PDF malware analysis — malicious · c70ce031681c97d5

MALICIOUS

PDF

12.8 KB

MD5: 36741852fbb9b8ea52339f9212026d55 SHA-1: 014f620545c8f45a22e4fc3862559cb42e2d140f SHA-256: c70ce031681c97d58102a9f6ab51477c09f92225416cc192b3cdfe95ecec470f

138 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript, identified by the CVE-2007-5659 heuristic which specifically targets the Collab.collectEmailInfo function. This function is known to be used in PDF exploits to execute arbitrary code. The file also triggered a ClamAV detection for 'Pdf.Exploit.Agent-36064' and extracted JavaScript files named 'legacy_pdfkit_stage_000.js' and 'legacy_pdfkit_stage_001.js', indicating a multi-stage exploit. The exact payload or final intent of the JavaScript could not be fully determined due to obfuscation, but the exploit chain is clear.

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.Exploit.Agent-36064 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36064
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` `a5c8f0f722df4dd9876a0087e1eee65bd3020c5995f94f6729f7e17f3f3677a0`	pdf-javascript-stream	PDF /JS object 7 at offset 0x19D	331 bytes
`legacy_pdfkit_stage_000.js` `cb9ed79e25b064af2dc29f7fc3fffa26ef9ba50326a9e8b74e0f1b68639eac19`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F2	11881 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`legacy_pdfkit_stage_001.js` `6b539d2781361c0112ab334178fee2eb803b6f87b481c34e5a584dc68fdfbab3`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F2	4911 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.