Analysis

  • max time kernel
    27s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    18-05-2024 21:28

General

  • Target

    524e94735a951a9e778b45132075f073d344c732e4c8502973060c8c32ce6115.dll

  • Size

    120KB

  • MD5

    2289adfc0e5677631294a183d498064e

  • SHA1

    1a1af5600aa0d8b7f08cf7df882f270a4f42d071

  • SHA256

    524e94735a951a9e778b45132075f073d344c732e4c8502973060c8c32ce6115

  • SHA512

    a390934d285544f44b132f2ccb0796a4443be0fbd0e9b1ff7b50336c4e9f9f7c06882a700f704e243c739271c89bc49ef83843fa2be4ad11492d9df64a6ce991

  • SSDEEP

    3072:O8WntAQL/+GsgtUi2wAuzsSOWjQEcpAqmqS5Yit5fVHW:it56Gs5KX0f+qkB5fVHW

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) 28 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 15 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:1112
    • C:\Windows\system32\Dwm.exe
      "C:\Windows\system32\Dwm.exe"
      1⤵
        PID:1168
      • C:\Windows\Explorer.EXE
        C:\Windows\Explorer.EXE
        1⤵
          PID:1208
          • C:\Windows\system32\rundll32.exe
            rundll32.exe C:\Users\Admin\AppData\Local\Temp\524e94735a951a9e778b45132075f073d344c732e4c8502973060c8c32ce6115.dll,#1
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:2208
            • C:\Windows\SysWOW64\rundll32.exe
              rundll32.exe C:\Users\Admin\AppData\Local\Temp\524e94735a951a9e778b45132075f073d344c732e4c8502973060c8c32ce6115.dll,#1
              3⤵
              • Loads dropped DLL
              • Suspicious use of WriteProcessMemory
              PID:1752
              • C:\Users\Admin\AppData\Local\Temp\f7629af.exe
                C:\Users\Admin\AppData\Local\Temp\f7629af.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:2420
              • C:\Users\Admin\AppData\Local\Temp\f762be1.exe
                C:\Users\Admin\AppData\Local\Temp\f762be1.exe
                4⤵
                • Executes dropped EXE
                PID:2232
              • C:\Users\Admin\AppData\Local\Temp\f764569.exe
                C:\Users\Admin\AppData\Local\Temp\f764569.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:2696
        • C:\Windows\system32\DllHost.exe
          C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
          1⤵
            PID:1828

          Network

          MITRE ATT&CK Matrix ATT&CK v13

          Persistence

          Create or Modify System Process

          1
          T1543

          Windows Service

          1
          T1543.003

          Privilege Escalation

          Create or Modify System Process

          1
          T1543

          Windows Service

          1
          T1543.003

          Abuse Elevation Control Mechanism

          1
          T1548

          Bypass User Account Control

          1
          T1548.002

          Defense Evasion

          Modify Registry

          5
          T1112

          Abuse Elevation Control Mechanism

          1
          T1548

          Bypass User Account Control

          1
          T1548.002

          Impair Defenses

          3
          T1562

          Disable or Modify Tools

          3
          T1562.001

          Discovery

          System Information Discovery

          2
          T1082

          Query Registry

          1
          T1012

          Peripheral Device Discovery

          1
          T1120

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SYSTEM.INI
            Filesize

            257B

            MD5

            528cf456e7b9d6b80485f51a2bb1e707

            SHA1

            ced162d61d17ad41f4a4faed8b87c953653cd1db

            SHA256

            944f6c6d0e363491514117a3ec61de6705693bf345bef67844cff72322027fdd

            SHA512

            91a918dc115bb6d32bffe3615e7ad94826e30b9ba7eeefb621fcbad6faad67b1ea8f5850dc75adc90b8f70e50f0608c25e5de1a44471b4abf017eed1e3f39b1b

          • \Users\Admin\AppData\Local\Temp\f7629af.exe
            Filesize

            97KB

            MD5

            aa951a8c02c8153ab05902165b878006

            SHA1

            691dae5ec1572a70698ab3d9690fec2a03d65d81

            SHA256

            8ddc10542a0283e0d8e121bee10db6e780585283b349ffe724676e2a28369cb8

            SHA512

            7c300ce8bd5472681717a3c7140c5f629e768a102c4685b10210950becacad5eb03feb769d5138819ec6814c48427c8d68a89a4b50c196edc662991425f83a22

          • memory/1112-26-0x0000000001ED0000-0x0000000001ED2000-memory.dmp
            Filesize

            8KB

          • memory/1752-56-0x0000000000160000-0x0000000000162000-memory.dmp
            Filesize

            8KB

          • memory/1752-34-0x00000000001C0000-0x00000000001C1000-memory.dmp
            Filesize

            4KB

          • memory/1752-11-0x0000000000400000-0x0000000000412000-memory.dmp
            Filesize

            72KB

          • memory/1752-10-0x0000000000400000-0x0000000000412000-memory.dmp
            Filesize

            72KB

          • memory/1752-33-0x0000000000160000-0x0000000000162000-memory.dmp
            Filesize

            8KB

          • memory/1752-1-0x0000000010000000-0x0000000010020000-memory.dmp
            Filesize

            128KB

          • memory/1752-43-0x00000000001C0000-0x00000000001C1000-memory.dmp
            Filesize

            4KB

          • memory/1752-52-0x0000000000160000-0x0000000000162000-memory.dmp
            Filesize

