Malicious PDF — malware analysis report

Static analysis result for SHA-256 dac22f901c2210d8…

MALICIOUS

PDF

2.6 KB
MD5: f9b3ff9e34256414636f598e59e82234 SHA-1: 57f15b8186c17dbb4ae59bcd93f125c307dd4dbc SHA-256: dac22f901c2210d836bd36a4ae60c07f1d8813b317d11717d1da340c7b96893a
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 ClamAV as Pdf.Exploit.Dropped-90. Static analysis indicates the exploitation of CVE-2010-0188, a vulnerability in Adobe Reader related to XFA forms and LibTIFF. This suggests the document is designed to exploit this specific vulnerability upon opening to execute a secondary 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
fa398335f1d98282da007bb22241d0ee72350123c43fa3f4fa1661078b7dbb67
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).