Analysis

  • max time kernel
    150s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    13-06-2024 22:49

General

  • Target

    51fb2a086644269d7813b251e6520581716cf48c06a4f10b809aa1dd7c23d870.exe

  • Size

    65KB

  • MD5

    398dd1e0b169bd264f59437fcdc8ce96

  • SHA1

    323f022e6b734875afa6f74e5765787092dc6717

  • SHA256

    51fb2a086644269d7813b251e6520581716cf48c06a4f10b809aa1dd7c23d870

  • SHA512

    6c89d4ae1b20660e8a7c460395290698bc6fc10a9ab564ff8c0948f725f7897ced02121a968e7c75d0fca2f4647ee1b00a68b007740e583f7be3797a873f8518

  • SSDEEP

    1536:ECq3yRuqrI01eArdW/O7JnI2e13XiLij40MkTUVqa/OuF:7WNqkOJWmo1HpM0MkTUmuF

Score
10/10

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 2 IoCs
  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Modifies Installed Components in the registry 2 TTPs 8 IoCs
  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 8 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Drops file in Windows directory 6 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious use of SetWindowsHookEx 12 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\51fb2a086644269d7813b251e6520581716cf48c06a4f10b809aa1dd7c23d870.exe
    "C:\Users\Admin\AppData\Local\Temp\51fb2a086644269d7813b251e6520581716cf48c06a4f10b809aa1dd7c23d870.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2104
    • \??\c:\windows\system\explorer.exe
      c:\windows\system\explorer.exe
      2⤵
      • Modifies WinLogon for persistence
      • Modifies visiblity of hidden/system files in Explorer
      • Modifies Installed Components in the registry
      • Executes dropped EXE
      • Loads dropped DLL
      • Adds Run key to start application
      • Drops file in Windows directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2424
      • \??\c:\windows\system\spoolsv.exe
        c:\windows\system\spoolsv.exe SE
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Drops file in Windows directory
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2616
        • \??\c:\windows\system\svchost.exe
          c:\windows\system\svchost.exe
          4⤵
          • Modifies WinLogon for persistence
          • Modifies visiblity of hidden/system files in Explorer
          • Modifies Installed Components in the registry
          • Executes dropped EXE
          • Loads dropped DLL
          • Adds Run key to start application
          • Drops file in Windows directory
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:2672
          • \??\c:\windows\system\spoolsv.exe
            c:\windows\system\spoolsv.exe PR
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetWindowsHookEx
            PID:2496
          • C:\Windows\SysWOW64\at.exe
            at 22:51 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
            5⤵
              PID:1784
            • C:\Windows\SysWOW64\at.exe
              at 22:52 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
              5⤵
                PID:2032
              • C:\Windows\SysWOW64\at.exe
                at 22:53 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe
                5⤵
                  PID:1944

        Network

        MITRE ATT&CK Matrix ATT&CK v13

        Persistence

        Boot or Logon Autostart Execution

        3
        T1547

        Registry Run Keys / Startup Folder

        2
        T1547.001

        Winlogon Helper DLL

        1
        T1547.004

        Privilege Escalation

        Boot or Logon Autostart Execution

        3
        T1547

        Registry Run Keys / Startup Folder

        2
        T1547.001

        Winlogon Helper DLL

        1
        T1547.004

        Defense Evasion

        Modify Registry

        4
        T1112

        Hide Artifacts

        1
        T1564

        Hidden Files and Directories

        1
        T1564.001

        Discovery

        System Information Discovery

        1
        T1082

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Roaming\mrsys.exe
          Filesize

          65KB

          MD5

          ac96345989637a928bca0989adef625e

          SHA1

          69643238ac0fa55b375aae937a848fd19ba4310c

          SHA256

          bcab1f059f844d21b78025826dfdbe6b9f4f661800675058c0861ad89600bb3b

          SHA512

          277ea8e6f4050b4df094fef69287e4dc77fd1f3611f49747bcc28f93c5a605581286ab9a02992d30d340a60b805f56b88c3f435a88807252d39a995e8761c12e

        • C:\Windows\system\svchost.exe
          Filesize

          65KB

          MD5

          e88968d71777a8f7f9e319a73799ad9c

          SHA1

          b5641d04ae5d1040698f2b210d6de9954432191c

          SHA256

          5974125c186429669b8b9d46677b24e900f61477fd9ba112b12bd502223f55f9

          SHA512

          49ecbc98213a6afd9871b86b21651931bccdc226b17cd832e6d340d5d56737c146d29d081cc65c6df279ffe4e820b2f98d54dd1f2af2a1c3add5f320f56b33ed

