Resubmissions

06/10/2021, 11:22

211006-ng1mpsbcfl10

06/10/2021, 09:28

211006-lfb7lsbbfp10

Analysis

  • max time kernel
    1191s
  • max time network
    1166s
  • platform
    windows7_x64
  • resource
    win7-en-20210920
  • submitted
    06/10/2021, 11:22

General

  • Target
    b9c425eb7459450b0dd1d0aac6dd1e77.exe
  • Size 1.2MB
  • Sample211006-ng1mpsbcfl
  • 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 17 IoCs
  • Blocklisted process makes network request 5 IoCs
  • Loads dropped DLL 12 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.

  • Checks processor information in registry 2 TTPs 53 IoCs

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

  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 49 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b9c425eb7459450b0dd1d0aac6dd1e77.exe
    "C:\Users\Admin\AppData\Local\Temp\b9c425eb7459450b0dd1d0aac6dd1e77.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1212
    • 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:1340
      • C:\Windows\SysWOW64\RUNDLL32.EXE
        C:\Windows\system32\RUNDLL32.EXE C:\Users\Admin\AppData\Local\Temp\B9C425~1.DLL,bhhWN3BE
        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:572
        • C:\Windows\SysWOW64\RUNDLL32.EXE
          C:\Windows\system32\RUNDLL32.EXE C:\Users\Admin\AppData\Local\Temp\B9C425~1.DLL,EQsFclQyUA==
          4⤵
          • Loads dropped DLL
          • Suspicious use of SetThreadContext
          • Checks processor information in registry
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:1892
          • C:\Windows\system32\rundll32.exe
            C:\Windows\system32\rundll32.exe C:\Windows\system32\shell32.dll,#61 17710
            5⤵
            • Suspicious use of FindShellTrayWindow
            • Suspicious use of WriteProcessMemory
            PID:1928
            • C:\Windows\system32\ctfmon.exe
              ctfmon.exe
              6⤵
                PID:1620
          • 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\tmp165D.tmp.ps1"
            4⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:1764
          • 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\tmp2656.tmp.ps1"
            4⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:1692
            • C:\Windows\SysWOW64\nslookup.exe
              "C:\Windows\system32\nslookup.exe" -type=any localhost
              5⤵
                PID:1832
            • C:\Windows\SysWOW64\schtasks.exe
              schtasks /End /tn \Microsoft\Windows\Wininet\CacheTask
              4⤵
                PID:1468
              • C:\Windows\SysWOW64\schtasks.exe
                schtasks /Run /tn \Microsoft\Windows\Wininet\CacheTask
                4⤵
                  PID:1152

          Network

                MITRE ATT&CK Enterprise v6

                Replay Monitor

                Loading Replay Monitor...

                Downloads

                memory/572-71-0x0000000001C20000-0x0000000001D81000-memory.dmp

                memory/572-75-0x00000000024E0000-0x00000000034C5000-memory.dmp

                memory/572-74-0x0000000001D90000-0x0000000001D91000-memory.dmp

                memory/1212-53-0x0000000075331000-0x0000000075333000-memory.dmp

                memory/1212-56-0x0000000000C10000-0x0000000000D15000-memory.dmp

                memory/1212-57-0x0000000000400000-0x0000000000958000-memory.dmp

                memory/1340-73-0x00000000025D0000-0x00000000035B5000-memory.dmp

                memory/1340-63-0x0000000001E50000-0x0000000001FB1000-memory.dmp

                memory/1340-64-0x0000000002100000-0x0000000002101000-memory.dmp

                memory/1692-103-0x0000000002360000-0x0000000002FAA000-memory.dmp

                memory/1692-105-0x0000000002360000-0x0000000002FAA000-memory.dmp

                memory/1692-104-0x0000000002360000-0x0000000002FAA000-memory.dmp

                memory/1764-95-0x00000000024E1000-0x00000000024E2000-memory.dmp

                memory/1764-96-0x00000000024E2000-0x00000000024E4000-memory.dmp

                memory/1764-94-0x00000000024E0000-0x00000000024E1000-memory.dmp

                memory/1892-88-0x0000000002560000-0x0000000003545000-memory.dmp

                memory/1892-89-0x00000000001F0000-0x00000000001F1000-memory.dmp

                memory/1892-84-0x0000000002160000-0x0000000002161000-memory.dmp

                memory/1892-82-0x0000000001DB0000-0x0000000001F11000-memory.dmp

                memory/1928-86-0x000007FEFB931000-0x000007FEFB933000-memory.dmp

                memory/1928-90-0x00000000000F0000-0x0000000000290000-memory.dmp

                memory/1928-91-0x0000000001E90000-0x0000000002042000-memory.dmp