PDF malware analysis — malicious · 526270ecb6add4f6

MALICIOUS

PDF

4.4 KB

MD5: 2f6c46a92157f4380d97ed9a0c4575d6 SHA-1: c72b769e05ed6111e115270dbed952b82a9b3159 SHA-256: 526270ecb6add4f68746c5e02da76ed21be184ba9691f93a4af49b54a821679c

98 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1027 Obfuscated Files or Information

The PDF file contains indicators of exploitation for CVE-2010-0188, a known vulnerability in Adobe Reader related to LibTIFF and XFA forms. The presence of XFA forms and the exploitation heuristic strongly suggest this is the primary attack vector. The file also uses ASCIIHexDecode and ASCII85Decode filters, indicating obfuscation techniques were employed to hide the malicious content within the PDF structure. No specific malware family could be identified from the available evidence.

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_off00000207.bin` `8db5986d1a7d56c74d0fa9e8ec014a437d3a9ce08b95b8fb110003bb6583bf9c`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x207	13469 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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