Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b4fc0216a85429a…

MALICIOUS

PDF

2.6 KB
MD5: 5af433e60650e397925125835cc91dc0 SHA-1: 725cba6cf5a7b01c97e5fd2872adce42d5541c47 SHA-256: 2b4fc0216a85429afb1ee1949e4e16f2928d51e0bd2a2e4baa46e8d7d82d4863
138 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution T1566.002 Phishing: Spearphishing Attachment

The PDF file contains an embedded TIFF image that exploits CVE-2010-0188, a known vulnerability in Adobe Reader's handling of XFA forms. This exploit is designed to download and execute a secondary payload. The ClamAV detection 'Pdf.Exploit.Dropped-90' further confirms its malicious nature. The embedded artifact 'embedded_file_obj0001.bin' is likely the dropped 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
153ad06634a630c80efaced06220a274f85c46d946672715cf52ef2e7bebb7cf
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).