Malicious PDF — malware analysis report

Static analysis result for SHA-256 4bf1643d517d75ea…

MALICIOUS

PDF

1.16 MB
MD5: 3581332fcc01def4fee09034a3366a5c SHA-1: a153cd26340aa91f818b3b97a00a660f89810be2 SHA-256: 4bf1643d517d75eaf3e15f22e5cd8cc8add659072e1fe4ab85fb9e5339b1dd55
78 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The PDF file contains an embedded XFA form that triggers the CVE-2010-0188 exploit. This vulnerability allows for arbitrary code execution when the PDF is opened in a vulnerable version of Adobe Reader. The embedded payload is likely designed to download and execute a second-stage malicious file.

Heuristics 4

  • 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.

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_file_obj0001.bin
4039e9c998334ff031d82f5ca110045c516b3c5ea8785535b9ad33d41166a47b		 pdf-embedded-file PDF EmbeddedFile object 1 at offset 0x4F 13560 bytes

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