PDF malware analysis — malicious · e69080f492eb5e15

MALICIOUS

PDF

2.8 KB Created: 2008-08-06 01:42:27 Authoring application: Scribus 1.3.3.12 (via Scribus PDF Library 1.3.3.12)

MD5: 7162cdbd0c9b7844e89f69dd898e3b12 SHA-1: 5a6e18479bdc3a9854329281e8ba644c03f12c6b SHA-256: e69080f492eb5e15b9eb58a44a5fcb2fd4f3c2083eeb76c2a669ed731d7ae2ce

316 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File T1566.002 Spearphishing Attachment

This PDF file contains embedded JavaScript and is configured with an OpenAction trigger, indicating an attempt to automatically execute code upon opening. The presence of the CVE-2007-5659 heuristic firing, specifically related to Collab.collectEmailInfo, strongly suggests exploitation of a known PDF vulnerability. An extracted JavaScript file, 'javascript_obj0013_001.js', was also flagged as suspicious. The combination of these factors points to a malicious PDF designed to exploit vulnerabilities and likely download or execute further malicious content.

Heuristics 8

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-34662 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-34662
ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV

ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
OpenAction trigger high PDF_OPENACTION

PDF has an /OpenAction — code runs automatically when opened
unescape() call high PDF_UNESCAPE

unescape() found — often used to decode shellcode in PDF JS exploits (matched inside decoded stream)
Suspicious extracted artifact high 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.
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.

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0013_001.js` `ff21acc3148fcd91265868abcbfe17f2262e5aa84993d255a6f9562c39e6440c`	pdf-javascript-stream	PDF /JS object 13 at offset 0x36E	3289 bytes
Detection ClamAV: Pdf.Exploit.Agent-34662 Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).

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