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Analysis

  • max time kernel
    120s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20231020-en
  • resource tags

    arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system
  • submitted
    21/10/2023, 21:19

General

  • Target

    NEAS.4a923dddfd11cd8fb13976bf59689860.dll

  • Size

    120KB

  • MD5

    4a923dddfd11cd8fb13976bf59689860

  • SHA1

    c8f3f44b427038af1e25f762bff581d2b0185852

  • SHA256

    5cbc78d517dea4c29b3d486e39806e8c96f13c0960f03ba12b9d11f039ac8c85

  • SHA512

    749d07d6bb3a392e9bafcbc9969cd400c53aa08bc6745862cff32d7d3d9fc879a0e3a53237dcdf96dd8305f4a6a6e064fa73e1d1811958138b8010f1e17a6500

  • SSDEEP

    3072:jK7YuNSrkEt4O6C6+IfXMWpLk3oEqvbdFFkbT:u7YuN57C6+mK35oFk

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 2 TTPs 6 IoCs
  • Sality

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

  • UAC bypass 3 TTPs 2 IoCs
  • Windows security bypass 2 TTPs 12 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 6 IoCs
  • UPX packed file 25 IoCs

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

  • Windows security modification 2 TTPs 14 IoCs
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Enumerates connected drives 3 TTPs 10 IoCs

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

  • Drops file in Windows directory 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 41 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Windows\system32\Dwm.exe
    "C:\Windows\system32\Dwm.exe"
    1⤵
      PID:1220
    • C:\Windows\system32\DllHost.exe
      C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
      1⤵
        PID:1400
      • C:\Windows\Explorer.EXE
        C:\Windows\Explorer.EXE
        1⤵
          PID:1276
          • C:\Windows\system32\rundll32.exe
            rundll32.exe C:\Users\Admin\AppData\Local\Temp\NEAS.4a923dddfd11cd8fb13976bf59689860.dll,#1
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:2492
            • C:\Windows\SysWOW64\rundll32.exe
              rundll32.exe C:\Users\Admin\AppData\Local\Temp\NEAS.4a923dddfd11cd8fb13976bf59689860.dll,#1
              3⤵
              • Loads dropped DLL
              • Suspicious use of WriteProcessMemory
              PID:2128
              • C:\Users\Admin\AppData\Local\Temp\f764de2.exe
                C:\Users\Admin\AppData\Local\Temp\f764de2.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
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                • Suspicious use of WriteProcessMemory
                • System policy modification
                PID:2824
              • C:\Users\Admin\AppData\Local\Temp\f765580.exe
                C:\Users\Admin\AppData\Local\Temp\f765580.exe
                4⤵
                • Executes dropped EXE
                PID:2660
              • C:\Users\Admin\AppData\Local\Temp\f7660d5.exe
                C:\Users\Admin\AppData\Local\Temp\f7660d5.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
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                • Suspicious use of WriteProcessMemory
                • System policy modification
                PID:3028
        • C:\Windows\system32\taskhost.exe
          "taskhost.exe"
          1⤵
            PID:1132

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\f764de2.exe

            Filesize

            97KB

            MD5

            e2be15de1dcc87b18b2bb639352ddd94

            SHA1

            27aa240b489b36e964031b3a9899aff7d8affd73

            SHA256

            da90a993753f6a9cdf09ed16447e4c13bc7d51556acdd45f697b8c2f71656e03

            SHA512

            3b04d2594ae248fcdec93e3d311d7b74db3472643a0388c9b94d85714e9afd2f58c9c9c31ee4bb98fc9003c042c6b0366361e874b3aed60aac8c5ec4476e8fc3

          • C:\Users\Admin\AppData\Local\Temp\f764de2.exe

            Filesize

            97KB

            MD5

            e2be15de1dcc87b18b2bb639352ddd94

            SHA1

            27aa240b489b36e964031b3a9899aff7d8affd73

            SHA256

            da90a993753f6a9cdf09ed16447e4c13bc7d51556acdd45f697b8c2f71656e03

            SHA512

            3b04d2594ae248fcdec93e3d311d7b74db3472643a0388c9b94d85714e9afd2f58c9c9c31ee4bb98fc9003c042c6b0366361e874b3aed60aac8c5ec4476e8fc3

