PDF malware analysis — malicious · 8a1448d10b135e6c

MALICIOUS

PDF

3.1 KB Created: 2008-01-28 15:02:14 -05:00 Authoring application: iText 2.0.7 (by lowagie.com)

MD5: 1c130a41aa6866bc081cf096bbd08da3 SHA-1: 527fa725f33e121b8bbe9106d3097cae58b7346e SHA-256: 8a1448d10b135e6c219540316a4198568b52312bf150d2e0668764bdcc5155d1

238 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1059.001 PowerShell

The PDF file contains embedded JavaScript and triggers a critical heuristic for CVE-2007-5659, indicating it exploits a known vulnerability in Adobe Reader. The embedded JavaScript stream, identified as 'javascript_obj0001_000.js', is likely responsible for executing the malicious payload. ClamAV detections further confirm the malicious nature of the file and its extracted artifacts.

Heuristics 7

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-34571 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-34571
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.
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_obj0001_000.js` `16c3010510449d4f8441ee68af25c02f2db09b484f77b2208eded1990e1fe21b`	pdf-javascript-stream	PDF /JS object 1 at offset 0xF	4981 bytes
Detection ClamAV: Pdf.Exploit.Agent-34407 Obfuscation or payload: likely Carved artifact contains 20 eval/decoder/string-building token(s).

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