Analysis

  • max time kernel
    118s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    18/04/2024, 03:03

General

  • Target

    d6166fc20ca1ffbb88dd324a77188d4c49bac76d9343e8db241f5f96a947ec8e.dll

  • Size

    120KB

  • MD5

    1a4be52385870be49f2f49ac74dfbc93

  • SHA1

    224a77f06e146bbda7010728995305ae1895fbd0

  • SHA256

    d6166fc20ca1ffbb88dd324a77188d4c49bac76d9343e8db241f5f96a947ec8e

  • SHA512

    b0ab0af5b959878ef632931d5ba0c84cdf79994206ee6252b553db415c3eaf74f41a4ae15f712fe2e1e6d084999f8c276245dec66f9bd1aad7b11b237fdc873d

  • SSDEEP

    3072:JQwbHZysBrQn6k1lJwPh0yeK5XqxmQGf:JdgsYhlJ5g56UQ

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 24 IoCs
  • UPX dump on OEP (original entry point) 29 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 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\Dwm.exe
    "C:\Windows\system32\Dwm.exe"
    1⤵
      PID:1040
    • C:\Windows\system32\taskhost.exe
      "taskhost.exe"
      1⤵
        PID:1056
      • C:\Windows\Explorer.EXE
        C:\Windows\Explorer.EXE
        1⤵
          PID:1104
          • C:\Windows\system32\rundll32.exe
            rundll32.exe C:\Users\Admin\AppData\Local\Temp\d6166fc20ca1ffbb88dd324a77188d4c49bac76d9343e8db241f5f96a947ec8e.dll,#1
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:2196
            • C:\Windows\SysWOW64\rundll32.exe
              rundll32.exe C:\Users\Admin\AppData\Local\Temp\d6166fc20ca1ffbb88dd324a77188d4c49bac76d9343e8db241f5f96a947ec8e.dll,#1
              3⤵
              • Loads dropped DLL
              • Suspicious use of WriteProcessMemory
              PID:1780
              • C:\Users\Admin\AppData\Local\Temp\f760474.exe
                C:\Users\Admin\AppData\Local\Temp\f760474.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:2700
              • C:\Users\Admin\AppData\Local\Temp\f760aca.exe
                C:\Users\Admin\AppData\Local\Temp\f760aca.exe
                4⤵
                • Executes dropped EXE
                PID:2696
              • C:\Users\Admin\AppData\Local\Temp\f76204d.exe
                C:\Users\Admin\AppData\Local\Temp\f76204d.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:1004
        • C:\Windows\system32\DllHost.exe
          C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
          1⤵
            PID:328

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\f760474.exe

            Filesize

            97KB

            MD5

            0a57118ff9aeea24dcb524494bd96179

            SHA1

            e9a49423c2d6bce3ca348ae7fd55e9bdfcad5ef3

            SHA256

            fa88ed885ea8af935c76cd34b0f0590fc23a1f564d5e6d452f793e0402905738

            SHA512

            11c46ace54fa587c0ddbc9c8aaa2a479276f6005e21ded7b1637ee3c6ee7478f4a31d2eb5ca22e789f81e5dd179aa75a21f1a39feafc30ada395559d4a552908

          • C:\Windows\SYSTEM.INI

            Filesize

            257B

            MD5

            a463098e2f0477671cac6071424d0fc9

            SHA1

            ab42d16422d2c761ee79efcbef05257e8dfb41a6

            SHA256

            abbacf369e6de5b0dbddcd0db6a244b63aa39f6439d8624cb63d3288d4b64d70

            SHA512

            8ff85e9bd13370d132ab26d183829308744bfce9d733a7a304e98e5bc73b5ef087fa428446a7fd95eb46dc5190259a64d6fc47a5bf804c289ba0e29f5e35d82b

          • memory/1004-101-0x00000000001F0000-0x00000000001F2000-memory.dmp

            Filesize

            8KB

          • memory/1004-102-0x00000000002C0000-0x00000000002C1000-memory.dmp

            Filesize

            4KB

          • memory/1004-187-0x0000000000910000-0x00000000019CA000-memory.dmp

            Filesize

            16.7MB

          • memory/1004-149-0x0000000000910000-0x00000000019CA000-memory.dmp

            Filesize

            16.7MB

          • memory/1004-79-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/1004-188-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/1040-15-0x0000000000130000-0x0000000000132000-memory.dmp

