Analysis

  • max time kernel
    46s
  • max time network
    16s
  • platform
    windows7_x64
  • resource
    win7-20240705-en
  • resource tags

    arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
  • submitted
    19/07/2024, 06:21

General

  • Target

    636f3ae70903b26f87c5887e53991230N.dll

  • Size

    120KB

  • MD5

    636f3ae70903b26f87c5887e53991230

  • SHA1

    6cb2e172b622247f8fe8c8be91d7221ab72554ca

  • SHA256

    be8cd9725b1a9cbc6d01eb70455ce790f615fcb35c8b5e2ab47295317df602e6

  • SHA512

    4509f16744caac734b638acdefcf9ec48c3d04ba4be8343557a637cb09d0ee50563923846ab9581d86cca8faba3d826eb22ae98e7f5cf3f57749c0ce1a5a34e3

  • SSDEEP

    3072:S3HfU+KZrmJqsne3jMyMn6ia3/vomRCO7:S3/5KZrmJk3j/ia10O

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 9 IoCs
  • Sality

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

  • UAC bypass 3 TTPs 3 IoCs
  • Windows security bypass 2 TTPs 18 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 21 IoCs
  • Checks whether UAC is enabled 1 TTPs 3 IoCs
  • Enumerates connected drives 3 TTPs 16 IoCs

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

  • Drops file in Windows directory 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 42 IoCs
  • System policy modification 1 TTPs 3 IoCs

Processes

  • C:\Windows\system32\taskhost.exe
    "taskhost.exe"
    1⤵
      PID:1112
    • C:\Windows\system32\Dwm.exe
      "C:\Windows\system32\Dwm.exe"
      1⤵
        PID:1172
      • C:\Windows\Explorer.EXE
        C:\Windows\Explorer.EXE
        1⤵
          PID:1224
          • C:\Windows\system32\rundll32.exe
            rundll32.exe C:\Users\Admin\AppData\Local\Temp\636f3ae70903b26f87c5887e53991230N.dll,#1
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:3032
            • C:\Windows\SysWOW64\rundll32.exe
              rundll32.exe C:\Users\Admin\AppData\Local\Temp\636f3ae70903b26f87c5887e53991230N.dll,#1
              3⤵
              • Loads dropped DLL
              • Suspicious use of WriteProcessMemory
              PID:3036
              • C:\Users\Admin\AppData\Local\Temp\f76b5e7.exe
                C:\Users\Admin\AppData\Local\Temp\f76b5e7.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:2192
              • C:\Users\Admin\AppData\Local\Temp\f76b76d.exe
                C:\Users\Admin\AppData\Local\Temp\f76b76d.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:2084
              • C:\Users\Admin\AppData\Local\Temp\f76d1a1.exe
                C:\Users\Admin\AppData\Local\Temp\f76d1a1.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:3064
        • C:\Windows\system32\DllHost.exe
          C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
          1⤵
            PID:1824

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SYSTEM.INI

            Filesize

            257B

            MD5

            8187b943a5e45ff6b09f5830053a21eb

            SHA1

            42844a81f7332e6b9ca0885eea88ab77c74d0916

            SHA256

            2c26a46df3a5038e531be2ccd58702be9affa3df17d5c7258434d4cd2a5fad32

            SHA512

            ed57b0b83e0009843effdf09289fadb22edd853ad40e930b8dd56f8f9c4ddb8fd38a1dd50cb68717fef36b957eda23f9d2968f1b5b877798a52624e15c32c1c2

          • \Users\Admin\AppData\Local\Temp\f76b5e7.exe

            Filesize

            97KB

            MD5

            32d98b141586d54a876e90dcaff1cdef

            SHA1

            9a118da539c97bfbd5354533afb9be5e4d13360a

            SHA256

            c0dcc451d63488c7d5dc3adbd2b5dd9485273f1b1b017fd154646a8b29f7f48f

            SHA512

            5ac409f431d3f89f7332abb7de9bc4056524cf6be3cce85fbaf54841dc5b15e18793451103b00092bc3d363952c8f44618305841f2aa07545d14f74d242951c4

          • memory/1112-28-0x0000000000160000-0x0000000000162000-memory.dmp

            Filesize

            8KB

          • memory/2084-59-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2084-240-0x0000000000930000-0x00000000019EA000-memory.dmp

            Filesize

            16.7MB

          • memory/2084-190-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2084-191-0x0000000000930000-0x00000000019EA000-memory.dmp

            Filesize

            16.7MB

          • memory/2084-96-0x0000000000370000-0x0000000000371000-memory.dmp

            Filesize

            4KB

          • memory/2084-97-0x0000000000360000-0x0000000000362000-memory.dmp

            Filesize

            8KB

          • memory/2084-103-0x0000000000360000-0x0000000000362000-memory.dmp

            Filesize

            8KB

          • memory/2192-60-0x0000000000590000-0x000000000164A000-memory.dmp

            Filesize

            16.7MB

          • memory/2192-66-0x0000000000590000-0x000000000164A000-memory.dmp

            Filesize

            16.7MB

          • memory/2192-11-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2192-19-0x0000000000590000-0x000000000164A000-memory.dmp

