Malicious PDF — malware analysis report

Static analysis result for SHA-256 bf540319b2bac063…

MALICIOUS

PDF

5.0 KB Created: 2011-04-05 23:46:28 Authoring application: bub lob
MD5: 1730076d829790b60aa0a02ca0877318 SHA-1: 01503c195e62307dfc55bae582e34f2a9711eb67 SHA-256: bf540319b2bac063ffc94f17ddda4e238910bf306a8004d458606dcbc33ebd45
100 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1059.001 PowerShell

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 embedded JavaScript is likely responsible for downloading and executing a second-stage payload, although its exact function is obscured.

Heuristics 5

  • 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.
  • 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.

FilenameKindSourceSize
stream_001_off00000324.js
6a8cd2de3eb25de5a93542fb666ebf1f56afcbf5d273d7f035be6633b255dcac
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x324 48516 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s).