PDF / .TXT malware analysis — malicious · f24040f6ee9dcaea

MALICIOUS

PDF / .TXT

18.1 KB

MD5: 0a4e5d822980eb39717f6a4458a0a784 SHA-1: c699067d77686bbb1935693a22c88b44f323dfe6 SHA-256: f24040f6ee9dcaeae4eb1ae13186a98b68e43a7dd01bdb431a8c4a3e7a7bd9a2

66 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings including PDF_JAVASCRIPT, PDF_JS, and PDF_EVAL. The eval() call suggests obfuscated code execution. An external JavaScript file was also extracted. The presence of these elements strongly suggests an attempt to exploit a vulnerability within the PDF reader to run malicious code, likely to download and execute a second-stage payload.

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.
ASCII85Decode filter (with exploit indicators) low PDF_FILTER_85

ASCII85 encoding filter present alongside exploit delivery indicators — uncommon outside of obfuscation
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_obj0011_000.js` `51b119dd8723b90e8ebb7780f5cef7b0e5b35802fbd6ad65e76f3b54b6c3f3d6`	pdf-javascript-stream	PDF /JS object 11 at offset 0xDD	14538 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).

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