        • \Windows\system\explorer.exe
          Filesize

          65KB

          MD5

          5cb4fd174f1c0afaa5f35e108ef0ba1d

          SHA1

          8072fde6a9b6dfbbca11f65a4643af0ca83fe297

          SHA256

          e1435b626b61ca3b46c7a95e6dd1893e951f672286d7b08e6ba517e1203ee9ff

          SHA512

          d6de2c2caef58f2bd664574dca7d45dc1793d946b700765974cb24dad43455d62e08531cb24cc6c892e8bb38d05b9b66bb906389c6409cc25a2e4e7c92763b87

        • \Windows\system\spoolsv.exe
          Filesize

          65KB

          MD5

          7a525a85003a8c10263b82ce1dff3a7e

          SHA1

          96cbeae5b338ebd4bbd06458fab5787dfa35cf3a

          SHA256

          0323550c71c87a370bdc88327d86fe4b9abcd90ab40a62e5b671bcbf2359e752

          SHA512

          8242e97d33e09c84a524050c916e036a70bdee615a66e5341f92ba01ed0b3216fd60f54a899d1ef3671cc96cb51bd7d6be738837f8def78a68537d1f4ee3488b

        • memory/2104-3-0x0000000000400000-0x0000000000431000-memory.dmp
          Filesize

          196KB

        • memory/2104-4-0x0000000000401000-0x000000000042E000-memory.dmp
          Filesize

          180KB

        • memory/2104-0-0x0000000000400000-0x0000000000431000-memory.dmp
          Filesize

          196KB

        • memory/2104-17-0x0000000002AE0000-0x0000000002B11000-memory.dmp
          Filesize

          196KB

        • memory/2104-81-0x0000000000401000-0x000000000042E000-memory.dmp
          Filesize

          180KB

        • memory/2104-80-0x0000000000400000-0x0000000000431000-memory.dmp
          Filesize

          196KB

        • memory/2104-2-0x0000000000020000-0x0000000000024000-memory.dmp
          Filesize

          16KB

        • memory/2104-1-0x0000000072940000-0x0000000072A93000-memory.dmp
          Filesize

          1.3MB

        • memory/2424-93-0x0000000000400000-0x0000000000431000-memory.dmp
          Filesize

          196KB

        • memory/2424-82-0x0000000000400000-0x0000000000431000-memory.dmp
          Filesize

          196KB

        • memory/2424-35-0x0000000002850000-0x0000000002881000-memory.dmp
          Filesize

          196KB

        • memory/2424-34-0x0000000002850000-0x0000000002881000-memory.dmp
          Filesize

          196KB

        • memory/2424-23-0x0000000000400000-0x0000000000431000-memory.dmp
          Filesize

          196KB

        • memory/2424-19-0x0000000072940000-0x0000000072A93000-memory.dmp
          Filesize

          1.3MB

        • memory/2424-18-0x0000000000400000-0x0000000000431000-memory.dmp
          Filesize

          196KB

        • memory/2496-73-0x0000000000400000-0x0000000000431000-memory.dmp
          Filesize

          196KB

        • memory/2496-65-0x0000000072940000-0x0000000072A93000-memory.dmp
          Filesize

          1.3MB

        • memory/2496-71-0x0000000000400000-0x0000000000431000-memory.dmp
          Filesize

          196KB

        • memory/2616-37-0x0000000072940000-0x0000000072A93000-memory.dmp
          Filesize

          1.3MB

        • memory/2616-75-0x0000000000400000-0x0000000000431000-memory.dmp
          Filesize

          196KB

        • memory/2616-42-0x0000000000400000-0x0000000000431000-memory.dmp
          Filesize

          196KB

        • memory/2616-46-0x0000000000400000-0x0000000000431000-memory.dmp
          Filesize

          196KB

        • memory/2672-70-0x0000000002740000-0x0000000002771000-memory.dmp
          Filesize

          196KB

        • memory/2672-59-0x0000000000400000-0x0000000000431000-memory.dmp
          Filesize

          196KB

        • memory/2672-55-0x0000000072940000-0x0000000072A93000-memory.dmp
          Filesize

          1.3MB

        • memory/2672-54-0x0000000000400000-0x0000000000431000-memory.dmp
          Filesize

          196KB

        • memory/2672-84-0x0000000000400000-0x0000000000431000-memory.dmp
          Filesize

          196KB