PDF malware analysis — malicious · dd1719db7a430c6d

MALICIOUS

PDF

2.6 KB

MD5: 3e6afda113b1824f212364f83cc200b1 SHA-1: 34c26bce34983fca692fa5dcd5b0864aff1a4918 SHA-256: dd1719db7a430c6d20c455546bbc5b43d18cdbfe7738074dab8483c9cc0cc193

126 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The PDF contains embedded JavaScript, including calls to eval() and String.fromCharCode, which are indicative of obfuscation and dynamic code execution. ClamAV detected this file as Pdf.Dropper.Agent-7312929-0, suggesting it acts as a dropper for other malware. The embedded JavaScript streams likely download and execute a second-stage payload, a common technique for malware distribution.

Heuristics 6

ClamAV: Pdf.Dropper.Agent-7312929-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Dropper.Agent-7312929-0
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.
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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj111611_000.js` `940a9574aea3f4224e90472ffc5f2c7d7c3120ffb99c80eddf0ffcc218734df7`	pdf-javascript-stream	PDF /JS object 111611 at offset 0x197	258 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).
`javascript_obj111612_001.js` `2d841892fa425b429d7c6bb5763ab1380d97eb6a0304af781324173c45694611`	pdf-javascript-stream	PDF /JS object 111612 at offset 0x268	3262 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).

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