PDF malware analysis — malicious · e0b94371c82eb9ea

MALICIOUS

PDF

12.3 KB

MD5: 4b56383a66816a5e782781044e6557cf SHA-1: 929ebf350786f92c9d616411a2dd137a8529b7a4 SHA-256: e0b94371c82eb9ea25209823d5f6f9d5a56b8988255a4aa560c6f532000f42e4

138 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings including PDF_JAVASCRIPT and PDF_JS. The critical CVE_2007_5659 firing suggests exploitation of a known PDF vulnerability to execute this script. The script is likely designed to download and execute a second-stage payload, as suggested by the ClamAV detection of Pdf.Dropper.Agent-7314526-0 and the presence of deobfuscated JavaScript files. The file's SHA256 hash is included as a primary IOC.

Heuristics 5

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)
ClamAV: Pdf.Dropper.Agent-7314526-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Dropper.Agent-7314526-0
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` `b8083bc8df79604eb4b185181911fe7a9cd744555dc2e8f7f3709c7862f5d1aa`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F0	11885 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`legacy_pdfkit_stage_001.js` `19f2610481a018f061ada7197216343d40100e61b2663c9dc270bc3dd09f91a1`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F0	4928 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 5 eval/decoder/string-building token(s).

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