            8KB

          • memory/1752-3-0x0000000010000000-0x0000000010020000-memory.dmp
            Filesize

            128KB

          • memory/1752-0-0x0000000010000000-0x0000000010020000-memory.dmp
            Filesize

            128KB

          • memory/1752-81-0x0000000000400000-0x0000000000412000-memory.dmp
            Filesize

            72KB

          • memory/1752-55-0x0000000000260000-0x0000000000272000-memory.dmp
            Filesize

            72KB

          • memory/1752-2-0x0000000010000000-0x0000000010020000-memory.dmp
            Filesize

            128KB

          • memory/2232-57-0x0000000000400000-0x0000000000412000-memory.dmp
            Filesize

            72KB

          • memory/2232-104-0x00000000001B0000-0x00000000001B2000-memory.dmp
            Filesize

            8KB

          • memory/2232-106-0x00000000001B0000-0x00000000001B2000-memory.dmp
            Filesize

            8KB

          • memory/2232-97-0x0000000000240000-0x0000000000241000-memory.dmp
            Filesize

            4KB

          • memory/2232-171-0x0000000000400000-0x0000000000412000-memory.dmp
            Filesize

            72KB

          • memory/2420-19-0x0000000000980000-0x0000000001A3A000-memory.dmp
            Filesize

            16.7MB

          • memory/2420-86-0x0000000000980000-0x0000000001A3A000-memory.dmp
            Filesize

            16.7MB

          • memory/2420-23-0x0000000000980000-0x0000000001A3A000-memory.dmp
            Filesize

            16.7MB

          • memory/2420-22-0x0000000000980000-0x0000000001A3A000-memory.dmp
            Filesize

            16.7MB

          • memory/2420-20-0x0000000000980000-0x0000000001A3A000-memory.dmp
            Filesize

            16.7MB

          • memory/2420-53-0x00000000003D0000-0x00000000003D2000-memory.dmp
            Filesize

            8KB

          • memory/2420-15-0x0000000000980000-0x0000000001A3A000-memory.dmp
            Filesize

            16.7MB

          • memory/2420-63-0x0000000000980000-0x0000000001A3A000-memory.dmp
            Filesize

            16.7MB

          • memory/2420-64-0x0000000000980000-0x0000000001A3A000-memory.dmp
            Filesize

            16.7MB

          • memory/2420-65-0x0000000000980000-0x0000000001A3A000-memory.dmp
            Filesize

            16.7MB

          • memory/2420-66-0x0000000000980000-0x0000000001A3A000-memory.dmp
            Filesize

            16.7MB

          • memory/2420-67-0x0000000000980000-0x0000000001A3A000-memory.dmp
            Filesize

            16.7MB

          • memory/2420-69-0x0000000000980000-0x0000000001A3A000-memory.dmp
            Filesize

            16.7MB

          • memory/2420-70-0x0000000000980000-0x0000000001A3A000-memory.dmp
            Filesize

            16.7MB

          • memory/2420-14-0x0000000000400000-0x0000000000412000-memory.dmp
            Filesize

            72KB

          • memory/2420-44-0x00000000003E0000-0x00000000003E1000-memory.dmp
            Filesize

            4KB

          • memory/2420-84-0x0000000000980000-0x0000000001A3A000-memory.dmp
            Filesize

            16.7MB

          • memory/2420-25-0x0000000000980000-0x0000000001A3A000-memory.dmp
            Filesize

            16.7MB

          • memory/2420-88-0x0000000000980000-0x0000000001A3A000-memory.dmp
            Filesize

            16.7MB

          • memory/2420-24-0x0000000000980000-0x0000000001A3A000-memory.dmp
            Filesize

            16.7MB

          • memory/2420-17-0x0000000000980000-0x0000000001A3A000-memory.dmp
            Filesize

            16.7MB

          • memory/2420-149-0x0000000000980000-0x0000000001A3A000-memory.dmp
            Filesize

            16.7MB

          • memory/2420-21-0x0000000000980000-0x0000000001A3A000-memory.dmp
            Filesize

            16.7MB

          • memory/2420-150-0x0000000000400000-0x0000000000412000-memory.dmp
            Filesize

            72KB

          • memory/2420-18-0x0000000000980000-0x0000000001A3A000-memory.dmp
            Filesize

            16.7MB

          • memory/2420-108-0x0000000000980000-0x0000000001A3A000-memory.dmp
            Filesize

            16.7MB

          • memory/2420-126-0x00000000003D0000-0x00000000003D2000-memory.dmp
            Filesize

            8KB

          • memory/2696-103-0x00000000003F0000-0x00000000003F1000-memory.dmp
            Filesize

            4KB

          • memory/2696-107-0x00000000003E0000-0x00000000003E2000-memory.dmp
            Filesize

            8KB

          • memory/2696-105-0x00000000003E0000-0x00000000003E2000-memory.dmp
            Filesize

            8KB

          • memory/2696-83-0x0000000000400000-0x0000000000412000-memory.dmp
            Filesize

            72KB

          • memory/2696-170-0x0000000000900000-0x00000000019BA000-memory.dmp
            Filesize

            16.7MB

          • memory/2696-205-0x0000000000900000-0x00000000019BA000-memory.dmp
            Filesize

            16.7MB

          • memory/2696-204-0x0000000000400000-0x0000000000412000-memory.dmp
            Filesize

            72KB