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Analysis

  • max time kernel
    83s
  • max time network
    18s
  • platform
    windows7_x64
  • resource
    win7-20240705-en
  • resource tags

    arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
  • submitted
    21/08/2024, 18:52

General

  • Target

    8928cdc1e4cfc9b28ca71b706e637400N.dll

  • Size

    120KB

  • MD5

    8928cdc1e4cfc9b28ca71b706e637400

  • SHA1

    7b5048872972a21e0a2546541f8ed49e1e7afe03

  • SHA256

    34535bc7c7f25f75ff853c9c683e39942f23b00dd9c838ccbc0b39b82905c9bc

  • SHA512

    ecfaabf026985804c1485d5a09891201ef2e45ae269554e4a2e87df3b6beafc87ccf8ec573678b134f36b51ba36d3a53a5b2c5cd329b03619ed4500c923112f6

  • SSDEEP

    3072:2GDA2U3JTYiS+QDLVvsKCHcMwJW1nYqsT+X0:zAr5kbjPVvFCc/WtsTY

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.

  • 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 24 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 12 IoCs

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

  • Drops file in Windows directory 3 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 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 21 IoCs
  • Suspicious use of WriteProcessMemory 34 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Windows\system32\taskhost.exe
    "taskhost.exe"
    1⤵
      PID:1100
    • C:\Windows\system32\Dwm.exe
      "C:\Windows\system32\Dwm.exe"
      1⤵
        PID:1156
      • C:\Windows\Explorer.EXE
        C:\Windows\Explorer.EXE
        1⤵
          PID:1196
          • C:\Windows\system32\rundll32.exe
            rundll32.exe C:\Users\Admin\AppData\Local\Temp\8928cdc1e4cfc9b28ca71b706e637400N.dll,#1
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:2260
            • C:\Windows\SysWOW64\rundll32.exe
              rundll32.exe C:\Users\Admin\AppData\Local\Temp\8928cdc1e4cfc9b28ca71b706e637400N.dll,#1
              3⤵
              • Loads dropped DLL
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:2272
              • C:\Users\Admin\AppData\Local\Temp\f790168.exe
                C:\Users\Admin\AppData\Local\Temp\f790168.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:2264
              • C:\Users\Admin\AppData\Local\Temp\f790609.exe
                C:\Users\Admin\AppData\Local\Temp\f790609.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
                • System policy modification
                PID:2280
              • C:\Users\Admin\AppData\Local\Temp\f791e69.exe
                C:\Users\Admin\AppData\Local\Temp\f791e69.exe
                4⤵
                • Executes dropped EXE
                PID:2736
        • C:\Windows\system32\DllHost.exe
          C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
          1⤵
            PID:1616

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          • C:\Windows\SYSTEM.INI

            Filesize

            257B

            MD5

            22d3366cd04fde93678d24737dc42f33

            SHA1

            2c9ccf6e004ab07471be961d6f9c2b3740e0a8b0

            SHA256

            8603959779f27d7d2e89531c3b0d55e0033bbf666b6f47c385914e4d88cfd8ed

            SHA512

            e50409852cf9bb081717cc2d27ed936cd9241418d28164c20f0d632748001a6bbbd1b19e1b64c2c79c5e1180f85fbea37bad6e1374056f5540e997cdefed2805

          • \Users\Admin\AppData\Local\Temp\f790168.exe

            Filesize

            97KB

            MD5

            7fb3e1c0e790c62589bdb3f09262c1d0

            SHA1

            6086e571d9ed14945ece23e1a0172aa74eb6cc2c

            SHA256

            2dd46bcdcfb88b8b3ab9ac07edccc31db4db1d7779e62bf51a6e80d5a0803481

            SHA512

            6775844668d042b513643231f83d70eeb629db781465d3637866795b8a54d4a6599d7cb6dd76624875348849cea1f95af99831f1831d87bd0e3e199d970d11df

          • memory/1100-25-0x0000000002030000-0x0000000002032000-memory.dmp

            Filesize

            8KB

          • memory/2264-68-0x00000000006C0000-0x000000000177A000-memory.dmp

            Filesize

            16.7MB

          • memory/2264-48-0x00000000004B0000-0x00000000004B1000-memory.dmp

            Filesize

            4KB

          • memory/2264-20-0x00000000006C0000-0x000000000177A000-memory.dmp

            Filesize

            16.7MB

          • memory/2264-22-0x00000000006C0000-0x000000000177A000-memory.dmp

            Filesize

            16.7MB

          • memory/2264-23-0x00000000006C0000-0x000000000177A000-memory.dmp

            Filesize

            16.7MB

          • memory/2264-21-0x00000000006C0000-0x000000000177A000-memory.dmp

            Filesize

            16.7MB

          • memory/2264-18-0x00000000006C0000-0x000000000177A000-memory.dmp

            Filesize

            16.7MB

          • memory/2264-17-0x00000000006C0000-0x000000000177A000-memory.dmp

            Filesize

            16.7MB

          • memory/2264-15-0x00000000006C0000-0x000000000177A000-memory.dmp

            Filesize

            16.7MB

          • memory/2264-51-0x0000000000460000-0x0000000000462000-memory.dmp

            Filesize

            8KB

          • memory/2264-79-0x0000000000460000-0x0000000000462000-memory.dmp

            Filesize

            8KB

          • memory/2264-11-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2264-150-0x00000000006C0000-0x000000000177A000-memory.dmp

