Analysis

  • max time kernel
    146s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15-06-2023 23:58

General

  • Target

    i.exe

  • Size

    218KB

  • MD5

    cdc67700f25eaed1417264c4bdec03d3

  • SHA1

    56639e9414e6ee8394d940d62778475ddf071290

  • SHA256

    fdd4cca0516be799c954e96be26b2d04e42ea0bac1edb00604412914bae2f100

  • SHA512

    a2b38a1d4d0cb57532f3feb2efa1fb345c03df9114dfb2dcc93286e19b96eb5e182bd79d070a0e4fccf1980f47effc9b511dbb0074bba69bee80098317e08038

  • SSDEEP

    3072:ErayULJ3h3C59R+rVZxzAskAGbhAzT69ohOP+L+h7b/MxuCwLgNHCDml:E2yUL1JC4fxUspGbhgT62hO2LC2HCa

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
  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\i.exe
    "C:\Users\Admin\AppData\Local\Temp\i.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    PID:4608
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4608 -s 956
      2⤵
      • Program crash
      PID:4032
  • C:\ProgramData\njwkx\xfbxb.exe
    C:\ProgramData\njwkx\xfbxb.exe start
    1⤵
    • Executes dropped EXE
    PID:1144
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 4608 -ip 4608
    1⤵
      PID:2500

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\ProgramData\njwkx\xfbxb.exe

      Filesize

      218KB

      MD5

      cdc67700f25eaed1417264c4bdec03d3

      SHA1

      56639e9414e6ee8394d940d62778475ddf071290

      SHA256

      fdd4cca0516be799c954e96be26b2d04e42ea0bac1edb00604412914bae2f100

      SHA512

      a2b38a1d4d0cb57532f3feb2efa1fb345c03df9114dfb2dcc93286e19b96eb5e182bd79d070a0e4fccf1980f47effc9b511dbb0074bba69bee80098317e08038

    • C:\ProgramData\njwkx\xfbxb.exe

      Filesize

      218KB

      MD5

      cdc67700f25eaed1417264c4bdec03d3

      SHA1

      56639e9414e6ee8394d940d62778475ddf071290

      SHA256

      fdd4cca0516be799c954e96be26b2d04e42ea0bac1edb00604412914bae2f100

      SHA512

      a2b38a1d4d0cb57532f3feb2efa1fb345c03df9114dfb2dcc93286e19b96eb5e182bd79d070a0e4fccf1980f47effc9b511dbb0074bba69bee80098317e08038

    • memory/1144-143-0x0000000000400000-0x000000000045F000-memory.dmp

      Filesize

      380KB

    • memory/4608-134-0x00000000006F0000-0x00000000006F9000-memory.dmp

      Filesize

      36KB

    • memory/4608-135-0x0000000000400000-0x000000000045F000-memory.dmp

      Filesize

      380KB

    • memory/4608-154-0x0000000000400000-0x000000000045F000-memory.dmp

      Filesize

      380KB