Malicious PDF — malware analysis report

Static analysis result for SHA-256 8da47ec6a6c91f49…

MALICIOUS

PDF

5.1 KB Created: 2011-04-05 23:46:28 Authoring application: bub lob
MD5: 22d14461eba39353121686e8d1538238 SHA-1: 5f1e16fe051d47f8746dc96b3106ef537da9493c SHA-256: 8da47ec6a6c91f49b906c1a7aff41c4bfba6417a0410c378d7469a0fec8de774
100 Risk Score

Malware Insights

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

The PDF file contains an embedded JavaScript payload that is triggered by exploiting the CVE-2010-0188 vulnerability in Adobe Reader. The script is designed to download and execute a second-stage payload. The presence of the XFA form and embedded file further indicates malicious intent.

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
33a1ffdd721f1a59faeda5f1b1641bc54b5a78b54e25afd0cdce862993f91bcd
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x324 50788 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s).