Malicious PDF — malware analysis report

Static analysis result for SHA-256 b72519ef5ced082e…

MALICIOUS

PDF

2.6 KB
MD5: f513660c803b7e9bfc92262bf5c88c67 SHA-1: 1545c9ddaea3702f898380734a65b064ba8a9bcb SHA-256: b72519ef5ced082e2fe5ff02a37f8879425927cfc8607b1197a697cbc3a710f8
138 Risk Score

Malware Insights

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

The PDF file contains an embedded XFA form with a payload matching the CVE-2010-0188 exploit for Adobe Reader. This exploit is known to deliver a second-stage malicious file, as indicated by the 'Pdf.Exploit.Dropped-90' ClamAV detection and the presence of an embedded binary artifact. The attack pattern involves tricking a user into opening a malicious PDF that triggers the exploit.

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
011bde4b0a534c7f33182eb44ca2f07cc7aff0fa0366ff194f13deeb614ebb36
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).