Analysis

  • max time kernel
    147s
  • max time network
    150s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    24/06/2021, 00:51

General

  • Target
    5ba96203fa7be66961318d47cd99f7de.exe
  • Size 37KB
  • Sample210624-cdvstr5e8n
  • SHA256 e11175a6771df0a22bd2fdb04e93daae3ef75539e3fb301a53fd51245a0ff256
  • MD5 SHA1 SHA512

Malware Config

Signatures

  • BitRAT

    BitRAT is a remote access tool written in C++ and uses leaked source code from other families.

  • BitRAT Payload 1 IoCs
  • Turns off Windows Defender SpyNet reporting 2 TTPs
  • UAC bypass 3 TTPs
  • Windows security bypass 2 TTPs
  • Nirsoft 6 IoCs
  • Executes dropped EXE 6 IoCs
  • UPX packed file 1 IoCs

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

  • Drops startup file 2 IoCs
  • Windows security modification 2 TTPs 12 IoCs
  • Checks whether UAC is enabled 1 TTPs 4 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 40 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 2 IoCs
  • Delays execution with timeout.exe 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 30 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5ba96203fa7be66961318d47cd99f7de.exe
    "C:\Users\Admin\AppData\Local\Temp\5ba96203fa7be66961318d47cd99f7de.exe"
    1⤵
    • Drops startup file
    • Windows security modification
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:3984
    • C:\Users\Admin\AppData\Local\Temp\8b1fa9ff-5c60-48fc-b681-f2cc30bd28db\AdvancedRun.exe
      "C:\Users\Admin\AppData\Local\Temp\8b1fa9ff-5c60-48fc-b681-f2cc30bd28db\AdvancedRun.exe" /EXEFilename "C:\Users\Admin\AppData\Local\Temp\8b1fa9ff-5c60-48fc-b681-f2cc30bd28db\test.bat" /WindowState ""0"" /PriorityClass ""32"" /CommandLine "" /StartDirectory "" /RunAs 8 /Run
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3680
      • C:\Users\Admin\AppData\Local\Temp\8b1fa9ff-5c60-48fc-b681-f2cc30bd28db\AdvancedRun.exe
        "C:\Users\Admin\AppData\Local\Temp\8b1fa9ff-5c60-48fc-b681-f2cc30bd28db\AdvancedRun.exe" /SpecialRun 4101d8 3680
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2740
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\5ba96203fa7be66961318d47cd99f7de.exe" -Force
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3968
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\5ba96203fa7be66961318d47cd99f7de.exe" -Force
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1440
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\9ecf3Y067T0c85D8b6fFg4rjsT62743fDu11adcn8I4k.exe" -Force
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2668
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\9ecf3Y067T0c85D8b6fFg4rjsT62743fDu11adcn8I4k.exe" -Force
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3812
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\5ba96203fa7be66961318d47cd99f7de.exe" -Force
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3796
    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\9ecf3Y067T0c85D8b6fFg4rjsT62743fDu11adcn8I4k.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\9ecf3Y067T0c85D8b6fFg4rjsT62743fDu11adcn8I4k.exe"
      2⤵
      • Executes dropped EXE
      • Checks whether UAC is enabled
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious use of SetThreadContext
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      • System policy modification
      PID:1524
      • C:\Users\Admin\AppData\Local\Temp\d5ff0aad-a133-4e78-8321-1052e58ad3aa\AdvancedRun.exe
