Overview

overview

7

Static

static

3

2024-06-07...uk.exe

windows7-x64

7

2024-06-07...uk.exe

windows10-2004-x64

7

Analysis

  • max time kernel
    117s
  • max time network
    117s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    07/06/2024, 02:21

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General

  • Target
    2024-06-07_d9c82ff16ffac599e4503515398ff7c1_ryuk.exe
  • Size 5.0MB
  • Sample240607-cs2tcshb65
  • SHA256 b725e1440f6a186fa016b16a2640ff88b85adc5c77895d42f516b95ec72013fe
  • MD5 SHA1 SHA512 SSDEEP
Score
7/10
spywarestealer

Malware Config

Signatures

  • Loads dropped DLL 11 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spywarestealer
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-06-07_d9c82ff16ffac599e4503515398ff7c1_ryuk.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-07_d9c82ff16ffac599e4503515398ff7c1_ryuk.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2264
    • C:\Users\Admin\AppData\Local\Temp\2024-06-07_d9c82ff16ffac599e4503515398ff7c1_ryuk.exe
      "C:\Users\Admin\AppData\Local\Temp\2024-06-07_d9c82ff16ffac599e4503515398ff7c1_ryuk.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of AdjustPrivilegeToken
      PID:2552

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        _socket.pyd
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI22642\_socket.pyd
        • Size 74KB
        • SHA256 4ba5d0e236711bdcb29ce9c3138406f7321bd00587b6b362b4ace94379cf52d5
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        _ssl.pyd
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI22642\_ssl.pyd
        • Size 120KB
        • SHA256 45c8b99ba9e832cab85e9d45b5601b7a1d744652e7f756ec6a6091e1d8398dd4
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        base_library.zip
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI22642\base_library.zip
        • Size 766KB
        • SHA256 92fc847323df45ebf3b6c7d260f07c3407d3fce3c2d2284da224941780c03453
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        libcrypto-1_1-x64.dll
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI22642\libcrypto-1_1-x64.dll
        • Size 2.4MB
        • SHA256 2a57183839c3e9cc4618fb1994c40e47672a8b6daffaa76c5f89cf2542b02c2f
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        python37.dll
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI22642\python37.dll
        • Size 3.7MB
        • SHA256 17c29e6188b022f795092d72a1fb58630a7c723d70ac5bc3990b20cd2eb2a51f
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        token_grabber.exe.manifest
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI22642\token_grabber.exe.manifest
        • Size 1KB
        • SHA256 b551d9596af231f3d12ca99434410319d55045bc8b54333e4d55033246d086d8
        • MD5 SHA1 SHA512
        Submit Download

        unicodedata.pyd
        • Path C:\Users\Admin\AppData\Local\Temp\_MEI22642\unicodedata.pyd
        • Size 1.0MB
        • SHA256 71b13fd922190081d3aeec8628bd72858cc69ee553e16bf3da412f535108d0e4
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        VCRUNTIME140.dll
        • Path \Users\Admin\AppData\Local\Temp\_MEI22642\VCRUNTIME140.dll
        • Size 87KB
        • SHA256 bf5ff4603557c9959acec995653d052d9054ad4826df967974efd2f377c723d1
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        _bz2.pyd
        • Path \Users\Admin\AppData\Local\Temp\_MEI22642\_bz2.pyd
        • Size 87KB
        • SHA256 466d21407f5b589b20c464c51bfe2be420e5a586a7f394908448545f16b08b33
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        _hashlib.pyd
        • Path \Users\Admin\AppData\Local\Temp\_MEI22642\_hashlib.pyd
        • Size 38KB
        • SHA256 bdf4a536f783958357d2e0055debdc3cf7790ee28beb286452eec0354a346bdc
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        _lzma.pyd
        • Path \Users\Admin\AppData\Local\Temp\_MEI22642\_lzma.pyd
        • Size 251KB
        • SHA256 a4cba6d82369c57cb38a32d4dacb99225f58206d2dd9883f6fc0355d6ddaec3d
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        libssl-1_1-x64.dll
        • Path \Users\Admin\AppData\Local\Temp\_MEI22642\libssl-1_1-x64.dll
        • Size 517KB
        • SHA256 9d35d8dd9854a4d4205ae4eafe28c92f8d0e3ac7c494ac4a6a117f6e4b45170c
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        select.pyd
        • Path \Users\Admin\AppData\Local\Temp\_MEI22642\select.pyd
        • Size 26KB
        • SHA256 56d1a971762a1a56a73bdf64727e416ffa9395b8af4efcd218f5203d744e1268
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download