Analysis

  • max time kernel
    150s
  • max time network
    143s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    07/08/2021, 16:12

General

  • Target
    be7c117282243faa1f8071798ca554e4.exe
  • Size 56KB
  • Sample210807-2f3x482x7s
  • SHA256 b3a8286a131214d6ea89a1ecd19b52fff3f5abc01968f2fd99df48bec9b99817
  • MD5 SHA1 SHA512
Score
10/10

Malware Config

Signatures

  • Process spawned unexpected child process 1 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Loads dropped DLL 1 IoCs
  • Looks up external IP address via web service 1 IoCs

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

  • Drops file in System32 directory 4 IoCs
  • Suspicious use of SetThreadContext 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 2 IoCs

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

  • Modifies data under HKEY_USERS 16 IoCs
  • Modifies registry class 18 IoCs
  • Script User-Agent 1 IoCs

    Uses user-agent string associated with script host/environment.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 26 IoCs
  • Suspicious use of WriteProcessMemory 34 IoCs

Processes

  • c:\windows\system32\svchost.exe
    c:\windows\system32\svchost.exe -k netsvcs -s ProfSvc
    1⤵
      PID:1104
    • c:\windows\system32\svchost.exe
      c:\windows\system32\svchost.exe -k netsvcs -s Browser
      1⤵
        PID:2824
      • c:\windows\system32\svchost.exe
        c:\windows\system32\svchost.exe -k netsvcs -s Winmgmt
        1⤵
        • Modifies registry class
        PID:2788
      • c:\windows\system32\svchost.exe
        c:\windows\system32\svchost.exe -k netsvcs -s WpnService
        1⤵
          PID:2780
        • c:\windows\system32\svchost.exe
          c:\windows\system32\svchost.exe -k netsvcs -s LanmanServer
          1⤵
            PID:2536
          • c:\windows\system32\svchost.exe
            c:\windows\system32\svchost.exe -k netsvcs -s IKEEXT
            1⤵
              PID:2520
            • c:\windows\system32\svchost.exe
              c:\windows\system32\svchost.exe -k netsvcs -s ShellHWDetection
              1⤵
                PID:1948
              • c:\windows\system32\svchost.exe
                c:\windows\system32\svchost.exe -k netsvcs -s SENS
                1⤵
                  PID:1428
                • c:\windows\system32\svchost.exe
                  c:\windows\system32\svchost.exe -k netsvcs -s UserManager
                  1⤵
                    PID:1384
                  • c:\windows\system32\svchost.exe
                    c:\windows\system32\svchost.exe -k netsvcs -s Themes
                    1⤵
                      PID:1192
                    • c:\windows\system32\svchost.exe
                      c:\windows\system32\svchost.exe -k netsvcs -s Schedule
                      1⤵
                        PID:60
                      • c:\windows\system32\svchost.exe
                        c:\windows\system32\svchost.exe -k netsvcs -s gpsvc
                        1⤵
                          PID:1004
                        • C:\Users\Admin\AppData\Local\Temp\be7c117282243faa1f8071798ca554e4.exe
                          "C:\Users\Admin\AppData\Local\Temp\be7c117282243faa1f8071798ca554e4.exe"
                          1⤵
                          • Suspicious use of WriteProcessMemory
                          PID:1016
                          • C:\Users\Admin\AppData\Local\Temp\be7c117282243faa1f8071798ca554e4.exe
                            "C:\Users\Admin\AppData\Local\Temp\be7c117282243faa1f8071798ca554e4.exe" -q
                            2⤵
                              PID:2820
                          • \??\c:\windows\system32\svchost.exe
                            c:\windows\system32\svchost.exe -k netsvcs -s BITS
                            1⤵
                            • Suspicious use of SetThreadContext
                            • Modifies registry class
                            • Suspicious behavior: EnumeratesProcesses
                            • Suspicious use of AdjustPrivilegeToken
                            • Suspicious use of WriteProcessMemory
                            PID:2916
                            • C:\Windows\system32\svchost.exe
                              C:\Windows\system32\svchost.exe -k SystemNetworkService
                              2⤵
                              • Drops file in System32 directory
                              • Checks processor information in registry
                              • Modifies data under HKEY_USERS
                              • Modifies registry class
                              • Suspicious use of AdjustPrivilegeToken
                              • Suspicious use of WriteProcessMemory
                              PID:3784
                          • C:\Windows\system32\rundll32.exe
                            rundll32.exe "C:\Users\Admin\AppData\Local\Temp\sqlite.dll",global
                            1⤵
                            • Process spawned unexpected child process
                            • Suspicious use of WriteProcessMemory
                            PID:3968
                            • C:\Windows\SysWOW64\rundll32.exe
                              rundll32.exe "C:\Users\Admin\AppData\Local\Temp\sqlite.dll",global
                              2⤵
                              • Loads dropped DLL
                              • Modifies registry class
                              • Suspicious behavior: EnumeratesProcesses
                              • Suspicious use of AdjustPrivilegeToken
                              • Suspicious use of WriteProcessMemory
                              PID:3972