            Filesize

            8KB

          • memory/1780-32-0x0000000000270000-0x0000000000271000-memory.dmp

            Filesize

            4KB

          • memory/1780-1-0x0000000010000000-0x0000000010020000-memory.dmp

            Filesize

            128KB

          • memory/1780-78-0x00000000001F0000-0x00000000001F2000-memory.dmp

            Filesize

            8KB

          • memory/1780-73-0x0000000000260000-0x0000000000262000-memory.dmp

            Filesize

            8KB

          • memory/1780-30-0x0000000000260000-0x0000000000262000-memory.dmp

            Filesize

            8KB

          • memory/1780-34-0x0000000000260000-0x0000000000262000-memory.dmp

            Filesize

            8KB

          • memory/1780-37-0x0000000000270000-0x0000000000271000-memory.dmp

            Filesize

            4KB

          • memory/1780-76-0x0000000000B00000-0x0000000000B12000-memory.dmp

            Filesize

            72KB

          • memory/1780-50-0x0000000000B00000-0x0000000000B12000-memory.dmp

            Filesize

            72KB

          • memory/1780-10-0x00000000001F0000-0x0000000000202000-memory.dmp

            Filesize

            72KB

          • memory/2696-144-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2696-52-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2696-95-0x0000000000260000-0x0000000000262000-memory.dmp

            Filesize

            8KB

          • memory/2696-96-0x00000000002B0000-0x00000000002B1000-memory.dmp

            Filesize

            4KB

          • memory/2700-60-0x00000000005F0000-0x00000000016AA000-memory.dmp

            Filesize

            16.7MB

          • memory/2700-85-0x00000000005F0000-0x00000000016AA000-memory.dmp

            Filesize

            16.7MB

          • memory/2700-61-0x00000000005F0000-0x00000000016AA000-memory.dmp

            Filesize

            16.7MB

          • memory/2700-62-0x00000000005F0000-0x00000000016AA000-memory.dmp

            Filesize

            16.7MB

          • memory/2700-63-0x00000000005F0000-0x00000000016AA000-memory.dmp

            Filesize

            16.7MB

          • memory/2700-58-0x0000000000470000-0x0000000000471000-memory.dmp

            Filesize

            4KB

          • memory/2700-31-0x00000000005F0000-0x00000000016AA000-memory.dmp

            Filesize

            16.7MB

          • memory/2700-56-0x0000000000450000-0x0000000000452000-memory.dmp

            Filesize

            8KB

          • memory/2700-36-0x00000000005F0000-0x00000000016AA000-memory.dmp

            Filesize

            16.7MB

          • memory/2700-65-0x00000000005F0000-0x00000000016AA000-memory.dmp

            Filesize

            16.7MB

          • memory/2700-80-0x00000000005F0000-0x00000000016AA000-memory.dmp

            Filesize

            16.7MB

          • memory/2700-81-0x00000000005F0000-0x00000000016AA000-memory.dmp

            Filesize

            16.7MB

          • memory/2700-83-0x00000000005F0000-0x00000000016AA000-memory.dmp

            Filesize

            16.7MB

          • memory/2700-59-0x00000000005F0000-0x00000000016AA000-memory.dmp

            Filesize

            16.7MB

          • memory/2700-27-0x00000000005F0000-0x00000000016AA000-memory.dmp

            Filesize

            16.7MB

          • memory/2700-24-0x00000000005F0000-0x00000000016AA000-memory.dmp

            Filesize

            16.7MB

          • memory/2700-21-0x00000000005F0000-0x00000000016AA000-memory.dmp

            Filesize

            16.7MB

          • memory/2700-19-0x00000000005F0000-0x00000000016AA000-memory.dmp

            Filesize

            16.7MB

          • memory/2700-103-0x0000000000450000-0x0000000000452000-memory.dmp

            Filesize

            8KB

          • memory/2700-104-0x00000000005F0000-0x00000000016AA000-memory.dmp

            Filesize

            16.7MB

          • memory/2700-140-0x00000000005F0000-0x00000000016AA000-memory.dmp

            Filesize

            16.7MB

          • memory/2700-16-0x00000000005F0000-0x00000000016AA000-memory.dmp

            Filesize

            16.7MB

          • memory/2700-14-0x00000000005F0000-0x00000000016AA000-memory.dmp

            Filesize

            16.7MB

          • memory/2700-13-0x00000000005F0000-0x00000000016AA000-memory.dmp

            Filesize

            16.7MB

          • memory/2700-11-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2700-9-0x00000000005F0000-0x00000000016AA000-memory.dmp

            Filesize

            16.7MB