Resubmissions

12-11-2021 18:04

211112-wnzb8aahhm 10

19-11-2020 10:08

201119-rhwlt38jrx 10

18-11-2020 17:26

201118-htd4fq29va 10

Analysis

  • max time kernel
    377s
  • max time network
    458s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    19-11-2020 10:08

General

  • Target

    ForceOp 2.8.7 - By RaiSence.exe

Score
10/10

Malware Config

Signatures

  • DcRat

    DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

  • Suspicious use of NtCreateProcessExOtherParentProcess ⋅ 1 IoCs
  • Executes dropped EXE ⋅ 2 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.

  • Program crash ⋅ 1 IoCs
  • Creates scheduled task(s) ⋅ 1 TTPs 6 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Modifies registry class ⋅ 1 IoCs
  • Suspicious behavior: EnumeratesProcesses ⋅ 16 IoCs
  • Suspicious use of AdjustPrivilegeToken ⋅ 3 IoCs
  • Suspicious use of WriteProcessMemory ⋅ 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ForceOp 2.8.7 - By RaiSence.exe
    "C:\Users\Admin\AppData\Local\Temp\ForceOp 2.8.7 - By RaiSence.exe"
    Modifies registry class
    Suspicious use of WriteProcessMemory
    PID:3276
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\intofont\1Udi0TDz635jTrMWFNrE4kqnOIuYIi.vbe"
      Suspicious use of WriteProcessMemory
      PID:2540
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\intofont\xLg6v1j1ZJy5DZ1pz826KfZq2BmfLM.bat" "
        Suspicious use of WriteProcessMemory
        PID:1148
        • C:\intofont\wincommon.exe
          "C:\intofont\wincommon.exe"
          Executes dropped EXE
          Drops file in Program Files directory
          Suspicious behavior: EnumeratesProcesses
          Suspicious use of AdjustPrivilegeToken
          Suspicious use of WriteProcessMemory
          PID:3772
          • C:\Windows\SYSTEM32\schtasks.exe
            "schtasks" /create /tn "svchost" /sc ONLOGON /tr "'C:\odt\svchost.exe'" /rl HIGHEST /f
            Creates scheduled task(s)
            PID:3612
          • C:\Windows\SYSTEM32\schtasks.exe
            "schtasks" /create /tn "smss" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\smss.exe'" /rl HIGHEST /f
            Creates scheduled task(s)
            PID:2136
          • C:\Windows\SYSTEM32\schtasks.exe
            "schtasks" /create /tn "svchost" /sc ONLOGON /tr "'C:\intofont\svchost.exe'" /rl HIGHEST /f
            Creates scheduled task(s)
            PID:1136
          • C:\Windows\SYSTEM32\schtasks.exe
            "schtasks" /create /tn "svchost" /sc ONLOGON /tr "'C:\Program Files\Microsoft Office 15\ClientX64\svchost.exe'" /rl HIGHEST /f
            Creates scheduled task(s)
            PID:3648
          • C:\Windows\SYSTEM32\schtasks.exe
            "schtasks" /create /tn "System" /sc ONLOGON /tr "'C:\Program Files (x86)\Mozilla Maintenance Service\logs\System.exe'" /rl HIGHEST /f
            Creates scheduled task(s)
            PID:2084
          • C:\Windows\SYSTEM32\schtasks.exe
            "schtasks" /create /tn "wscript" /sc ONLOGON /tr "'C:\PerfLogs\wscript.exe'" /rl HIGHEST /f
            Creates scheduled task(s)
            PID:1508
          • C:\PerfLogs\wscript.exe
            "C:\PerfLogs\wscript.exe"
            Executes dropped EXE
            Suspicious behavior: EnumeratesProcesses
            Suspicious use of AdjustPrivilegeToken
            PID:1888
            • C:\Windows\system32\WerFault.exe
              C:\Windows\system32\WerFault.exe -u -p 1888 -s 1796
              Suspicious use of NtCreateProcessExOtherParentProcess
              Program crash
              Suspicious behavior: EnumeratesProcesses
              Suspicious use of AdjustPrivilegeToken
              PID:3636
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\intofont\msg.vbs"
      PID:3412

Network

MITRE ATT&CK Matrix

Collection

    Command and Control

      Credential Access

        Defense Evasion

          Execution

            Exfiltration

              Impact

                Initial Access

                  Lateral Movement

                    Persistence

                    Privilege Escalation

                      Replay Monitor

                      00:00 00:00

                      Downloads

                      • C:\PerfLogs\wscript.exe
                        MD5

                        9134637118b2a4485fb46d439133749b

                        SHA1

                        25b60dba36e432f53f68603797d50b9c6cc127ce

                        SHA256

                        5dca1a463f5308018c477503a5179f45c468245dd4a84732ee824bd704521acc

                        SHA512

                        a6db12e3349c034051940b15adbb530ba34152ccbe41afc210dad7e64331221b3dbae1563a2f3b79a43d12da54eaeac3f30cfb708ebc75ab6a9dfc30a8f1e601

                      • C:\PerfLogs\wscript.exe
                        MD5

                        9134637118b2a4485fb46d439133749b

                        SHA1

                        25b60dba36e432f53f68603797d50b9c6cc127ce

                        SHA256

                        5dca1a463f5308018c477503a5179f45c468245dd4a84732ee824bd704521acc

                        SHA512

                        a6db12e3349c034051940b15adbb530ba34152ccbe41afc210dad7e64331221b3dbae1563a2f3b79a43d12da54eaeac3f30cfb708ebc75ab6a9dfc30a8f1e601

