Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc5dee16b0151bac…

MALICIOUS

PDF

2.6 KB
MD5: 344971b6e2f61f15f0767217a9795379 SHA-1: c4ce9be10d34ddb017f6183f1bc14cb1711a499a SHA-256: dc5dee16b0151bac1614afd2c9d4e627248f0e67b2a0eb87fe65a5daaed56848
138 Risk Score

Malware Insights

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

The sample is a PDF document that contains an embedded file and triggers the CVE-2010-0188 exploit. This exploit targets a vulnerability in Adobe Reader related to XFA forms and TIFF image parsing. The embedded file, named 'embedded_file_obj0001.bin', is likely the secondary payload. The exploit allows for arbitrary code execution, which is consistent with the typical behavior of such documents.

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
098bc50cba8f4059cbcd64a946527156cf42e74c1e607d4ff3aca32260924231
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).