PDF malware analysis — malicious · b1166cb19d020fd6

MALICIOUS

PDF

5.0 KB Created: 2011-06-13 14:12:02 Authoring application: B6at

MD5: 9250de3b41e039b71876e13b3fd118c6 SHA-1: 318050d6157df391548f368356fef616ccc10937 SHA-256: b1166cb19d020fd6dfb68349fb3c0bf6128f6cd3233553f19c5a6911761ac1f5

140 Risk Score

Malware Insights

The PDF file contains an embedded JavaScript payload that exploits the CVE-2010-0188 vulnerability in Adobe Reader. The script is obfuscated, but the exploit targeting is clear. The embedded artifact 'stream_002_off00000319.js' is the likely second-stage payload. The file's metadata indicates it was authored by 'B6at', which is not a commonly associated tool, suggesting a custom or less-known exploit delivery mechanism.

Heuristics 7

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
PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED

The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PDFSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
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_002_off00000319.js` `56e221e976ee565ae59369420f97b804fb36cf9145e9046303e59c1ffc64006b`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x319	52153 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).

Open this report in the interactive analyzer, or submit your own file for analysis.