Analysis

  • max time kernel
    157s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    08/11/2022, 17:53

General

  • Target

    a8bf7dbcfe29c3c9c0bed1be3cd9cc2935e2bf60313c5721e37fbad5048f67c6.exe

  • Size

    2.2MB

  • MD5

    8cea9bc30046ce76a8d9d211206b9197

  • SHA1

    408b79f4b244be9e288efe7185dc915aaf4a9cbc

  • SHA256

    a8bf7dbcfe29c3c9c0bed1be3cd9cc2935e2bf60313c5721e37fbad5048f67c6

  • SHA512

    95d2b4117ec60f1b0d1611e742da358d77e1488a66e5f87105bb0b1e71ba016e3e153769d51701a47bd8ca85ada38150ee50e7edfc77e1a352a867399d27dcae

  • SSDEEP

    24576:gUHmsocCmYbx4wLMR+OXY0WvY0WvY0WvY0WvY0WvY0WvY0WvY0WPY0WvY0WvY0WI:xGkYbx4wLMR+d7c

Score
10/10

Malware Config

Extracted

Family

systembc

C2

spexblog17.xyz:4044

admstat45.xyz:4044

Signatures

  • SystemBC

    SystemBC is a proxy and remote administration tool first seen in 2019.

  • Executes dropped EXE 1 IoCs
  • Drops file in System32 directory 1 IoCs
  • Drops file in Windows directory 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a8bf7dbcfe29c3c9c0bed1be3cd9cc2935e2bf60313c5721e37fbad5048f67c6.exe
    "C:\Users\Admin\AppData\Local\Temp\a8bf7dbcfe29c3c9c0bed1be3cd9cc2935e2bf60313c5721e37fbad5048f67c6.exe"
    1⤵
    • Drops file in System32 directory
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    PID:972
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {88809D1D-C630-4D2A-A40F-2A0909C1EEBE} S-1-5-21-3845472200-3839195424-595303356-1000:ZERMMMDR\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1104
    • C:\ProgramData\qgvtkr\nuiwtb.exe
      C:\ProgramData\qgvtkr\nuiwtb.exe start2
      2⤵
      • Executes dropped EXE
      PID:1704

Network

        MITRE ATT&CK Matrix

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\ProgramData\qgvtkr\nuiwtb.exe

          Filesize

          2.2MB

          MD5

          8cea9bc30046ce76a8d9d211206b9197

          SHA1

          408b79f4b244be9e288efe7185dc915aaf4a9cbc

          SHA256

          a8bf7dbcfe29c3c9c0bed1be3cd9cc2935e2bf60313c5721e37fbad5048f67c6

          SHA512

          95d2b4117ec60f1b0d1611e742da358d77e1488a66e5f87105bb0b1e71ba016e3e153769d51701a47bd8ca85ada38150ee50e7edfc77e1a352a867399d27dcae

        • C:\ProgramData\qgvtkr\nuiwtb.exe

          Filesize

          2.2MB

          MD5

          8cea9bc30046ce76a8d9d211206b9197

          SHA1

          408b79f4b244be9e288efe7185dc915aaf4a9cbc

          SHA256

          a8bf7dbcfe29c3c9c0bed1be3cd9cc2935e2bf60313c5721e37fbad5048f67c6

          SHA512

          95d2b4117ec60f1b0d1611e742da358d77e1488a66e5f87105bb0b1e71ba016e3e153769d51701a47bd8ca85ada38150ee50e7edfc77e1a352a867399d27dcae

        • memory/972-54-0x0000000074AB1000-0x0000000074AB3000-memory.dmp

          Filesize

          8KB

        • memory/972-55-0x0000000000400000-0x0000000000664000-memory.dmp

          Filesize

          2.4MB

        • memory/972-56-0x0000000000330000-0x0000000000348000-memory.dmp

          Filesize

          96KB

        • memory/972-57-0x0000000000400000-0x0000000000664000-memory.dmp

          Filesize

          2.4MB

        • memory/972-58-0x0000000000330000-0x0000000000348000-memory.dmp

          Filesize

          96KB