PDF malware analysis — malicious · de60d1ce8a50b0a4

MALICIOUS

PDF

5.3 KB

MD5: 475318c4c4a5175254bf675c9ae551fc SHA-1: 6a00d2eac2f16523359ec3cef94d06a63c325b59 SHA-256: de60d1ce8a50b0a41332cd741129d7cf187672243cc73f41f951afa94393c006

66 Risk Score

Malware Insights

MITRE ATT&CK

T1027 Obfuscated Files or Information

The PDF file contains embedded JavaScript, which is obfuscated and uses eval() and String.fromCharCode. This script is likely responsible for downloading and executing a second-stage payload. The presence of these indicators suggests a malicious document designed for payload delivery.

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.
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_obj0013_001.js` `1ec583b7257d1272c117e46336bedfa0edc62bbfe9b6e5610e05a4d50993f610`	pdf-javascript-stream	PDF /JS object 13 at offset 0x368	9318 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 7 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).

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