            Filesize

            16.7MB

          • memory/2264-69-0x00000000006C0000-0x000000000177A000-memory.dmp

            Filesize

            16.7MB

          • memory/2264-149-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2264-112-0x00000000006C0000-0x000000000177A000-memory.dmp

            Filesize

            16.7MB

          • memory/2264-110-0x00000000006C0000-0x000000000177A000-memory.dmp

            Filesize

            16.7MB

          • memory/2264-19-0x00000000006C0000-0x000000000177A000-memory.dmp

            Filesize

            16.7MB

          • memory/2264-90-0x00000000006C0000-0x000000000177A000-memory.dmp

            Filesize

            16.7MB

          • memory/2264-88-0x00000000006C0000-0x000000000177A000-memory.dmp

            Filesize

            16.7MB

          • memory/2264-87-0x00000000006C0000-0x000000000177A000-memory.dmp

            Filesize

            16.7MB

          • memory/2264-86-0x00000000006C0000-0x000000000177A000-memory.dmp

            Filesize

            16.7MB

          • memory/2264-64-0x00000000006C0000-0x000000000177A000-memory.dmp

            Filesize

            16.7MB

          • memory/2264-65-0x00000000006C0000-0x000000000177A000-memory.dmp

            Filesize

            16.7MB

          • memory/2264-67-0x00000000006C0000-0x000000000177A000-memory.dmp

            Filesize

            16.7MB

          • memory/2264-14-0x00000000006C0000-0x000000000177A000-memory.dmp

            Filesize

            16.7MB

          • memory/2264-16-0x00000000006C0000-0x000000000177A000-memory.dmp

            Filesize

            16.7MB

          • memory/2272-54-0x0000000000440000-0x0000000000452000-memory.dmp

            Filesize

            72KB

          • memory/2272-182-0x0000000000460000-0x0000000000472000-memory.dmp

            Filesize

            72KB

          • memory/2272-84-0x0000000000460000-0x0000000000472000-memory.dmp

            Filesize

            72KB

          • memory/2272-83-0x0000000000170000-0x0000000000172000-memory.dmp

            Filesize

            8KB

          • memory/2272-80-0x0000000000460000-0x0000000000472000-memory.dmp

            Filesize

            72KB

          • memory/2272-81-0x00000000001A0000-0x00000000001A2000-memory.dmp

            Filesize

            8KB

          • memory/2272-60-0x0000000000440000-0x0000000000452000-memory.dmp

            Filesize

            72KB

          • memory/2272-33-0x00000000001A0000-0x00000000001A2000-memory.dmp

            Filesize

            8KB

          • memory/2272-61-0x00000000001A0000-0x00000000001A2000-memory.dmp

            Filesize

            8KB

          • memory/2272-1-0x0000000010000000-0x0000000010020000-memory.dmp

            Filesize

            128KB

          • memory/2272-2-0x0000000010000000-0x0000000010020000-memory.dmp

            Filesize

            128KB

          • memory/2272-9-0x0000000000170000-0x0000000000182000-memory.dmp

            Filesize

            72KB

          • memory/2272-34-0x00000000001B0000-0x00000000001B1000-memory.dmp

            Filesize

            4KB

          • memory/2272-43-0x00000000001B0000-0x00000000001B1000-memory.dmp

            Filesize

            4KB

          • memory/2280-63-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2280-101-0x0000000000360000-0x0000000000362000-memory.dmp

            Filesize

            8KB

          • memory/2280-128-0x0000000000360000-0x0000000000362000-memory.dmp

            Filesize

            8KB

          • memory/2280-100-0x00000000003B0000-0x00000000003B1000-memory.dmp

            Filesize

            4KB

          • memory/2280-105-0x0000000000360000-0x0000000000362000-memory.dmp

            Filesize

            8KB

          • memory/2280-176-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2280-177-0x0000000000A60000-0x0000000001B1A000-memory.dmp

            Filesize

            16.7MB

          • memory/2280-153-0x0000000000A60000-0x0000000001B1A000-memory.dmp

            Filesize

            16.7MB

          • memory/2736-108-0x00000000002B0000-0x00000000002B1000-memory.dmp

            Filesize

            4KB

          • memory/2736-109-0x0000000000260000-0x0000000000262000-memory.dmp

            Filesize

            8KB

          • memory/2736-151-0x0000000000260000-0x0000000000262000-memory.dmp

            Filesize

            8KB

          • memory/2736-181-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB