Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240319-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240319-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/04/2024, 08:03

General

  • Target
    c91c93bfb4af19aff408262ead8044abb4710a74ed66ad3a4e99e6fa3d87c42e.exe
  • Size 53KB
  • Sample240404-jxt3msae34
  • SHA256 c91c93bfb4af19aff408262ead8044abb4710a74ed66ad3a4e99e6fa3d87c42e
  • MD5 SHA1 SHA512 SSDEEP
Score
7/10

Malware Config

Signatures

  • Drops startup file 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Enumerates connected drives 3 TTPs 21 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 4 IoCs
  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 62 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3468
      • C:\Users\Admin\AppData\Local\Temp\c91c93bfb4af19aff408262ead8044abb4710a74ed66ad3a4e99e6fa3d87c42e.exe
        "C:\Users\Admin\AppData\Local\Temp\c91c93bfb4af19aff408262ead8044abb4710a74ed66ad3a4e99e6fa3d87c42e.exe"
        2⤵
        • Drops file in Windows directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:4000
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\$$a7157.bat
          3⤵
            PID:824
          • C:\Windows\Logo1_.exe
            C:\Windows\Logo1_.exe
            3⤵
            • Drops startup file
            • Executes dropped EXE
            • Enumerates connected drives
            • Drops file in Program Files directory
            • Drops file in Windows directory
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of WriteProcessMemory
            PID:116
            • C:\Windows\SysWOW64\net.exe
              net stop "Kingsoft AntiVirus Service"
              4⤵
              • Suspicious use of WriteProcessMemory
              PID:4584
              • C:\Windows\SysWOW64\net1.exe
                C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
                5⤵
                  PID:1808
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3164 --field-trial-handle=2284,i,13100272738549420251,6151825632958897606,262144 --variations-seed-version /prefetch:8
          1⤵
            PID:5460

          Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

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                Downloads

                setup.exe

                • Path C:\Program Files\Google\Chrome\Application\106.0.5249.119\Installer\setup.exe
                • Size 4.3MB
                • SHA256 e9a52d64e52afd8f4ee8f2f63d90c4b106da95b2e0a0e2beebe60393264bef2c
                • MD5 SHA1 SHA512 SSDEEP

                $$a7157.bat

                • Path C:\Users\Admin\AppData\Local\Temp\$$a7157.bat
                • Size 722B
                • SHA256 f4e185043c57ba600c6b576f8ef26e9fc9eb226b1b5d60015b0d04bc2ba222e1
                • MD5 SHA1 SHA512

                c91c93bfb4af19aff408262ead8044abb4710a74ed66ad3a4e99e6fa3d87c42e.exe.exe

                • Path C:\Users\Admin\AppData\Local\Temp\c91c93bfb4af19aff408262ead8044abb4710a74ed66ad3a4e99e6fa3d87c42e.exe.exe
                • Size 21KB
                • SHA256 ba414e4c21cd7884d1f26bf15b95599a4f0e8f39ad02d551a52c49a42749954d
                • MD5 SHA1 SHA512 SSDEEP

                Logo1_.exe

                • Path C:\Windows\Logo1_.exe
                • Size 32KB
                • SHA256 73bc52350ede34cdbf4f39b1fbdf64db6b3aeeb453a0f10d6b14b5be4da98b29
                • MD5 SHA1 SHA512 SSDEEP

                _desktop.ini

                • Path F:\$RECYCLE.BIN\S-1-5-21-817259280-2658881748-983986378-1000\_desktop.ini
                • Size 8B
                • SHA256 2c4780d85c5b5a8e5649f017df0ea62961728eba75f44e3cd2d127028824a01e
                • MD5 SHA1 SHA512

                memory/116-8-0x0000000000400000-0x0000000000444000-memory.dmp

                memory/116-2272-0x0000000000400000-0x0000000000444000-memory.dmp

                memory/116-5719-0x0000000000400000-0x0000000000444000-memory.dmp

                memory/116-8352-0x0000000000400000-0x0000000000444000-memory.dmp

                memory/116-9056-0x0000000000400000-0x0000000000444000-memory.dmp

                memory/4000-0-0x0000000000400000-0x0000000000444000-memory.dmp

                memory/4000-10-0x0000000000400000-0x0000000000444000-memory.dmp