PDF malware analysis — malicious · 2ab093fd9b6c5daa

MALICIOUS

PDF

12.5 KB

MD5: bd44c7f609eef92edabd5e536b091f85 SHA-1: c79d9050c81fe5074df4ea797186a1d302d19bf4 SHA-256: 2ab093fd9b6c5daadebb928acc5f85afce492a39833fd01f91ea8f9da1644502

138 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript, identified by the PDF_JAVASCRIPT and PDF_JS heuristics. The critical CVE-2007-5659 heuristic indicates the exploitation of a known PDF vulnerability using JavaScript to collect information and likely execute further code. The ClamAV detection as Pdf.Dropper.Agent-7243134-0 further supports its malicious nature. The extracted JavaScript files suggest a multi-stage dropper mechanism.

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-7243134-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Dropper.Agent-7243134-0
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` `13d3fa2b9fd7e8b085b640de3d3039b9e8ab1e9a85c47e3c857143732aff96e1`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F0	12145 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`legacy_pdfkit_stage_001.js` `222329b72593dfa0f9a1b72958d11de95cc0f0c0c962b2ddb2d1506481e69f4c`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F0	4997 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 5 eval/decoder/string-building token(s).

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