PDF malware analysis — malicious · 51fedb442716d9ae

MALICIOUS

PDF

4.9 KB

MD5: 1c5e0f0a298ab929e8fca884b044e8b5 SHA-1: c767a06eb623881be5ba2d821dcafd7f9bd21f75 SHA-256: 51fedb442716d9aebb6979d4ced8e3286d61002397e8a7a82dbe514b2d2f2eec

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 presence of `unescape()` and obfuscated JavaScript within the `javascript_obj0017_000.js` stream suggests the script is designed to download and execute a second-stage payload. The document body content is minimal and appears to be related to exploit content rather than a user-facing lure.

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
`embedded_file_obj0014.bin` `a463045a7ba1ee21a32f2f9c06ce49e2aea789bd4a195cab95e0fa851b03d52c`	pdf-embedded-file	PDF EmbeddedFile object 14 at offset 0x4D4	1499 bytes
`javascript_obj0017_000.js` `6c4c288717ee189d0486a6e20d81fed107bcca7186d05954b3bdc069be8b026f`	pdf-javascript-stream	PDF /JS object 17 at offset 0xB63	1659 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s).

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