Resubmissions

12/03/2024, 04:33

240312-e6vcjsad64

12/03/2024, 04:32

240312-e5y94sge5v10

12/03/2024, 04:26

240312-e2yjeaac668

11/03/2024, 05:00

240311-fng5yace258

Analysis

  • max time kernel
    7s
  • max time network
    8s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    12/03/2024, 04:32

Errors

Reason
Machine shutdown

General

  • Target
    Joex.exe
  • Size 7.5MB
  • Sample240312-e5y94sge5v
  • SHA256 42387aec3b3fbcc123e64ff3180be6f8dbdd856f9c3a59a4a8456e2fd589062d
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Disables Task Manager via registry modification
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 3 IoCs
  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Modifies WinLogon 2 TTPs 1 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Kills process with taskkill 2 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 34 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Joex.exe
    "C:\Users\Admin\AppData\Local\Temp\Joex.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2172
    • C:\Users\Admin\AppData\Local\Temp\Built.exe
      "C:\Users\Admin\AppData\Local\Temp\Built.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2196
      • C:\Users\Admin\AppData\Local\Temp\Built.exe
        "C:\Users\Admin\AppData\Local\Temp\Built.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        PID:2548
    • C:\Users\Admin\AppData\Local\Temp\DEAD JOEX.exe
      "C:\Users\Admin\AppData\Local\Temp\DEAD JOEX.exe"
      2⤵
      • Executes dropped EXE
      • Enumerates connected drives
      • Modifies WinLogon
      • Sets desktop wallpaper using registry
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2600
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\windl.bat""
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2688
        • C:\Windows\SysWOW64\taskkill.exe
          taskkill /f /im explorer.exe
          4⤵
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:2616
        • C:\Windows\SysWOW64\taskkill.exe
          taskkill /f /im taskmgr.exe
          4⤵
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:1992
        • C:\Windows\SysWOW64\Wbem\WMIC.exe
          wmic useraccount where name='Admin' set FullName='UR NEXT'
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:1664
        • C:\Windows\SysWOW64\Wbem\WMIC.exe
          wmic useraccount where name='Admin' rename 'UR NEXT'
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:2484
        • C:\Windows\SysWOW64\shutdown.exe
          shutdown /f /r /t 0
          4⤵
            PID:2408
    • C:\Windows\system32\LogonUI.exe
      "LogonUI.exe" /flags:0x0
      1⤵
        PID:1988
      • C:\Windows\system32\LogonUI.exe
        "LogonUI.exe" /flags:0x1
        1⤵
          PID:2120

        Network

              MITRE ATT&CK Enterprise v15

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              Built.exe

              • Path C:\Users\Admin\AppData\Local\Temp\Built.exe
              • Size 2.6MB
              • SHA256 63c4527e86fa54e23719cd98573886f3f58ab0c111aafb4b04b898cc4e2b9362
              • MD5 SHA1 SHA512 SSDEEP

              Built.exe

              • Path C:\Users\Admin\AppData\Local\Temp\Built.exe
              • Size 4.5MB
              • SHA256 c5f69da1435c889a93a228081e5a13ddf3d8f3c91bba5b7c460a60fe85058b30
              • MD5 SHA1 SHA512 SSDEEP

              Built.exe

              • Path C:\Users\Admin\AppData\Local\Temp\Built.exe
              • Size 3.7MB
              • SHA256 1e9ec4001852d28f946eab5d5d71953a71554f70a293b0f91dbf0fe65d465c50
              • MD5 SHA1 SHA512 SSDEEP

              DEAD JOEX.exe

              • Path C:\Users\Admin\AppData\Local\Temp\DEAD JOEX.exe
              • Size 4.2MB
              • SHA256 ce84996f66b7402a9adaa2b5cbc18f13817db745453345e80b8ccb97b03a7110
              • MD5 SHA1 SHA512 SSDEEP

              DEAD JOEX.exe

              • Path C:\Users\Admin\AppData\Local\Temp\DEAD JOEX.exe
              • Size 3.0MB
              • SHA256 0e9c1f4bc0450d8014b25b7635ff6aa96227e6b8741f56e578338c6658751cc5
              • MD5 SHA1 SHA512 SSDEEP

              python311.dll

              • Path C:\Users\Admin\AppData\Local\Temp\_MEI21962\python311.dll
              • Size 1.6MB
              • SHA256 7e1370058177d78a415b7ed113cc15472974440d84267fc44cdc5729535e3967
              • MD5 SHA1 SHA512 SSDEEP

