PDF malware analysis — malicious · ecf7cbde508b7a60

MALICIOUS

PDF

4.4 KB

MD5: 4ad5c3414f78bd4d1af9e0809676d5c1 SHA-1: 658a308ca7ad3cc941b072ac8565f541409f5886 SHA-256: ecf7cbde508b7a60fcd80100dac0b07ab5e31a5e312e79a99a87a6d5df122ed8

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 LibTIFF XFA image handling. This exploit is designed to achieve arbitrary code execution. The presence of XFA form elements and the use of ASCIIHexDecode and ASCII85Decode filters further support this attack vector. The decompressed stream contains a suspicious payload, suggesting the PDF is a dropper for further malicious activity.

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` `d60ca69875bf8655e05814120a3bf292e50a5624ab73a8be4611a139968b1626`	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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