PDF / .TMP malware analysis — malicious · d3ad511e235d03b2

MALICIOUS

PDF / .TMP

1.95 MB Created: 2008-07-26 19:43:58 Authoring application: Scribus 1.3.3.12 (via Scribus PDF Library 1.3.3.12)

MD5: 52870ae779c58743caf9de7a9d5f12a3 SHA-1: f0608314153832e9b45b8410be24fba94efc346c SHA-256: d3ad511e235d03b28ee726a6dcc0e8f40568a7c36bd852e08da51c7b17607676

98 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1059.007 JavaScript

The PDF sample contains embedded JavaScript, indicated by PDF_JAVASCRIPT and PDF_JS heuristics. The JavaScript stream is heavily obfuscated, utilizing eval() and unescape() calls, as flagged by PDF_EVAL and PDF_UNESCAPE. This obfuscation suggests an attempt to hide malicious code, likely for downloading and executing a secondary payload. The extracted artifact 'javascript_obj0014_000.js' is also noted as suspicious due to its size and obfuscation. The confidence is slightly reduced due to the inability to fully deobfuscate and determine the exact payload.

Heuristics 5

eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution (matched inside decoded stream)
unescape() call high PDF_UNESCAPE

unescape() found — often used to decode shellcode in PDF JS exploits (matched inside decoded stream)
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.
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 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0014_000.js` `4c19f79254cc9fbec28557f007f40f64e77a94e11b3234e07e49a7390ff43120`	pdf-javascript-stream	PDF /JS object 14 at offset 0x368	30386 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).

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