Analysis

  • max time kernel
    120s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    26-12-2024 21:47

General

  • Target

    43b9aa4e1f094ee15e45fea246775eb1af2344bdae6b5abf714bc94cc9d4eeef.dll

  • Size

    120KB

  • MD5

    2856c5e1ab8437293308367e4b884800

  • SHA1

    c011369b62d390acb59ac7fb1d08711b6d33e853

  • SHA256

    43b9aa4e1f094ee15e45fea246775eb1af2344bdae6b5abf714bc94cc9d4eeef

  • SHA512

    a3ac512a237fc4496451a53e979396121a9fdc61ad736410f25f9c456b7d8b5dead22f98dadaa6e7c3c7377bb72760d7656613010c9ac20afd8f2b2320d4023b

  • SSDEEP

    3072:GvFsoe/Xi7DkK2ZJaV+DBYOczGQJFjvKMPg/Ir:Gdsoe/icJxBY3hJZy+vr

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

Signatures

  • Modifies firewall policy service 3 TTPs 6 IoCs
  • Sality

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

  • Sality family
  • UAC bypass 3 TTPs 2 IoCs
  • Windows security bypass 2 TTPs 12 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 6 IoCs
  • Windows security modification 2 TTPs 14 IoCs
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Enumerates connected drives 3 TTPs 18 IoCs

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

  • UPX packed file 24 IoCs

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

  • Drops file in Windows directory 3 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 46 IoCs
  • Suspicious use of WriteProcessMemory 38 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Windows\system32\taskhost.exe
    "taskhost.exe"
    1⤵
      PID:1112
    • C:\Windows\system32\Dwm.exe
      "C:\Windows\system32\Dwm.exe"
      1⤵
        PID:1160
      • C:\Windows\Explorer.EXE
        C:\Windows\Explorer.EXE
        1⤵
          PID:1200
          • C:\Windows\system32\rundll32.exe
            rundll32.exe C:\Users\Admin\AppData\Local\Temp\43b9aa4e1f094ee15e45fea246775eb1af2344bdae6b5abf714bc94cc9d4eeef.dll,#1
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:3056
            • C:\Windows\SysWOW64\rundll32.exe
              rundll32.exe C:\Users\Admin\AppData\Local\Temp\43b9aa4e1f094ee15e45fea246775eb1af2344bdae6b5abf714bc94cc9d4eeef.dll,#1
              3⤵
              • Loads dropped DLL
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:3060
              • C:\Users\Admin\AppData\Local\Temp\f769b17.exe
                C:\Users\Admin\AppData\Local\Temp\f769b17.exe
                4⤵
                • Modifies firewall policy service
                • UAC bypass
                • Windows security bypass
                • Executes dropped EXE
                • Windows security modification
                • Checks whether UAC is enabled
                • Enumerates connected drives
                • Drops file in Windows directory
                • System Location Discovery: System Language Discovery
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                • Suspicious use of WriteProcessMemory
                • System policy modification
                PID:1040
              • C:\Users\Admin\AppData\Local\Temp\f769c7e.exe
                C:\Users\Admin\AppData\Local\Temp\f769c7e.exe
                4⤵
                • Executes dropped EXE
                PID:2888
              • C:\Users\Admin\AppData\Local\Temp\f76bd27.exe
                C:\Users\Admin\AppData\Local\Temp\f76bd27.exe
                4⤵
                • Modifies firewall policy service
                • UAC bypass
                • Windows security bypass
                • Executes dropped EXE
                • Windows security modification
                • Checks whether UAC is enabled
                • Enumerates connected drives
                • Drops file in Windows directory
                • System Location Discovery: System Language Discovery
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                • Suspicious use of WriteProcessMemory
                • System policy modification
                PID:2084
        • C:\Windows\system32\DllHost.exe
          C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
          1⤵
            PID:1440

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          • C:\Windows\SYSTEM.INI

            Filesize

            257B

            MD5

            270715526d26a1e612acd14a7a365851

            SHA1

            6da6cb4ceaf63df626786f7dc0f09cda5136680f

            SHA256

            7b355c5b375c87c42d91ad4e3b5070c0788972e99b10309a24f76cc99ebd7c40

            SHA512

            c30ee4b4d287529aaf7b2266d13eeffedf9cab4ea281a9c9d8c66c1a5b2b52ddad05414223585cfc256b126873cba050c9691ce4f7e4f787f332b6a0c9985cbb

          • \Users\Admin\AppData\Local\Temp\f769b17.exe

            Filesize

            97KB

            MD5

            80b0d26afe33aaf26334d6b557ad5c6d

            SHA1

            7dc12b0586c7b8ba95aa24aec520034401d9b05f

            SHA256

            f063a2749b976bc0aa04d1abc53a1cf3fc4c1397aa76257f26f32e3d25fb7efc

            SHA512

            dbd98bb6fe174445ab3db0a280e12a094b4b2594acbd2bcd6b2333ff694d589b2ef6088e7a193a8e298b0ae35cb9506568f5547a5497df83b06f490075326349

          • memory/1040-89-0x00000000005F0000-0x00000000016AA000-memory.dmp

            Filesize

            16.7MB

          • memory/1040-25-0x00000000005F0000-0x00000000016AA000-memory.dmp

            Filesize

            16.7MB

          • memory/1040-65-0x00000000005F0000-0x00000000016AA000-memory.dmp

            Filesize

            16.7MB

          • memory/1040-14-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/1040-159-0x00000000005F0000-0x00000000016AA000-memory.dmp

            Filesize

            16.7MB

          • memory/1040-66-0x00000000005F0000-0x00000000016AA000-memory.dmp

            Filesize

            16.7MB

          • memory/1040-15-0x00000000005F0000-0x00000000016AA000-memory.dmp

            Filesize

            16.7MB

          • memory/1040-20-0x00000000005F0000-0x00000000016AA000-memory.dmp

            Filesize

            16.7MB

          • memory/1040-23-0x00000000005F0000-0x00000000016AA000-memory.dmp

            Filesize

            16.7MB

          • memory/1040-68-0x00000000005F0000-0x00000000016AA000-memory.dmp

            Filesize

            16.7MB

          • memory/1040-158-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/1040-91-0x00000000005F0000-0x00000000016AA000-memory.dmp

            Filesize

            16.7MB

          • memory/1040-17-0x00000000005F0000-0x00000000016AA000-memory.dmp

            Filesize

            16.7MB

          • memory/1040-21-0x00000000005F0000-0x00000000016AA000-memory.dmp

            Filesize

            16.7MB

          • memory/1040-24-0x00000000005F0000-0x00000000016AA000-memory.dmp

            Filesize

            16.7MB

          • memory/1040-67-0x00000000005F0000-0x00000000016AA000-memory.dmp

            Filesize

            16.7MB

          • memory/1040-59-0x0000000000430000-0x0000000000432000-memory.dmp

            Filesize

            8KB

          • memory/1040-58-0x0000000000430000-0x0000000000432000-memory.dmp

            Filesize

            8KB

          • memory/1040-88-0x0000000000430000-0x0000000000432000-memory.dmp

            Filesize

            8KB

          • memory/1040-74-0x00000000005F0000-0x00000000016AA000-memory.dmp

            Filesize

            16.7MB

          • memory/1040-73-0x00000000005F0000-0x00000000016AA000-memory.dmp

            Filesize

            16.7MB

          • memory/1040-72-0x00000000005F0000-0x00000000016AA000-memory.dmp

            Filesize

            16.7MB

          • memory/1040-22-0x00000000005F0000-0x00000000016AA000-memory.dmp

            Filesize

            16.7MB

          • memory/1040-19-0x00000000005F0000-0x00000000016AA000-memory.dmp

            Filesize

            16.7MB

          • memory/1040-18-0x00000000005F0000-0x00000000016AA000-memory.dmp

            Filesize

            16.7MB

          • memory/1040-71-0x00000000005F0000-0x00000000016AA000-memory.dmp

            Filesize

            16.7MB

          • memory/1040-45-0x00000000004D0000-0x00000000004D1000-memory.dmp

            Filesize

            4KB

          • memory/1040-70-0x00000000005F0000-0x00000000016AA000-memory.dmp

            Filesize

            16.7MB

          • memory/1112-26-0x0000000001F10000-0x0000000001F12000-memory.dmp

            Filesize

            8KB

          • memory/2084-108-0x00000000001F0000-0x00000000001F2000-memory.dmp

            Filesize

            8KB

          • memory/2084-214-0x0000000000910000-0x00000000019CA000-memory.dmp

            Filesize

            16.7MB

          • memory/2084-213-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2084-171-0x0000000000910000-0x00000000019CA000-memory.dmp

            Filesize

            16.7MB

          • memory/2084-106-0x0000000000200000-0x0000000000201000-memory.dmp

            Filesize

            4KB

          • memory/2084-87-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2084-110-0x00000000001F0000-0x00000000001F2000-memory.dmp

            Filesize

            8KB

          • memory/2888-107-0x0000000000220000-0x0000000000222000-memory.dmp

            Filesize

            8KB

          • memory/2888-186-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2888-100-0x00000000003F0000-0x00000000003F1000-memory.dmp

            Filesize

            4KB

          • memory/2888-57-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2888-109-0x0000000000220000-0x0000000000222000-memory.dmp

            Filesize

            8KB

          • memory/3060-56-0x0000000000270000-0x0000000000272000-memory.dmp

            Filesize

            8KB

          • memory/3060-0-0x0000000010000000-0x0000000010020000-memory.dmp

            Filesize

            128KB

          • memory/3060-35-0x0000000000280000-0x0000000000281000-memory.dmp

            Filesize

            4KB

          • memory/3060-2-0x0000000010000000-0x0000000010020000-memory.dmp

            Filesize

            128KB

          • memory/3060-3-0x0000000010000000-0x0000000010020000-memory.dmp

            Filesize

            128KB

          • memory/3060-34-0x0000000000270000-0x0000000000272000-memory.dmp

            Filesize

            8KB

          • memory/3060-12-0x00000000001D0000-0x00000000001E2000-memory.dmp

            Filesize

            72KB

          • memory/3060-13-0x00000000001D0000-0x00000000001E2000-memory.dmp

            Filesize

            72KB

          • memory/3060-55-0x0000000000300000-0x0000000000312000-memory.dmp

            Filesize

            72KB

          • memory/3060-1-0x0000000010000000-0x0000000010020000-memory.dmp

            Filesize

            128KB

          • memory/3060-53-0x0000000000270000-0x0000000000272000-memory.dmp

            Filesize

            8KB

          • memory/3060-44-0x0000000000280000-0x0000000000281000-memory.dmp

            Filesize

            4KB