Malicious PDF — malware analysis report

Static analysis result for SHA-256 215c06eabbf92339…

MALICIOUS

PDF

39.1 KB
MD5: 1493c556df9968f6731aa17c29ca70c7 SHA-1: 45d0847234b56206ce253a10ed858ba338427d92 SHA-256: 215c06eabbf923394f9843d1638e51e1e21590192184ef32f63ef7fdac8e1e56
80 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The critical heuristic firing for CVE_2010_0188 indicates that this PDF document is designed to exploit a vulnerability in Adobe Reader. The exploit targets an XFA form and embeds a malicious payload within a TIFF image. The embedded file, 'embedded_file_obj0001.bin', is likely the second-stage payload. The attack pattern is therefore exploitation of a known client-side vulnerability.

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.
  • 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: PSSyntaxError. 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.

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_file_obj0001.bin
5cef019c1335cf413c3b764f8bf6d3d305a45c6872e36866b22ef0163fce9c50
pdf-embedded-file PDF EmbeddedFile object 1 at offset 0x51 13430 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s).