Resubmissions

25-04-2021 09:42

210425-v9mttlcxke 10

25-04-2021 08:59

210425-1d89vxfyln 10

25-04-2021 07:37

210425-b8smdccdwe 10

25-04-2021 06:55

210425-1csfnkw57n 10

24-04-2021 20:32

210424-x7kp9rrf4x 10

Analysis

  • max time kernel
    1799s
  • max time network
    1800s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    24-04-2021 20:32

General

  • Target

    keygen-step-4 — копия.exe

  • Size

    4.6MB

  • MD5

    563107b1df2a00f4ec868acd9e08a205

  • SHA1

    9cb9c91d66292f5317aa50d92e38834861e9c9b7

  • SHA256

    bf2bd257dde4921ce83c7c1303fafe7f9f81e53c2775d3c373ced482b22eb8a9

  • SHA512

    99a8d247fa435c4cd95be7bc64c7dd6e382371f3a3c160aac3995fd705e4fd3f6622c23784a4ae3457c87536347d15eda3f08aa616450778a99376df540d74d1

Score
8/10

Malware Config

Signatures

  • Downloads MZ/PE file
  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 2 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 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 3 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 13 IoCs
  • Modifies registry class 14 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 38 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 57 IoCs

Processes

  • c:\windows\system32\svchost.exe
    c:\windows\system32\svchost.exe -k netsvcs -s ShellHWDetection
    1⤵
      PID:1952
    • c:\windows\system32\svchost.exe
      c:\windows\system32\svchost.exe -k netsvcs -s Browser
      1⤵
        PID:2840
      • c:\windows\system32\svchost.exe
        c:\windows\system32\svchost.exe -k netsvcs -s WpnService
        1⤵
          PID:2696
        • c:\windows\system32\svchost.exe
          c:\windows\system32\svchost.exe -k netsvcs -s Winmgmt
          1⤵
            PID:2680
          • c:\windows\system32\svchost.exe
            c:\windows\system32\svchost.exe -k netsvcs -s LanmanServer
            1⤵
              PID:2440
            • c:\windows\system32\svchost.exe
              c:\windows\system32\svchost.exe -k netsvcs -s IKEEXT
              1⤵
                PID:2432
              • c:\windows\system32\svchost.exe
                c:\windows\system32\svchost.exe -k netsvcs -s SENS
                1⤵
                • Modifies registry class
                PID:1376
              • c:\windows\system32\svchost.exe
                c:\windows\system32\svchost.exe -k netsvcs -s UserManager
                1⤵
                  PID:1332
                • c:\windows\system32\svchost.exe
                  c:\windows\system32\svchost.exe -k netsvcs -s Themes
                  1⤵
                    PID:1184
                  • c:\windows\system32\svchost.exe
                    c:\windows\system32\svchost.exe -k netsvcs -s ProfSvc
                    1⤵
                      PID:1088
                    • c:\windows\system32\svchost.exe
                      c:\windows\system32\svchost.exe -k netsvcs -s Schedule
                      1⤵
                        PID:1028
                      • c:\windows\system32\svchost.exe
                        c:\windows\system32\svchost.exe -k netsvcs -s gpsvc
                        1⤵
                        • Modifies registry class
                        PID:340
                      • C:\Users\Admin\AppData\Local\Temp\keygen-step-4 — копия.exe
