Analysis

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

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    06-02-2025 10:56

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 28 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 24 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 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:612
              • C:\Windows\system32\DllHost.exe
                C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                4⤵
                  PID:1272
                • C:\Windows\system32\wbem\wmiprvse.exe
                  C:\Windows\system32\wbem\wmiprvse.exe
                  4⤵
                    PID:1684
                • 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:764
                    • 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:1184
                        • C:\Windows\system32\svchost.exe
                          C:\Windows\system32\svchost.exe -k netsvcs
                          3⤵
                            PID:852
                            • \\?\C:\Windows\system32\wbem\WMIADAP.EXE
                              wmiadap.exe /F /T /R
                              4⤵
                                PID:2276
                            • C:\Windows\system32\svchost.exe
                              C:\Windows\system32\svchost.exe -k LocalService
                              3⤵
                                PID:976
                              • C:\Windows\system32\svchost.exe
                                C:\Windows\system32\svchost.exe -k NetworkService
                                3⤵
                                  PID:284
                                • C:\Windows\System32\spoolsv.exe
                                  C:\Windows\System32\spoolsv.exe
                                  3⤵
                                    PID:492
                                  • C:\Windows\system32\svchost.exe
                                    C:\Windows\system32\svchost.exe -k LocalServiceNoNetwork
                                    3⤵
                                      PID:1040
                                    • C:\Windows\system32\taskhost.exe
                                      "taskhost.exe"
                                      3⤵
                                        PID:1120
                                      • C:\Program Files\Common Files\Microsoft Shared\OfficeSoftwareProtectionPlatform\OSPPSVC.EXE
                                        "C:\Program Files\Common Files\Microsoft Shared\OfficeSoftwareProtectionPlatform\OSPPSVC.EXE"
                                        3⤵
                                          PID:1532
                                        • C:\Windows\system32\svchost.exe
                                          C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation
                                          3⤵
                                            PID:1728
                                          • C:\Windows\system32\sppsvc.exe
                                            C:\Windows\system32\sppsvc.exe
                                            3⤵
                                              PID:2448
                                          • C:\Windows\system32\lsass.exe
                                            C:\Windows\system32\lsass.exe
                                            2⤵
                                              PID:488
                                            • C:\Windows\system32\lsm.exe
                                              C:\Windows\system32\lsm.exe
                                              2⤵
                                                PID:496
                                            • 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:1260
                                                    • 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:2404

                                                  Network

                                                  MITRE ATT&CK Enterprise v15

                                                  Replay Monitor

                                                  Loading Replay Monitor...

                                                  Downloads

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

                                                    Filesize

                                                    101KB

                                                    MD5

                                                    4a4500f576cb22ca1378592227b9c337

                                                    SHA1

                                                    0c3b51e87745bd4dd40972647791c722d37114ef

                                                    SHA256

                                                    560ec11fcdddcf094899255d2af1c2ff0f20fb78fa068c46497f11339e4e29b0

                                                    SHA512

                                                    ef7ec5c989c9e45234f803f9d094a6e025e9d509022e89590827243864415f7820767b316bc3e688dc8a1ed9f2fba0079003f688a24c667c5d7e282a824703fd

