Analysis

  • max time kernel
    81s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15-12-2022 09:12

General

  • Target

    3f6c84150d51188f54330ce514518c879705052abad3f89325e9c279f1d9403e.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
  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3f6c84150d51188f54330ce514518c879705052abad3f89325e9c279f1d9403e.exe
    "C:\Users\Admin\AppData\Local\Temp\3f6c84150d51188f54330ce514518c879705052abad3f89325e9c279f1d9403e.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    PID:3388
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3388 -s 492
      2⤵
      • Program crash
      PID:3396
  • C:\ProgramData\tstg\nwjej.exe
    C:\ProgramData\tstg\nwjej.exe start
    1⤵
    • Executes dropped EXE
    PID:4208
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3388 -ip 3388
    1⤵
      PID:3604

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\ProgramData\tstg\nwjej.exe

      Filesize

      327KB

      MD5

      a533eeaaec1a873d84936633e153dd0a

      SHA1

      a16f84c4039ddccf9960cee21cb8860f2f1cf34c

      SHA256

      3f6c84150d51188f54330ce514518c879705052abad3f89325e9c279f1d9403e

      SHA512

      c599ec24478794dbe3fd1f3124bb93423b610a5d36eb76d625a2401fcc5f368ee40bca9585ba156a06747c593bc415369ae2106ee48b94044a72a59bd1949b79

    • C:\ProgramData\tstg\nwjej.exe

      Filesize

      327KB

      MD5

      a533eeaaec1a873d84936633e153dd0a

      SHA1

      a16f84c4039ddccf9960cee21cb8860f2f1cf34c

      SHA256

      3f6c84150d51188f54330ce514518c879705052abad3f89325e9c279f1d9403e

      SHA512

      c599ec24478794dbe3fd1f3124bb93423b610a5d36eb76d625a2401fcc5f368ee40bca9585ba156a06747c593bc415369ae2106ee48b94044a72a59bd1949b79

    • memory/3388-132-0x0000000000608000-0x000000000061E000-memory.dmp

      Filesize

      88KB

    • memory/3388-133-0x00000000004D0000-0x00000000004D9000-memory.dmp

      Filesize

      36KB

    • memory/3388-134-0x0000000000400000-0x0000000000458000-memory.dmp

      Filesize

      352KB

    • memory/3388-139-0x0000000000608000-0x000000000061E000-memory.dmp

      Filesize

      88KB

    • memory/3388-140-0x0000000000400000-0x0000000000458000-memory.dmp

      Filesize

      352KB

    • memory/4208-137-0x0000000000552000-0x0000000000568000-memory.dmp

      Filesize

      88KB

    • memory/4208-138-0x0000000000400000-0x0000000000458000-memory.dmp

      Filesize

      352KB