PDF malware analysis — malicious · 89788f2d81a8a5ce

MALICIOUS

PDF

4.4 KB

MD5: c6c37ad94cd9f0fa8cdfe3088a0b8026 SHA-1: 767b0c789e95f9a7940a7f9e01f93c8cef2790b8 SHA-256: 89788f2d81a8a5cec279ce8cb1b1670471e99d48f988aea2737e40aa3ee1118b

98 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1059.001 PowerShell

The PDF file contains a critical heuristic indicating the presence of the CVE-2010-0188 exploit, which targets Adobe Reader's LibTIFF component. This exploit is designed to achieve arbitrary code execution. The presence of XFA forms and ASCIIHexDecode/ASCII85Decode filters further supports the exploitation vector. The decompressed stream likely contains the shellcode for the exploit, which would typically be used to download and execute a second-stage payload.

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` `854be0d6ea124265d22542e8169ab2fbe57175a2085f971e9ca77350e8e9d2ef`	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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