Malicious PDF — malware analysis report

Static analysis result for SHA-256 af6bcde0a86fa88c…

MALICIOUS

PDF

2.6 KB
MD5: 631d1c4ba481776c067479e66791e47e SHA-1: ceffa62c30bd5d5051421290fc0c913b2072d2c5 SHA-256: af6bcde0a86fa88c066a59934f631266fd405b99543903b526a05ec47939c336
138 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1027 Obfuscated Files or Information

The PDF file contains an embedded object and triggers the CVE-2010-0188 exploit, indicating it is designed to deliver a secondary payload. ClamAV also identified it as Pdf.Exploit.Dropped-90. The embedded file, 'embedded_file_obj0001.bin', is likely the dropped payload. The document body appears to be malformed or heavily encoded, preventing a clear understanding of its lure, but the exploit and embedded file are strong indicators 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.
  • 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
a0a75ec251b2802e9f1c973756de135d43dd7871ac8385284a8c32f57ea71fd9
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).