Analysis

  • max time kernel
    149s
  • max time network
    165s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    27-03-2022 21:00

General

  • Target

    3c9ef5745181c229512ed61a6cb25882eb485ba295c6bb10c4a3e6aefb6533c5.exe

  • Size

    273KB

  • MD5

    db48d4c7abbfe0c4daeba6ae790a193f

  • SHA1

    ee73e2598351f8088cb20d84398e45e7b0092d83

  • SHA256

    3c9ef5745181c229512ed61a6cb25882eb485ba295c6bb10c4a3e6aefb6533c5

  • SHA512

    dda02e130458496878850278bef01fb4660107acce9cb9d44308713ed960173645c68e5fceab54de1a63fa232061b2d31ddd68fd6daa718379dfb461d5784c5d

Malware Config

Extracted

Family

systembc

C2

31.44.185.6:4001

31.44.185.11:4001

Signatures

  • SystemBC

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

  • suricata: ET MALWARE Single char EXE direct download likely trojan (multiple families)

    suricata: ET MALWARE Single char EXE direct download likely trojan (multiple families)

  • suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile

    suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile

  • suricata: ET MALWARE Win32/SystemBC CnC Checkin

    suricata: ET MALWARE Win32/SystemBC CnC Checkin

  • 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\3c9ef5745181c229512ed61a6cb25882eb485ba295c6bb10c4a3e6aefb6533c5.exe
    "C:\Users\Admin\AppData\Local\Temp\3c9ef5745181c229512ed61a6cb25882eb485ba295c6bb10c4a3e6aefb6533c5.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    PID:868
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 868 -s 932
      2⤵
      • Program crash
      PID:3844
  • C:\ProgramData\pxmagig\gpxx.exe
    C:\ProgramData\pxmagig\gpxx.exe start
    1⤵
    • Executes dropped EXE
    PID:2848
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 868 -ip 868
    1⤵
      PID:648

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\ProgramData\pxmagig\gpxx.exe

      Filesize

      273KB

      MD5

      db48d4c7abbfe0c4daeba6ae790a193f

      SHA1

      ee73e2598351f8088cb20d84398e45e7b0092d83

      SHA256

      3c9ef5745181c229512ed61a6cb25882eb485ba295c6bb10c4a3e6aefb6533c5

      SHA512

      dda02e130458496878850278bef01fb4660107acce9cb9d44308713ed960173645c68e5fceab54de1a63fa232061b2d31ddd68fd6daa718379dfb461d5784c5d

    • C:\ProgramData\pxmagig\gpxx.exe

      Filesize

      273KB

      MD5

      db48d4c7abbfe0c4daeba6ae790a193f

      SHA1

      ee73e2598351f8088cb20d84398e45e7b0092d83

      SHA256

      3c9ef5745181c229512ed61a6cb25882eb485ba295c6bb10c4a3e6aefb6533c5

      SHA512

      dda02e130458496878850278bef01fb4660107acce9cb9d44308713ed960173645c68e5fceab54de1a63fa232061b2d31ddd68fd6daa718379dfb461d5784c5d

    • memory/868-130-0x0000000000648000-0x0000000000651000-memory.dmp

      Filesize

      36KB

    • memory/868-131-0x0000000000648000-0x0000000000651000-memory.dmp

      Filesize

      36KB

    • memory/868-132-0x00000000001F0000-0x00000000001F9000-memory.dmp

      Filesize

      36KB

    • memory/868-133-0x0000000000400000-0x0000000000488000-memory.dmp

      Filesize

      544KB

    • memory/2848-136-0x0000000000735000-0x000000000073E000-memory.dmp

      Filesize

      36KB

    • memory/2848-137-0x0000000000735000-0x000000000073E000-memory.dmp

      Filesize

      36KB

    • memory/2848-138-0x0000000000400000-0x0000000000488000-memory.dmp

      Filesize

      544KB