Analysis

  • max time kernel
    117s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    16-12-2024 00:31

General

  • Target

    b748daf40cc41cfa71d1f296c7404b991ebc56f79495facabbc1ed644634477dN.dll

  • Size

    120KB

  • MD5

    fa44432dc294962084453521b54676e0

  • SHA1

    e6fbbba2bce31f557b4c047ee3722a43f05056af

  • SHA256

    b748daf40cc41cfa71d1f296c7404b991ebc56f79495facabbc1ed644634477d

  • SHA512

    a3c279399ba0971a96e8e1686afc0679502bc35e199e56c4aec2ab618ca2ef08a26503f0d10ea699d24e488bca333319d5ea4966a79ab0ae3ce1e3e8a2f1f0bc

  • SSDEEP

    3072:YVop30YoRn5K25IZBQWB59dMAOAqjwK2Ganh/:PyYwn5K25gBQWBjdjj

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 15 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 45 IoCs
  • Suspicious use of WriteProcessMemory 38 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Windows\system32\taskhost.exe
    "taskhost.exe"
    1⤵
      PID:1060
    • C:\Windows\system32\Dwm.exe
      "C:\Windows\system32\Dwm.exe"
      1⤵
        PID:1116
      • C:\Windows\Explorer.EXE
        C:\Windows\Explorer.EXE
        1⤵
          PID:1148
          • C:\Windows\system32\rundll32.exe
            rundll32.exe C:\Users\Admin\AppData\Local\Temp\b748daf40cc41cfa71d1f296c7404b991ebc56f79495facabbc1ed644634477dN.dll,#1
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:2824
            • C:\Windows\SysWOW64\rundll32.exe
              rundll32.exe C:\Users\Admin\AppData\Local\Temp\b748daf40cc41cfa71d1f296c7404b991ebc56f79495facabbc1ed644634477dN.dll,#1
              3⤵
              • Loads dropped DLL
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:2716
              • C:\Users\Admin\AppData\Local\Temp\f765e84.exe
                C:\Users\Admin\AppData\Local\Temp\f765e84.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:3060
              • C:\Users\Admin\AppData\Local\Temp\f766049.exe
                C:\Users\Admin\AppData\Local\Temp\f766049.exe
                4⤵
                • Modifies firewall policy service
                • UAC bypass
                • Windows security bypass
                • Executes dropped EXE
                • Windows security modification
                • Checks whether UAC is enabled
                • 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:1408
              • C:\Users\Admin\AppData\Local\Temp\f767d2b.exe
                C:\Users\Admin\AppData\Local\Temp\f767d2b.exe
                4⤵
                • Executes dropped EXE
                PID:2036
        • C:\Windows\system32\DllHost.exe
          C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
          1⤵
            PID:2040

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          • C:\Windows\SYSTEM.INI

            Filesize

            257B

            MD5

            5a2c105cf362cae8a84a1439bd53cd98

            SHA1

            4503185edc6a0afadf43c552a6a1dde9c8b0cd0b

            SHA256

            80ea650460ca3301bbdd80786eb912b1e4a9a6865fa68c34bc9ad910e54207ea

            SHA512

            b6b2c04f6931ccbe4eef104de3e130c51b8a2c86d8cb856c668d3233c4b09e249219fb503b242f6720bf280f4d284307c0271a240cfdcc061f8002933463241b

          • \Users\Admin\AppData\Local\Temp\f765e84.exe

            Filesize

            97KB

            MD5

            64fdadbecf49d7bc77aa0227395e4472

            SHA1

            5fcdd0361973917ce5fead02d66f98436abcb01c

            SHA256

            168eeb0d39747f2127d4396669b5ede300f3de56e7ad931e38bdefcbf6e8107a

            SHA512

            f66efca4f9d85d0ad6c4e41ef1a65904c6e919c176de38030c5a7bf3137f4a2b5978d3c1bf5e5dd60bf2b222f716db5d3fe359e1cace70312ac173446080a3f5

          • memory/1060-28-0x00000000002A0000-0x00000000002A2000-memory.dmp

            Filesize

            8KB

          • memory/1408-139-0x0000000000260000-0x0000000000262000-memory.dmp

            Filesize

            8KB

          • memory/1408-184-0x0000000000A00000-0x0000000001ABA000-memory.dmp

            Filesize

            16.7MB

          • memory/1408-111-0x0000000000260000-0x0000000000262000-memory.dmp

            Filesize

            8KB

          • memory/1408-202-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/1408-201-0x0000000000A00000-0x0000000001ABA000-memory.dmp

            Filesize

            16.7MB

          • memory/1408-102-0x0000000000270000-0x0000000000271000-memory.dmp

            Filesize

            4KB

          • memory/2036-108-0x0000000000260000-0x0000000000262000-memory.dmp

            Filesize

            8KB

          • memory/2036-206-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2036-107-0x00000000002B0000-0x00000000002B1000-memory.dmp

