Analysis

  • max time kernel
    151s
  • max time network
    104s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    02/12/2022, 22:05

General

  • Target

    e78b73e8cc52a754938328bc1975e0d4e7896577ba9a0f8ac8d50de9a3db7b4f.exe

  • Size

    1.3MB

  • MD5

    f60f1039d3d2edb2aac7114ad53c973b

  • SHA1

    0f1a1f068b50726f1b31d32f2a848d89eff6fd57

  • SHA256

    e78b73e8cc52a754938328bc1975e0d4e7896577ba9a0f8ac8d50de9a3db7b4f

  • SHA512

    03e321a7fbdea343f95ed47533fd30ad2955b714b8a6d494c00c556d5e178ef11e7e1052b0660fc7f75af523496121dc79006d792e1028c9065aae302bfa8428

  • SSDEEP

    24576:gZusv/DwNLHPJH6pYCkeKW/8XwQmRtPF+mviWavPzGLgO2uptmh:vsv/GvtkHKW/8XwQUhahyLgwpt+

Malware Config

Signatures

  • UAC bypass 3 TTPs 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Modifies Windows Firewall 1 TTPs 2 IoCs
  • Drops startup file 2 IoCs
  • Loads dropped DLL 6 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Checks whether UAC is enabled 1 TTPs 4 IoCs
  • Enumerates connected drives 3 TTPs 1 IoCs

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

  • Drops file in Program Files directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 10 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e78b73e8cc52a754938328bc1975e0d4e7896577ba9a0f8ac8d50de9a3db7b4f.exe
    "C:\Users\Admin\AppData\Local\Temp\e78b73e8cc52a754938328bc1975e0d4e7896577ba9a0f8ac8d50de9a3db7b4f.exe"
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1992
    • C:\Users\Admin\AppData\Local\Temp\MMBPlayer\serverr.exe
      "C:\Users\Admin\AppData\Local\Temp\MMBPlayer\serverr.exe"
      2⤵
      • UAC bypass
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks whether UAC is enabled
      • Drops file in Program Files directory
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      • System policy modification
      PID:1224
      • C:\Program Files (x86)\sqlserver.exe
        "C:\Program Files (x86)\sqlserver.exe"
        3⤵
        • UAC bypass
        • Executes dropped EXE
        • Drops startup file
        • Adds Run key to start application
        • Checks whether UAC is enabled
        • Drops file in Program Files directory
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        • System policy modification
        PID:2032
        • C:\Windows\SysWOW64\netsh.exe
          netsh firewall add allowedprogram "C:\Program Files (x86)\sqlserver.exe" "sqlserver.exe" ENABLE
          4⤵
          • Modifies Windows Firewall
          PID:520
        • C:\Windows\SysWOW64\netsh.exe
          netsh firewall add allowedprogram "C:\Windows\SysWOW64\wscript.exe" "wscript.exe" ENABLE
          4⤵
          • Modifies Windows Firewall
          PID:524
  • C:\Windows\system32\AUDIODG.EXE
    C:\Windows\system32\AUDIODG.EXE 0x468
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1984
  • C:\Windows\SysWOW64\DllHost.exe
    C:\Windows\SysWOW64\DllHost.exe /Processid:{76D0CB12-7604-4048-B83C-1005C7DDC503}
    1⤵
    • Suspicious use of FindShellTrayWindow
    PID:1776

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Program Files (x86)\sqlserver.exe

    Filesize

    62KB

    MD5

    3edb0d68414bb303c7b1088f571519cd

    SHA1

    f4f891f477a5b9ce6babb515cea7736f3b570c18

    SHA256

    73f44169a97696ce7701455ff4eb02677ca3eecace96f3597e4eefd3bfe6f240

    SHA512

    0a8cffb39df9d38d391f2035b0829b8aa926a5c536172fa1499d6352a8b07592f333cb5f7eeb1e72bc0817ac175807e38992a1982dbcc70cb222f4b6c22a5b69

  • C:\Program Files (x86)\sqlserver.exe

    Filesize

    62KB

    MD5

    3edb0d68414bb303c7b1088f571519cd

    SHA1

    f4f891f477a5b9ce6babb515cea7736f3b570c18

    SHA256

    73f44169a97696ce7701455ff4eb02677ca3eecace96f3597e4eefd3bfe6f240

    SHA512

    0a8cffb39df9d38d391f2035b0829b8aa926a5c536172fa1499d6352a8b07592f333cb5f7eeb1e72bc0817ac175807e38992a1982dbcc70cb222f4b6c22a5b69

  • C:\Users\Admin\AppData\Local\Temp\MMBPlayer\Serverr.exe

    Filesize

    62KB

    MD5

    3edb0d68414bb303c7b1088f571519cd

    SHA1

    f4f891f477a5b9ce6babb515cea7736f3b570c18

    SHA256

    73f44169a97696ce7701455ff4eb02677ca3eecace96f3597e4eefd3bfe6f240

    SHA512

    0a8cffb39df9d38d391f2035b0829b8aa926a5c536172fa1499d6352a8b07592f333cb5f7eeb1e72bc0817ac175807e38992a1982dbcc70cb222f4b6c22a5b69