              one.rtf

              • Path C:\Users\Admin\AppData\Local\Temp\one.rtf
              • Size 403B
              • SHA256 e152b106733d9263d3cf175f0b6197880d70acb753f8bde8035a3e4865b31690
              • MD5 SHA1 SHA512

              rniw.exe

              • Path C:\Users\Admin\AppData\Local\Temp\rniw.exe
              • Size 76KB
              • SHA256 70faa0e1498461731f873d3594f20cbf2beaa6f123a06b66f9df59a9cdf862be
              • MD5 SHA1 SHA512 SSDEEP

              v.mp4

              • Path C:\Users\Admin\AppData\Local\Temp\v.mp4
              • Size 81KB
              • SHA256 95374cf300097872a546d89306374e7cf2676f7a8b4c70274245d2dccfc79443
              • MD5 SHA1 SHA512 SSDEEP

              windl.bat

              • Path C:\Users\Admin\AppData\Local\Temp\windl.bat
              • Size 771B
              • SHA256 b551fba71dfd526d4916ae277d8686d83fff36d22fcf6f18457924a070b30ef7
              • MD5 SHA1 SHA512

              UR NEXT UR NEXT UR NEXT UR NEXT UR NEXT UR NEXT UR NEXT UR N1XT.txt

              • Path C:\Users\Admin\Desktop\UR NEXT UR NEXT UR NEXT UR NEXT UR NEXT UR NEXT UR NEXT UR N1XT.txt
              • Size 396B
              • SHA256 38c889b5d7bdcb79bbcb55554c520a9ce74b5bfc29c19d1e4cb1419176c99f48
              • MD5 SHA1 SHA512

              Built.exe

              • Path \Users\Admin\AppData\Local\Temp\Built.exe
              • Size 3.0MB
              • SHA256 5ca29ba3f04e573793d410e2d8bf6dd7e6120ca7cd78e165eb80071405ef5329
              • MD5 SHA1 SHA512 SSDEEP

              Built.exe

              • Path \Users\Admin\AppData\Local\Temp\Built.exe
              • Size 4.7MB
              • SHA256 ed78f8cd1d82ac15ad1e7bc2df97fa14a588dbb854bf3473623ba3bfbf3f3f8a
              • MD5 SHA1 SHA512 SSDEEP

              memory/1988-888-0x0000000002D90000-0x0000000002D91000-memory.dmp

              memory/2120-917-0x0000000002B30000-0x0000000002B31000-memory.dmp

              memory/2172-0-0x0000000000E50000-0x00000000015D6000-memory.dmp

              memory/2172-1-0x000007FEF5F70000-0x000007FEF695C000-memory.dmp

              memory/2172-41-0x000007FEF5F70000-0x000007FEF695C000-memory.dmp

              memory/2172-2-0x000000001BA00000-0x000000001BA80000-memory.dmp

              memory/2548-45-0x000007FEF2A10000-0x000007FEF2FF9000-memory.dmp

              memory/2600-79-0x0000000000C20000-0x0000000000C2A000-memory.dmp

              memory/2600-74-0x0000000000B80000-0x0000000000B8A000-memory.dmp

              memory/2600-78-0x0000000000B80000-0x0000000000B8A000-memory.dmp

              memory/2600-61-0x0000000000760000-0x000000000076A000-memory.dmp

              memory/2600-80-0x0000000000D50000-0x0000000000D5A000-memory.dmp

              memory/2600-77-0x0000000000B80000-0x0000000000B8A000-memory.dmp

              memory/2600-81-0x0000000000B20000-0x0000000000B21000-memory.dmp

              memory/2600-76-0x0000000000B80000-0x0000000000B8A000-memory.dmp

              memory/2600-75-0x0000000000B80000-0x0000000000B8A000-memory.dmp

              memory/2600-63-0x00000000052F0000-0x0000000005330000-memory.dmp

              memory/2600-73-0x0000000000B80000-0x0000000000B8A000-memory.dmp

              memory/2600-72-0x000000006C0C0000-0x000000006C3D2000-memory.dmp

              memory/2600-62-0x0000000000760000-0x000000000076A000-memory.dmp

              memory/2600-48-0x00000000052F0000-0x0000000005330000-memory.dmp

              memory/2600-47-0x0000000001190000-0x000000000183E000-memory.dmp

              memory/2600-913-0x00000000052F0000-0x0000000005330000-memory.dmp

              memory/2600-916-0x000000006C0C0000-0x000000006C3D2000-memory.dmp

              memory/2600-915-0x0000000000D50000-0x0000000000D55000-memory.dmp

              memory/2600-914-0x0000000074E50000-0x000000007553E000-memory.dmp

              memory/2600-46-0x0000000074E50000-0x000000007553E000-memory.dmp