            Filesize

            4KB

          • memory/2036-110-0x0000000000260000-0x0000000000262000-memory.dmp

            Filesize

            8KB

          • memory/2036-87-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2716-13-0x0000000000210000-0x0000000000222000-memory.dmp

            Filesize

            72KB

          • memory/2716-62-0x0000000000290000-0x00000000002A2000-memory.dmp

            Filesize

            72KB

          • memory/2716-63-0x0000000000270000-0x0000000000272000-memory.dmp

            Filesize

            8KB

          • memory/2716-50-0x0000000000280000-0x0000000000281000-memory.dmp

            Filesize

            4KB

          • memory/2716-41-0x0000000000280000-0x0000000000281000-memory.dmp

            Filesize

            4KB

          • memory/2716-40-0x0000000000270000-0x0000000000272000-memory.dmp

            Filesize

            8KB

          • memory/2716-60-0x0000000000270000-0x0000000000272000-memory.dmp

            Filesize

            8KB

          • memory/2716-85-0x00000000006E0000-0x00000000006F2000-memory.dmp

            Filesize

            72KB

          • memory/2716-7-0x0000000000210000-0x0000000000222000-memory.dmp

            Filesize

            72KB

          • memory/2716-0-0x0000000010000000-0x0000000010020000-memory.dmp

            Filesize

            128KB

          • memory/2716-1-0x0000000010000000-0x0000000010020000-memory.dmp

            Filesize

            128KB

          • memory/2716-3-0x0000000010000000-0x0000000010020000-memory.dmp

            Filesize

            128KB

          • memory/2716-2-0x0000000010000000-0x0000000010020000-memory.dmp

            Filesize

            128KB

          • memory/3060-17-0x00000000005E0000-0x000000000169A000-memory.dmp

            Filesize

            16.7MB

          • memory/3060-65-0x00000000005E0000-0x000000000169A000-memory.dmp

            Filesize

            16.7MB

          • memory/3060-66-0x00000000005E0000-0x000000000169A000-memory.dmp

            Filesize

            16.7MB

          • memory/3060-67-0x00000000005E0000-0x000000000169A000-memory.dmp

            Filesize

            16.7MB

          • memory/3060-68-0x00000000005E0000-0x000000000169A000-memory.dmp

            Filesize

            16.7MB

          • memory/3060-70-0x00000000005E0000-0x000000000169A000-memory.dmp

            Filesize

            16.7MB

          • memory/3060-71-0x00000000005E0000-0x000000000169A000-memory.dmp

            Filesize

            16.7MB

          • memory/3060-72-0x00000000005E0000-0x000000000169A000-memory.dmp

            Filesize

            16.7MB

          • memory/3060-73-0x00000000005E0000-0x000000000169A000-memory.dmp

            Filesize

            16.7MB

          • memory/3060-74-0x00000000005E0000-0x000000000169A000-memory.dmp

            Filesize

            16.7MB

          • memory/3060-24-0x00000000005E0000-0x000000000169A000-memory.dmp

            Filesize

            16.7MB

          • memory/3060-26-0x00000000005E0000-0x000000000169A000-memory.dmp

            Filesize

            16.7MB

          • memory/3060-90-0x00000000005E0000-0x000000000169A000-memory.dmp

            Filesize

            16.7MB

          • memory/3060-91-0x00000000005E0000-0x000000000169A000-memory.dmp

            Filesize

            16.7MB

          • memory/3060-18-0x00000000005E0000-0x000000000169A000-memory.dmp

            Filesize

            16.7MB

          • memory/3060-19-0x00000000005E0000-0x000000000169A000-memory.dmp

            Filesize

            16.7MB

          • memory/3060-20-0x00000000005E0000-0x000000000169A000-memory.dmp

            Filesize

            16.7MB

          • memory/3060-22-0x00000000005E0000-0x000000000169A000-memory.dmp

            Filesize

            16.7MB

          • memory/3060-51-0x0000000003D20000-0x0000000003D21000-memory.dmp

            Filesize

            4KB

          • memory/3060-23-0x00000000005E0000-0x000000000169A000-memory.dmp

            Filesize

            16.7MB

          • memory/3060-160-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/3060-161-0x00000000005E0000-0x000000000169A000-memory.dmp

            Filesize

            16.7MB

          • memory/3060-61-0x0000000002F80000-0x0000000002F82000-memory.dmp

            Filesize

            8KB

          • memory/3060-25-0x00000000005E0000-0x000000000169A000-memory.dmp

            Filesize

            16.7MB

          • memory/3060-53-0x0000000002F80000-0x0000000002F82000-memory.dmp

            Filesize

            8KB

          • memory/3060-21-0x00000000005E0000-0x000000000169A000-memory.dmp

            Filesize

            16.7MB

          • memory/3060-14-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB