Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    07-09-2022 11:35

General

  • Target

    server.exe

  • Size

    68KB

  • MD5

    b6e11c84a80412f8cb7330ab9fcc149e

  • SHA1

    266266241adc1907f2e6d8d1d15f8aeff89deb78

  • SHA256

    3cda160efdccaa80d566e2161b0e0d1541a9cb8d282d7636093e6e249235c1b3

  • SHA512

    f6a68c18e662dabdd9fa1e1eb8b92e91642fda4dae7fda4847b37b9e2408d97e45996cae14b6c0afc4c8068c18e2f945f4c0c0726c4b4009876636a4dbb46784

  • SSDEEP

    768:BCB8S+OR7dOahyoHokBtqN74W7bZZmYb9PyzcjRlYlwa6NVdkPnJJMIBV:BHJaAoHoc2x7bZoYBAcQlwJdMF

Malware Config

Signatures

  • RunningRat

    RunningRat is a remote access trojan first seen in 2018.

  • RunningRat payload 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Sets DLL path for service in the registry 2 TTPs 1 IoCs
  • Loads dropped DLL 7 IoCs
  • Drops file in System32 directory 3 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\server.exe
    "C:\Users\Admin\AppData\Local\Temp\server.exe"
    1⤵
    • Sets DLL path for service in the registry
    • Loads dropped DLL
    • Drops file in System32 directory
    PID:1116
  • C:\Windows\SysWOW64\svchost.exe
    C:\Windows\SysWOW64\svchost.exe -k "NETSRDSLS"
    1⤵
      PID:856
    • C:\Windows\SysWOW64\svchost.exe
      C:\Windows\SysWOW64\svchost.exe -k "NETSRDSLS"
      1⤵
      • Loads dropped DLL
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:1500
      • C:\Windows\SysWOW64\NETSRDSLS.exe
        C:\Windows\system32\NETSRDSLS.exe "c:\users\admin\appdata\local\temp\7072851.dll",MainThread
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        PID:2044

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Windows\SysWOW64\NETSRDSLS.exe

      Filesize

      43KB

      MD5

      51138beea3e2c21ec44d0932c71762a8

      SHA1

      8939cf35447b22dd2c6e6f443446acc1bf986d58

      SHA256

      5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

      SHA512

      794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

    • C:\Windows\SysWOW64\NETSRDSLS.exe

      Filesize

      43KB

      MD5

      51138beea3e2c21ec44d0932c71762a8

      SHA1

      8939cf35447b22dd2c6e6f443446acc1bf986d58

      SHA256

      5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

      SHA512

      794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

    • \??\c:\users\admin\appdata\local\temp\7072851.dll

      Filesize

      37KB

      MD5

      c2c9feab31e34c2c504763093520bc6f

      SHA1

      3bf7741bf7ef126a90f3f268b1bdccdf1d449aa1

      SHA256

      2e977b7991ec9a0d19025079f53610fbf851f79dc1b8452edb631cd990022e3b

      SHA512

      a01d4afd5c8f20d51b8b1893ba9c6ba8e5b5b8c79d05f8b17706d930c35067e5fc80897e1aec1b70f61e14c6ec578ba718d4f7dd9920831f88e9c2d13fe0c481

    • \Users\Admin\AppData\Local\Temp\7072851.dll

      Filesize

      37KB

      MD5

      c2c9feab31e34c2c504763093520bc6f

      SHA1

      3bf7741bf7ef126a90f3f268b1bdccdf1d449aa1

      SHA256

      2e977b7991ec9a0d19025079f53610fbf851f79dc1b8452edb631cd990022e3b

      SHA512

      a01d4afd5c8f20d51b8b1893ba9c6ba8e5b5b8c79d05f8b17706d930c35067e5fc80897e1aec1b70f61e14c6ec578ba718d4f7dd9920831f88e9c2d13fe0c481

