Malicious PDF — malware analysis report

Static analysis result for SHA-256 4c12490302cba1cf…

MALICIOUS

PDF

62.1 KB Created: 2011-07-11 12:17:02 Authoring application: J2Pe
MD5: dd230390d28b4a7376b0a833900caf50 SHA-1: 47455d86d5f2b4ffb78cc9255d4de8203b7c43c2 SHA-256: 4c12490302cba1cf4e537589cea49b4c8768522a2ca1a03b4e086d4f55cf1ca7
142 Risk Score

Malware Insights

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

The PDF file exploits CVE-2010-0188, a known vulnerability in Adobe Reader related to LibTIFF XFA forms. It contains embedded JavaScript that is likely intended to download and execute a second-stage payload. The presence of XFA forms and embedded scripts strongly suggests a malicious intent, although the specific family cannot be determined from the available evidence.

Heuristics 8

  • 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.
  • XFA form contains executable script high CVE related PDF_XFA_SCRIPT
    PDF embeds an XFA form whose dataset contains a <script> or <xfa:script> block — XFA scripting has been the exploit primitive for several Adobe Reader RCEs (CVE-2010-0188 family, CVE-2018-4901, and others). Plain XFA without scripts is far less risky.
  • 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.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://ns.adobe.com
    • http://�wt.xfa.org/schema/xfa-data/1.0/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off0000031a.js
090f0567700c366712fd6df219a1d8afd5f1123c8b72db9b6981d4052e6bf4b2
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x31A 61786 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s).
embedded_pdf_script_00000628.bin
9222a1dc69f878a4c99cfeed6bfa06002ab8936efa27bca8468f296d5c7eb6ef
pdf-embedded-script PDF raw stream script payload at offset 0x628 62173 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 411 long base64-like blob(s).