Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ed870ac3af4e14e…

MALICIOUS

PDF

92.7 KB
MD5: 7bd07d60463cfbaf884240488557fc80 SHA-1: 00ebf114342767694869899b4278a89107f51961 SHA-256: 7ed870ac3af4e14e4c8e25dad71fa0c8efbc277c8dd10275ffaa47d51dbdad17
160 Risk Score

Malware Insights

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

The PDF file contains an embedded object and triggers critical heuristics for CVE-2010-0188, indicating an exploit targeting Adobe Reader's LibTIFF component. ClamAV also identified it as Pdf.Exploit.Dropped-90. The exploit likely leads to the execution of a dropped payload, although the specific nature of the payload is not detailed in the provided evidence.

Heuristics 7

  • 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
  • ASCIIHexDecode filter (with exploit indicators) medium PDF_FILTER_HEX
    Hex-encoding filter present alongside exploit delivery indicators — often used to hide payload or shellcode bytes
  • 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
  • PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED
    The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PSSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
  • 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
d4242bf77000797db01ad284f449ac527d84ccfd112ba3f39c3f8a78126822a9
pdf-embedded-file PDF EmbeddedFile object 1 at offset 0x5B 13414 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s).