PDF / .COM malware analysis — malicious · 94382cdea9932483

MALICIOUS

PDF / .COM

12.8 KB

MD5: ef59d7d62ac3857196be14d6fcea6aa4 SHA-1: ae8fb35b87b27183aeb2a2e091564ff53e42b079 SHA-256: 94382cdea99324833451d35b67fce071b5cdaaaa9afd68deac971d1a3d717bdc

78 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.001 Malicious Link

The PDF file contains embedded JavaScript, triggered by the 'Collab.collectEmailInfo' method, which is known to exploit CVE-2007-5659. The heuristic firings indicate that this JavaScript is used to launch a secondary payload. The extracted JavaScript files, 'legacy_pdfkit_stage_000.js' and 'legacy_pdfkit_stage_001.js', likely contain further obfuscated code responsible for downloading and executing additional malicious content, typical of a multi-stage attack.

Heuristics 4

Collab.collectEmailInfo — CVE-2007-5659 critical CVE exact CVE_2007_5659

PDF JavaScript calls Collab.collectEmailInfo — CVE-2007-5659 is a buffer overflow in Adobe Reader triggered by a long argument or heap-sprayed message field passed to Collab.collectEmailInfo(). Part of a series of Acrobat JS API exploits. (identified after JavaScript deobfuscation)
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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0007_000.js` `1847af0a099665b6ac45af66402e56ed64237a1b287618ee3d6643267fda6f35`	pdf-javascript-stream	PDF /JS object 7 at offset 0x19D	343 bytes
`legacy_pdfkit_stage_000.js` `e8abdd64a8fa06b3d1030d9253ad7685099d029655a073939cd6104112c3fe6d`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F0	12496 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`legacy_pdfkit_stage_001.js` `cf9ea1305ad8f6abba699ef99e19ca74231f7936116b389067a9cd4790cc3b6b`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F0	5144 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 5 eval/decoder/string-building token(s).

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