PDF malware analysis — malicious · be69ecbec21243b3

MALICIOUS

PDF

6.0 KB

MD5: 9fac211a21cd98e1dd54393cd236ca96 SHA-1: b96e8f7d76e276f9d8524a737823d2b608bb9b72 SHA-256: be69ecbec21243b347f41cd7def4c8358bfd078fca52b333d33853b6a4b61720

178 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript which is obfuscated and utilizes the unescape function. The critical heuristic firing for CVE-2007-5659 (Collab.collectEmailInfo) indicates that the document is designed to exploit this vulnerability, likely to gather information from the user. The presence of JavaScript and the specific exploit targeted suggest a malicious intent to compromise the user's system or data.

Heuristics 6

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: Heuristics.PDF.ObfuscatedNameObject critical CLAMAV_DETECTION

ClamAV detected this file as malware: Heuristics.PDF.ObfuscatedNameObject
unescape() call high PDF_UNESCAPE

unescape() found — often used to decode shellcode in PDF JS exploits (matched inside decoded stream)
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 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0006_000.js` `f58e18c26b51a5e120ad9977932959167a699898bd74beab08801a561e774442`	pdf-javascript-stream	PDF /JS object 6 at offset 0x189	4942 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 4 eval/decoder/string-building token(s).

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