Malicious PDF — malware analysis report

Static analysis result for SHA-256 c043035f59284fa5…

MALICIOUS

PDF

4.4 KB
MD5: fa2d4fb556c16169b1e5c468042cd8dd SHA-1: 3061bd0d733e70706c4025d5a0f2133cf3dabb9d SHA-256: c043035f59284fa551ea01e9c6e257755ccc514065130e29f4cf08e3d64f1018
98 Risk Score

Malware Insights

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

The PDF file contains an embedded XFA form and triggers the CVE-2010-0188 exploit, indicating it is designed to execute arbitrary code when opened in a vulnerable version of Adobe Reader. The exploit is delivered via an XFA image payload within a decompressed PDF stream. No document body text was available for analysis, but the exploit itself is sufficient to classify the attack pattern.

Heuristics 5

  • 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.
  • ASCIIHexDecode filter (with exploit indicators) medium PDF_FILTER_HEX
    Hex-encoding filter present alongside exploit delivery indicators — often used to hide payload or shellcode bytes
  • 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.

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_000_off00000207.bin
9f79bea6f2386f690345252b0dd067b8fad05e44f129332cf84f7a92c4353bef
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x207 13469 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s).