Analysis

  • max time kernel
    151s
  • max time network
    152s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    09/08/2021, 11:30

General

  • Target
    b9603bc9734cc8f5a19cea4c717970ab.exe
  • Size 602KB
  • Sample210809-1bbkpv6sgs
  • SHA256 ee868c21339f7b0d6c1fcbe27769b583d3a17b11dc5f39862defef456a4a8df5
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • cryptbot

C2
  • lysvay12.top

  • moroer01.top

Attributes
  • payload_url

    http://damuxa01.top/download.php?file=lv.exe

Extracted

Family
  • danabot

Version
  • 1987

Botnet
  • 4

C2
  • 142.11.244.124:443

  • 142.11.206.50:443

Attributes
  • embedded_hash

    6AD9FE4F9E491E785665E0D144F61DAB

rsa_privkey.plain
rsa_pubkey.plain

Signatures

  • CryptBot

    A C++ stealer distributed widely in bundle with other software.

  • CryptBot Payload 2 IoCs
  • Danabot

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

  • Danabot Loader Component 5 IoCs
  • suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile

    suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile

  • Blocklisted process makes network request 6 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 7 IoCs
  • Drops startup file 1 IoCs
  • Loads dropped DLL 4 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Checks installed software on the system 1 TTPs

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

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 4 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 28 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Modifies registry class 1 IoCs
  • Modifies system certificate store 2 TTPs 4 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 11 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 60 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b9603bc9734cc8f5a19cea4c717970ab.exe
    "C:\Users\Admin\AppData\Local\Temp\b9603bc9734cc8f5a19cea4c717970ab.exe"
    1⤵
    • Checks processor information in registry
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:4444
    • C:\Users\Admin\AppData\Local\Temp\Filett.exe
      "C:\Users\Admin\AppData\Local\Temp\Filett.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of WriteProcessMemory
      PID:4036
      • C:\Users\Admin\AppData\Local\Temp\namoi\vn.exe
        "C:\Users\Admin\AppData\Local\Temp\namoi\vn.exe"
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Suspicious use of WriteProcessMemory
        PID:4164
        • C:\Windows\SysWOW64\dllhost.exe
          dllhost.exe
          4⤵
            PID:4248
          • C:\Windows\SysWOW64\cmd.exe
            cmd /c cmd < Ritorni.docm
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:4256
            • C:\Windows\SysWOW64\cmd.exe
              cmd
              5⤵
              • Suspicious use of WriteProcessMemory
              PID:636
              • C:\Windows\SysWOW64\findstr.exe
                findstr /V /R "^LodkRlBSRrPGkJmvfGWoQmKxYYFITWniLRlmgrMsXQEOYkwWHltAFiajnWhTFSYVFIVzmZojUEkZUVvMWJqISXBDmYw$" Esistenza.docm
                6⤵
                  PID:4340
                • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Voto.exe.com
                  Voto.exe.com f
                  6⤵
                  • Executes dropped EXE
                  • Suspicious use of WriteProcessMemory
                  PID:908
                  • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Voto.exe.com
                    C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Voto.exe.com f
                    7⤵
                    • Executes dropped EXE
                    • Checks processor information in registry
                    • Modifies registry class
                    • Suspicious use of WriteProcessMemory
                    PID:1136
                    • C:\Users\Admin\AppData\Local\Temp\rdrosxjsiu.exe
                      "C:\Users\Admin\AppData\Local\Temp\rdrosxjsiu.exe"
                      8⤵
                      • Executes dropped EXE
                      • Suspicious use of WriteProcessMemory
                      PID:2704
                      • C:\Windows\SysWOW64\rundll32.exe
                        C:\Windows\system32\rundll32.exe C:\Users\Admin\AppData\Local\Temp\RDROSX~1.TMP,S C:\Users\Admin\AppData\Local\Temp\RDROSX~1.EXE
                        9⤵
                        • Blocklisted process makes network request
                        • Loads dropped DLL
                        • Drops file in Program Files directory
                        • Suspicious use of WriteProcessMemory
                        PID:4416
                        • C:\Windows\SysWOW64\RUNDLL32.EXE
                          C:\Windows\system32\RUNDLL32.EXE C:\Users\Admin\AppData\Local\Temp\RDROSX~1.TMP,iFcxYzhHR1N2
                          10⤵
                          • Blocklisted process makes network request
                          • Loads dropped DLL
                          • Suspicious use of SetThreadContext
                          • Checks processor information in registry
                          • Modifies system certificate store
                          • Suspicious behavior: EnumeratesProcesses
                          • Suspicious use of AdjustPrivilegeToken
                          • Suspicious use of WriteProcessMemory
                          PID:2240
                          • C:\Windows\system32\rundll32.exe
                            C:\Windows\system32\rundll32.exe C:\Windows\system32\shell32.dll,#61 31801
                            11⤵
                              PID:4368
                            • 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\tmp57FF.tmp.ps1"
                              11⤵
                              • Suspicious behavior: EnumeratesProcesses
                              • Suspicious use of AdjustPrivilegeToken
                              PID:3880
                      • C:\Windows\SysWOW64\WScript.exe
                        "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\ydslyofivi.vbs"
                        8⤵
                          PID:3020
                        • C:\Windows\SysWOW64\WScript.exe
                          "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\ywdjlhx.vbs"
                          8⤵
                          • Blocklisted process makes network request
                          • Modifies system certificate store
                          PID:188
                    • C:\Windows\SysWOW64\PING.EXE
                      ping localhost -n 30
                      6⤵
                      • Runs ping.exe
                      PID:836
              • C:\Users\Admin\AppData\Local\Temp\namoi\four.exe
                "C:\Users\Admin\AppData\Local\Temp\namoi\four.exe"
                3⤵
                • Executes dropped EXE
                • Drops startup file
                • Suspicious use of WriteProcessMemory
                PID:4168
                • C:\Users\Admin\AppData\Roaming\Smart Clock\SmartClock.exe
                  "C:\Users\Admin\AppData\Roaming\Smart Clock\SmartClock.exe"
                  4⤵
                  • Executes dropped EXE
                  • Suspicious behavior: AddClipboardFormatListener
                  PID:1264
            • C:\Windows\SysWOW64\cmd.exe
              "C:\Windows\system32\cmd.exe" /c rd /s /q C:\Users\Admin\AppData\Local\Temp\oX6qXILwAx & timeout 2 & del /f /q "C:\Users\Admin\AppData\Local\Temp\b9603bc9734cc8f5a19cea4c717970ab.exe"
              2⤵
              • Suspicious use of WriteProcessMemory
              PID:4116
              • C:\Windows\SysWOW64\timeout.exe
                timeout 2
                3⤵
                • Delays execution with timeout.exe
                PID:4224

