Malicious PDF — malware analysis report

Static analysis result for SHA-256 8cea705f9b3cc027…

MALICIOUS

PDF

493.0 KB
MD5: 2b07d60a76261437a9d7aa7c729b5849 SHA-1: 103927ba5a45c3467ee0ce911d434b4c0f1e96c3 SHA-256: 8cea705f9b3cc027ed2c747d44e3505313943c2916ae14006dd6fcd62b46b84f
80 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.001 PowerShell

The sample is a PDF file that contains an embedded XFA form which triggers the CVE-2010-0188 exploit. This vulnerability in Adobe Reader allows for arbitrary code execution. The embedded file 'embedded_file_obj0001.bin' is likely the secondary payload. The exploit is a critical finding, indicating a high likelihood of malicious intent.

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
033437e923484cbe1694b90c46aeb28868959e96dd15cca7a0961f361f4a20e2
pdf-embedded-file PDF EmbeddedFile object 1 at offset 0x51 13434 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s).