Malicious PDF — malware analysis report

Static analysis result for SHA-256 cfa908a87609a35f…

MALICIOUS

PDF

2.6 KB
MD5: 1fa70b60bd74206def04759e9b07819c SHA-1: c6f49ac22bd64b91b9cdf11c5f2ecb11ff3eee6d SHA-256: cfa908a87609a35f447ec735cbb452063aece93fa641f1dec96731fee4365c58
138 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The PDF file contains an embedded XFA form with a malicious LibTIFF payload, specifically targeting the CVE-2010-0188 vulnerability in Adobe Reader. This exploit is designed to execute arbitrary code, likely leading to the download and execution of a second-stage payload from the embedded artifact.

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.
  • ClamAV: Pdf.Exploit.Dropped-90 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Dropped-90
  • 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
  • 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
c22389df861e90f1d28d4419bf0efe6cfe6edff614a60a8f05a19036d4239769
pdf-embedded-file PDF EmbeddedFile object 1 at offset 0x5D 13473 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s).