Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa3c8e77b88f3114…

MALICIOUS

PDF

2.6 KB
MD5: 5aa944b155a3dc79ada8910bd041d29c SHA-1: 75b70541fdc96c74033ef83f63a7d6614a344ef3 SHA-256: fa3c8e77b88f311487fbee886db033e22091615693b02d8f97acc900769f9910
138 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.001 Malicious Link: Malicious Link T1204.002 Malicious Link: Malicious File

The PDF file contains an embedded object and triggers a critical heuristic for CVE-2010-0188, indicating it exploits a vulnerability in Adobe Reader related to LibTIFF XFA images. This exploit is designed to deliver a malicious payload, as confirmed by ClamAV detection as Pdf.Exploit.Dropped-90. The embedded file is likely the second-stage malware.

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
da82f3be23c10c13021eeb3747fc4a2129d542339b70655b8307969da1352b6f
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).