHauq.swf' is highly suspicious and likely contains exploit code. The presence of JavaScript actions and embedded files points towards an attempt to exploit vulnerabilities within the PDF reader to execute malicious content.

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
`fhulbqZiSSHauq.swf` `c2b666a3ef4c191b77b78c037656e50477b8ba3d35fd61ae843a3a1f4d41c5c1`	pdf-embedded-file	PDF EmbeddedFile object 16 at offset 0x16B5	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` `f6be14953914337f5e887105c5c21ef376be445599965bd80a48fc82f87fc0ea`	pdf-javascript-stream	PDF /JS object 6 at offset 0x150	4078 bytes

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