          • C:\Users\Admin\AppData\Local\Temp\f765580.exe

            Filesize

            97KB

            MD5

            e2be15de1dcc87b18b2bb639352ddd94

            SHA1

            27aa240b489b36e964031b3a9899aff7d8affd73

            SHA256

            da90a993753f6a9cdf09ed16447e4c13bc7d51556acdd45f697b8c2f71656e03

            SHA512

            3b04d2594ae248fcdec93e3d311d7b74db3472643a0388c9b94d85714e9afd2f58c9c9c31ee4bb98fc9003c042c6b0366361e874b3aed60aac8c5ec4476e8fc3

          • C:\Users\Admin\AppData\Local\Temp\f7660d5.exe

            Filesize

            97KB

            MD5

            e2be15de1dcc87b18b2bb639352ddd94

            SHA1

            27aa240b489b36e964031b3a9899aff7d8affd73

            SHA256

            da90a993753f6a9cdf09ed16447e4c13bc7d51556acdd45f697b8c2f71656e03

            SHA512

            3b04d2594ae248fcdec93e3d311d7b74db3472643a0388c9b94d85714e9afd2f58c9c9c31ee4bb98fc9003c042c6b0366361e874b3aed60aac8c5ec4476e8fc3

          • C:\Windows\SYSTEM.INI

            Filesize

            257B

            MD5

            86176b5b2db9dadfc6d7323562c1f794

            SHA1

            38bcd5d519e0be05b369060af9eaabcacf46e20e

            SHA256

            f27428ff17dfe4ea411c1e4400caf58f99082f82af212a0d689e59f41f45559c

            SHA512

            15bf7be9cd5b3510f1a290b75a7d30488ac2083d96f01a401bec753fbf711b54bbcb94315b1b453ca72951a58a038bcfd4aa13557abff49fae1171fd217255b4

          • \Users\Admin\AppData\Local\Temp\f764de2.exe

            Filesize

            97KB

            MD5

            e2be15de1dcc87b18b2bb639352ddd94

            SHA1

            27aa240b489b36e964031b3a9899aff7d8affd73

            SHA256

            da90a993753f6a9cdf09ed16447e4c13bc7d51556acdd45f697b8c2f71656e03

            SHA512

            3b04d2594ae248fcdec93e3d311d7b74db3472643a0388c9b94d85714e9afd2f58c9c9c31ee4bb98fc9003c042c6b0366361e874b3aed60aac8c5ec4476e8fc3

          • \Users\Admin\AppData\Local\Temp\f764de2.exe

            Filesize

            97KB

            MD5

            e2be15de1dcc87b18b2bb639352ddd94

            SHA1

            27aa240b489b36e964031b3a9899aff7d8affd73

            SHA256

            da90a993753f6a9cdf09ed16447e4c13bc7d51556acdd45f697b8c2f71656e03

            SHA512

            3b04d2594ae248fcdec93e3d311d7b74db3472643a0388c9b94d85714e9afd2f58c9c9c31ee4bb98fc9003c042c6b0366361e874b3aed60aac8c5ec4476e8fc3

          • \Users\Admin\AppData\Local\Temp\f765580.exe

            Filesize

            97KB

            MD5

            e2be15de1dcc87b18b2bb639352ddd94

            SHA1

            27aa240b489b36e964031b3a9899aff7d8affd73

            SHA256

            da90a993753f6a9cdf09ed16447e4c13bc7d51556acdd45f697b8c2f71656e03

            SHA512

            3b04d2594ae248fcdec93e3d311d7b74db3472643a0388c9b94d85714e9afd2f58c9c9c31ee4bb98fc9003c042c6b0366361e874b3aed60aac8c5ec4476e8fc3

