Malicious PDF — malware analysis report

Static analysis result for SHA-256 c65178d10fa9f44c…

MALICIOUS

PDF

2.6 KB
MD5: fec18b8fc0d67a53880f4e6ab7705d93 SHA-1: a2ac4c28edc9832dfe49f7cfb4d54566bc1f15f9 SHA-256: c65178d10fa9f44c015ef118029c84c95ea07af4ed73a41e62b17ca142efb9f2
138 Risk Score

Malware Insights

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

The PDF file contains an embedded object that triggers the CVE-2010-0188 exploit, targeting a vulnerability in Adobe Reader's handling of TIFF images within XFA forms. This exploit is designed to download and execute a secondary payload, as indicated by the ClamAV detection name 'Pdf.Exploit.Dropped-90'. The embedded file 'embedded_file_obj0001.bin' is likely this payload.

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
b583ec257013ea39596eec229db7e59f4d2259df95262b9b555c1bcc39fe4771
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).