PDF malware analysis — malicious · 4267791ac56c19a5

MALICIOUS

PDF

4.4 KB

MD5: 5530207794f7b1bbaa3ce558b8dfe403 SHA-1: 938c3a810fcaa266bbe65f34c8d9013a49354076 SHA-256: 4267791ac56c19a56aa16fd4fd9b1b7b633aa0ba251573a232cfff56aeea19c7

98 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1059.001 PowerShell

The PDF file contains an XFA form and triggers the critical CVE-2010-0188 heuristic, indicating an exploit targeting Adobe Reader's LibTIFF component. The exploit is embedded inline within the PDF's decompressed stream. The presence of ASCIIHexDecode and ASCII85Decode filters further suggests obfuscation commonly used in exploit delivery. No document body text was available for analysis, but the exploit itself is the primary indicator of malicious intent.

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` `d2c43fd6b246a13b809a45949b6729de2d4b287682c3b16db83b2d2dee33c1e0`	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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