Resubmissions

06/10/2021, 11:22

211006-ng1mpsbcfl10

06/10/2021, 09:28

211006-lfb7lsbbfp10

Analysis

  • max time kernel
    141s
  • max time network
    140s
  • platform
    windows10_x64
  • resource
    win10-en-20210920
  • submitted
    06/10/2021, 09:28

General

  • Target
    b9c425eb7459450b0dd1d0aac6dd1e77.exe
  • Size 1.2MB
  • Sample211006-lfb7lsbbfp
  • SHA256 1c94046bb5594620da42643328011854ddc455c8eca7973a188acd5fbec27655
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • danabot

C2
  • 142.11.242.31:443

  • 192.119.110.73:443

  • 192.210.222.88:443

Attributes
  • embedded_hash

    F4711E27D559B4AEB1A081A1EB0AC465

  • type

    loader

rsa_pubkey.plain
rsa_privkey.plain

Extracted

Family
  • danabot

Version
  • 2052

Botnet
  • 4

C2
  • 142.11.242.31:443

  • 192.119.110.73:443

  • 192.210.222.88:443

Attributes
  • embedded_hash

    F4711E27D559B4AEB1A081A1EB0AC465

  • type

    main

rsa_privkey.plain
rsa_pubkey.plain

Signatures

  • Danabot

    Danabot is a modular banking Trojan that has been linked with other malware.

  • Danabot Loader Component 4 IoCs
  • Suspicious use of NtCreateProcessExOtherParentProcess 1 IoCs
  • Blocklisted process makes network request 2 IoCs
  • Loads dropped DLL 3 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Checks processor information in registry 2 TTPs 43 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 32 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 32 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b9c425eb7459450b0dd1d0aac6dd1e77.exe
    "C:\Users\Admin\AppData\Local\Temp\b9c425eb7459450b0dd1d0aac6dd1e77.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2136
    • C:\Windows\SysWOW64\rundll32.exe
      C:\Windows\system32\rundll32.exe C:\Users\Admin\AppData\Local\Temp\B9C425~1.DLL,s C:\Users\Admin\AppData\Local\Temp\B9C425~1.EXE
      2⤵
      • Blocklisted process makes network request
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of WriteProcessMemory
      PID:2372
      • C:\Windows\SysWOW64\RUNDLL32.EXE
        C:\Windows\system32\RUNDLL32.EXE C:\Users\Admin\AppData\Local\Temp\B9C425~1.DLL,a2EKalE=
        3⤵
        • Blocklisted process makes network request
        • Loads dropped DLL
        • Checks processor information in registry
        • Modifies system certificate store
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of WriteProcessMemory
        PID:2708
        • 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\B9C425~1.DLL
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1088
        • C:\Windows\SysWOW64\RUNDLL32.EXE
          C:\Windows\system32\RUNDLL32.EXE C:\Users\Admin\AppData\Local\Temp\B9C425~1.DLL,hDVOSjNWTkI=
          4⤵
          • Loads dropped DLL
          • Suspicious use of SetThreadContext
          • Checks processor information in registry
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:4080
          • C:\Windows\system32\rundll32.exe
            C:\Windows\system32\rundll32.exe C:\Windows\system32\shell32.dll,#61 19638
            5⤵
            • Modifies Internet Explorer settings
            • Suspicious use of FindShellTrayWindow
            • Suspicious use of WriteProcessMemory
            PID:680
            • C:\Windows\system32\ctfmon.exe
              ctfmon.exe
              6⤵
                PID:2012
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Executionpolicy bypass -File "C:\Users\Admin\AppData\Local\Temp\tmpD581.tmp.ps1"
            4⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:2172
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Executionpolicy bypass -File "C:\Users\Admin\AppData\Local\Temp\tmpFC93.tmp.ps1"
            4⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:3888
            • C:\Windows\SysWOW64\nslookup.exe
              "C:\Windows\system32\nslookup.exe" -type=any localhost
              5⤵
                PID:2264
            • C:\Windows\SysWOW64\schtasks.exe
              schtasks /End /tn \Microsoft\Windows\Wininet\CacheTask
              4⤵
                PID:1512
              • C:\Windows\SysWOW64\schtasks.exe
                schtasks /Run /tn \Microsoft\Windows\Wininet\CacheTask
                4⤵
                  PID:1124
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 2372 -s 792
                3⤵
                • Suspicious use of NtCreateProcessExOtherParentProcess
                • Program crash
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                PID:3448

