PDF malware analysis — malicious · b7b0bb475770e1df

MALICIOUS

PDF

4.4 KB

MD5: c96ececb01d337c9a8719ee443d46b93 SHA-1: 1c3377968b6bc85bbebca4eec31a9e70746cb713 SHA-256: b7b0bb475770e1df1299ba059496aae71ee1149ee75a181e076c4d69a9b55d02

98 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1566.002 Phishing: Spearphishing Attachment

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. The presence of ASCIIHexDecode and ASCII85Decode filters further supports the likelihood of obfuscated exploit code. The extracted artifact 'stream_000_off00000207.bin' is likely the payload. The attack pattern is consistent with a targeted exploit delivered via a malicious PDF attachment.

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` `85b08127d0893e60c45c34e86fe9a30e702356c8dc37e14a2daf12b8267ae036`	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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