PDF malware analysis — malicious · 76b3a8c4d4e0949a

MALICIOUS

PDF

754.5 KB

MD5: 96fee8db8979821cafb8e4bae6d0a85b SHA-1: af7d3066ab6ece1f682f1575ca5cb48d9c7888c6 SHA-256: 76b3a8c4d4e0949a2e80f4e444da4cf287ab76467ed89df2de3bc7578529663a

80 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1059.001 PowerShell

The PDF file contains an embedded TIFF image that exploits the CVE-2010-0188 vulnerability in Adobe Reader. This exploit allows for the execution of arbitrary code, which is a common method for delivering secondary payloads. The embedded file, 'embedded_file_obj0001.bin', is likely the payload. The XFA form and differential parse failure heuristics further indicate a malformed or intentionally obfuscated PDF designed for exploitation.

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.

Filename	Kind	Source	Size
`embedded_file_obj0001.bin` `d3b883c389a5e1d1cd757d85e14b0749c79f1fc8b1394e95a53964dd43290b00`	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).

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