PDF malware analysis — malicious · f4cc839e056a94b5

MALICIOUS

PDF

8.5 KB

MD5: ce72a18f0cb0a159a4bcca011073e1b1 SHA-1: 15789215bede54e1d6d5c3320da516e6be37910a SHA-256: f4cc839e056a94b57a875d11b67f9035133056a0de34543f1c695706c4203fb3

240 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File Execution: Malicious File Execution T1059.001 Command and Scripting Interpreter: PowerShell

This PDF file contains embedded JavaScript that utilizes the `eval()` function, a common technique for obfuscating malicious code. Critical heuristics indicate exploitation of CVE-2009-0927 (Collab.getIcon) and CVE-2007-5659 (Collab.collectEmailInfo), which are known vulnerabilities in Adobe Reader. The embedded JavaScript is likely responsible for downloading and executing a secondary payload, as suggested by the ClamAV detection of 'Pdf.Exploit.Agent-2293'.

Heuristics 8

Collab.getIcon — CVE-2009-0927 critical CVE exact CVE_2009_0927

PDF JavaScript calls Collab.getIcon — CVE-2009-0927 is a stack buffer overflow in Adobe Reader triggered by Collab.getIcon() with a crafted argument. Allows arbitrary code execution. (matched in decompressed stream)
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. (matched in decompressed stream)
ClamAV: Pdf.Exploit.Agent-2293 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-2293
eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution
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.
PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED

The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PSSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
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 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0116_000.js` `1350522e50f70017de7bb3fb4e4ce7c4a91c80e8fdd504c3e805a1abaacb4e9c`	pdf-javascript-stream	PDF /JS object 116 at offset 0x497	6420 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).

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