Malicious PDF — malware analysis report

Static analysis result for SHA-256 84dbdadad5b49808…

MALICIOUS

PDF

4.4 KB
MD5: 785d32774225741f1379a49dc2a20201 SHA-1: 4b485fcd1c6a69a4d9932b98e98554f7596d5d88 SHA-256: 84dbdadad5b498083bef8f0d81ece50e0215819cb15f2b7b7981a5f7ab9fb771
98 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The PDF file contains an XFA form and triggers the critical CVE-2010-0188 heuristic, indicating an exploit targeting Adobe Reader's LibTIFF component. This exploit is designed to execute arbitrary code, likely to download and run a secondary payload. The presence of ASCIIHexDecode and ASCII85Decode filters further supports the exploitation attempt.

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
fce1ea84e684ab1c3a8f00ace716555defcf08e528ab7fb21bf2bcd70d4e96a5
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).