                        "C:\Users\Admin\AppData\Local\Temp\keygen-step-4 — копия.exe"
                        1⤵
                        • Suspicious use of WriteProcessMemory
                        PID:852
                        • C:\Users\Admin\AppData\Local\Temp\RarSFX0\xiuhuali.exe
                          "C:\Users\Admin\AppData\Local\Temp\RarSFX0\xiuhuali.exe"
                          2⤵
                          • Executes dropped EXE
                          • Drops file in Program Files directory
                          • Suspicious use of SetWindowsHookEx
                          • Suspicious use of WriteProcessMemory
                          PID:2552
                          • C:\Windows\SysWOW64\rundll32.exe
                            "C:\Windows\System32\rundll32.exe" "C:\Program Files\install.dll",install
                            3⤵
                            • Loads dropped DLL
                            • Modifies registry class
                            • Suspicious behavior: EnumeratesProcesses
                            • Suspicious use of AdjustPrivilegeToken
                            • Suspicious use of WriteProcessMemory
                            PID:208
                        • C:\Users\Admin\AppData\Local\Temp\RarSFX0\JoSetp.exe
                          "C:\Users\Admin\AppData\Local\Temp\RarSFX0\JoSetp.exe"
                          2⤵
                          • Executes dropped EXE
                          • Suspicious use of AdjustPrivilegeToken
                          PID:2036
                        • C:\Users\Admin\AppData\Local\Temp\RarSFX0\Install.exe
                          "C:\Users\Admin\AppData\Local\Temp\RarSFX0\Install.exe"
                          2⤵
                          • Executes dropped EXE
                          • Suspicious use of WriteProcessMemory
                          PID:2300
                          • C:\Users\Admin\AppData\Local\Temp\is-7KK40.tmp\Install.tmp
                            "C:\Users\Admin\AppData\Local\Temp\is-7KK40.tmp\Install.tmp" /SL5="$90068,235791,152064,C:\Users\Admin\AppData\Local\Temp\RarSFX0\Install.exe"
                            3⤵
                            • Executes dropped EXE
                            • Loads dropped DLL
                            • Suspicious use of WriteProcessMemory
                            PID:636
                            • C:\Users\Admin\AppData\Local\Temp\is-UJ11Q.tmp\Ultra.exe
                              "C:\Users\Admin\AppData\Local\Temp\is-UJ11Q.tmp\Ultra.exe" /S /UID=burnerch1
                              4⤵
                              • Executes dropped EXE
                              • Suspicious use of WriteProcessMemory
                              PID:2796
                              • C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exe
                                dw20.exe -x -s 1164
                                5⤵
                                • Suspicious behavior: EnumeratesProcesses
                                PID:3904
                      • \??\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:1056
                        • 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:1560