          • \Users\Admin\AppData\Local\Temp\f765580.exe

            Filesize

            97KB

            MD5

            e2be15de1dcc87b18b2bb639352ddd94

            SHA1

            27aa240b489b36e964031b3a9899aff7d8affd73

            SHA256

            da90a993753f6a9cdf09ed16447e4c13bc7d51556acdd45f697b8c2f71656e03

            SHA512

            3b04d2594ae248fcdec93e3d311d7b74db3472643a0388c9b94d85714e9afd2f58c9c9c31ee4bb98fc9003c042c6b0366361e874b3aed60aac8c5ec4476e8fc3

          • \Users\Admin\AppData\Local\Temp\f7660d5.exe

            Filesize

            97KB

            MD5

            e2be15de1dcc87b18b2bb639352ddd94

            SHA1

            27aa240b489b36e964031b3a9899aff7d8affd73

            SHA256

            da90a993753f6a9cdf09ed16447e4c13bc7d51556acdd45f697b8c2f71656e03

            SHA512

            3b04d2594ae248fcdec93e3d311d7b74db3472643a0388c9b94d85714e9afd2f58c9c9c31ee4bb98fc9003c042c6b0366361e874b3aed60aac8c5ec4476e8fc3

          • \Users\Admin\AppData\Local\Temp\f7660d5.exe

            Filesize

            97KB

            MD5

            e2be15de1dcc87b18b2bb639352ddd94

            SHA1

            27aa240b489b36e964031b3a9899aff7d8affd73

            SHA256

            da90a993753f6a9cdf09ed16447e4c13bc7d51556acdd45f697b8c2f71656e03

            SHA512

            3b04d2594ae248fcdec93e3d311d7b74db3472643a0388c9b94d85714e9afd2f58c9c9c31ee4bb98fc9003c042c6b0366361e874b3aed60aac8c5ec4476e8fc3

          • memory/1132-18-0x0000000001B80000-0x0000000001B82000-memory.dmp

            Filesize

            8KB

          • memory/2128-32-0x0000000000250000-0x0000000000251000-memory.dmp

            Filesize

            4KB

          • memory/2128-31-0x0000000000240000-0x0000000000242000-memory.dmp

            Filesize

            8KB

          • memory/2128-72-0x00000000002C0000-0x00000000002D2000-memory.dmp

            Filesize

            72KB

          • memory/2128-27-0x0000000000240000-0x0000000000242000-memory.dmp

            Filesize

            8KB

          • memory/2128-28-0x0000000000250000-0x0000000000251000-memory.dmp

            Filesize

            4KB

          • memory/2128-0-0x0000000010000000-0x0000000010020000-memory.dmp

            Filesize

            128KB

          • memory/2128-70-0x0000000000240000-0x0000000000242000-memory.dmp

            Filesize

            8KB

          • memory/2128-4-0x0000000000130000-0x0000000000142000-memory.dmp

            Filesize

            72KB

          • memory/2128-44-0x00000000002C0000-0x00000000002D2000-memory.dmp

            Filesize

            72KB

          • memory/2128-10-0x0000000000130000-0x0000000000142000-memory.dmp

            Filesize

            72KB

          • memory/2128-2-0x0000000010000000-0x0000000010020000-memory.dmp

            Filesize

            128KB

          • memory/2128-47-0x00000000002C0000-0x00000000002D2000-memory.dmp

            Filesize

            72KB

          • memory/2128-75-0x0000000000130000-0x0000000000136000-memory.dmp

            Filesize

            24KB

          • memory/2660-99-0x0000000000200000-0x0000000000201000-memory.dmp

            Filesize

            4KB

          • memory/2660-49-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2660-97-0x00000000001F0000-0x00000000001F2000-memory.dmp