    • \Users\Admin\AppData\Local\Temp\7072851.dll

      Filesize

      37KB

      MD5

      c2c9feab31e34c2c504763093520bc6f

      SHA1

      3bf7741bf7ef126a90f3f268b1bdccdf1d449aa1

      SHA256

      2e977b7991ec9a0d19025079f53610fbf851f79dc1b8452edb631cd990022e3b

      SHA512

      a01d4afd5c8f20d51b8b1893ba9c6ba8e5b5b8c79d05f8b17706d930c35067e5fc80897e1aec1b70f61e14c6ec578ba718d4f7dd9920831f88e9c2d13fe0c481

    • \Users\Admin\AppData\Local\Temp\7072851.dll

      Filesize

      37KB

      MD5

      c2c9feab31e34c2c504763093520bc6f

      SHA1

      3bf7741bf7ef126a90f3f268b1bdccdf1d449aa1

      SHA256

      2e977b7991ec9a0d19025079f53610fbf851f79dc1b8452edb631cd990022e3b

      SHA512

      a01d4afd5c8f20d51b8b1893ba9c6ba8e5b5b8c79d05f8b17706d930c35067e5fc80897e1aec1b70f61e14c6ec578ba718d4f7dd9920831f88e9c2d13fe0c481

    • \Users\Admin\AppData\Local\Temp\7072851.dll

      Filesize

      37KB

      MD5

      c2c9feab31e34c2c504763093520bc6f

      SHA1

      3bf7741bf7ef126a90f3f268b1bdccdf1d449aa1

      SHA256

      2e977b7991ec9a0d19025079f53610fbf851f79dc1b8452edb631cd990022e3b

      SHA512

      a01d4afd5c8f20d51b8b1893ba9c6ba8e5b5b8c79d05f8b17706d930c35067e5fc80897e1aec1b70f61e14c6ec578ba718d4f7dd9920831f88e9c2d13fe0c481

    • \Users\Admin\AppData\Local\Temp\7072851.dll

      Filesize

      37KB

      MD5

      c2c9feab31e34c2c504763093520bc6f

      SHA1

      3bf7741bf7ef126a90f3f268b1bdccdf1d449aa1

      SHA256

      2e977b7991ec9a0d19025079f53610fbf851f79dc1b8452edb631cd990022e3b

      SHA512

      a01d4afd5c8f20d51b8b1893ba9c6ba8e5b5b8c79d05f8b17706d930c35067e5fc80897e1aec1b70f61e14c6ec578ba718d4f7dd9920831f88e9c2d13fe0c481

    • \Users\Admin\AppData\Local\Temp\7072851.dll

      Filesize

      37KB

      MD5

      c2c9feab31e34c2c504763093520bc6f

      SHA1

      3bf7741bf7ef126a90f3f268b1bdccdf1d449aa1

      SHA256

      2e977b7991ec9a0d19025079f53610fbf851f79dc1b8452edb631cd990022e3b

      SHA512

      a01d4afd5c8f20d51b8b1893ba9c6ba8e5b5b8c79d05f8b17706d930c35067e5fc80897e1aec1b70f61e14c6ec578ba718d4f7dd9920831f88e9c2d13fe0c481

    • \Windows\SysWOW64\NETSRDSLS.exe

      Filesize

      43KB

      MD5

      51138beea3e2c21ec44d0932c71762a8

      SHA1

      8939cf35447b22dd2c6e6f443446acc1bf986d58

      SHA256

      5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

      SHA512

      794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

    • memory/1116-54-0x0000000010000000-0x000000001000F000-memory.dmp

      Filesize

      60KB

    • memory/1116-60-0x0000000000250000-0x000000000025D000-memory.dmp

      Filesize

      52KB

    • memory/1116-58-0x0000000074D61000-0x0000000074D63000-memory.dmp

      Filesize

      8KB

    • memory/2044-65-0x0000000000000000-mapping.dmp