                          Network

                                MITRE ATT&CK Enterprise v6

                                Replay Monitor

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                                Downloads

                                memory/60-191-0x000001A633440000-0x000001A6334B4000-memory.dmp

                                memory/60-179-0x000001A6325D0000-0x000001A6325D2000-memory.dmp

                                memory/60-157-0x000001A632E70000-0x000001A632EE4000-memory.dmp

                                memory/60-135-0x000001A6325D0000-0x000001A6325D2000-memory.dmp

                                memory/1004-147-0x000002B9BC760000-0x000002B9BC7D4000-memory.dmp

                                memory/1004-187-0x000002B9BCE40000-0x000002B9BCEB4000-memory.dmp

                                memory/1104-178-0x000001B9CEF90000-0x000001B9CEF92000-memory.dmp

                                memory/1104-190-0x000001B9CFFC0000-0x000001B9D0034000-memory.dmp

                                memory/1104-155-0x000001B9CFF40000-0x000001B9CFFB4000-memory.dmp

                                memory/1104-133-0x000001B9CEF90000-0x000001B9CEF92000-memory.dmp

                                memory/1192-194-0x0000026A33E40000-0x0000026A33EB4000-memory.dmp

                                memory/1192-150-0x0000026A338D0000-0x0000026A33944000-memory.dmp

                                memory/1384-156-0x000001A847960000-0x000001A8479D4000-memory.dmp

                                memory/1384-195-0x000001A847F40000-0x000001A847FB4000-memory.dmp

                                memory/1428-192-0x0000021602CB0000-0x0000021602D24000-memory.dmp

                                memory/1428-158-0x0000021602700000-0x0000021602774000-memory.dmp

                                memory/1948-193-0x000001DA5CE30000-0x000001DA5CEA4000-memory.dmp

                                memory/1948-144-0x000001DA5CD40000-0x000001DA5CDB4000-memory.dmp

                                memory/2520-188-0x0000025AA43A0000-0x0000025AA4414000-memory.dmp

                                memory/2520-129-0x0000025AA3BB0000-0x0000025AA3BB2000-memory.dmp

                                memory/2520-151-0x0000025AA3D70000-0x0000025AA3DE4000-memory.dmp

                                memory/2520-176-0x0000025AA3BB0000-0x0000025AA3BB2000-memory.dmp

                                memory/2536-153-0x00000203BD040000-0x00000203BD0B4000-memory.dmp

                                memory/2536-189-0x00000203BD130000-0x00000203BD1A4000-memory.dmp

                                memory/2780-164-0x0000026565C50000-0x0000026565CC4000-memory.dmp

                                memory/2780-197-0x0000026566210000-0x0000026566284000-memory.dmp

                                memory/2788-163-0x000001581FF50000-0x000001581FFC4000-memory.dmp

                                memory/2788-196-0x0000015820840000-0x00000158208B4000-memory.dmp

                                memory/2824-145-0x00000253EAE00000-0x00000253EAE74000-memory.dmp

                                memory/2824-186-0x00000253EB1C0000-0x00000253EB234000-memory.dmp

                                memory/2916-169-0x00000148B9C70000-0x00000148B9C74000-memory.dmp

                                memory/2916-173-0x00000148B9BB0000-0x00000148B9BB4000-memory.dmp

                                memory/2916-171-0x00000148B9C20000-0x00000148B9C24000-memory.dmp

                                memory/2916-170-0x00000148B9C20000-0x00000148B9C21000-memory.dmp

                                memory/2916-143-0x00000148BA000000-0x00000148BA074000-memory.dmp

                                memory/2916-141-0x00000148B9F40000-0x00000148B9F8D000-memory.dmp

                                memory/3784-149-0x0000015016DD0000-0x0000015016E44000-memory.dmp

                                memory/3784-167-0x0000015016BE0000-0x0000015016BFB000-memory.dmp

                                memory/3784-168-0x0000015019500000-0x0000015019606000-memory.dmp

                                memory/3972-139-0x0000000004620000-0x000000000467F000-memory.dmp

                                memory/3972-138-0x000000000450F000-0x0000000004610000-memory.dmp