Analysis

  • max time kernel
    122s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    21/04/2024, 00:34

General

  • Target

    916f2131c8aafa0af34913cf38db4998f7065fb8f612eb6462bca0dbb7df15e0.dll

  • Size

    120KB

  • MD5

    4871afdf1ffe3919b4142b15cbc770af

  • SHA1

    352297ccd6f29d85f4c0f0aab6c53ccacbbb192a

  • SHA256

    916f2131c8aafa0af34913cf38db4998f7065fb8f612eb6462bca0dbb7df15e0

  • SHA512

    2c9ada0a95f21d32da865ac0bb408495dc3819f600e44ffa4404daf7e6a37cda4064a7cec3c0c68e6ac5173f7d927f955297285a144cf51122baf20e64742030

  • SSDEEP

    3072:Z9ys/Urv0M9w1ibE3FlWI8rP18xYK1BZ9Cq:S04bo8z18xL9Cq

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
  • Detects executables packed with Sality Polymorphic Code Generator or Simple Poly Engine or Sality 25 IoCs
  • UPX dump on OEP (original entry point) 30 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 13 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\taskhost.exe
    "taskhost.exe"
    1⤵
      PID:1120
    • C:\Windows\system32\Dwm.exe
      "C:\Windows\system32\Dwm.exe"
      1⤵
        PID:1176
      • C:\Windows\Explorer.EXE
        C:\Windows\Explorer.EXE
        1⤵
          PID:1248
          • C:\Windows\system32\rundll32.exe
            rundll32.exe C:\Users\Admin\AppData\Local\Temp\916f2131c8aafa0af34913cf38db4998f7065fb8f612eb6462bca0dbb7df15e0.dll,#1
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:2844
            • C:\Windows\SysWOW64\rundll32.exe
              rundll32.exe C:\Users\Admin\AppData\Local\Temp\916f2131c8aafa0af34913cf38db4998f7065fb8f612eb6462bca0dbb7df15e0.dll,#1
              3⤵
              • Loads dropped DLL
              • Suspicious use of WriteProcessMemory
              PID:2008
              • C:\Users\Admin\AppData\Local\Temp\f761dbe.exe
                C:\Users\Admin\AppData\Local\Temp\f761dbe.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:2380
              • C:\Users\Admin\AppData\Local\Temp\f7622bd.exe
                C:\Users\Admin\AppData\Local\Temp\f7622bd.exe
                4⤵
                • Executes dropped EXE
                PID:2448
              • C:\Users\Admin\AppData\Local\Temp\f763987.exe
                C:\Users\Admin\AppData\Local\Temp\f763987.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:2956
        • C:\Windows\system32\DllHost.exe
          C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
          1⤵
            PID:1072

          Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

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                Downloads

                • C:\Users\Admin\AppData\Local\Temp\f761dbe.exe

                  Filesize

                  97KB

                  MD5

                  2e679b924f5b228daeba6b3bd9f23abd

                  SHA1

                  e3ff41a7347dc07f5bf35b03a42311cef78020fb

                  SHA256

                  2da4738ef4d33761d49ee4d4018cdbfc513be0b254f329fa03254f999c1db72b

                  SHA512

                  edeede83b3c65415584f2490977af16dcffc36d07a4ad4bec51856ecc98a2c72bccc2013cf8cd314ee4be392981f2a17215526fbde91e61ab55ece4a1364b139

                • C:\Windows\SYSTEM.INI

                  Filesize

                  257B

                  MD5

                  fe08e31006488ce8af22ceb5d86ccaba

                  SHA1

                  47f6293aa5348833e23cf6b9c15fe5b784913bbe

                  SHA256

                  559b39af32f981985ed0c47fecbc56be04fcfa9eaaa2d5884a3304b3dea8437b

                  SHA512

                  81befbda3ffa5cb5480fe1b3ab0fe3ba73bfc97dae407e7d77d8e44e44781d10cb78465c01b2fef808f6e6b9e09639f88e903911905d31ee6c68ab6f86a5282a

