PDF malware analysis — malicious · f657385a4af4c30f

MALICIOUS

PDF

4.4 KB

MD5: b90c7d522b81d36a2e12d18aac3c07a3 SHA-1: 503846a25fd8467209e1edfa3c88a6e3e7900eef SHA-256: f657385a4af4c30f4727a3f70d3e1f381d09c7a7bdea617aa710bec85bd4773c

98 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1059.001 PowerShell

The PDF file contains a critical heuristic indicating exploitation of CVE-2010-0188, a known vulnerability in Adobe Reader related to XFA forms and LibTIFF. This suggests the document is designed to deliver a malicious payload upon opening in an unpatched version of Adobe Reader. No specific malware family was identified, but the exploit's nature points towards a downloader or initial access mechanism.

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.
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
XFA form low PDF_XFA

PDF uses XML Forms Architecture — can contain script logic
ASCII85Decode filter (with exploit indicators) low PDF_FILTER_85

ASCII85 encoding filter present alongside exploit delivery indicators — uncommon outside of obfuscation
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
`stream_000_off000001f9.bin` `fa11243b0c2fa54f05a7e766192ec95a700bcaacd39ea5c8ff161c5e6df53b27`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x1F9	13469 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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