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Analysis

  • max time kernel
    149s
  • max time network
    137s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/10/2024, 03:10

General

  • Target

    c20d58731ea9f8d62c0e7d5c47810d795e1342aa334d97ac0e9742218e29bc9e.exe

  • Size

    5.7MB

  • MD5

    40f7b3ec38608ed7c4c95b51991d9d51

  • SHA1

    d3065aa488142c6d88908507a30ccd9f2de2abb0

  • SHA256

    c20d58731ea9f8d62c0e7d5c47810d795e1342aa334d97ac0e9742218e29bc9e

  • SHA512

    62ba4b506e5dca8026b22fb9c48aea154994ce65bb6b027a1c1389404ac13ad05e65af3b6bbfe4daa463680a0571f1ee530b9256073152aa301f75c61ec8ca75

  • SSDEEP

    49152:Hd+Pv94AEsKU8ggw1g+1CART5eBiyKS3EI3wybn20DCYIHvc8ixuZm9+fWsw6dTP:HdAKUgTH2M2m9UMpu1QfLczqssnKSk

Malware Config

Signatures

  • Drops file in Drivers directory 2 IoCs
  • Drops startup file 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Reads user/profile data of web browsers 3 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
  • System Location Discovery: System Language Discovery 1 TTPs 9 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3340
      • C:\Users\Admin\AppData\Local\Temp\c20d58731ea9f8d62c0e7d5c47810d795e1342aa334d97ac0e9742218e29bc9e.exe
        "C:\Users\Admin\AppData\Local\Temp\c20d58731ea9f8d62c0e7d5c47810d795e1342aa334d97ac0e9742218e29bc9e.exe"
        2⤵
        • Drops file in Drivers directory
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:4316
        • C:\Windows\SysWOW64\net.exe
          net stop "Kingsoft AntiVirus Service"
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:4040
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
            4⤵
            • System Location Discovery: System Language Discovery
            PID:1816
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\$$a783D.bat
          3⤵
          • System Location Discovery: System Language Discovery
          PID:316
          • C:\Users\Admin\AppData\Local\Temp\c20d58731ea9f8d62c0e7d5c47810d795e1342aa334d97ac0e9742218e29bc9e.exe
            "C:\Users\Admin\AppData\Local\Temp\c20d58731ea9f8d62c0e7d5c47810d795e1342aa334d97ac0e9742218e29bc9e.exe"
            4⤵
            • Executes dropped EXE
            PID:3032
        • C:\Windows\Logo1_.exe
          C:\Windows\Logo1_.exe
          3⤵
          • Drops file in Drivers directory
          • Drops startup file
          • Executes dropped EXE
          • Enumerates connected drives
          • Drops file in Program Files directory
          • Drops file in Windows directory
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:2644
          • C:\Windows\SysWOW64\net.exe
            net stop "Kingsoft AntiVirus Service"
            4⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:4180
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
              5⤵
              • System Location Discovery: System Language Discovery
              PID:3264
          • C:\Windows\SysWOW64\net.exe
            net stop "Kingsoft AntiVirus Service"
            4⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:2428
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
              5⤵
              • System Location Discovery: System Language Discovery
              PID:4672

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Program Files\StopClose.exe

      Filesize

      369KB

      MD5

      8f3121f45172d1d4f635eaa3c3e1145c

      SHA1

      2fedc1c587317eb8cb83eacc8c30e3bdb50284b4

      SHA256

      fb01af3a5bf1ef3e4a8363dac5dfbb57cd8bf58567c315ef6bc9d9ed71dc699b

      SHA512

      38eb092e6d07bd5bb33867b36c823c509783f1333519632dce8636bea240691c069b31be2dec1a4976c311586829d34e1b005193bccd7e4d6092c298341154a3

    • C:\ProgramData\Package Cache\{63880b41-04fc-4f9b-92c4-4455c255eb8c}\windowsdesktop-runtime-8.0.2-win-x64.exe

