PDF malware analysis — malicious · 8184d4562f40bf12

MALICIOUS

PDF

4.6 KB Created: 2008-08-06 01:42:27 Authoring application: Scribus 1.3.3.12 (via Scribus PDF Library 1.3.3.12)

MD5: 706aa1bbbd612af966ab311431015d4f SHA-1: a7f856317092e7abd698a6196babae9e33f37510 SHA-256: 8184d4562f40bf121f8c409e4e72013e0a6fbaa5061c4bb1e4727702a44b95a2

60 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 Command and Scripting Interpreter: PowerShell T1204.002 Malicious File: Malicious File

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. The JavaScript stream is obfuscated and contains an eval() call, suggesting it's designed to execute malicious code. The heuristic EXTRACTED_FILE_STATIC_TRIAGE also flags script obfuscation indicators. The primary intent appears to be downloading and executing a second-stage payload, though the exact mechanism is obscured by the JavaScript obfuscation. The PDF differential parser also failed, which can sometimes indicate tampering.

Heuristics 5

eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution (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.
PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED

The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PSEOF. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
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_obj0013_001.js` `cc19d3f48f5768d54e60dc435c8e41e7c7367f80b4cb45976a22f50f9f31c406`	pdf-javascript-stream	PDF /JS object 13 at offset 0x36A	6340 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 4 eval/decoder/string-building token(s).

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