Analysis

  • max time kernel
    118s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    24-11-2022 04:30

General

  • Target

    9e6a1628222295e94b1d15bbfebc0a22d7cf11d78a5785282283215eab062146.exe

  • Size

    77KB

  • MD5

    459a1b62476b2b8c246cbebe23ed6035

  • SHA1

    949ace5987007bb1378e2ef7156920269a609943

  • SHA256

    9e6a1628222295e94b1d15bbfebc0a22d7cf11d78a5785282283215eab062146

  • SHA512

    d7ce41e8ad102917844796cf82bf7da03cbc182aacb39373fe1ba47a63f31993e7e9f5ef2d6a4ee74dd62c0cae43a6e0146866bd4839d4ff638b7a8b0d05b7c4

  • SSDEEP

    1536:ZtHF5geAD7efNm9hQH5kCu6W1STnTpGY1hpJ1xzhP9h/nd4:ZxUD7efkNrQTtDphzhPzd4

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Modifies Installed Components in the registry 2 TTPs 2 IoCs
  • Deletes itself 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Drops file in System32 directory 2 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9e6a1628222295e94b1d15bbfebc0a22d7cf11d78a5785282283215eab062146.exe
    "C:\Users\Admin\AppData\Local\Temp\9e6a1628222295e94b1d15bbfebc0a22d7cf11d78a5785282283215eab062146.exe"
    1⤵
    • Drops file in System32 directory
    • Suspicious use of WriteProcessMemory
    PID:1728
    • C:\Windows\SysWOW64\cmd.exe
      cmd /D /R type "C:\Users\Admin\AppData\Roaming\Windows\winlogin.exe" > ___ && move /Y ___ "C:\Users\Admin\AppData\Roaming\Windows\winlogin.exe"
      2⤵
        PID:1216
      • C:\Windows\SysWOW64\cmd.exe
        cmd /D /R ping -n 10 localhost && del "C:\Users\Admin\AppData\Local\Temp\9e6a1628222295e94b1d15bbfebc0a22d7cf11d78a5785282283215eab062146.exe" && start /B "" "C:\Users\Admin\AppData\Roaming\Windows\winlogin.exe" && exit
        2⤵
        • Deletes itself
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:584
        • C:\Windows\SysWOW64\PING.EXE
          ping -n 10 localhost
          3⤵
          • Runs ping.exe
          PID:1068
        • C:\Users\Admin\AppData\Roaming\Windows\winlogin.exe
          "C:\Users\Admin\AppData\Roaming\Windows\winlogin.exe"
          3⤵
          • Executes dropped EXE
          • Modifies Installed Components in the registry
          • Adds Run key to start application
          • Drops file in System32 directory
          PID:1992

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Roaming\Windows\winlogin.exe

      Filesize

      77KB

      MD5

      459a1b62476b2b8c246cbebe23ed6035

      SHA1

      949ace5987007bb1378e2ef7156920269a609943

      SHA256

      9e6a1628222295e94b1d15bbfebc0a22d7cf11d78a5785282283215eab062146

      SHA512

      d7ce41e8ad102917844796cf82bf7da03cbc182aacb39373fe1ba47a63f31993e7e9f5ef2d6a4ee74dd62c0cae43a6e0146866bd4839d4ff638b7a8b0d05b7c4

    • C:\Users\Admin\AppData\Roaming\Windows\winlogin.exe

      Filesize

      77KB

      MD5

      459a1b62476b2b8c246cbebe23ed6035

      SHA1

      949ace5987007bb1378e2ef7156920269a609943

      SHA256

      9e6a1628222295e94b1d15bbfebc0a22d7cf11d78a5785282283215eab062146

      SHA512

      d7ce41e8ad102917844796cf82bf7da03cbc182aacb39373fe1ba47a63f31993e7e9f5ef2d6a4ee74dd62c0cae43a6e0146866bd4839d4ff638b7a8b0d05b7c4

    • C:\Users\Admin\AppData\Roaming\Windows\winlogin.exe

      Filesize

      77KB

      MD5

      459a1b62476b2b8c246cbebe23ed6035

      SHA1

      949ace5987007bb1378e2ef7156920269a609943

      SHA256

      9e6a1628222295e94b1d15bbfebc0a22d7cf11d78a5785282283215eab062146

      SHA512

      d7ce41e8ad102917844796cf82bf7da03cbc182aacb39373fe1ba47a63f31993e7e9f5ef2d6a4ee74dd62c0cae43a6e0146866bd4839d4ff638b7a8b0d05b7c4

    • C:\Windows\System32\CatRoot2\dberr.txt

      Filesize

      194KB

      MD5

      c5187199ee14318c6ca8db24454edbd5

      SHA1

      f9211ec6c765ae5d0cca2e48b60a8e2acfcdf6d1

      SHA256

      2b842fae4c39adae77ea540cd500ffe404b482383522f1f5aa9edf6f116d28e6

      SHA512

      c1af89f48f4bbe753809a1be033a690dd02a0fd9d3ba3534f0c821052f2f1a9ef8baaa4ef9cc87ad5107e2d3c235bdc32f2008fb54696d98f1847cdc0feef85f

    • \Users\Admin\AppData\Roaming\Windows\winlogin.exe

      Filesize

      77KB

      MD5

      459a1b62476b2b8c246cbebe23ed6035

      SHA1

      949ace5987007bb1378e2ef7156920269a609943

      SHA256

      9e6a1628222295e94b1d15bbfebc0a22d7cf11d78a5785282283215eab062146

      SHA512

      d7ce41e8ad102917844796cf82bf7da03cbc182aacb39373fe1ba47a63f31993e7e9f5ef2d6a4ee74dd62c0cae43a6e0146866bd4839d4ff638b7a8b0d05b7c4

    • memory/584-57-0x0000000000000000-mapping.dmp

    • memory/1068-58-0x0000000000000000-mapping.dmp

    • memory/1216-55-0x0000000000000000-mapping.dmp

    • memory/1728-54-0x0000000002010000-0x00000000020A5000-memory.dmp

      Filesize

      596KB

    • memory/1992-61-0x0000000000000000-mapping.dmp

    • memory/1992-64-0x0000000075881000-0x0000000075883000-memory.dmp

      Filesize

      8KB

    • memory/1992-65-0x0000000002050000-0x00000000020E5000-memory.dmp

      Filesize

      596KB