Resubmissions

28-04-2024 10:26

240428-mgy87sdf42 7

28-04-2024 10:21

240428-mdpkladg6v 7

Analysis

  • max time kernel
    150s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    28-04-2024 10:21

General

  • Target

    a2e7f878fd53f3711fd8602d4d080a930e98e23cc80ff3411a311c44cb6adcb0.exe

  • Size

    81KB

  • MD5

    b0c964cf88a9f279e6d294b1ac2ac71a

  • SHA1

    b30786775331eb1d1dc8c857ca33a0703d0defc6

  • SHA256

    a2e7f878fd53f3711fd8602d4d080a930e98e23cc80ff3411a311c44cb6adcb0

  • SHA512

    c31ce0e5f05ef0735678ef2290b5e817539d23b357032146e261fc9c48d844874371bfe9263a771b90c7c238a27b693803b002a276261bceb9f79e8ff4f224ac

  • SSDEEP

    1536:8CKFe+Zk7VJbwlYXjPrsqrZMYR5p8wwEToa9D4ZQKbgZi1dst7x9PxQ:8CYe+azbRPrlr9RXFIlZQKbgZi1St7xQ

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:1224
      • C:\Users\Admin\AppData\Local\Temp\a2e7f878fd53f3711fd8602d4d080a930e98e23cc80ff3411a311c44cb6adcb0.exe
        "C:\Users\Admin\AppData\Local\Temp\a2e7f878fd53f3711fd8602d4d080a930e98e23cc80ff3411a311c44cb6adcb0.exe"
        2⤵
        • Drops file in Windows directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:2972
        • C:\Windows\SysWOW64\net.exe
          net stop "Kingsoft AntiVirus Service"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:2000
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
            4⤵
              PID:2112
          • C:\Windows\SysWOW64\cmd.exe
            cmd /c C:\Users\Admin\AppData\Local\Temp\$$a2185.bat
            3⤵
            • Deletes itself
            • Loads dropped DLL
            • Suspicious use of WriteProcessMemory
            PID:2100
            • C:\Users\Admin\AppData\Local\Temp\a2e7f878fd53f3711fd8602d4d080a930e98e23cc80ff3411a311c44cb6adcb0.exe
              "C:\Users\Admin\AppData\Local\Temp\a2e7f878fd53f3711fd8602d4d080a930e98e23cc80ff3411a311c44cb6adcb0.exe"
              4⤵
              • Executes dropped EXE
              PID:2588
          • 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:2656
            • C:\Windows\SysWOW64\net.exe
              net stop "Kingsoft AntiVirus Service"
              4⤵
              • Suspicious use of WriteProcessMemory
              PID:2580
              • C:\Windows\SysWOW64\net1.exe
                C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
                5⤵
                  PID:2772
              • C:\Windows\SysWOW64\net.exe
                net stop "Kingsoft AntiVirus Service"
                4⤵
                • Suspicious use of WriteProcessMemory
                PID:2744
                • C:\Windows\SysWOW64\net1.exe
                  C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
                  5⤵
                    PID:2564

          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

            484KB

            MD5

            79d4fd1cb70f3844796aa1ea18a238e2

            SHA1

            78d207a7de2aeb85eefc185d894b0b7626e1e1f3

            SHA256

            ccaacc3965c1bdfce8cd1e934895a4563dddf082016e56846966c250bed87d5b

            SHA512

            7a0167cbce49f09ea39e490862b8c371eacf8ce3d74d6a6054e7f0e1df4b307019f5adee03603fcb9d4db2b17841cbc9cf129e9480d70b20c266fe82b3979b33

          • C:\Users\Admin\AppData\Local\Temp\$$a2185.bat
            Filesize

            722B

            MD5

            cfee0ed07667e82e5910d22108c844a0

            SHA1

            e7f641e3cef8cdf3c08b82492a854bc17b0fb65f

            SHA256

            19f8a82810ef44ee428395affa7864f2577d66551ec56e6d2d0f2f2220d6badf

            SHA512

            56faa27c4d6370f8a7a39d9e48fedd5b9740a19c0c71c75bf03d92af5abf14379af15b6e606bad3360111fe3ab48fa0aeef7c1cd748b773a25509cbd2fbf1673

          • C:\Users\Admin\AppData\Local\Temp\a2e7f878fd53f3711fd8602d4d080a930e98e23cc80ff3411a311c44cb6adcb0.exe.exe
            Filesize

            41KB

            MD5

            977e405c109268909fd24a94cc23d4f0

            SHA1

            af5d032c2b6caa2164cf298e95b09060665c4188

            SHA256

            cd24c61fe7dc3896c6c928c92a2adc58fab0a3ff61ef7ddcac1ba794182ab12f

            SHA512

            12b4b59c1a8e65e72aa07ee4b6b6cd9fdedead01d5ce8e30f16ca26b5d733655e23a71c1d273a950a5b1a6cce810b696612de4a1148ac5f468ddf05d4549eed5

          • C:\Windows\Logo1_.exe
            Filesize

            39KB

            MD5

            e562a49de2a4fe02528334fb6bab74a7

            SHA1

            f7fe5abfcc74025ccce004838f6691c9b065fda2

            SHA256

            aa959e0bb3f9e45c50b690682cb03b3f8a26bac4e9b2484245b6428d9d41aefd

            SHA512

            a4eabce52bd0a2fec53bfd83eb98e6446717e1ed6f3242e970a055bf2c7c7ea9423235c97c022031ff7fb1b7af0e650f543e932bb962d0e1246c60ca13008df5

          • F:\$RECYCLE.BIN\S-1-5-21-3452737119-3959686427-228443150-1000\_desktop.ini
            Filesize

            9B

            MD5

            e7957b9f3d9556c996418169821a7993

            SHA1

            b7028de0f91d2e50a8d5f6d23613331a2784a142

            SHA256

            71a21a13d7822776d52d9a6146651dc9155db9f0bfbd978acf43d12dea2a8539

            SHA512

            72bc8552047095449fa4c3c21300183acfc7b33e6ab69c11435542e2862cb9e896bbfdedaeb97ec6edac8ed68220507a302d1ed2217624c97f6e9a83c0d3a285

          • memory/1224-29-0x00000000024A0000-0x00000000024A1000-memory.dmp
            Filesize

            4KB

          • memory/2656-4135-0x0000000000400000-0x000000000043D000-memory.dmp
            Filesize

            244KB

          • memory/2656-21-0x0000000000400000-0x000000000043D000-memory.dmp
            Filesize

            244KB

          • memory/2656-3324-0x0000000000400000-0x000000000043D000-memory.dmp
            Filesize

            244KB

          • memory/2656-33-0x0000000000400000-0x000000000043D000-memory.dmp
            Filesize

            244KB

          • memory/2972-18-0x00000000002A0000-0x00000000002DD000-memory.dmp
            Filesize

            244KB

          • memory/2972-19-0x00000000002A0000-0x00000000002DD000-memory.dmp
            Filesize

            244KB

          • memory/2972-20-0x0000000000400000-0x000000000043D000-memory.dmp
            Filesize

            244KB

          • memory/2972-0-0x0000000000400000-0x000000000043D000-memory.dmp
            Filesize

            244KB