Malicious PDF — malware analysis report

Static analysis result for SHA-256 c9e7e19f31b430e4…

MALICIOUS

PDF

379.6 KB
MD5: 3d43746e899868fa0620d9d1056ef5ec SHA-1: de23ebcef7cc611d293d36de5192dce936aea0ff SHA-256: c9e7e19f31b430e41f47d744dd9bd6f08cd6f75e23a38adea8c716361c0cd7fc
80 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.001 PowerShell

The sample is a PDF file that triggers the CVE-2010-0188 vulnerability in Adobe Reader. This exploit is known to be used for arbitrary code execution. An embedded file was also extracted, suggesting it may contain a secondary payload. The exact nature of the payload could not be determined due to the lack of script content or document body text.

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.
  • 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
07b8ab02cff01d024bbf93e777fbb2eb97800f3f8f9e0099f9a195193e04bb92
pdf-embedded-file PDF EmbeddedFile object 1 at offset 0x51 13430 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s).