PDF malware analysis — malicious · 2ecdcbecf110478f

MALICIOUS

PDF

2.9 KB

MD5: 6fa5297bdae17cdb1e520095dbe2a1bb SHA-1: fa11df6fea33acbe0a893de81aba46ffa41db9ff SHA-256: 2ecdcbecf110478f9ab247ff3891aac594029aa227a1f9dfa208aff167c8e23d

106 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 JavaScript T1204.002 Malicious JavaScript

The PDF file contains embedded JavaScript and a Flash object, both flagged as suspicious. The JavaScript stream, named 'javascript_obj0017_000.js', exhibits obfuscation and contains an eval() call, indicating it's designed to execute arbitrary code. The presence of an embedded SWF file further suggests a multi-stage attack. The primary function of the script appears to be the execution of the embedded Flash exploit, which likely leads to the download of a secondary payload.

Heuristics 6

RichMedia (Flash) high PDF_RICHMEDIA

PDF contains /RichMedia (Adobe Flash) which is a historic exploit vector
eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution
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
`exploit.swf` `09da31fcb002129249bb529a7f84709739a96f62781db5f4c6d9bf6e4308eb15`	pdf-embedded-file	PDF EmbeddedFile object 14 at offset 0x4D1	102 bytes
`javascript_obj0017_000.js` `9ceebd015b67be9633c39711d9aa20afa39d61b87beacd0cbdf8b9d4074a951e`	pdf-javascript-stream	PDF /JS object 17 at offset 0x5EB	1011 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).

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