Malicious PDF — malware analysis report

Static analysis result for SHA-256 333178845155d9bd…

MALICIOUS

PDF

2.6 KB
MD5: 7b947a5fdd626543d7f2b41d29873333 SHA-1: 1e3ef6edd8cff7775823f83c41db2f905218f64e SHA-256: 333178845155d9bd744a29096916b731d2192ba855e03aa0206c2c17bee99b4f
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. Specifically, the 'CVE_2010_0188' heuristic indicates that the file exploits a vulnerability in Adobe Reader related to the LibTIFF XFA image processing. The 'CLAMAV_DETECTION' heuristic further confirms its malicious nature as 'Pdf.Exploit.Dropped-90'. The embedded file 'embedded_file_obj0001.bin' is likely the second-stage 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
5f7869d86f0efee85a0e224220cf4ed76fcde623fda22d2a8a3fbda67cf25570
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).