Analysis

  • max time kernel
    149s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    30/10/2024, 14:53

General

  • Target

    4ee9ec984e9b67d700a144ce7fdfe785f2b8cc2907ff9ee3b4fc4e7fb7fe0f55N.exe

  • Size

    49KB

  • MD5

    5c4f36b6ad585b5b03f615740f858680

  • SHA1

    2ce69bf1b549af12dce410996250a4bdcf48faca

  • SHA256

    4ee9ec984e9b67d700a144ce7fdfe785f2b8cc2907ff9ee3b4fc4e7fb7fe0f55

  • SHA512

    16e88a0d7a6cb94280dc64150da603fa709d4e94f89fa0ba3cad4f1374fb1a7964fdd36a7c65a9860ff2180cd76e771521e93176b43644b77e082677f9775225

  • SSDEEP

    768:jIUk6esQOVK0RNBwwboEeQBRsxX7P2A5Ah66ggzEmDmHjQy:jSowgKSHsxX6A2WeDmL

Malware Config

Signatures

  • Windows security bypass 2 TTPs 4 IoCs
  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 4 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

  • Drops file in Drivers directory 1 IoCs
  • Event Triggered Execution: Image File Execution Options Injection 1 TTPs 3 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 3 IoCs
  • Windows security modification 2 TTPs 4 IoCs
  • Indicator Removal: Clear Persistence 1 TTPs 1 IoCs

    remove IFEO.

  • Modifies WinLogon 2 TTPs 5 IoCs
  • Drops file in System32 directory 12 IoCs
  • Drops file in Program Files directory 3 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Windows\system32\winlogon.exe
    winlogon.exe
    1⤵
      PID:432
    • C:\Windows\Explorer.EXE
      C:\Windows\Explorer.EXE
      1⤵
        PID:1188
        • C:\Users\Admin\AppData\Local\Temp\4ee9ec984e9b67d700a144ce7fdfe785f2b8cc2907ff9ee3b4fc4e7fb7fe0f55N.exe
          "C:\Users\Admin\AppData\Local\Temp\4ee9ec984e9b67d700a144ce7fdfe785f2b8cc2907ff9ee3b4fc4e7fb7fe0f55N.exe"
          2⤵
          • Loads dropped DLL
          • Drops file in System32 directory
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2232
          • C:\Windows\SysWOW64\rmass.exe
            "C:\Windows\SysWOW64\rmass.exe"
            3⤵
            • Windows security bypass
            • Boot or Logon Autostart Execution: Active Setup
            • Drops file in Drivers directory
            • Event Triggered Execution: Image File Execution Options Injection
            • Executes dropped EXE
            • Loads dropped DLL
            • Windows security modification
            • Indicator Removal: Clear Persistence
            • Modifies WinLogon
            • Drops file in System32 directory
            • Drops file in Program Files directory
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:2448
            • C:\Windows\SysWOW64\rmass.exe
              --k33p
              4⤵
              • Executes dropped EXE
              • Suspicious behavior: EnumeratesProcesses
              PID:2796

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            • C:\Windows\SysWOW64\RECOVER32.DLL

              Filesize

              5KB

              MD5

              12ff80c93916ec18553163d151a58a22

              SHA1

              42b06ecc5e03b767770f3ed0a12953326d0eede3

              SHA256

              144c5d2d4d938ad383d96c96163254b5e757ddb049d30445776f4077580668de

              SHA512

              50c29b2d567c75aa9b1bb2d4966d630a9747cdc50fc0843492a242068d67dc1c4fe418accb3acf6ce17e4831358d9acdab070aa81f673be086c589db6e5b7f67

            • C:\Windows\SysWOW64\ahuy.exe

              Filesize

              49KB

              MD5

              938771b91bbd3ba7b25bdc8b518e21b5

              SHA1

              7e0466c609401a18d38d3bc2e8d1ceb0e165ef58

              SHA256

              14b1cf610aff17f46287ef18746b3e9c4b9606aa185b23e9519ea9fc446ecd85

              SHA512

              583518cda86bf1b4af285b657fd74dd1eaf255c00a3a3f3849b46767a663d140cf99ba17dba2e08a21205e13fcd99fc35b9e0d37b7846634d3c827408aa4ea7d

            • C:\Windows\SysWOW64\ntdbg.exe

              Filesize

              50KB

              MD5

              4c46f2fab10ddeec17ffd7e34ed9ab0c

              SHA1

              80a5ca627b92b0772936462dba953472097dba5b

              SHA256

              c468de351ff15460bf4e92df78508dad06e9ec01426a36d1ccc57f102cabb269

              SHA512

              84142f5ac642768771f63dfb45b10265f8e8af82ddd5b0eb0d85d8f274fc887b76c57bcf36451ad7b0ec88a04ad212119067d1517f360c37994e43fb6f103c9f

            • C:\Windows\System32\drivers\etc\hosts

              Filesize

              1KB

              MD5

              b10b13206b0f2cf3968050072f6979bf

              SHA1

              699db21ba9cecf3f13ac3d76e22cfa41aa94da80

              SHA256

              0eef3217095cb97b695c434e74d6314bf9e869a013d6e9c88e58c34576a276b4

              SHA512

              d33bfd931be6676539507a69101d99fa4c5ef36b12422bd11f063b9b6a47b7444f6c4ad5f35e044714fdb872e96cd9fddf049e8329af1219483887f6ac5f4a5d

            • \Windows\SysWOW64\rmass.exe

              Filesize

              46KB

              MD5

              560ad83daaedd76f2e111a3e0fcfcb05

              SHA1

              1cb9082ecf83c06ea04a40d8233f5b4e209f78b8

              SHA256

              f3984e23d9b498dfc7bed2ea9c6c07b1b7eee2e796307422368ee1586b60c130

              SHA512

              dae737f0fd6182b66f1d740710b96686e8208fb048e215e6bf990991aafa0faa154c24966e57f9f3d5136c58e51cf1956a4c2dcf3c3817361fde3d3f7e45ca35

            • memory/2232-7-0x0000000000400000-0x0000000000403000-memory.dmp

              Filesize

              12KB

            • memory/2448-50-0x0000000000400000-0x000000000040E000-memory.dmp

              Filesize

              56KB

            • memory/2796-51-0x0000000000400000-0x000000000040E000-memory.dmp

              Filesize

              56KB