Analysis

  • max time kernel
    122s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    06-02-2025 10:43

General

  • Target

    2025-02-06_0c742a38601997d1b0a754cd4f8ef057_bkransomware.exe

  • Size

    2.1MB

  • MD5

    0c742a38601997d1b0a754cd4f8ef057

  • SHA1

    9a090ef87bac51eccc6e808d3d5adc62e09284fd

  • SHA256

    54426b5f566e7ff36678cd6bbd88b8a860461710ebe9b60d6ea02851654256f6

  • SHA512

    c1cbb759e5f451d13db687d42e9e9b0453b02d43b5a50263695381f3369197c7e7631de1aaa52a287470b851fb05e6bee40e6a731d69f42000b05b5d41bbb1c2

  • SSDEEP

    49152:5S5skDzci5R/DP7nmGarmFDM87CL9++86TIOSTXXG:Qvz55R/DzmGarmpvC5++86TIOSLG

Malware Config

Extracted

Family

sality

C2

http://89.119.67.154/testo5/

http://kukutrustnet777.info/home.gif

http://kukutrustnet888.info/home.gif

http://kukutrustnet987.info/home.gif

http://www.klkjwre9fqwieluoi.info/

http://kukutrustnet777888.info/

Signatures

  • Modifies firewall policy service 3 TTPs 3 IoCs
  • Sality

    Sality is backdoor written in C++, first discovered in 2003.

  • Sality family
  • UAC bypass 3 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 6 IoCs
  • Windows security modification 2 TTPs 7 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 21 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops autorun.inf file 1 TTPs 2 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • UPX packed file 27 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops file in Program Files directory 9 IoCs
  • Drops file in Windows directory 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 13 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 23 IoCs
  • Suspicious use of AdjustPrivilegeToken 9 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Windows\system32\wininit.exe
    wininit.exe
    1⤵
      PID:380
      • C:\Windows\system32\services.exe
        C:\Windows\system32\services.exe
        2⤵
          PID:472
          • C:\Windows\system32\svchost.exe
            C:\Windows\system32\svchost.exe -k DcomLaunch
            3⤵
              PID:608
              • C:\Windows\system32\DllHost.exe
                C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                4⤵
                  PID:1440
                • C:\Windows\system32\wbem\wmiprvse.exe
                  C:\Windows\system32\wbem\wmiprvse.exe
                  4⤵
                    PID:548
                • C:\Windows\system32\svchost.exe
                  C:\Windows\system32\svchost.exe -k RPCSS
                  3⤵
                    PID:688
                  • C:\Windows\System32\svchost.exe
                    C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted
                    3⤵
                      PID:748
                    • C:\Windows\System32\svchost.exe
                      C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted
                      3⤵
                        PID:824
                        • C:\Windows\system32\Dwm.exe
                          "C:\Windows\system32\Dwm.exe"
                          4⤵
                            PID:1160
                        • C:\Windows\system32\svchost.exe
                          C:\Windows\system32\svchost.exe -k netsvcs
                          3⤵
                            PID:860
                          • C:\Windows\system32\svchost.exe
                            C:\Windows\system32\svchost.exe -k LocalService
                            3⤵
                              PID:972
                            • C:\Windows\system32\svchost.exe
                              C:\Windows\system32\svchost.exe -k NetworkService
                              3⤵
                                PID:280
                              • C:\Windows\System32\spoolsv.exe
                                C:\Windows\System32\spoolsv.exe
                                3⤵
                                  PID:292
                                • C:\Windows\system32\svchost.exe
                                  C:\Windows\system32\svchost.exe -k LocalServiceNoNetwork
                                  3⤵
                                    PID:1068
                                  • C:\Windows\system32\taskhost.exe
                                    "taskhost.exe"
                                    3⤵
                                      PID:1112
                                    • C:\Program Files\Common Files\Microsoft Shared\OfficeSoftwareProtectionPlatform\OSPPSVC.EXE
                                      "C:\Program Files\Common Files\Microsoft Shared\OfficeSoftwareProtectionPlatform\OSPPSVC.EXE"
                                      3⤵
                                        PID:1728
                                      • C:\Windows\system32\svchost.exe
                                        C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation
                                        3⤵
                                          PID:2288
                                        • C:\Windows\system32\sppsvc.exe
                                          C:\Windows\system32\sppsvc.exe
                                          3⤵
                                            PID:2208
                                        • C:\Windows\system32\lsass.exe
                                          C:\Windows\system32\lsass.exe
                                          2⤵
                                            PID:484
                                          • C:\Windows\system32\lsm.exe
                                            C:\Windows\system32\lsm.exe
                                            2⤵
                                              PID:492
                                          • C:\Windows\system32\csrss.exe
                                            %SystemRoot%\system32\csrss.exe ObjectDirectory=\Windows SharedSection=1024,20480,768 Windows=On SubSystemType=Windows ServerDll=basesrv,1 ServerDll=winsrv:UserServerDllInitialization,3 ServerDll=winsrv:ConServerDllInitialization,2 ServerDll=sxssrv,4 ProfileControl=Off MaxRequestThreads=16
                                            1⤵
                                              PID:388
                                            • C:\Windows\system32\winlogon.exe
                                              winlogon.exe
                                              1⤵
                                                PID:428
                                              • C:\Windows\Explorer.EXE
                                                C:\Windows\Explorer.EXE
                                                1⤵
                                                  PID:1200
                                                  • C:\Users\Admin\AppData\Local\Temp\2025-02-06_0c742a38601997d1b0a754cd4f8ef057_bkransomware.exe
                                                    "C:\Users\Admin\AppData\Local\Temp\2025-02-06_0c742a38601997d1b0a754cd4f8ef057_bkransomware.exe"
                                                    2⤵
                                                    • Modifies firewall policy service
                                                    • UAC bypass
                                                    • Windows security bypass
                                                    • Windows security modification
                                                    • Checks whether UAC is enabled
                                                    • Enumerates connected drives
                                                    • Drops autorun.inf file
                                                    • Drops file in Program Files directory
                                                    • Drops file in Windows directory
                                                    • System Location Discovery: System Language Discovery
                                                    • Suspicious behavior: EnumeratesProcesses
                                                    • Suspicious behavior: GetForegroundWindowSpam
                                                    • Suspicious behavior: MapViewOfSection
                                                    • Suspicious use of AdjustPrivilegeToken
                                                    • Suspicious use of SetWindowsHookEx
                                                    • Suspicious use of WriteProcessMemory
                                                    • System policy modification
                                                    PID:3060

                                                Network

                                                MITRE ATT&CK Enterprise v15

                                                Replay Monitor

                                                Loading Replay Monitor...

                                                Downloads

                                                • C:\Users\Admin\AppData\Local\Temp\xnif.exe

                                                  Filesize

                                                  1024KB

                                                  MD5

                                                  70275617c292fd99702d9aa2a208d998

                                                  SHA1

                                                  e7c4fec76dc63cce4aeb9b2debb83101eb229898

                                                  SHA256

                                                  308ae0c0118c9e3b928cb43d26863e5629b706870a4e11bfb0daab7a941b4b26

                                                  SHA512

                                                  b6a52382f364878194ef8b6c465e4ee8438f36d01c8c4c45a0c837baf12a92fdd8894ad8deae4fc6425225b0e5a1b2bc24c41b80c59fa334343ff5ce6b98b83d

                                                • C:\svhff.exe

                                                  Filesize

                                                  127KB

                                                  MD5

                                                  661cb40ae487c0cb55325e9aca7aaf96

                                                  SHA1

                                                  86212110ad3ecec836d69d34a4f9c2af302ddf11

                                                  SHA256

                                                  e6efa7edf7a3a1d24e155e9065d66fe466ab9a900bf77fae8c6be2deaddebd62

                                                  SHA512

                                                  4e209cff1e721d45997ad6b9003d9e6615ba47fadb5a31b6eeb692b92c3a92bc193d32f900cf61543c6775ff446318dd38e6dbce0ae0ef49c3f249ae14577c37

                                                • memory/1112-14-0x0000000001F10000-0x0000000001F12000-memory.dmp

                                                  Filesize

                                                  8KB

                                                • memory/3060-29-0x0000000002490000-0x000000000351E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/3060-64-0x0000000002490000-0x000000000351E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/3060-26-0x00000000006A0000-0x00000000006A2000-memory.dmp

                                                  Filesize

                                                  8KB

                                                • memory/3060-25-0x00000000006A0000-0x00000000006A2000-memory.dmp

                                                  Filesize

                                                  8KB

                                                • memory/3060-8-0x0000000002490000-0x000000000351E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/3060-24-0x0000000000940000-0x0000000000941000-memory.dmp

                                                  Filesize

                                                  4KB

                                                • memory/3060-30-0x0000000000400000-0x000000000061F000-memory.dmp

                                                  Filesize

                                                  2.1MB

                                                • memory/3060-21-0x00000000006A0000-0x00000000006A2000-memory.dmp

                                                  Filesize

                                                  8KB

                                                • memory/3060-10-0x0000000002490000-0x000000000351E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/3060-7-0x0000000002490000-0x000000000351E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/3060-5-0x0000000002490000-0x000000000351E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/3060-13-0x0000000077740000-0x0000000077741000-memory.dmp

                                                  Filesize

                                                  4KB

                                                • memory/3060-12-0x000000007773F000-0x0000000077740000-memory.dmp

                                                  Filesize

                                                  4KB

                                                • memory/3060-4-0x0000000002490000-0x000000000351E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/3060-11-0x0000000002490000-0x000000000351E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/3060-28-0x0000000002490000-0x000000000351E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/3060-27-0x0000000002490000-0x000000000351E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/3060-32-0x0000000002490000-0x000000000351E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/3060-22-0x0000000000940000-0x0000000000941000-memory.dmp

                                                  Filesize

                                                  4KB

                                                • memory/3060-9-0x0000000002490000-0x000000000351E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/3060-1-0x0000000000400000-0x000000000061F000-memory.dmp

                                                  Filesize

                                                  2.1MB

                                                • memory/3060-34-0x0000000002490000-0x000000000351E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/3060-35-0x0000000002490000-0x000000000351E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/3060-36-0x00000000006A0000-0x00000000006A2000-memory.dmp

                                                  Filesize

                                                  8KB

                                                • memory/3060-38-0x0000000002490000-0x000000000351E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/3060-50-0x0000000004880000-0x0000000004882000-memory.dmp

                                                  Filesize

                                                  8KB

                                                • memory/3060-49-0x0000000004890000-0x0000000004891000-memory.dmp

                                                  Filesize

                                                  4KB

                                                • memory/3060-51-0x0000000004880000-0x0000000004882000-memory.dmp

                                                  Filesize

                                                  8KB

                                                • memory/3060-52-0x0000000002490000-0x000000000351E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/3060-54-0x0000000002490000-0x000000000351E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/3060-56-0x0000000002490000-0x000000000351E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/3060-57-0x0000000002490000-0x000000000351E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/3060-59-0x0000000002490000-0x000000000351E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/3060-61-0x0000000002490000-0x000000000351E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/3060-31-0x0000000002490000-0x000000000351E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/3060-66-0x0000000002490000-0x000000000351E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/3060-68-0x0000000002490000-0x000000000351E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/3060-69-0x0000000002490000-0x000000000351E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/3060-6-0x0000000002490000-0x000000000351E000-memory.dmp

                                                  Filesize

                                                  16.6MB

                                                • memory/3060-2-0x0000000002490000-0x000000000351E000-memory.dmp

                                                  Filesize

                                                  16.6MB