                • memory/1120-16-0x0000000000490000-0x0000000000492000-memory.dmp

                  Filesize

                  8KB

                • memory/2008-79-0x0000000000180000-0x0000000000182000-memory.dmp

                  Filesize

                  8KB

                • memory/2008-8-0x0000000000180000-0x0000000000192000-memory.dmp

                  Filesize

                  72KB

                • memory/2008-10-0x0000000000180000-0x0000000000192000-memory.dmp

                  Filesize

                  72KB

                • memory/2008-74-0x00000000001B0000-0x00000000001B2000-memory.dmp

                  Filesize

                  8KB

                • memory/2008-1-0x0000000010000000-0x0000000010020000-memory.dmp

                  Filesize

                  128KB

                • memory/2008-35-0x00000000001C0000-0x00000000001C1000-memory.dmp

                  Filesize

                  4KB

                • memory/2008-80-0x0000000000240000-0x0000000000252000-memory.dmp

                  Filesize

                  72KB

                • memory/2008-77-0x0000000000240000-0x0000000000252000-memory.dmp

                  Filesize

                  72KB

                • memory/2008-47-0x0000000000240000-0x0000000000252000-memory.dmp

                  Filesize

                  72KB

                • memory/2008-45-0x0000000000240000-0x0000000000252000-memory.dmp

                  Filesize

                  72KB

                • memory/2008-27-0x00000000001B0000-0x00000000001B2000-memory.dmp

                  Filesize

                  8KB

                • memory/2008-29-0x00000000001C0000-0x00000000001C1000-memory.dmp

                  Filesize

                  4KB

                • memory/2008-32-0x00000000001B0000-0x00000000001B2000-memory.dmp

                  Filesize

                  8KB

                • memory/2380-61-0x00000000006A0000-0x000000000175A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2380-103-0x00000000003F0000-0x00000000003F2000-memory.dmp

                  Filesize

                  8KB

                • memory/2380-22-0x00000000006A0000-0x000000000175A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2380-14-0x00000000006A0000-0x000000000175A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2380-46-0x00000000006A0000-0x000000000175A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2380-59-0x0000000001820000-0x0000000001821000-memory.dmp

                  Filesize

                  4KB

                • memory/2380-58-0x00000000003F0000-0x00000000003F2000-memory.dmp

                  Filesize

                  8KB

                • memory/2380-34-0x00000000006A0000-0x000000000175A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2380-28-0x00000000006A0000-0x000000000175A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2380-60-0x00000000006A0000-0x000000000175A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2380-11-0x0000000000400000-0x0000000000412000-memory.dmp

                  Filesize

                  72KB

                • memory/2380-62-0x00000000006A0000-0x000000000175A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2380-63-0x00000000006A0000-0x000000000175A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2380-64-0x00000000006A0000-0x000000000175A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2380-19-0x00000000006A0000-0x000000000175A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2380-66-0x00000000006A0000-0x000000000175A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2380-17-0x00000000006A0000-0x000000000175A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2380-15-0x00000000006A0000-0x000000000175A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2380-12-0x00000000006A0000-0x000000000175A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2380-141-0x0000000000400000-0x0000000000412000-memory.dmp

                  Filesize

                  72KB

                • memory/2380-82-0x00000000006A0000-0x000000000175A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2380-83-0x00000000006A0000-0x000000000175A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2380-85-0x00000000006A0000-0x000000000175A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2380-87-0x00000000006A0000-0x000000000175A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2380-140-0x00000000006A0000-0x000000000175A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2380-106-0x00000000006A0000-0x000000000175A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2380-104-0x00000000006A0000-0x000000000175A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2380-25-0x00000000006A0000-0x000000000175A000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2448-97-0x00000000002B0000-0x00000000002B1000-memory.dmp

                  Filesize

                  4KB

                • memory/2448-96-0x0000000000260000-0x0000000000262000-memory.dmp

                  Filesize

                  8KB

                • memory/2448-49-0x0000000000400000-0x0000000000412000-memory.dmp

                  Filesize

                  72KB

                • memory/2956-102-0x0000000000230000-0x0000000000231000-memory.dmp

                  Filesize

                  4KB

                • memory/2956-101-0x0000000000220000-0x0000000000222000-memory.dmp

                  Filesize

                  8KB

                • memory/2956-81-0x0000000000400000-0x0000000000412000-memory.dmp

                  Filesize

                  72KB

                • memory/2956-148-0x0000000000930000-0x00000000019EA000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2956-187-0x0000000000930000-0x00000000019EA000-memory.dmp

                  Filesize

                  16.7MB

                • memory/2956-188-0x0000000000400000-0x0000000000412000-memory.dmp

                  Filesize

                  72KB