          Network

                MITRE ATT&CK Enterprise v6

                Replay Monitor

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                Downloads

                memory/680-155-0x000001FF0A5C0000-0x000001FF0A772000-memory.dmp

                memory/680-154-0x0000000000370000-0x0000000000510000-memory.dmp

                memory/1088-410-0x0000000009960000-0x0000000009961000-memory.dmp

                memory/1088-139-0x0000000007620000-0x0000000007621000-memory.dmp

                memory/1088-140-0x0000000007F90000-0x0000000007F91000-memory.dmp

                memory/1088-141-0x0000000007F10000-0x0000000007F11000-memory.dmp

                memory/1088-142-0x00000000080E0000-0x00000000080E1000-memory.dmp

                memory/1088-145-0x0000000008470000-0x0000000008471000-memory.dmp

                memory/1088-416-0x0000000009940000-0x0000000009941000-memory.dmp

                memory/1088-135-0x0000000004B92000-0x0000000004B93000-memory.dmp

                memory/1088-146-0x00000000089E0000-0x00000000089E1000-memory.dmp

                memory/1088-195-0x0000000004B93000-0x0000000004B94000-memory.dmp

                memory/1088-152-0x0000000008780000-0x0000000008781000-memory.dmp

                memory/1088-134-0x0000000004B90000-0x0000000004B91000-memory.dmp

                memory/1088-133-0x00000000078B0000-0x00000000078B1000-memory.dmp

                memory/1088-132-0x0000000004C40000-0x0000000004C41000-memory.dmp

                memory/1088-190-0x0000000009A60000-0x0000000009A61000-memory.dmp

                memory/1088-172-0x0000000009720000-0x0000000009753000-memory.dmp

                memory/1088-187-0x0000000009850000-0x0000000009851000-memory.dmp

                memory/1088-181-0x0000000009700000-0x0000000009701000-memory.dmp

                memory/1088-182-0x000000007F8F0000-0x000000007F8F1000-memory.dmp

                memory/2136-115-0x0000000000F30000-0x0000000001035000-memory.dmp

                memory/2136-116-0x0000000000400000-0x0000000000958000-memory.dmp

                memory/2172-240-0x0000000008A30000-0x0000000008A31000-memory.dmp

                memory/2172-264-0x0000000007DB0000-0x0000000007DB1000-memory.dmp

                memory/2172-205-0x0000000006840000-0x0000000006841000-memory.dmp

                memory/2172-274-0x00000000041E3000-0x00000000041E4000-memory.dmp

                memory/2172-180-0x00000000041E2000-0x00000000041E3000-memory.dmp

                memory/2172-237-0x0000000009490000-0x0000000009491000-memory.dmp

                memory/2172-179-0x00000000041E0000-0x00000000041E1000-memory.dmp

                memory/2372-125-0x0000000004A90000-0x0000000005A75000-memory.dmp

                memory/2708-128-0x0000000005260000-0x0000000006245000-memory.dmp

                memory/3888-391-0x00000000067A2000-0x00000000067A3000-memory.dmp

                memory/3888-438-0x00000000067A3000-0x00000000067A4000-memory.dmp

                memory/3888-389-0x00000000067A0000-0x00000000067A1000-memory.dmp

                memory/4080-147-0x00000000050D0000-0x00000000060B5000-memory.dmp

                memory/4080-153-0x0000000006310000-0x0000000006311000-memory.dmp