PDF malware analysis — malicious · f77220aebadc8ca8

MALICIOUS

PDF

3.7 KB

MD5: 8ae4773cc6d823413df36a065b3b1dff SHA-1: aebfbb92430290e3359e758723fbd64cb7fedcba SHA-256: f77220aebadc8ca8883a093b437b68e09c78a5d3110afa043818cfb02048f9a3

106 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: Malicious File

The PDF file contains embedded JavaScript and a RichMedia (Flash) object, indicating an attempt to exploit vulnerabilities. The embedded JavaScript stream, named 'javascript_obj0017_000.js', likely contains obfuscated code that uses the unescape() function, a common technique for hiding malicious actions. The presence of an embedded SWF file ('exploit.swf') further suggests a multi-stage attack. The script's purpose is inferred to be the download and execution of a secondary payload.

Heuristics 6

RichMedia (Flash) high PDF_RICHMEDIA

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

unescape() found — often used to decode shellcode in PDF JS exploits
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` `8ba5b5634dbea7160a973f8a4387523c9ae7b3cb162fc594dad6043b3edbb1f2`	pdf-javascript-stream	PDF /JS object 17 at offset 0x5EB	1742 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s).

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