Malicious PDF — malware analysis report

Static analysis result for SHA-256 df771799068cdfa9…

MALICIOUS

PDF

2.6 KB
MD5: 7591b65d8de0d8d08cc73bb0c6cdf4f8 SHA-1: 7512cb578836ea98f5e632281d53096aa51d5db1 SHA-256: df771799068cdfa925a3a164ff4d31c74ea5a283e8ab9c958de229c259f64844
138 Risk Score

Malware Insights

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

The PDF file contains an embedded malicious object, identified as a critical exploit for CVE-2010-0188 in Adobe Reader. This exploit targets XFA forms and is designed to execute arbitrary code. The embedded artifact, 'embedded_file_obj0001.bin', is likely the second-stage payload delivered by the exploit. The ClamAV detection 'Pdf.Exploit.Dropped-90' further confirms the malicious nature of the file.

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
fa398335f1d98282da007bb22241d0ee72350123c43fa3f4fa1661078b7dbb67
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).