Malicious PDF — malware analysis report

Static analysis result for SHA-256 257deb1dedaa99c0…

MALICIOUS

PDF

2.6 KB
MD5: 16818fbeeec4158a2e664e0b0ac5a049 SHA-1: 53d40490afaf66735f7cf842a95e00d14a12ac3c SHA-256: 257deb1dedaa99c072e88ebb1e3735b5ea4ba87e8e3de2737a3a9e3cacce8207
138 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1566.001 Spearphishing Attachment

The PDF file contains an embedded object and triggers a critical heuristic for CVE-2010-0188, indicating it exploits a vulnerability in Adobe Reader's handling of XFA forms and TIFF images. ClamAV also detected it as malware. The embedded file is likely the delivered 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
70b98c16aa74d7d4037641b3ff9e3db2724d22afefd641f85a23e593a63475a6
pdf-embedded-file PDF EmbeddedFile object 1 at offset 0x5D 13415 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s).