Analysis

  • max time kernel
    150s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    28-04-2024 18:14

General

  • Target

    77feaa085f17f6fe07e7570d2727e4fd0fc781694b36edb29ba2f9338f021c90.exe

  • Size

    163KB

  • MD5

    08f68c2d5cdee9e5579b9653e1f4eb15

  • SHA1

    ca9459ec960465059e1044d717413562ee3baed7

  • SHA256

    77feaa085f17f6fe07e7570d2727e4fd0fc781694b36edb29ba2f9338f021c90

  • SHA512

    d6fd136efb636a40fea21af9d4261243da343dc7f660f563347f5d0df82607b30d761e68cf239b5791d3c0cae35717d7d84db4269c9bc892342a24acf7121723

  • SSDEEP

    3072:/3e+a+3dN5kQekqnwLD9m0WjfuRRfEdj4E3f90bC:m+aMGQek9if1Vv+W

Score
7/10

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 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 43 IoCs
  • Suspicious use of WriteProcessMemory 38 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:1232
      • C:\Users\Admin\AppData\Local\Temp\77feaa085f17f6fe07e7570d2727e4fd0fc781694b36edb29ba2f9338f021c90.exe
        "C:\Users\Admin\AppData\Local\Temp\77feaa085f17f6fe07e7570d2727e4fd0fc781694b36edb29ba2f9338f021c90.exe"
        2⤵
        • Drops file in Windows directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:2192
        • C:\Windows\SysWOW64\net.exe
          net stop "Kingsoft AntiVirus Service"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:2184
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
            4⤵
              PID:2160
          • C:\Windows\SysWOW64\cmd.exe
            cmd /c C:\Users\Admin\AppData\Local\Temp\$$a2F3B.bat
            3⤵
            • Deletes itself
            • Loads dropped DLL
            • Suspicious use of WriteProcessMemory
            PID:2112
            • C:\Users\Admin\AppData\Local\Temp\77feaa085f17f6fe07e7570d2727e4fd0fc781694b36edb29ba2f9338f021c90.exe
              "C:\Users\Admin\AppData\Local\Temp\77feaa085f17f6fe07e7570d2727e4fd0fc781694b36edb29ba2f9338f021c90.exe"
              4⤵
              • Executes dropped EXE
              PID:3068
          • C:\Windows\Logo1_.exe
            C:\Windows\Logo1_.exe
            3⤵
            • 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:2504
            • C:\Windows\SysWOW64\net.exe
              net stop "Kingsoft AntiVirus Service"
              4⤵
              • Suspicious use of WriteProcessMemory
              PID:2524
              • C:\Windows\SysWOW64\net1.exe
                C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
                5⤵
                  PID:2696
              • C:\Windows\SysWOW64\net.exe
                net stop "Kingsoft AntiVirus Service"
                4⤵
                • Suspicious use of WriteProcessMemory
                PID:2440
                • C:\Windows\SysWOW64\net1.exe
                  C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
                  5⤵
                    PID:2444

          Network

          MITRE ATT&CK Matrix ATT&CK v13

          Credential Access

          Unsecured Credentials

          1
          T1552

          Credentials In Files

          1
          T1552.001

          Discovery

          Query Registry

          1
          T1012

          Peripheral Device Discovery

          1
          T1120

          System Information Discovery

          1
          T1082

          Collection

          Data from Local System

          1
          T1005

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\ProgramData\Package Cache\{ca67548a-5ebe-413a-b50c-4b9ceb6d66c6}\vcredist_x64.exe
            Filesize

            478KB

            MD5

            3e2d3392a9d3ae3ed27661f81e853478

            SHA1

            fa8c023a3bff75e89ed39f5d4bfb5693d818ca8b

            SHA256

            09da8a31b7f420b9e4ed6d02e698bcc12a4f3efa46a53d1492a241a5784d44a8

            SHA512

            27652a29d728b92995b8ce46b150cd14baf5b65789591085ef3fa959dbc99efaa071b7a014ccaabeb6e84cdea642769dc98a7a1684afcda9be82dbb0b8d3fa17

          • C:\Users\Admin\AppData\Local\Temp\$$a2F3B.bat
            Filesize

            722B

            MD5

            0b26d216ecc3a8aca97e47134336d117

            SHA1

            cd8757c8851d31ec60c674e4a7ee24f1d38570a0

            SHA256

            38f56c1d450d061b5ec07c458263c422323a40553ff35e0db74cc315e0fe5481

            SHA512

            20508bbb1caa8a4542e79a8a6e68dbf0be686a1258cbe9f2224d88439f89fbca67957770622480496ee9c961e2b0f6841eb5eda8c9fb71d9eb13ce71d3fd6805

          • C:\Users\Admin\AppData\Local\Temp\77feaa085f17f6fe07e7570d2727e4fd0fc781694b36edb29ba2f9338f021c90.exe.exe
            Filesize

            129KB

            MD5

            11111df26aba5a177fbd3ff2821a9e5d

            SHA1

            dba82329673e02dd99adbeb2d20538d10b6f484a

            SHA256

            25e0e882cca2fc89942924ae208abf9059fe3f8bd87a16f788f8aad1f61521df

            SHA512

            4d814017ce21b06208b5cd6814d40e801283a41216ea27986a88af50d2d61d23e9c54c0aafe6a8c509a94d156c59fb3dc8f46b902bcbc5acd185a712d31b2034

          • C:\Windows\Logo1_.exe
            Filesize

            33KB

            MD5

            3659e75ad8a2bdeef5f1d74aae41c2af

            SHA1

            95b2fa7bc2afbc1f412fc4285dbb6a15cc658a8a

            SHA256

            dbb4fdb10597cfb189203f72e75a2f2769a6960ed1acc1baa901742a344ae52d

            SHA512

            f19bbad48af80437f083d21cf89839bee9d30d50162df60a0d7c8205b646739332e55371f5d6c005f69681e41f00df936942c06f94f1a38c25084e438cac61e2

          • F:\$RECYCLE.BIN\S-1-5-21-1298544033-3225604241-2703760938-1000\_desktop.ini
            Filesize

            9B

            MD5

            e7957b9f3d9556c996418169821a7993

            SHA1

            b7028de0f91d2e50a8d5f6d23613331a2784a142

            SHA256

            71a21a13d7822776d52d9a6146651dc9155db9f0bfbd978acf43d12dea2a8539

            SHA512

            72bc8552047095449fa4c3c21300183acfc7b33e6ab69c11435542e2862cb9e896bbfdedaeb97ec6edac8ed68220507a302d1ed2217624c97f6e9a83c0d3a285

          • memory/1232-27-0x00000000024C0000-0x00000000024C1000-memory.dmp
            Filesize

            4KB

          • memory/2192-0-0x0000000000400000-0x000000000043F000-memory.dmp
            Filesize

            252KB

          • memory/2192-17-0x0000000000400000-0x000000000043F000-memory.dmp
            Filesize

            252KB

          • memory/2504-18-0x0000000000400000-0x000000000043F000-memory.dmp
            Filesize

            252KB

          • memory/2504-31-0x0000000000400000-0x000000000043F000-memory.dmp
            Filesize

            252KB

          • memory/2504-3160-0x0000000000400000-0x000000000043F000-memory.dmp
            Filesize

            252KB

          • memory/2504-4141-0x0000000000400000-0x000000000043F000-memory.dmp
            Filesize

            252KB