                      • C:\intofont\1Udi0TDz635jTrMWFNrE4kqnOIuYIi.vbe
                        MD5

                        35f693ab095c33d4c62230d69ff6b43f

                        SHA1

                        19e8b126076b5e5d8e8b97f3757ad99357915bf4

                        SHA256

                        1a3b550ae14c360fd9600e52924706a356290939317f3a32b35bfa97b5dbc163

                        SHA512

                        1e2599c7b10a1fc5c004d7d68c487028d5d2d6a1102af0150ea0c15663819dac42e3a55a769cc532cf45f9f037cece3fcdc2820f2bfbe8439fd0a3d5a16bb4df

                      • C:\intofont\MOS
                        MD5

                        cb456215c3333db0551bd0788bc258c7

                        SHA1

                        a0b861f6121344b631992c8252fa8748835e4df6

                        SHA256

                        7e7b3a01539b5dd82108fe0dc455a76294708bb782f8f7590b06f0975fdf93c1

                        SHA512

                        796ccc0f1fc4a990fe3c50f54a2d009e6ddb8e4e062ac1839a2c2c1e6f120311dad66fa86211137cb38cce27a99614085702d5fe9b6f3effc5dd1db0ad879448

                      • C:\intofont\msg.vbs
                        MD5

                        01c71ea2d98437129936261c48403132

                        SHA1

                        dc689fb68a3e7e09a334e7a37c0d10d0641af1a6

                        SHA256

                        0401f2dd76d5ed6f90c82b72e1e7a122ef127bedbaf717532c4bba26d43a0061

                        SHA512

                        a668d4216a50ccc699221dd902d8b0f864e44368dc7474fa5659a739154d4e769b85d49b60a73affb8fba7628e7210b0f8106d5652006d1bbba67083513e65d9

                      • C:\intofont\wincommon.exe
                        MD5

                        9134637118b2a4485fb46d439133749b

                        SHA1

                        25b60dba36e432f53f68603797d50b9c6cc127ce

                        SHA256

                        5dca1a463f5308018c477503a5179f45c468245dd4a84732ee824bd704521acc

                        SHA512

                        a6db12e3349c034051940b15adbb530ba34152ccbe41afc210dad7e64331221b3dbae1563a2f3b79a43d12da54eaeac3f30cfb708ebc75ab6a9dfc30a8f1e601

                      • C:\intofont\wincommon.exe
                        MD5

                        9134637118b2a4485fb46d439133749b

                        SHA1

                        25b60dba36e432f53f68603797d50b9c6cc127ce

                        SHA256

                        5dca1a463f5308018c477503a5179f45c468245dd4a84732ee824bd704521acc

                        SHA512

                        a6db12e3349c034051940b15adbb530ba34152ccbe41afc210dad7e64331221b3dbae1563a2f3b79a43d12da54eaeac3f30cfb708ebc75ab6a9dfc30a8f1e601

                      • C:\intofont\xLg6v1j1ZJy5DZ1pz826KfZq2BmfLM.bat
                        MD5

                        9fe442702fb57ffec2b831c3949a74e0

                        SHA1

                        e285d89241ef0aeeeb50f65e09a741baf399cb1f

                        SHA256

                        d50176a5de27bc9b4c52ebb4e30ec4cbf1e6a79eda4d83a013b220f489a5bcb9

                        SHA512

                        548a8df7f0d9278f84eca35bf40638a4572cb625050f7a0684ee14b2117df8307101d8f9383c3fcab23fcf656c21f69db3f4509a037307ed6658ff4c063b4eab

                      • memory/1136-28-0x0000000000000000-mapping.dmp
                      • memory/1148-18-0x0000000000000000-mapping.dmp
                      • memory/1508-31-0x0000000000000000-mapping.dmp
                      • memory/1888-47-0x0000000000000000-mapping.dmp
                      • memory/1888-42-0x0000000000000000-mapping.dmp
                      • memory/1888-54-0x0000000000000000-mapping.dmp
                      • memory/1888-53-0x0000000000000000-mapping.dmp
                      • memory/1888-52-0x0000000000000000-mapping.dmp
                      • memory/1888-51-0x0000000000000000-mapping.dmp
                      • memory/1888-50-0x0000000000000000-mapping.dmp
                      • memory/1888-49-0x0000000000000000-mapping.dmp
                      • memory/1888-32-0x0000000000000000-mapping.dmp
                      • memory/1888-46-0x0000000000000000-mapping.dmp
                      • memory/1888-48-0x0000000000000000-mapping.dmp
                      • memory/1888-35-0x00007FFED8500000-0x00007FFED8EEC000-memory.dmp
                      • memory/1888-43-0x0000000000000000-mapping.dmp
                      • memory/1888-41-0x0000000000000000-mapping.dmp
                      • memory/1888-40-0x0000000000000000-mapping.dmp
                      • memory/1888-45-0x0000000000000000-mapping.dmp
                      • memory/1888-44-0x0000000000000000-mapping.dmp
                      • memory/2084-30-0x0000000000000000-mapping.dmp
                      • memory/2136-27-0x0000000000000000-mapping.dmp
                      • memory/2540-0-0x0000000000000000-mapping.dmp
                      • memory/3412-14-0x0000000000000000-mapping.dmp
                      • memory/3612-26-0x0000000000000000-mapping.dmp
                      • memory/3636-39-0x0000017402A40000-0x0000017402A41000-memory.dmp
                      • memory/3636-55-0x0000017403C40000-0x0000017403C41000-memory.dmp
                      • memory/3648-29-0x0000000000000000-mapping.dmp
                      • memory/3772-25-0x000000001B9E0000-0x000000001B9E1000-memory.dmp
                      • memory/3772-19-0x0000000000000000-mapping.dmp
                      • memory/3772-22-0x00007FFED8500000-0x00007FFED8EEC000-memory.dmp
                      • memory/3772-23-0x0000000000C90000-0x0000000000C91000-memory.dmp