Overview

overview

10

Static

static

702a1b613e...a3.exe

windows7_x64

10

702a1b613e...a3.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    144s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    12-02-2022 03:15

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General

  • Target

    702a1b613e1293c407192b59d890b208f6a3b0c71c75f292b9d45b566591eda3.exe

  • Size

    209KB

  • MD5

    5cdf1b191b0b18d04353640f96c5daef

  • SHA1

    ea46f37af7b78d91934ab0010abaf436437585f9

  • SHA256

    702a1b613e1293c407192b59d890b208f6a3b0c71c75f292b9d45b566591eda3

  • SHA512

    3439b69b3e6db586dc8733094e2ca265a67c58e499c163f4be7d780bf2febe18819163b7e34108a4e3ff6f94e7f770345c099df69b50c82f455dfb15622d0be4

Score
10/10
systembctrojan

Malware Config

Extracted

Family

systembc

C2

195.2.73.44:4001

Signatures

  • Suspicious use of NtCreateProcessExOtherParentProcess 1 IoCs
  • SystemBC

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

    trojansystembc
  • Drops file in Windows directory 11 IoCs
  • Program crash 1 IoCs
  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\702a1b613e1293c407192b59d890b208f6a3b0c71c75f292b9d45b566591eda3.exe
    "C:\Users\Admin\AppData\Local\Temp\702a1b613e1293c407192b59d890b208f6a3b0c71c75f292b9d45b566591eda3.exe"
    1⤵
    • Drops file in Windows directory
    PID:1036
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1036 -s 480
      2⤵
      • Drops file in Windows directory
      • Program crash
      • Checks processor information in registry
      • Enumerates system info in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:1444
  • C:\Users\Admin\AppData\Local\Temp\702a1b613e1293c407192b59d890b208f6a3b0c71c75f292b9d45b566591eda3.exe
    C:\Users\Admin\AppData\Local\Temp\702a1b613e1293c407192b59d890b208f6a3b0c71c75f292b9d45b566591eda3.exe start
    1⤵
      PID:2040
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv
      1⤵
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      PID:2796
    • C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe
      C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe -Embedding
      1⤵
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      PID:5056
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1036 -ip 1036
      1⤵
      • Suspicious use of NtCreateProcessExOtherParentProcess
      • Suspicious use of WriteProcessMemory
      PID:5048

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • memory/1036-130-0x0000000000030000-0x0000000000036000-memory.dmp
      Filesize

      24KB

      Download
    • memory/1036-131-0x00000000001C0000-0x00000000001C5000-memory.dmp
      Filesize

      20KB

      Download
    • memory/1036-132-0x0000000000400000-0x0000000000407000-memory.dmp
      Filesize

      28KB

      Download
    • memory/2040-136-0x0000000000400000-0x0000000000407000-memory.dmp
      Filesize

      28KB

      Download
    • memory/2796-133-0x000001F697990000-0x000001F6979A0000-memory.dmp
      Filesize

      64KB

      Download
    • memory/2796-134-0x000001F698020000-0x000001F698030000-memory.dmp
      Filesize

      64KB

      Download
    • memory/2796-135-0x000001F69A710000-0x000001F69A714000-memory.dmp
      Filesize

      16KB

      Download