Analysis

  • max time kernel
    150s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240220-en
  • resource tags

    arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
  • submitted
    28-04-2024 20:14

General

  • Target

    a1bc7f341a923494f613163bd10a80a89527d1a5b508ef45bbc3fcfaadac6e26.exe

  • Size

    66KB

  • MD5

    0720aacf93b98ea709117e80d2227972

  • SHA1

    5ef46f3867d4dbb193cd6deb9bcecf903c195e43

  • SHA256

    a1bc7f341a923494f613163bd10a80a89527d1a5b508ef45bbc3fcfaadac6e26

  • SHA512

    5a61548231c9402170d686b36f79363bb8665837cb67ebfc57236f358be1a6f7175c62e8e84d2bfee43f3d6983f794d95598607c24293b3c58e02ffd1a432016

  • SSDEEP

    1536:/qbSe+Zk78NR3dN5nPkb4yzwC132n6wkj7:/3e+a+3dN5cb4yzjwkH

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:1092
      • C:\Users\Admin\AppData\Local\Temp\a1bc7f341a923494f613163bd10a80a89527d1a5b508ef45bbc3fcfaadac6e26.exe
        "C:\Users\Admin\AppData\Local\Temp\a1bc7f341a923494f613163bd10a80a89527d1a5b508ef45bbc3fcfaadac6e26.exe"
        2⤵
        • Drops file in Windows directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:2644
        • C:\Windows\SysWOW64\net.exe
          net stop "Kingsoft AntiVirus Service"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:2160
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
            4⤵
              PID:2472
          • C:\Windows\SysWOW64\cmd.exe
            cmd /c C:\Users\Admin\AppData\Local\Temp\$$a1AC1.bat
            3⤵
            • Deletes itself
            • Loads dropped DLL
            • Suspicious use of WriteProcessMemory
            PID:2620
            • C:\Users\Admin\AppData\Local\Temp\a1bc7f341a923494f613163bd10a80a89527d1a5b508ef45bbc3fcfaadac6e26.exe
              "C:\Users\Admin\AppData\Local\Temp\a1bc7f341a923494f613163bd10a80a89527d1a5b508ef45bbc3fcfaadac6e26.exe"
              4⤵
              • Executes dropped EXE
              PID:2396
          • 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:2520
            • C:\Windows\SysWOW64\net.exe
              net stop "Kingsoft AntiVirus Service"
              4⤵
              • Suspicious use of WriteProcessMemory
              PID:2484
              • C:\Windows\SysWOW64\net1.exe
                C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
                5⤵
                  PID:2808
              • C:\Windows\SysWOW64\net.exe
                net stop "Kingsoft AntiVirus Service"
                4⤵
                • Suspicious use of WriteProcessMemory
                PID:2364
                • C:\Windows\SysWOW64\net1.exe
                  C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
                  5⤵
                    PID:2432

          Network

          MITRE ATT&CK Enterprise v15

          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\$$a1AC1.bat
            Filesize

            722B

            MD5

            975300e38e8acd06582e717792becf56

            SHA1

            014fd49491bdb8549a6e1a0b5ba53f9cf874fb0a

            SHA256

            2609388a2d2997269f5648ad6cf5c6d27430f84465e640b93b54d50d37e76959

            SHA512

            23f997c6f382de8d523d20cd2c4870212732cdfff7e987d8f4fad03e96485a33c114a3e56bafa488d5d4f65f37735e6d66fe1d2595529289790d58819ac61e0b

          • C:\Users\Admin\AppData\Local\Temp\a1bc7f341a923494f613163bd10a80a89527d1a5b508ef45bbc3fcfaadac6e26.exe.exe
            Filesize

            33KB

            MD5

            e27df2dd35f9e988ae5eb765cdf26dcf

            SHA1

            c21252dbf9e06e2d4492c3bbd6c29c41b5eb8440

            SHA256

            cdd28c680dd5ccaa7cc5accc72825a3705747717735e0a6a3f446bfdcb27b044

            SHA512

            8ea4e39586c42f983e07ab887e04147ab43757aa605997ad8487c64adbef51740ecc62b7030bbebf3bd962c65c1e66ee24d6d7e780b3e7ce0344f2bf2194ed50

          • C:\Windows\Logo1_.exe
            Filesize

            33KB

            MD5

            3659e75ad8a2bdeef5f1d74aae41c2af

            SHA1

            95b2fa7bc2afbc1f412fc4285dbb6a15cc658a8a

            SHA256

            dbb4fdb10597cfb189203f72e75a2f2769a6960ed1acc1baa901742a344ae52d

            SHA512

            f19bbad48af80437f083d21cf89839bee9d30d50162df60a0d7c8205b646739332e55371f5d6c005f69681e41f00df936942c06f94f1a38c25084e438cac61e2

          • F:\$RECYCLE.BIN\S-1-5-21-2721934792-624042501-2768869379-1000\_desktop.ini
            Filesize

            9B

            MD5

            e7957b9f3d9556c996418169821a7993

            SHA1

            b7028de0f91d2e50a8d5f6d23613331a2784a142

            SHA256

            71a21a13d7822776d52d9a6146651dc9155db9f0bfbd978acf43d12dea2a8539

            SHA512

            72bc8552047095449fa4c3c21300183acfc7b33e6ab69c11435542e2862cb9e896bbfdedaeb97ec6edac8ed68220507a302d1ed2217624c97f6e9a83c0d3a285

          • memory/1092-27-0x0000000002D40000-0x0000000002D41000-memory.dmp
            Filesize

            4KB

          • memory/2520-18-0x0000000000400000-0x000000000043F000-memory.dmp
            Filesize

            252KB

          • memory/2520-31-0x0000000000400000-0x000000000043F000-memory.dmp
            Filesize

            252KB

          • memory/2520-3318-0x0000000000400000-0x000000000043F000-memory.dmp
            Filesize

            252KB

          • memory/2520-4143-0x0000000000400000-0x000000000043F000-memory.dmp
            Filesize

            252KB

          • memory/2644-0-0x0000000000400000-0x000000000043F000-memory.dmp
            Filesize

            252KB

          • memory/2644-17-0x0000000000400000-0x000000000043F000-memory.dmp
            Filesize

            252KB