Analysis

  • max time kernel
    151s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-08-2022 20:37

General

  • Target

    server.exe

  • Size

    68KB

  • MD5

    b6e11c84a80412f8cb7330ab9fcc149e

  • SHA1

    266266241adc1907f2e6d8d1d15f8aeff89deb78

  • SHA256

    3cda160efdccaa80d566e2161b0e0d1541a9cb8d282d7636093e6e249235c1b3

  • SHA512

    f6a68c18e662dabdd9fa1e1eb8b92e91642fda4dae7fda4847b37b9e2408d97e45996cae14b6c0afc4c8068c18e2f945f4c0c0726c4b4009876636a4dbb46784

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 4 IoCs
  • Drops file in System32 directory 3 IoCs
  • Suspicious use of WriteProcessMemory 3 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:836
  • C:\Windows\SysWOW64\svchost.exe
    C:\Windows\SysWOW64\svchost.exe -k "NETSRDSLS"
    1⤵
      PID:2340
    • 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:4932
      • C:\Windows\SysWOW64\NETSRDSLS.exe
        C:\Windows\system32\NETSRDSLS.exe "c:\users\admin\appdata\local\temp\240545031.dll",MainThread
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        PID:2040

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\240545031.dll

      Filesize

      37KB

      MD5

      dc1e8352301906fff28e0b5333370920

      SHA1

      115aa527bc1e9cbd6787b2635975bb645033a9f8

      SHA256

      278e1137e3880bc5404ac5fa7f0b8670b231d128f872d612865546b110c47e15

      SHA512

      86135b36789452b647e2f1657d3f73da708a71e368be6579110df6c54a248e855f2616763a48186024ab028bae3f2e28b8edb8c64634db92a91a220e81a93d13

    • C:\Users\Admin\AppData\Local\Temp\240545031.dll

      Filesize

      37KB

      MD5

      dc1e8352301906fff28e0b5333370920

      SHA1

      115aa527bc1e9cbd6787b2635975bb645033a9f8

      SHA256

      278e1137e3880bc5404ac5fa7f0b8670b231d128f872d612865546b110c47e15

      SHA512

      86135b36789452b647e2f1657d3f73da708a71e368be6579110df6c54a248e855f2616763a48186024ab028bae3f2e28b8edb8c64634db92a91a220e81a93d13

    • C:\Users\Admin\AppData\Local\Temp\240545031.dll

      Filesize

      37KB

      MD5

      dc1e8352301906fff28e0b5333370920

      SHA1

      115aa527bc1e9cbd6787b2635975bb645033a9f8

      SHA256

      278e1137e3880bc5404ac5fa7f0b8670b231d128f872d612865546b110c47e15

      SHA512

      86135b36789452b647e2f1657d3f73da708a71e368be6579110df6c54a248e855f2616763a48186024ab028bae3f2e28b8edb8c64634db92a91a220e81a93d13

    • C:\Users\Admin\AppData\Local\Temp\240545031.dll

      Filesize

      37KB

      MD5

      dc1e8352301906fff28e0b5333370920

      SHA1

      115aa527bc1e9cbd6787b2635975bb645033a9f8

      SHA256

      278e1137e3880bc5404ac5fa7f0b8670b231d128f872d612865546b110c47e15

      SHA512

      86135b36789452b647e2f1657d3f73da708a71e368be6579110df6c54a248e855f2616763a48186024ab028bae3f2e28b8edb8c64634db92a91a220e81a93d13

    • C:\Windows\SysWOW64\NETSRDSLS.exe

      Filesize

      60KB

      MD5

      889b99c52a60dd49227c5e485a016679

      SHA1

      8fa889e456aa646a4d0a4349977430ce5fa5e2d7

      SHA256

      6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910

      SHA512

      08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641

    • C:\Windows\SysWOW64\NETSRDSLS.exe

      Filesize

      60KB

      MD5

      889b99c52a60dd49227c5e485a016679

      SHA1

      8fa889e456aa646a4d0a4349977430ce5fa5e2d7

      SHA256

      6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910

      SHA512

      08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641

    • \??\c:\users\admin\appdata\local\temp\240545031.dll

      Filesize

      37KB

      MD5

      dc1e8352301906fff28e0b5333370920

      SHA1

      115aa527bc1e9cbd6787b2635975bb645033a9f8

      SHA256

      278e1137e3880bc5404ac5fa7f0b8670b231d128f872d612865546b110c47e15

      SHA512

      86135b36789452b647e2f1657d3f73da708a71e368be6579110df6c54a248e855f2616763a48186024ab028bae3f2e28b8edb8c64634db92a91a220e81a93d13

    • memory/836-132-0x0000000010000000-0x000000001000F000-memory.dmp

      Filesize

      60KB

    • memory/836-138-0x0000000000510000-0x000000000051D000-memory.dmp

      Filesize

      52KB

    • memory/2040-141-0x0000000000000000-mapping.dmp