                                                  • memory/1120-14-0x0000000000150000-0x0000000000152000-memory.dmp

                                                    Filesize

                                                    8KB

                                                  • memory/2404-29-0x0000000002600000-0x000000000368E000-memory.dmp

                                                    Filesize

                                                    16.6MB

                                                  • memory/2404-24-0x0000000000730000-0x0000000000731000-memory.dmp

                                                    Filesize

                                                    4KB

                                                  • memory/2404-3-0x0000000002600000-0x000000000368E000-memory.dmp

                                                    Filesize

                                                    16.6MB

                                                  • memory/2404-31-0x0000000002600000-0x000000000368E000-memory.dmp

                                                    Filesize

                                                    16.6MB

                                                  • memory/2404-11-0x0000000002600000-0x000000000368E000-memory.dmp

                                                    Filesize

                                                    16.6MB

                                                  • memory/2404-34-0x0000000002600000-0x000000000368E000-memory.dmp

                                                    Filesize

                                                    16.6MB

                                                  • memory/2404-25-0x00000000003F0000-0x00000000003F2000-memory.dmp

                                                    Filesize

                                                    8KB

                                                  • memory/2404-32-0x0000000002600000-0x000000000368E000-memory.dmp

                                                    Filesize

                                                    16.6MB

                                                  • memory/2404-22-0x0000000000730000-0x0000000000731000-memory.dmp

                                                    Filesize

                                                    4KB

                                                  • memory/2404-21-0x00000000003F0000-0x00000000003F2000-memory.dmp

                                                    Filesize

                                                    8KB

                                                  • memory/2404-12-0x00000000772BF000-0x00000000772C0000-memory.dmp

                                                    Filesize

                                                    4KB

                                                  • memory/2404-9-0x0000000002600000-0x000000000368E000-memory.dmp

                                                    Filesize

                                                    16.6MB

                                                  • memory/2404-7-0x0000000002600000-0x000000000368E000-memory.dmp

                                                    Filesize

                                                    16.6MB

                                                  • memory/2404-5-0x0000000002600000-0x000000000368E000-memory.dmp

                                                    Filesize

                                                    16.6MB

                                                  • memory/2404-6-0x0000000002600000-0x000000000368E000-memory.dmp

                                                    Filesize

                                                    16.6MB

                                                  • memory/2404-8-0x0000000002600000-0x000000000368E000-memory.dmp

                                                    Filesize

                                                    16.6MB

                                                  • memory/2404-27-0x0000000002600000-0x000000000368E000-memory.dmp

                                                    Filesize

                                                    16.6MB

                                                  • memory/2404-28-0x0000000002600000-0x000000000368E000-memory.dmp

                                                    Filesize

                                                    16.6MB

                                                  • memory/2404-0-0x0000000000400000-0x000000000061F000-memory.dmp

                                                    Filesize

                                                    2.1MB

                                                  • memory/2404-30-0x0000000000400000-0x000000000061F000-memory.dmp

                                                    Filesize

                                                    2.1MB

                                                  • memory/2404-10-0x0000000002600000-0x000000000368E000-memory.dmp

                                                    Filesize

                                                    16.6MB

                                                  • memory/2404-13-0x00000000772C0000-0x00000000772C1000-memory.dmp

                                                    Filesize

                                                    4KB

                                                  • memory/2404-26-0x00000000003F0000-0x00000000003F2000-memory.dmp

                                                    Filesize

                                                    8KB

                                                  • memory/2404-35-0x0000000002600000-0x000000000368E000-memory.dmp

                                                    Filesize

                                                    16.6MB

                                                  • memory/2404-36-0x00000000003F0000-0x00000000003F2000-memory.dmp

                                                    Filesize

                                                    8KB

                                                  • memory/2404-37-0x0000000002600000-0x000000000368E000-memory.dmp

                                                    Filesize

                                                    16.6MB

                                                  • memory/2404-51-0x0000000005830000-0x0000000005832000-memory.dmp

                                                    Filesize

                                                    8KB

                                                  • memory/2404-50-0x0000000005830000-0x0000000005832000-memory.dmp

                                                    Filesize

                                                    8KB

                                                  • memory/2404-49-0x0000000005880000-0x0000000005881000-memory.dmp

                                                    Filesize

                                                    4KB

                                                  • memory/2404-52-0x0000000002600000-0x000000000368E000-memory.dmp

                                                    Filesize

                                                    16.6MB

                                                  • memory/2404-54-0x0000000002600000-0x000000000368E000-memory.dmp

                                                    Filesize

                                                    16.6MB

                                                  • memory/2404-56-0x0000000002600000-0x000000000368E000-memory.dmp

                                                    Filesize

                                                    16.6MB

                                                  • memory/2404-58-0x0000000002600000-0x000000000368E000-memory.dmp

                                                    Filesize

                                                    16.6MB

                                                  • memory/2404-59-0x0000000002600000-0x000000000368E000-memory.dmp

                                                    Filesize

                                                    16.6MB

                                                  • memory/2404-62-0x0000000002600000-0x000000000368E000-memory.dmp

                                                    Filesize

                                                    16.6MB

                                                  • memory/2404-63-0x0000000002600000-0x000000000368E000-memory.dmp

                                                    Filesize

                                                    16.6MB

                                                  • memory/2404-66-0x0000000002600000-0x000000000368E000-memory.dmp

                                                    Filesize

                                                    16.6MB

                                                  • memory/2404-4-0x0000000002600000-0x000000000368E000-memory.dmp

                                                    Filesize

                                                    16.6MB

                                                  • memory/2404-80-0x0000000002600000-0x000000000368E000-memory.dmp

                                                    Filesize

                                                    16.6MB

                                                  • memory/2404-82-0x0000000002600000-0x000000000368E000-memory.dmp

                                                    Filesize

                                                    16.6MB

                                                  • memory/2404-83-0x0000000002600000-0x000000000368E000-memory.dmp

                                                    Filesize

                                                    16.6MB