PDF malware analysis — malicious · 3bfdc54788c29d51

MALICIOUS

PDF

7.1 KB

MD5: 93e5d23f501fd331a6f5589f3d33ceae SHA-1: 21a9ef149154d3da7f3e75f1638f6af29c25ed88 SHA-256: 3bfdc54788c29d514580f9c04313b669e82993ff13eb75e7e8c504bc9694b9f1

106 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File Execution: Malicious JavaScript

The PDF file contains embedded JavaScript and a Flash object, indicating an attempt to exploit vulnerabilities within the PDF reader. The presence of `unescape()` and JavaScript streams, along with an embedded SWF file, strongly suggests the execution of malicious code. The embedded JavaScript, named 'javascript_obj0017_000.js', is likely responsible for triggering the exploit and potentially downloading further malicious content.

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` `304d1394e305490c14daf0db898b4218265314e2b48bce25d62c2636658244e4`	pdf-embedded-file	PDF EmbeddedFile object 14 at offset 0x48C	3764 bytes
`javascript_obj0017_000.js` `8eca89d8ba6e05341cab405be7afbaad22ca6cec35b6077639ff64105a9887c8`	pdf-javascript-stream	PDF /JS object 17 at offset 0x13F4	1674 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s).

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