                      Network

                      MITRE ATT&CK Enterprise v6

                      Replay Monitor

                      Loading Replay Monitor...

                      Downloads

                      • memory/208-142-0x0000000000F6B000-0x000000000106C000-memory.dmp

                        Filesize

                        1.0MB

                      • memory/208-144-0x0000000001130000-0x000000000118C000-memory.dmp

                        Filesize

                        368KB

                      • memory/340-227-0x0000022506590000-0x0000022506600000-memory.dmp

                        Filesize

                        448KB

                      • memory/340-169-0x0000022506460000-0x00000225064D0000-memory.dmp

                        Filesize

                        448KB

                      • memory/636-199-0x00000000001F0000-0x00000000001F1000-memory.dmp

                        Filesize

                        4KB

                      • memory/1028-235-0x000001AC37620000-0x000001AC37690000-memory.dmp

                        Filesize

                        448KB

                      • memory/1028-162-0x000001AC37540000-0x000001AC375B0000-memory.dmp

                        Filesize

                        448KB

                      • memory/1056-208-0x0000023176D20000-0x0000023176D21000-memory.dmp

                        Filesize

                        4KB

                      • memory/1056-149-0x0000023177100000-0x0000023177170000-memory.dmp

                        Filesize

                        448KB

                      • memory/1056-207-0x0000023176D70000-0x0000023176D74000-memory.dmp

                        Filesize

                        16KB

                      • memory/1056-132-0x0000023176D60000-0x0000023176D62000-memory.dmp

                        Filesize

                        8KB

                      • memory/1056-209-0x0000023176D20000-0x0000023176D24000-memory.dmp

                        Filesize

                        16KB

                      • memory/1056-211-0x0000023176CB0000-0x0000023176CB4000-memory.dmp

                        Filesize

                        16KB

                      • memory/1088-157-0x00000209B2EA0000-0x00000209B2F10000-memory.dmp

                        Filesize

                        448KB

                      • memory/1088-233-0x00000209B2F70000-0x00000209B2FE0000-memory.dmp

                        Filesize

                        448KB

                      • memory/1184-186-0x0000017215F60000-0x0000017215FD0000-memory.dmp

                        Filesize

                        448KB

                      • memory/1184-241-0x0000017216940000-0x00000172169B0000-memory.dmp

                        Filesize

                        448KB

                      • memory/1332-243-0x000001B9AF720000-0x000001B9AF790000-memory.dmp

                        Filesize

                        448KB

                      • memory/1332-191-0x000001B9AF370000-0x000001B9AF3E0000-memory.dmp

                        Filesize

                        448KB

                      • memory/1376-168-0x00000221099D0000-0x0000022109A40000-memory.dmp

                        Filesize

                        448KB

                      • memory/1376-237-0x0000022109AB0000-0x0000022109B20000-memory.dmp

                        Filesize

                        448KB

                      • memory/1560-167-0x00000265E3540000-0x00000265E35B0000-memory.dmp

                        Filesize

                        448KB

                      • memory/1560-205-0x00000265E5B00000-0x00000265E5BFF000-memory.dmp

                        Filesize

                        1020KB

                      • memory/1952-239-0x000002C721C30000-0x000002C721CA0000-memory.dmp

                        Filesize

                        448KB

                      • memory/1952-173-0x000002C721B40000-0x000002C721BB0000-memory.dmp

                        Filesize

                        448KB

                      • memory/2036-126-0x0000000000480000-0x0000000000481000-memory.dmp

                        Filesize

                        4KB

                      • memory/2036-154-0x0000000000D20000-0x0000000000D22000-memory.dmp

                        Filesize

                        8KB

                      • memory/2036-128-0x0000000000980000-0x0000000000981000-memory.dmp

                        Filesize

                        4KB

                      • memory/2036-129-0x0000000000990000-0x00000000009AC000-memory.dmp

                        Filesize

                        112KB

                      • memory/2036-130-0x00000000009B0000-0x00000000009B1000-memory.dmp

                        Filesize

                        4KB

                      • memory/2300-187-0x0000000000400000-0x000000000042B000-memory.dmp

                        Filesize

                        172KB

                      • memory/2432-143-0x0000019A1AA60000-0x0000019A1AAD0000-memory.dmp

                        Filesize

                        448KB

                      • memory/2432-229-0x0000019A1AC10000-0x0000019A1AC80000-memory.dmp

                        Filesize

                        448KB

                      • memory/2432-261-0x0000019A1AC80000-0x0000019A1ACF0000-memory.dmp

                        Filesize

                        448KB

                      • memory/2440-146-0x000001D4A3A90000-0x000001D4A3ADB000-memory.dmp

                        Filesize

                        300KB

                      • memory/2440-150-0x000001D4A3FB0000-0x000001D4A4020000-memory.dmp

                        Filesize

                        448KB

                      • memory/2440-231-0x000001D4A4090000-0x000001D4A4100000-memory.dmp

                        Filesize

                        448KB

                      • memory/2680-245-0x000002C271E00000-0x000002C271E70000-memory.dmp

                        Filesize

                        448KB

                      • memory/2680-193-0x000002C271BD0000-0x000002C271C40000-memory.dmp

                        Filesize

                        448KB

                      • memory/2696-195-0x000001F4C8F80000-0x000001F4C8FF0000-memory.dmp

                        Filesize

                        448KB

                      • memory/2696-247-0x000001F4C9540000-0x000001F4C95B0000-memory.dmp

                        Filesize

                        448KB

                      • memory/2796-203-0x0000000000D00000-0x0000000000D02000-memory.dmp

                        Filesize

                        8KB

                      • memory/2840-225-0x000001C578B70000-0x000001C578BE0000-memory.dmp

                        Filesize

                        448KB

                      • memory/2840-250-0x000001C579040000-0x000001C5790B0000-memory.dmp

                        Filesize

                        448KB

                      • memory/2840-156-0x000001C578550000-0x000001C5785C0000-memory.dmp

                        Filesize

                        448KB