          Network

                MITRE ATT&CK Enterprise v6

                Replay Monitor

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                Downloads

                memory/1136-156-0x0000000000CB0000-0x0000000000CB1000-memory.dmp

                memory/1264-153-0x0000000004870000-0x0000000004896000-memory.dmp

                memory/1264-154-0x0000000000400000-0x0000000002C7A000-memory.dmp

                memory/2240-181-0x0000000005C00000-0x0000000005C01000-memory.dmp

                memory/2240-190-0x0000000005D40000-0x0000000005D41000-memory.dmp

                memory/2240-186-0x0000000004740000-0x00000000059D6000-memory.dmp

                memory/2240-178-0x0000000004160000-0x00000000042BE000-memory.dmp

                memory/2704-166-0x0000000000400000-0x0000000002D4E000-memory.dmp

                memory/2704-165-0x0000000004B80000-0x0000000004C7E000-memory.dmp

                memory/3880-198-0x0000000006CF0000-0x0000000006CF1000-memory.dmp

                memory/3880-208-0x0000000008330000-0x0000000008331000-memory.dmp

                memory/3880-206-0x0000000008220000-0x0000000008221000-memory.dmp

                memory/3880-205-0x0000000007F00000-0x0000000007F01000-memory.dmp

                memory/3880-204-0x0000000007980000-0x0000000007981000-memory.dmp

                memory/3880-203-0x0000000007B20000-0x0000000007B21000-memory.dmp

                memory/3880-202-0x0000000007AB0000-0x0000000007AB1000-memory.dmp

                memory/3880-201-0x0000000007A40000-0x0000000007A41000-memory.dmp

                memory/3880-200-0x0000000007130000-0x0000000007131000-memory.dmp

                memory/3880-199-0x0000000006CF2000-0x0000000006CF3000-memory.dmp

                memory/3880-197-0x0000000007330000-0x0000000007331000-memory.dmp

                memory/3880-196-0x0000000004720000-0x0000000004721000-memory.dmp

                memory/4168-151-0x0000000002C80000-0x0000000002DCA000-memory.dmp

                memory/4168-152-0x0000000000400000-0x0000000002C7A000-memory.dmp

                memory/4368-191-0x0000000000130000-0x00000000002D0000-memory.dmp

                memory/4368-192-0x00000288DD470000-0x00000288DD621000-memory.dmp

                memory/4416-180-0x0000000005130000-0x00000000063C6000-memory.dmp

                memory/4444-114-0x00000000049A0000-0x0000000004A40000-memory.dmp

                memory/4444-115-0x0000000000400000-0x0000000002CCC000-memory.dmp