Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb3276407c36a7ca…

MALICIOUS

PDF

2.6 KB
MD5: c21ba437b98e8dc7465733f111877231 SHA-1: e623495c6e132e15099b51c8d8cc36d8e4fa22fc SHA-256: eb3276407c36a7caa297c3916eb8b1a45b8e26e151ef42dd9fd2a2d1b6fe23d1
138 Risk Score

Malware Insights

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

The PDF file contains an embedded malicious object that exploits CVE-2010-0188, a known vulnerability in Adobe Reader related to XFA forms and TIFF image parsing. This exploit is designed to execute a secondary payload, as indicated by the ClamAV detection 'Pdf.Exploit.Dropped-90' and the presence of a suspicious embedded binary file. The attack pattern involves tricking a user into opening a specially crafted 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
6f414fb237be83aa57260ab41df76aa938a5fb1a0685ffe3466d6001a5dfd1a3
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).