Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb554d77743971f7…

MALICIOUS

PDF

2.6 KB
MD5: f3b5c0e922afec2b99828301753f4807 SHA-1: f012819e4932d1b37b4261ee2d316a1479a3866f SHA-256: bb554d77743971f7df73c8c931cfe9c96339c93089b438ec097d93afff44c01e
138 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The sample is a PDF file that exploits CVE-2010-0188, a vulnerability in Adobe Reader related to XFA forms and TIFF image parsing. The critical heuristic firing indicates that the PDF contains an embedded malicious payload designed to be executed by exploiting this vulnerability. The file is detected by ClamAV as Pdf.Exploit.Dropped-90, further confirming its malicious nature.

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
7307af20bcc7c5a59c33e5f7084afb80dc69afbe49fbcfdaec337b5903c68874
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).