      Filesize

      644KB

      MD5

      74f614352141ac4f78c3e59955ed2258

      SHA1

      179465d798ce029d20b16601530037ca9d87563f

      SHA256

      e33cff13b2b5307aaa06fc8f6d15ebe31eeb5ac6ad8d12b4b5c877eb34cca70c

      SHA512

      af736346b2a298b653dccc43a44d852001584bc22c5e00cb959246a0544044587e27ae3af6c253bf68b3dbe24a0badbe0bf55784f704d8e2f703afaed49ae6ae

    • C:\Users\Admin\AppData\Local\Temp\$$a783D.bat

      Filesize

      722B

      MD5

      6ad8998563c57b7749da1b8a1a11778b

      SHA1

      1355b329dbeb8ec322424fb4846c19032a251963

      SHA256

      9e198de29da0d8eac7dd19aa9b9e43ae92148b3375fce234566baf7fb1f67f85

      SHA512

      f76869eb8758ed199f48dc5ba3773bc5676e47a5bf805707688735668661bff49ce3d4c7f5dce48995559a43935ee91c1fd72705a58bfb097ce1c4b48400253a

    • C:\Users\Admin\AppData\Local\Temp\c20d58731ea9f8d62c0e7d5c47810d795e1342aa334d97ac0e9742218e29bc9e.exe.exe

      Filesize

      5.7MB

      MD5

      ba18e99b3e17adb5b029eaebc457dd89

      SHA1

      ec0458f3c00d35b323f08d4e1cc2e72899429c38

      SHA256

      f5ee36de8edf9be2ac2752b219cfdcb7ca1677071b8e116cb876306e9f1b6628

      SHA512

      1f41929e6f5b555b60c411c7810cbf14e3af26100df5ac4533ec3739a278c1b925687284660efb4868e3741305098e2737836229efc9fe46c97a6057c10e677c

    • C:\Windows\Logo1_.exe

      Filesize

      33KB

      MD5

      228292b85e0720fbeee49799c069d347

      SHA1

      a987cdff2b93fa83d2b760ba1c92296494292a8e

      SHA256

      0c30eeac64ca154562874960504b7ec78c6548d25b44f218f36999de9550ac8b

      SHA512

      cb1563d487bd1bb8b1dd1dc1d9ad192d91b4a8c9b2970f5b5afda8b8c33b5dedb4a30f143f236a6379fe49f2a421e0644de9d957068f531da0afe651376491ec

    • C:\Windows\system32\drivers\etc\hosts

      Filesize

      842B

      MD5

      6f4adf207ef402d9ef40c6aa52ffd245

      SHA1

      4b05b495619c643f02e278dede8f5b1392555a57

      SHA256

      d9704dab05e988be3e5e7b7c020bb9814906d11bb9c31ad80d4ed1316f6bc94e

      SHA512

      a6306bd200a26ea78192ae5b00cc49cfab3fba025fe7233709a4e62db0f9ed60030dce22b34afe57aad86a098c9a8c44e080cedc43227cb87ef4690baec35b47

    • F:\$RECYCLE.BIN\S-1-5-21-355097885-2402257403-2971294179-1000\_desktop.ini

      Filesize

      9B

      MD5

      9d7f3edb5e2cdb73e4fc8851e6ea812e

      SHA1

      080a9d7c6e3e34eeec65587e5727dc360fa82a1a

      SHA256

      cd2cd126bb370ff3cfc54d3031ca8d9639ca1c8e74a496cef6ed80723fa909b6

      SHA512

      07aa99922cb51be03779a4fe934dbed547ba23a19b9cfe05859dd87da95b1e54bf6bb7924bce3bcc2f8a29290d4c4703996f1e0d7837b233fd7da1374868632e

    • memory/2644-20-0x0000000000400000-0x000000000043E000-memory.dmp

      Filesize

      248KB

    • memory/2644-9-0x0000000000400000-0x000000000043E000-memory.dmp

      Filesize

      248KB

    • memory/2644-3547-0x0000000000400000-0x000000000043E000-memory.dmp

      Filesize

      248KB

    • memory/2644-8714-0x0000000000400000-0x000000000043E000-memory.dmp

      Filesize

      248KB

    • memory/4316-12-0x0000000000400000-0x000000000043E000-memory.dmp

      Filesize

      248KB

    • memory/4316-0-0x0000000000400000-0x000000000043E000-memory.dmp

      Filesize

      248KB