  • C:\Users\Admin\AppData\Local\Temp\MMBPlayer\serverr.exe

    Filesize

    62KB

    MD5

    3edb0d68414bb303c7b1088f571519cd

    SHA1

    f4f891f477a5b9ce6babb515cea7736f3b570c18

    SHA256

    73f44169a97696ce7701455ff4eb02677ca3eecace96f3597e4eefd3bfe6f240

    SHA512

    0a8cffb39df9d38d391f2035b0829b8aa926a5c536172fa1499d6352a8b07592f333cb5f7eeb1e72bc0817ac175807e38992a1982dbcc70cb222f4b6c22a5b69

  • \Program Files (x86)\sqlserver.exe

    Filesize

    62KB

    MD5

    3edb0d68414bb303c7b1088f571519cd

    SHA1

    f4f891f477a5b9ce6babb515cea7736f3b570c18

    SHA256

    73f44169a97696ce7701455ff4eb02677ca3eecace96f3597e4eefd3bfe6f240

    SHA512

    0a8cffb39df9d38d391f2035b0829b8aa926a5c536172fa1499d6352a8b07592f333cb5f7eeb1e72bc0817ac175807e38992a1982dbcc70cb222f4b6c22a5b69

  • \Program Files (x86)\sqlserver.exe

    Filesize

    62KB

    MD5

    3edb0d68414bb303c7b1088f571519cd

    SHA1

    f4f891f477a5b9ce6babb515cea7736f3b570c18

    SHA256

    73f44169a97696ce7701455ff4eb02677ca3eecace96f3597e4eefd3bfe6f240

    SHA512

    0a8cffb39df9d38d391f2035b0829b8aa926a5c536172fa1499d6352a8b07592f333cb5f7eeb1e72bc0817ac175807e38992a1982dbcc70cb222f4b6c22a5b69

  • \Users\Admin\AppData\Local\Temp\MMBPlayer\Serverr.exe

    Filesize

    62KB

    MD5

    3edb0d68414bb303c7b1088f571519cd

    SHA1

    f4f891f477a5b9ce6babb515cea7736f3b570c18

    SHA256

    73f44169a97696ce7701455ff4eb02677ca3eecace96f3597e4eefd3bfe6f240

    SHA512

    0a8cffb39df9d38d391f2035b0829b8aa926a5c536172fa1499d6352a8b07592f333cb5f7eeb1e72bc0817ac175807e38992a1982dbcc70cb222f4b6c22a5b69

  • \Users\Admin\AppData\Local\Temp\MMBPlayer\Serverr.exe

    Filesize

    62KB

    MD5

    3edb0d68414bb303c7b1088f571519cd

    SHA1

    f4f891f477a5b9ce6babb515cea7736f3b570c18

    SHA256

    73f44169a97696ce7701455ff4eb02677ca3eecace96f3597e4eefd3bfe6f240

    SHA512

    0a8cffb39df9d38d391f2035b0829b8aa926a5c536172fa1499d6352a8b07592f333cb5f7eeb1e72bc0817ac175807e38992a1982dbcc70cb222f4b6c22a5b69

  • \Users\Admin\AppData\Local\Temp\MMBPlayer\Serverr.exe

    Filesize

    62KB

    MD5

    3edb0d68414bb303c7b1088f571519cd

    SHA1

    f4f891f477a5b9ce6babb515cea7736f3b570c18

    SHA256

    73f44169a97696ce7701455ff4eb02677ca3eecace96f3597e4eefd3bfe6f240

    SHA512

    0a8cffb39df9d38d391f2035b0829b8aa926a5c536172fa1499d6352a8b07592f333cb5f7eeb1e72bc0817ac175807e38992a1982dbcc70cb222f4b6c22a5b69

  • \Users\Admin\AppData\Local\Temp\MMBPlayer\Serverr.exe

    Filesize

    62KB

    MD5

    3edb0d68414bb303c7b1088f571519cd

    SHA1

    f4f891f477a5b9ce6babb515cea7736f3b570c18

    SHA256

    73f44169a97696ce7701455ff4eb02677ca3eecace96f3597e4eefd3bfe6f240

    SHA512

    0a8cffb39df9d38d391f2035b0829b8aa926a5c536172fa1499d6352a8b07592f333cb5f7eeb1e72bc0817ac175807e38992a1982dbcc70cb222f4b6c22a5b69

  • memory/1224-65-0x0000000074170000-0x000000007471B000-memory.dmp

    Filesize

    5.7MB

  • memory/1224-66-0x0000000074170000-0x000000007471B000-memory.dmp

    Filesize

    5.7MB

  • memory/1224-73-0x0000000074170000-0x000000007471B000-memory.dmp

    Filesize

    5.7MB

  • memory/1992-54-0x0000000076141000-0x0000000076143000-memory.dmp

    Filesize

    8KB

  • memory/1992-55-0x0000000000400000-0x0000000000590000-memory.dmp

    Filesize

    1.6MB

  • memory/2032-76-0x0000000074170000-0x000000007471B000-memory.dmp

    Filesize

    5.7MB

  • memory/2032-79-0x0000000074170000-0x000000007471B000-memory.dmp

    Filesize

    5.7MB