Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-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
  • 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 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Windows\system32\winlogon.exe
    winlogon.exe
    1⤵
      PID:612
    • C:\Windows\Explorer.EXE
      C:\Windows\Explorer.EXE
      1⤵
        PID:3484
        • C:\Users\Admin\AppData\Local\Temp\4ee9ec984e9b67d700a144ce7fdfe785f2b8cc2907ff9ee3b4fc4e7fb7fe0f55N.exe
          "C:\Users\Admin\AppData\Local\Temp\4ee9ec984e9b67d700a144ce7fdfe785f2b8cc2907ff9ee3b4fc4e7fb7fe0f55N.exe"
          2⤵
          • Drops file in System32 directory
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:3120
          • 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
            • 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:3532
            • C:\Windows\SysWOW64\rmass.exe
              --k33p
              4⤵
              • Executes dropped EXE
              • Suspicious behavior: EnumeratesProcesses
              PID:4348

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            • C:\Windows\SysWOW64\RECOVER32.DLL

              Filesize

              5KB

              MD5

              12ff80c93916ec18553163d151a58a22

              SHA1

              42b06ecc5e03b767770f3ed0a12953326d0eede3

              SHA256

              144c5d2d4d938ad383d96c96163254b5e757ddb049d30445776f4077580668de

              SHA512

              50c29b2d567c75aa9b1bb2d4966d630a9747cdc50fc0843492a242068d67dc1c4fe418accb3acf6ce17e4831358d9acdab070aa81f673be086c589db6e5b7f67

            • C:\Windows\SysWOW64\ahuy.exe

              Filesize

              49KB

              MD5

              6dccfdbfbccc2e501cbd9f1814ad5e4c

              SHA1

              373d9e47cc86158283a44300cc7fdf5bcfc9ad7c

              SHA256

              0c16a1b0e5ca2851304d6271374277b0750714ae973ae7d5066203ca333685f3

              SHA512

              2013906bf0716fda7059b43a3e9d6576a831ef66b9eb8e7435cbca5dffceacb6fb7b88575bc32f7488d570b1bfa96525cad0fe52143fb50be0deb1f4fb438715

            • C:\Windows\SysWOW64\ntdbg.exe

              Filesize

              50KB

              MD5

              f98b40bb3d35d91cae9de0c16e3ce934

              SHA1

              fc00cd1619e532b301b7708c585a47c80e1deafd

              SHA256

              35240d3ab1e50e349b4d5951432454fb624cc9260be8737d4afa87279c3e0ce0

              SHA512

              fd30abf42379bc10e496ac172ec2f3400af2d9b66e8baa41a3518ca1701365b5caec974825f6f4f72647a2dbbcf1196edfa204fccf86ede28473ecaf7cecaacc

            • C:\Windows\SysWOW64\rmass.exe

              Filesize

              46KB

              MD5

              560ad83daaedd76f2e111a3e0fcfcb05

              SHA1

              1cb9082ecf83c06ea04a40d8233f5b4e209f78b8

              SHA256

              f3984e23d9b498dfc7bed2ea9c6c07b1b7eee2e796307422368ee1586b60c130

              SHA512

              dae737f0fd6182b66f1d740710b96686e8208fb048e215e6bf990991aafa0faa154c24966e57f9f3d5136c58e51cf1956a4c2dcf3c3817361fde3d3f7e45ca35

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

              Filesize

              1KB

              MD5

              6f47b62de25d1745e296a06b3f98ed19

              SHA1

              a688bb35a4c8a5cc198985d624a1b5a6ac5b9f6f

              SHA256

              15c7218eb9cef5fa0573db657b15ce3a5f0e0609f1166df8098ca7152df505b4

              SHA512

              dea26fff8060f44bf20fe4fff2ecbacf428727f10c0f5886fb4813e28fce9cbc3d088337c84edd9857b18514c83f1bb1cf0f51518aaecef09f30e921f4d758d7

            • memory/3120-3-0x0000000000400000-0x0000000000403000-memory.dmp

              Filesize

              12KB

            • memory/3532-44-0x0000000000400000-0x000000000040E000-memory.dmp

              Filesize

              56KB

            • memory/4348-45-0x0000000000400000-0x000000000040E000-memory.dmp

              Filesize

              56KB