Malicious PDF — malware analysis report

Static analysis result for SHA-256 96a42fe14f3a09ea…

MALICIOUS

PDF

3.4 KB
MD5: 3fc9bfc11354c58577f3fff55fbb1b16 SHA-1: 0269892c6b09b191af5837f9bee42d033227476f SHA-256: 96a42fe14f3a09ea5d4a24813840f07593136b3fea6c2a8e59e610515284429b
170 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

This PDF file contains an embedded XFA form and triggers the CVE-2010-0188 exploit, which is known to target Adobe Reader. The exploit is designed to download and execute a secondary payload, as indicated by the 'Pdf.Dropper.Agent' ClamAV detection and the ML classifier's high confidence. No document body text or scripts were extracted, but the exploit itself is sufficient evidence of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • Adobe Reader LibTIFF XFA image exploit — CVE-2010-0188 critical CVE likely CVE_2010_0188
    PDF contains XFA image data with an inline crafted TIFF payload and shellcode/delivery markers. This is the data-bound variant of the CVE-2010-0188 Adobe Reader LibTIFF/XFA exploit shape.
  • ClamAV: Pdf.Dropper.Agent-7284573-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7284573-0
  • XFA form low PDF_XFA
    PDF uses XML Forms Architecture — can contain script logic
  • ASCII85Decode filter (with exploit indicators) low PDF_FILTER_85
    ASCII85 encoding filter present alongside exploit delivery indicators — uncommon outside of obfuscation
  • 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/xdp/
    • http://www.xfa.org/schema/xci/1.0/
    • http://www.xfa.org/schema/xfa-template/2.4/
    • http://www.xfa.org/schema/xfa-data/1.0/
    • http://ns.adobe.com/xtd/
    • http://www.xfa.org/schema/xfa-form/2.8/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_000_off000001e9.bin
de78dd2a78f69c373a86d8135702a7bb2121864877e5dd93a90b5d6fdc19c131		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x1E9 13469 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s).

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