Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ab73e731a713844…

MALICIOUS

PDF

2.6 KB
MD5: d885ae21c73030d71f9f8050cfe16dfd SHA-1: 2b842cc0fb7c2d56b0cfbe39dc8dcfec741ef099 SHA-256: 9ab73e731a713844030aa2d366267849690fa8a42611705bbc66dbd4ce8008a7
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 by the 'PDF_EMBEDDED' heuristic. Crucially, the 'CVE_2010_0188' heuristic indicates that the file exploits a known vulnerability in Adobe Reader related to XFA forms and TIFF image parsing. This exploit is designed to execute arbitrary code, likely leading to the download and execution of a secondary payload, as suggested by the 'ClamAV: Pdf.Exploit.Dropped-90' detection.

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
c6e508c4103368c69ffa6c985f6ad7ad79b9d18f0d2216d02cebf6d5dfbc401e
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).