PDF malware analysis — malicious · 95c735dc0f6c4a11

MALICIOUS

PDF

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

MD5: 2b80c428fad15a8a32dac9567e905040 SHA-1: 90ccaf95ab6fac1aee8e69f263f1ad8521db6a90 SHA-256: 95c735dc0f6c4a119d0242983cef406e2eca890f241184a2f36db62e88858b93

98 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1027 Obfuscated Files or Information

The PDF file contains embedded JavaScript streams that utilize eval() and unescape() functions, indicating obfuscation. The heuristics suggest that this JavaScript is designed to download and execute a secondary payload. While the exact URL or execution method is not directly extractable due to obfuscation, the presence of these techniques strongly points to a malicious downloader. No specific family could be identified.

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` `eb38f21f9bedfa692973d5040fa72403c33e1b7416e5315eba9178a06cc6f506`	pdf-javascript-stream	PDF /JS object 17 at offset 0x2DEA	269 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).

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