PDF malware analysis — malicious · fad8ab5d0669f17e

MALICIOUS

PDF

29.8 KB

MD5: 15ee09074789c52fd1189f0ab0a6d4c8 SHA-1: 24da4041a534a5f1033ca6525b4f8a500b0cce46 SHA-256: fad8ab5d0669f17e3759019f5a2f7c953bb383117251fac9b03633b94cbdf351

106 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF contains embedded JavaScript and a RichMedia (Flash) object, indicating an attempt to exploit vulnerabilities. The embedded JavaScript stream, identified as 'javascript_obj0006_000.js', likely contains malicious code. The 'unescape()' call further suggests obfuscation of malicious content. The presence of an embedded file ('embedded_file_obj0016.bin') suggests a dropper mechanism. The overall behavior points to a malicious PDF designed to download and execute further stages.

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_obj0016.bin` `767382813fc770c9716554c3266b22eee1636037ca964af05acf6ff66db4a27d`	pdf-embedded-file	PDF EmbeddedFile object 16 at offset 0xC1C	26993 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact entropy is 7.98, consistent with packed or encrypted content.
`javascript_obj0006_000.js` `8cfcf867afb8d139b9691ada38df4ee4d904af8e53249ae068a75e0711802cb7`	pdf-javascript-stream	PDF /JS object 6 at offset 0xF9	1994 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s).

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