PDF malware analysis — malicious · 21fa043f00cda6f8

MALICIOUS

PDF

4.1 KB

MD5: ff6e5e1310bdb0867aa7ab4b4b78cac3 SHA-1: 5f3d8fbea395eec1883a04ff077b43c65092ed3d SHA-256: 21fa043f00cda6f8210a643c211d5f7e43ea1ad962f9205ba29795b5920c73e3

100 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1059.001 PowerShell

The PDF file contains an embedded exploit targeting CVE-2010-0188 in Adobe Reader's LibTIFF component. This vulnerability allows for arbitrary code execution when the document is opened. The presence of an embedded file and the use of ASCIIHexDecode filter further indicate malicious intent. The exact payload is not discernible from static analysis, but the exploit itself is the primary indicator of compromise.

Heuristics 6

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.
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: PSEOF. 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 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`embedded_file_obj0001.bin` `40089817ea3190eb2bb5143a394d5c4fac2b76dddefe11a49e09e0127a26e88b`	pdf-embedded-file	PDF EmbeddedFile object 1 at offset 0x6A	12327 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`embedded_file_obj0010.bin` `8af81ed8eb133b8dbc92f16ee731a72b4418c73f308df25baea192d921e616d2`	pdf-embedded-file	PDF EmbeddedFile object 10 at offset 0x8F8	256 bytes
`embedded_file_obj0011.bin` `d06e0dab2136dca0ea5aa4ef0d915b64d8dddc2d9c3940510edf387688ecb5c5`	pdf-embedded-file	PDF EmbeddedFile object 11 at offset 0xB56	779 bytes
`embedded_file_obj0012.bin` `422a5430698c54d7acba092e1350d18143964b54c5496415f1d8f31cbbcf0663`	pdf-embedded-file	PDF EmbeddedFile object 12 at offset 0xD63	332 bytes

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