PDF malware analysis — malicious · 4fe92ec1475bf993

MALICIOUS

PDF

17.7 KB Created: e1svrt Authoring application: Adsfgddfobe (via sfgasdfgsd)

MD5: 260790664f9ba5c1e01c20ddbfd9807c SHA-1: 961aa097bf404d0c321b2fef93059a0aa2dd8b19 SHA-256: 4fe92ec1475bf99374953ff88f3448919a8ecb96ec95b037e3e9d910a414233b

98 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1027 Obfuscated Files or Information

The PDF file contains embedded JavaScript streams, indicated by PDF_JAVASCRIPT and PDF_JS heuristics. High-confidence firings for PDF_EVAL and PDF_UNESCAPE suggest that the JavaScript is obfuscated and likely designed to execute arbitrary code. The presence of suspicious extracted JavaScript files further supports this. The primary function appears to be downloading and executing a second-stage payload, though the exact URL or execution method could not be fully reconstructed due to obfuscation.

Heuristics 5

eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution (matched inside decoded stream)
unescape() call high PDF_UNESCAPE

unescape() found — often used to decode shellcode in PDF JS exploits (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.
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_obj0015_000.js` `9d70141af3a822acccc264ef07edff74fb35057902ba021de6dd368c8575e640`	pdf-javascript-stream	PDF /JS object 15 at offset 0x14F	251 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s).
`javascript_obj0017_001.js` `daa1801abe55750e11d1cdb69e51bc88b91001d8cb049ffad0509bf029a46d8d`	pdf-javascript-stream	PDF /JS object 17 at offset 0x43A2	268 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).

Open this report in the interactive analyzer, or submit your own file for analysis.