PDF malware analysis — malicious · 9d42a783c7a1bebc

MALICIOUS

PDF

12.2 KB

MD5: a1e563c6f391c7fb3353b2e8897b018f SHA-1: 5734e990c249637a537b7882a12f39f1856491f7 SHA-256: 9d42a783c7a1bebc789f49cfac2bd1dcd198664258ea47bc022facd2c34c0d28

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. Specifically, the CVE_2007_5659 heuristic indicates the exploitation of a vulnerability related to `Collab.collectEmailInfo`. The embedded JavaScript, found in `legacy_pdfkit_stage_000.js` and `legacy_pdfkit_stage_001.js`, is likely responsible for downloading and executing a second-stage payload. ClamAV detection as `Pdf.Dropper.Agent-7286755-0` further confirms its malicious nature.

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-7286755-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Dropper.Agent-7286755-0
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` `16cf754275fa37ca93e8e482ea407e838749782923595bac9f4cb8f2afeb6405`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F0	12003 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`legacy_pdfkit_stage_001.js` `fe783aa9e86f925b3fa87db7b92a4e4153f01e74f565ef2226bfe1fe2e2f463b`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F0	4936 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.