        "C:\Users\Admin\AppData\Local\Temp\d5ff0aad-a133-4e78-8321-1052e58ad3aa\AdvancedRun.exe" /EXEFilename "C:\Users\Admin\AppData\Local\Temp\d5ff0aad-a133-4e78-8321-1052e58ad3aa\test.bat" /WindowState ""0"" /PriorityClass ""32"" /CommandLine "" /StartDirectory "" /RunAs 8 /Run
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2168
        • C:\Users\Admin\AppData\Local\Temp\d5ff0aad-a133-4e78-8321-1052e58ad3aa\AdvancedRun.exe
          "C:\Users\Admin\AppData\Local\Temp\d5ff0aad-a133-4e78-8321-1052e58ad3aa\AdvancedRun.exe" /SpecialRun 4101d8 2168
          4⤵
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          PID:4832
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\9ecf3Y067T0c85D8b6fFg4rjsT62743fDu11adcn8I4k.exe" -Force
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:4484
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\9ecf3Y067T0c85D8b6fFg4rjsT62743fDu11adcn8I4k.exe" -Force
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:4508
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Public\Documents\47c6a7DPI1cucTca98Ua4P0aa1kN771x80fde9Sd3d4\svchost.exe" -Force
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:4984
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\9ecf3Y067T0c85D8b6fFg4rjsT62743fDu11adcn8I4k.exe" -Force
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:4136
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Public\Documents\47c6a7DPI1cucTca98Ua4P0aa1kN771x80fde9Sd3d4\svchost.exe" -Force
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:2356
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /c timeout 1
        3⤵
          PID:4656
          • C:\Windows\SysWOW64\timeout.exe
            timeout 1
            4⤵
            • Delays execution with timeout.exe
            PID:3564
        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\9ecf3Y067T0c85D8b6fFg4rjsT62743fDu11adcn8I4k.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\9ecf3Y067T0c85D8b6fFg4rjsT62743fDu11adcn8I4k.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious use of NtSetInformationThreadHideFromDebugger
          • Suspicious use of AdjustPrivilegeToken
          PID:4884
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1524 -s 2396
          3⤵
          • Program crash
          • Suspicious use of AdjustPrivilegeToken
          PID:4144
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Public\Documents\47c6a7DPI1cucTca98Ua4P0aa1kN771x80fde9Sd3d4\svchost.exe" -Force
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:412
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\5ba96203fa7be66961318d47cd99f7de.exe" -Force
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4160
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Public\Documents\47c6a7DPI1cucTca98Ua4P0aa1kN771x80fde9Sd3d4\svchost.exe" -Force
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4296
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /c timeout 1
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4480
        • C:\Windows\SysWOW64\timeout.exe
          timeout 1
          3⤵
          • Delays execution with timeout.exe
          PID:4804
      • C:\Users\Admin\AppData\Local\Temp\5ba96203fa7be66961318d47cd99f7de.exe
        "C:\Users\Admin\AppData\Local\Temp\5ba96203fa7be66961318d47cd99f7de.exe"
        2⤵
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:5044
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3984 -s 2484
        2⤵
        • Drops file in Windows directory
        • Program crash
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4116