            Filesize

            8KB

          • memory/2660-135-0x00000000001F0000-0x00000000001F2000-memory.dmp

            Filesize

            8KB

          • memory/2824-61-0x0000000000650000-0x000000000170A000-memory.dmp

            Filesize

            16.7MB

          • memory/2824-83-0x0000000000650000-0x000000000170A000-memory.dmp

            Filesize

            16.7MB

          • memory/2824-55-0x00000000003F0000-0x00000000003F2000-memory.dmp

            Filesize

            8KB

          • memory/2824-53-0x0000000000650000-0x000000000170A000-memory.dmp

            Filesize

            16.7MB

          • memory/2824-62-0x0000000000650000-0x000000000170A000-memory.dmp

            Filesize

            16.7MB

          • memory/2824-52-0x0000000000520000-0x0000000000521000-memory.dmp

            Filesize

            4KB

          • memory/2824-50-0x0000000000650000-0x000000000170A000-memory.dmp

            Filesize

            16.7MB

          • memory/2824-45-0x0000000000650000-0x000000000170A000-memory.dmp

            Filesize

            16.7MB

          • memory/2824-29-0x0000000000650000-0x000000000170A000-memory.dmp

            Filesize

            16.7MB

          • memory/2824-25-0x0000000000650000-0x000000000170A000-memory.dmp

            Filesize

            16.7MB

          • memory/2824-21-0x0000000000650000-0x000000000170A000-memory.dmp

            Filesize

            16.7MB

          • memory/2824-12-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2824-77-0x0000000000650000-0x000000000170A000-memory.dmp

            Filesize

            16.7MB

          • memory/2824-78-0x0000000000650000-0x000000000170A000-memory.dmp

            Filesize

            16.7MB

          • memory/2824-79-0x0000000000650000-0x000000000170A000-memory.dmp

            Filesize

            16.7MB

          • memory/2824-81-0x0000000000650000-0x000000000170A000-memory.dmp

            Filesize

            16.7MB

          • memory/2824-82-0x0000000000650000-0x000000000170A000-memory.dmp

            Filesize

            16.7MB

          • memory/2824-56-0x0000000000650000-0x000000000170A000-memory.dmp

            Filesize

            16.7MB

          • memory/2824-85-0x00000000003F0000-0x00000000003F2000-memory.dmp

            Filesize

            8KB

          • memory/2824-86-0x0000000000650000-0x000000000170A000-memory.dmp

            Filesize

            16.7MB

          • memory/2824-17-0x0000000000650000-0x000000000170A000-memory.dmp

            Filesize

            16.7MB

          • memory/2824-141-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2824-140-0x0000000000650000-0x000000000170A000-memory.dmp

            Filesize

            16.7MB

          • memory/2824-14-0x0000000000650000-0x000000000170A000-memory.dmp

            Filesize

            16.7MB

          • memory/2824-16-0x0000000000650000-0x000000000170A000-memory.dmp

            Filesize

            16.7MB

          • memory/2824-106-0x0000000000650000-0x000000000170A000-memory.dmp

            Filesize

            16.7MB

          • memory/2824-108-0x0000000000650000-0x000000000170A000-memory.dmp

            Filesize

            16.7MB

          • memory/2824-110-0x0000000000650000-0x000000000170A000-memory.dmp

            Filesize

            16.7MB

          • memory/3028-105-0x0000000000230000-0x0000000000231000-memory.dmp

            Filesize

            4KB

          • memory/3028-104-0x0000000000220000-0x0000000000222000-memory.dmp

            Filesize

            8KB

          • memory/3028-103-0x0000000000220000-0x0000000000222000-memory.dmp

            Filesize

            8KB

          • memory/3028-143-0x0000000000930000-0x00000000019EA000-memory.dmp

            Filesize

            16.7MB

          • memory/3028-76-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/3028-146-0x0000000000220000-0x0000000000222000-memory.dmp

            Filesize

            8KB

          • memory/3028-177-0x0000000000930000-0x00000000019EA000-memory.dmp

            Filesize

            16.7MB

          • memory/3028-178-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB