PDF / .TMP malware analysis — malicious · 1ec2e54e02817a49

MALICIOUS

PDF / .TMP

1.95 MB

MD5: 90f9fcbed6d0a331833842935f75dd9b SHA-1: 0f3cc200d5a79d08723533ee9fb5ebad74277ed7 SHA-256: 1ec2e54e02817a49e4f8a94fdcebbc8c68ef7baf94900fc8fd4374113c59b7df

86 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The PDF file contains obfuscated JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics, and the presence of an embedded JavaScript file. ClamAV also flagged it as Heuristics.PDF.ObfuscatedNameObject. The embedded JavaScript, named 'javascript_obj0032_000.js', is likely responsible for downloading and executing a secondary payload, a common technique for initial access.

Heuristics 5

ClamAV: Heuristics.PDF.ObfuscatedNameObject critical CLAMAV_DETECTION

ClamAV detected this file as malware: Heuristics.PDF.ObfuscatedNameObject
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.
String.fromCharCode low PDF_FROMCHARCODE

String.fromCharCode found — used to construct payload strings dynamically. Common in benign JavaScript libraries for codepoint manipulation, so this alone is informational; weaponised use is also caught by the dedicated fromCharCode-stage and exploit-shape rules. (matched inside decoded stream)
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_obj0032_000.js` `9ed82a5a7963156c7b406337e9581893aa30062f468406fb598bd5d78f1a453b`	pdf-javascript-stream	PDF /JS object 32 at offset 0xE7	16105 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).

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