PDF malware analysis — malicious · e0e2366cf1f78a2b

MALICIOUS

PDF

7.0 KB

MD5: 425d15cf74f17174cb417ceff7dcc0eb SHA-1: ad95a8823a591bc46c497f4732e24e675dbd4af6 SHA-256: e0e2366cf1f78a2b73dc14fe7291edbaa4396a6af43cd3ceb0a9f68c2efc1e39

178 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains embedded JavaScript, which is triggered by the CVE-2007-5659 vulnerability related to the Collab.collectEmailInfo function. This JavaScript is obfuscated and likely intended to download and execute a second-stage payload. The heuristic firings strongly indicate exploitation of this specific CVE.

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` `284de43a1c563a7a4e1ed99ae0033511857bf277ccae9ced9b1b92ca1e88e2f5`	pdf-javascript-stream	PDF /JS object 6 at offset 0x195	5904 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 4 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).

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