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          memory/412-226-0x0000000006ED3000-0x0000000006ED4000-memory.dmp

          memory/412-207-0x0000000006ED0000-0x0000000006ED1000-memory.dmp

          memory/412-224-0x000000007F5F0000-0x000000007F5F1000-memory.dmp

          memory/412-208-0x0000000006ED2000-0x0000000006ED3000-memory.dmp

          memory/1440-219-0x0000000007343000-0x0000000007344000-memory.dmp

          memory/1440-158-0x0000000007340000-0x0000000007341000-memory.dmp

          memory/1440-221-0x000000007F120000-0x000000007F121000-memory.dmp

          memory/1440-171-0x0000000007342000-0x0000000007343000-memory.dmp

          memory/1524-161-0x00000000055E0000-0x00000000055E1000-memory.dmp

          memory/2356-261-0x0000000007490000-0x0000000007491000-memory.dmp

          memory/2356-262-0x0000000007492000-0x0000000007493000-memory.dmp

          memory/2356-273-0x000000007EE40000-0x000000007EE41000-memory.dmp

          memory/2356-275-0x0000000007493000-0x0000000007494000-memory.dmp

          memory/2668-216-0x000000007F510000-0x000000007F511000-memory.dmp

          memory/2668-167-0x0000000000F00000-0x0000000000F01000-memory.dmp

          memory/2668-218-0x0000000000F03000-0x0000000000F04000-memory.dmp

          memory/2668-175-0x0000000000F02000-0x0000000000F03000-memory.dmp

          memory/3796-179-0x0000000000D92000-0x0000000000D93000-memory.dmp

          memory/3796-227-0x0000000000D93000-0x0000000000D94000-memory.dmp

          memory/3796-222-0x000000007F760000-0x000000007F761000-memory.dmp

          memory/3796-174-0x0000000000D90000-0x0000000000D91000-memory.dmp

          memory/3812-228-0x0000000004E53000-0x0000000004E54000-memory.dmp

          memory/3812-165-0x0000000004E52000-0x0000000004E53000-memory.dmp

          memory/3812-162-0x0000000004E50000-0x0000000004E51000-memory.dmp

          memory/3812-223-0x000000007E710000-0x000000007E711000-memory.dmp

          memory/3968-152-0x00000000074F0000-0x00000000074F1000-memory.dmp

          memory/3968-134-0x0000000004A90000-0x0000000004A91000-memory.dmp

          memory/3968-220-0x0000000004A43000-0x0000000004A44000-memory.dmp

          memory/3968-156-0x0000000004A42000-0x0000000004A43000-memory.dmp

          memory/3968-217-0x000000007E9F0000-0x000000007E9F1000-memory.dmp

          memory/3968-151-0x0000000004A40000-0x0000000004A41000-memory.dmp

          memory/3968-136-0x0000000007770000-0x0000000007771000-memory.dmp

          memory/3968-166-0x0000000007590000-0x0000000007591000-memory.dmp

          memory/3968-172-0x0000000007F80000-0x0000000007F81000-memory.dmp

          memory/3968-169-0x00000000076B0000-0x00000000076B1000-memory.dmp

          memory/3984-182-0x0000000006DF0000-0x0000000006DF1000-memory.dmp

          memory/3984-122-0x0000000009060000-0x0000000009061000-memory.dmp

          memory/3984-116-0x0000000004FE0000-0x0000000004FE1000-memory.dmp

          memory/3984-121-0x0000000009560000-0x0000000009561000-memory.dmp

          memory/3984-117-0x0000000005080000-0x0000000005081000-memory.dmp

          memory/3984-114-0x00000000006D0000-0x00000000006D1000-memory.dmp

          memory/3984-120-0x0000000008E80000-0x0000000009055000-memory.dmp

          memory/3984-119-0x0000000004AC0000-0x0000000004AC1000-memory.dmp

          memory/3984-118-0x0000000005600000-0x0000000005601000-memory.dmp

          memory/4136-271-0x000000007F150000-0x000000007F151000-memory.dmp

          memory/4136-274-0x0000000007543000-0x0000000007544000-memory.dmp

          memory/4136-260-0x0000000007542000-0x0000000007543000-memory.dmp

          memory/4136-259-0x0000000007540000-0x0000000007541000-memory.dmp

          memory/4160-229-0x0000000000E93000-0x0000000000E94000-memory.dmp

          memory/4160-211-0x0000000000E92000-0x0000000000E93000-memory.dmp

          memory/4160-210-0x0000000000E90000-0x0000000000E91000-memory.dmp

          memory/4160-225-0x000000007EA90000-0x000000007EA91000-memory.dmp

          memory/4296-213-0x0000000006C72000-0x0000000006C73000-memory.dmp

          memory/4296-230-0x000000007F540000-0x000000007F541000-memory.dmp

          memory/4296-231-0x0000000006C73000-0x0000000006C74000-memory.dmp

          memory/4296-212-0x0000000006C70000-0x0000000006C71000-memory.dmp

          memory/4484-254-0x0000000000F52000-0x0000000000F53000-memory.dmp

          memory/4484-253-0x0000000000F50000-0x0000000000F51000-memory.dmp

          memory/4484-272-0x0000000000F53000-0x0000000000F54000-memory.dmp

          memory/4484-268-0x000000007EB50000-0x000000007EB51000-memory.dmp

          memory/4508-265-0x000000007F2A0000-0x000000007F2A1000-memory.dmp

          memory/4508-255-0x0000000007340000-0x0000000007341000-memory.dmp

          memory/4508-267-0x0000000007343000-0x0000000007344000-memory.dmp

          memory/4508-256-0x0000000007342000-0x0000000007343000-memory.dmp

          memory/4984-258-0x0000000006AD2000-0x0000000006AD3000-memory.dmp

          memory/4984-270-0x0000000006AD3000-0x0000000006AD4000-memory.dmp

          memory/4984-257-0x0000000006AD0000-0x0000000006AD1000-memory.dmp

          memory/4984-269-0x000000007F7C0000-0x000000007F7C1000-memory.dmp

          memory/5044-215-0x0000000000400000-0x00000000007E5000-memory.dmp