Resubmissions

28-04-2024 10:26

240428-mgn38sdf33 7

28-04-2024 10:21

240428-mdvfvadg61 7

Analysis

  • max time kernel
    291s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240419-en
  • resource tags

    arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
  • submitted
    28-04-2024 10:26

General

  • Target

    1c4e38c8ed1324dd35926d8e43a5cfd3c34980e960cef53f6f4acbb8ecf2454f.exe

  • Size

    98KB

  • MD5

    9ca947cbd002cc95677ee88e6307fead

  • SHA1

    e5c64d3d3c3d05d8cf0aea2809cf4d2403a5d758

  • SHA256

    1c4e38c8ed1324dd35926d8e43a5cfd3c34980e960cef53f6f4acbb8ecf2454f

  • SHA512

    616a0afd5051fecb7fb98a36447a4b14941bb250b4975f788b88739a32bfec53ba3bc3c3a020bd786442a37a0758255221fdbadb0bece4902e48e7c6cd5f77cd

  • SSDEEP

    3072:8CYe+azbRPrlr9RXFHLK4ddJMY86ipmns6S:dd+azbRZvNKCJMYU

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:1192
      • C:\Users\Admin\AppData\Local\Temp\1c4e38c8ed1324dd35926d8e43a5cfd3c34980e960cef53f6f4acbb8ecf2454f.exe
        "C:\Users\Admin\AppData\Local\Temp\1c4e38c8ed1324dd35926d8e43a5cfd3c34980e960cef53f6f4acbb8ecf2454f.exe"
        2⤵
        • Drops file in Windows directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:2424
        • C:\Windows\SysWOW64\net.exe
          net stop "Kingsoft AntiVirus Service"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:3036
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
            4⤵
              PID:1656
          • C:\Windows\SysWOW64\cmd.exe
            cmd /c C:\Users\Admin\AppData\Local\Temp\$$a992.bat
            3⤵
            • Deletes itself
            • Loads dropped DLL
            • Suspicious use of WriteProcessMemory
            PID:2020
            • C:\Users\Admin\AppData\Local\Temp\1c4e38c8ed1324dd35926d8e43a5cfd3c34980e960cef53f6f4acbb8ecf2454f.exe
              "C:\Users\Admin\AppData\Local\Temp\1c4e38c8ed1324dd35926d8e43a5cfd3c34980e960cef53f6f4acbb8ecf2454f.exe"
              4⤵
              • Executes dropped EXE
              PID:2024
          • 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:2660
            • C:\Windows\SysWOW64\net.exe
              net stop "Kingsoft AntiVirus Service"
              4⤵
              • Suspicious use of WriteProcessMemory
              PID:2672
              • C:\Windows\SysWOW64\net1.exe
                C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
                5⤵
                  PID:2636
              • C:\Windows\SysWOW64\net.exe
                net stop "Kingsoft AntiVirus Service"
                4⤵
                • Suspicious use of WriteProcessMemory
                PID:2836
                • C:\Windows\SysWOW64\net1.exe
                  C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
                  5⤵
                    PID:2264

          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\$$a992.bat
            Filesize

            721B

            MD5

            6f5f51aff48cbae299e85d0dca9bfc9e

            SHA1

            60fe75b78913605c283b0278d30f597efb74bf95

            SHA256

            517731aa40978c19df1d51bd262922905edcb2818b3e18c8efeb388d2c232dbd

            SHA512

            5e7b59b2143f4c9d122307fd19324e91d24af6157b102a2b80a1fb6914bad2a1a9b7cab6e0a2655c40fbbfa6762b6ad8c12c07180a20e3cd8eeb01bd6926e40c

          • C:\Users\Admin\AppData\Local\Temp\1c4e38c8ed1324dd35926d8e43a5cfd3c34980e960cef53f6f4acbb8ecf2454f.exe.exe
            Filesize

            59KB

            MD5

            dfc18f7068913dde25742b856788d7ca

            SHA1

            cbaa23f782c2ddcd7c9ff024fd0b096952a2b387

            SHA256

            ff4ac75c02247000da084de006c214d3dd3583867bd3533ba788e22734c7a2bf

            SHA512

            d0c7ec1dae41a803325b51c12490c355ed779d297daa35247889950491e52427810132f0829fc7ffa3022f1a106f4e4ba78ed612223395313a6f267e9ab24945

          • C:\Windows\Logo1_.exe
            Filesize

            39KB

            MD5

            e562a49de2a4fe02528334fb6bab74a7

            SHA1

            f7fe5abfcc74025ccce004838f6691c9b065fda2

            SHA256

            aa959e0bb3f9e45c50b690682cb03b3f8a26bac4e9b2484245b6428d9d41aefd

            SHA512

            a4eabce52bd0a2fec53bfd83eb98e6446717e1ed6f3242e970a055bf2c7c7ea9423235c97c022031ff7fb1b7af0e650f543e932bb962d0e1246c60ca13008df5

          • F:\$RECYCLE.BIN\S-1-5-21-481678230-3773327859-3495911762-1000\_desktop.ini
            Filesize

            9B

            MD5

            e7957b9f3d9556c996418169821a7993

            SHA1

            b7028de0f91d2e50a8d5f6d23613331a2784a142

            SHA256

            71a21a13d7822776d52d9a6146651dc9155db9f0bfbd978acf43d12dea2a8539

            SHA512

            72bc8552047095449fa4c3c21300183acfc7b33e6ab69c11435542e2862cb9e896bbfdedaeb97ec6edac8ed68220507a302d1ed2217624c97f6e9a83c0d3a285

          • memory/1192-27-0x0000000002D70000-0x0000000002D71000-memory.dmp
            Filesize

            4KB

          • memory/2424-0-0x0000000000400000-0x000000000043D000-memory.dmp
            Filesize

            244KB

          • memory/2424-17-0x0000000000400000-0x000000000043D000-memory.dmp
            Filesize

            244KB

          • memory/2660-30-0x0000000000400000-0x000000000043D000-memory.dmp
            Filesize

            244KB

          • memory/2660-18-0x0000000000400000-0x000000000043D000-memory.dmp
            Filesize

            244KB

          • memory/2660-3341-0x0000000000400000-0x000000000043D000-memory.dmp
            Filesize

            244KB

          • memory/2660-4172-0x0000000000400000-0x000000000043D000-memory.dmp
            Filesize

            244KB

          • memory/2660-4196-0x0000000000400000-0x000000000043D000-memory.dmp
            Filesize

            244KB