            Filesize

            16.7MB

          • memory/2192-47-0x0000000000460000-0x0000000000462000-memory.dmp

            Filesize

            8KB

          • memory/2192-152-0x0000000000590000-0x000000000164A000-memory.dmp

            Filesize

            16.7MB

          • memory/2192-153-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/2192-56-0x0000000000460000-0x0000000000462000-memory.dmp

            Filesize

            8KB

          • memory/2192-45-0x0000000000470000-0x0000000000471000-memory.dmp

            Filesize

            4KB

          • memory/2192-18-0x0000000000590000-0x000000000164A000-memory.dmp

            Filesize

            16.7MB

          • memory/2192-107-0x0000000000590000-0x000000000164A000-memory.dmp

            Filesize

            16.7MB

          • memory/2192-21-0x0000000000590000-0x000000000164A000-memory.dmp

            Filesize

            16.7MB

          • memory/2192-16-0x0000000000590000-0x000000000164A000-memory.dmp

            Filesize

            16.7MB

          • memory/2192-15-0x0000000000590000-0x000000000164A000-memory.dmp

            Filesize

            16.7MB

          • memory/2192-14-0x0000000000590000-0x000000000164A000-memory.dmp

            Filesize

            16.7MB

          • memory/2192-22-0x0000000000590000-0x000000000164A000-memory.dmp

            Filesize

            16.7MB

          • memory/2192-20-0x0000000000590000-0x000000000164A000-memory.dmp

            Filesize

            16.7MB

          • memory/2192-61-0x0000000000590000-0x000000000164A000-memory.dmp

            Filesize

            16.7MB

          • memory/2192-62-0x0000000000590000-0x000000000164A000-memory.dmp

            Filesize

            16.7MB

          • memory/2192-63-0x0000000000590000-0x000000000164A000-memory.dmp

            Filesize

            16.7MB

          • memory/2192-64-0x0000000000590000-0x000000000164A000-memory.dmp

            Filesize

            16.7MB

          • memory/2192-12-0x0000000000590000-0x000000000164A000-memory.dmp

            Filesize

            16.7MB

          • memory/2192-67-0x0000000000590000-0x000000000164A000-memory.dmp

            Filesize

            16.7MB

          • memory/2192-106-0x0000000000590000-0x000000000164A000-memory.dmp

            Filesize

            16.7MB

          • memory/2192-17-0x0000000000590000-0x000000000164A000-memory.dmp

            Filesize

            16.7MB

          • memory/2192-86-0x0000000000590000-0x000000000164A000-memory.dmp

            Filesize

            16.7MB

          • memory/2192-85-0x0000000000590000-0x000000000164A000-memory.dmp

            Filesize

            16.7MB

          • memory/2192-82-0x0000000000590000-0x000000000164A000-memory.dmp

            Filesize

            16.7MB

          • memory/3036-8-0x00000000001F0000-0x0000000000202000-memory.dmp

            Filesize

            72KB

          • memory/3036-57-0x0000000000250000-0x0000000000262000-memory.dmp

            Filesize

            72KB

          • memory/3036-54-0x0000000000230000-0x0000000000232000-memory.dmp

            Filesize

            8KB

          • memory/3036-79-0x00000000001F0000-0x00000000001F2000-memory.dmp

            Filesize

            8KB

          • memory/3036-9-0x00000000001F0000-0x0000000000202000-memory.dmp

            Filesize

            72KB

          • memory/3036-75-0x0000000000230000-0x0000000000232000-memory.dmp

            Filesize

            8KB

          • memory/3036-78-0x0000000000840000-0x0000000000852000-memory.dmp

            Filesize

            72KB

          • memory/3036-44-0x0000000000240000-0x0000000000241000-memory.dmp

            Filesize

            4KB

          • memory/3036-35-0x0000000000230000-0x0000000000232000-memory.dmp

            Filesize

            8KB

          • memory/3036-1-0x0000000010000000-0x0000000010020000-memory.dmp

            Filesize

            128KB

          • memory/3036-36-0x0000000000240000-0x0000000000241000-memory.dmp

            Filesize

            4KB

          • memory/3036-58-0x0000000000230000-0x0000000000232000-memory.dmp

            Filesize

            8KB

          • memory/3064-101-0x0000000000370000-0x0000000000371000-memory.dmp

            Filesize

            4KB

          • memory/3064-81-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/3064-239-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/3064-104-0x0000000000360000-0x0000000000362000-memory.dmp

            Filesize

            8KB