PDF malware analysis — malicious · 418ae3ab96a8a13d

MALICIOUS

PDF

5.3 KB Created: 2011-04-05 23:46:28 Authoring application: bub lob

MD5: b9e2d3cf0bb6b5edfae0f6eeb184cf51 SHA-1: 83e32a62b348f442d8768fe5a9ceab2c178b91a1 SHA-256: 418ae3ab96a8a13d1978fc469d3304c593189f8c0ea091ab6aa596fd70e31533

138 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious Link T1204.001 Malicious Link: Malicious Link T1059.001 Command and Scripting Interpreter: PowerShell T1059 Command and Scripting Interpreter

The PDF file contains an embedded JavaScript payload that exploits CVE-2010-0188 in Adobe Reader. The heuristic firings indicate a critical vulnerability exploit and an embedded script payload. The script is likely responsible for downloading and executing a second-stage payload, although its exact functionality is obscured by obfuscation.

Heuristics 6

Adobe Reader LibTIFF XFA image exploit — CVE-2010-0188 critical CVE likely CVE_2010_0188

PDF contains the CVE-2010-0188 exploit template: XFA JavaScript heap-spray setup, a generated TIFF image payload, and assignment of that TIFF data to an XFA image field rawValue to trigger Adobe Reader's LibTIFF parser.
unescape() call high PDF_UNESCAPE

unescape() found — often used to decode shellcode in PDF JS exploits (matched inside decoded stream)
Embedded script payload in PDF stream medium PDF_EMBEDDED_SCRIPT_PAYLOAD

PDF stream bytes contain an HTML/XFA <script> tag without accompanying Windows shell-execution primitives — common in accessible XFA forms but worth surfacing for analyst review.
Embedded file low PDF_EMBEDDED

PDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
XFA form low PDF_XFA

PDF uses XML Forms Architecture — can contain script logic
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
`stream_001_off00000327.js` `cc28f697f201bfd726fcd4f05dd984e50a4d582522e15f7ff6eab73aa0eae6c8`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x327	49639 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).

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