Resubmissions

17/12/2022, 12:07

221217-pam9gabe3y 10

15/12/2022, 14:38

221215-rzz1nsce94 10

Analysis

  • max time kernel
    1187s
  • max time network
    1191s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    17/12/2022, 12:07

General

  • Target

    6CA5.exe

  • Size

    327KB

  • MD5

    a533eeaaec1a873d84936633e153dd0a

  • SHA1

    a16f84c4039ddccf9960cee21cb8860f2f1cf34c

  • SHA256

    3f6c84150d51188f54330ce514518c879705052abad3f89325e9c279f1d9403e

  • SHA512

    c599ec24478794dbe3fd1f3124bb93423b610a5d36eb76d625a2401fcc5f368ee40bca9585ba156a06747c593bc415369ae2106ee48b94044a72a59bd1949b79

  • SSDEEP

    6144:3YktL97wOl/cNqWoZAR5Lv2mXMcXQEjSbjfxur/tb:d57rl/ccJ4omxjSbjJurR

Score
10/10

Malware Config

Extracted

Family

systembc

C2

109.205.214.18:443

Signatures

  • SystemBC

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

  • Executes dropped EXE 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\6CA5.exe
    "C:\Users\Admin\AppData\Local\Temp\6CA5.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    PID:1184
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {1D5B761E-E049-44B5-AD14-A0A808448793} S-1-5-18:NT AUTHORITY\System:Service:
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1748
    • C:\ProgramData\mmxrbk\nkih.exe
      C:\ProgramData\mmxrbk\nkih.exe start
      2⤵
      • Executes dropped EXE
      PID:904

Network

        MITRE ATT&CK Matrix

        Replay Monitor

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        Downloads

        • C:\ProgramData\mmxrbk\nkih.exe

          Filesize

          327KB

          MD5

          a533eeaaec1a873d84936633e153dd0a

          SHA1

          a16f84c4039ddccf9960cee21cb8860f2f1cf34c

          SHA256

          3f6c84150d51188f54330ce514518c879705052abad3f89325e9c279f1d9403e

          SHA512

          c599ec24478794dbe3fd1f3124bb93423b610a5d36eb76d625a2401fcc5f368ee40bca9585ba156a06747c593bc415369ae2106ee48b94044a72a59bd1949b79

        • C:\ProgramData\mmxrbk\nkih.exe

          Filesize

          327KB

          MD5

          a533eeaaec1a873d84936633e153dd0a

          SHA1

          a16f84c4039ddccf9960cee21cb8860f2f1cf34c

          SHA256

          3f6c84150d51188f54330ce514518c879705052abad3f89325e9c279f1d9403e

          SHA512

          c599ec24478794dbe3fd1f3124bb93423b610a5d36eb76d625a2401fcc5f368ee40bca9585ba156a06747c593bc415369ae2106ee48b94044a72a59bd1949b79

        • memory/904-63-0x000000000061B000-0x0000000000631000-memory.dmp

          Filesize

          88KB

        • memory/904-64-0x0000000000400000-0x0000000000458000-memory.dmp

          Filesize

          352KB

        • memory/904-65-0x000000000061B000-0x0000000000631000-memory.dmp

          Filesize

          88KB

        • memory/1184-54-0x0000000074BB1000-0x0000000074BB3000-memory.dmp

          Filesize

          8KB

        • memory/1184-55-0x00000000005FB000-0x0000000000611000-memory.dmp

          Filesize

          88KB

        • memory/1184-56-0x0000000000220000-0x0000000000229000-memory.dmp

          Filesize

          36KB

        • memory/1184-57-0x0000000000400000-0x0000000000458000-memory.dmp

          Filesize

          352KB

        • memory/1184-61-0x00000000005FB000-0x0000000000611000-memory.dmp

          Filesize

          88KB