Analysis

  • max time kernel
    141s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250217-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/03/2025, 00:44

General

  • Target

    quarantine/soudneff.exe

  • Size

    1.7MB

  • MD5

    efac52cc9304919d4f9e49c56bdbd484

  • SHA1

    68e90fd0a473ba822bb4f708d718afcbbd660850

  • SHA256

    e903bd6ec4817fca7a718b770d6d6a509c7e522cbebb41bd26e48bfe009d0510

  • SHA512

    9185437c21c56772d3dd7172269b3569380b518e78c8cb9dcf947968476d4d79beb2aeb31da66d3736a2a0f3be88d3caf86d9ba79c59608aaca196c409466ada

  • SSDEEP

    49152:dWiPyNzLHax6WxKPQx1GyGe4/xU7VNT1xMJ1NxjnW8EtV:dhGW4OOCbhGQ

Malware Config

Extracted

Family

systembc

C2

towerbingobongoboom.com

213.209.150.137

Signatures

  • SystemBC

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

  • Systembc family
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 2 IoCs
  • Checks BIOS information in registry 2 TTPs 4 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Identifies Wine through registry keys 2 TTPs 2 IoCs

    Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Drops file in Windows directory 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\quarantine\soudneff.exe
    "C:\Users\Admin\AppData\Local\Temp\quarantine\soudneff.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Identifies Wine through registry keys
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    PID:3212
  • C:\ProgramData\solax\tuwct.exe
    C:\ProgramData\solax\tuwct.exe
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Executes dropped EXE
    • Identifies Wine through registry keys
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    PID:4568

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\solax\tuwct.exe

    Filesize

    1.7MB

    MD5

    efac52cc9304919d4f9e49c56bdbd484

    SHA1

    68e90fd0a473ba822bb4f708d718afcbbd660850

    SHA256

    e903bd6ec4817fca7a718b770d6d6a509c7e522cbebb41bd26e48bfe009d0510

    SHA512

    9185437c21c56772d3dd7172269b3569380b518e78c8cb9dcf947968476d4d79beb2aeb31da66d3736a2a0f3be88d3caf86d9ba79c59608aaca196c409466ada

  • C:\Windows\Tasks\Test Task17.job

    Filesize

    234B

    MD5

    a02f4af5d3ed84a4781645feb7569069

    SHA1

    4ee8a79ee65a554378093162b261391b63731e17

    SHA256

    256175e76f243996362a4e5481e3b5d2a6b75a17f1970d158d37ccdaaaa283ea

    SHA512

    a0650a0bd4493748d066c668f15c958bcdeb778ed0a4945fc24ec439e7a06808c1115c075a80b66865d43180e1313811e6d7dac8cbb43bf1e0c18aa69b49fcf4

  • memory/3212-3-0x0000000000400000-0x0000000000856000-memory.dmp

    Filesize

    4.3MB

  • memory/3212-18-0x0000000000400000-0x0000000000856000-memory.dmp

    Filesize

    4.3MB

  • memory/3212-6-0x0000000000400000-0x0000000000856000-memory.dmp

    Filesize

    4.3MB

  • memory/3212-7-0x0000000000400000-0x0000000000856000-memory.dmp

    Filesize

    4.3MB

  • memory/3212-8-0x0000000000400000-0x0000000000856000-memory.dmp

    Filesize

    4.3MB

  • memory/3212-9-0x0000000000400000-0x0000000000856000-memory.dmp

    Filesize

    4.3MB

  • memory/3212-10-0x0000000000400000-0x0000000000856000-memory.dmp

    Filesize

    4.3MB

  • memory/3212-2-0x0000000000401000-0x0000000000403000-memory.dmp

    Filesize

    8KB

  • memory/3212-26-0x0000000000400000-0x0000000000856000-memory.dmp

    Filesize

    4.3MB

  • memory/3212-24-0x0000000000400000-0x0000000000856000-memory.dmp

    Filesize

    4.3MB

  • memory/3212-1-0x00000000773A4000-0x00000000773A6000-memory.dmp

    Filesize

    8KB

  • memory/3212-22-0x0000000000400000-0x0000000000856000-memory.dmp

    Filesize

    4.3MB

  • memory/3212-0-0x0000000000400000-0x0000000000856000-memory.dmp

    Filesize

    4.3MB

  • memory/4568-19-0x0000000000400000-0x0000000000856000-memory.dmp

    Filesize

    4.3MB

  • memory/4568-28-0x0000000000400000-0x0000000000856000-memory.dmp

    Filesize

    4.3MB

  • memory/4568-20-0x0000000000400000-0x0000000000856000-memory.dmp

    Filesize

    4.3MB

  • memory/4568-21-0x0000000000400000-0x0000000000856000-memory.dmp

    Filesize

    4.3MB

  • memory/4568-16-0x0000000000400000-0x0000000000856000-memory.dmp

    Filesize

    4.3MB

  • memory/4568-23-0x0000000000400000-0x0000000000856000-memory.dmp

    Filesize

    4.3MB

  • memory/4568-14-0x0000000000400000-0x0000000000856000-memory.dmp

    Filesize

    4.3MB

  • memory/4568-13-0x0000000000400000-0x0000000000856000-memory.dmp

    Filesize

    4.3MB

  • memory/4568-27-0x0000000000400000-0x0000000000856000-memory.dmp

    Filesize

    4.3MB

  • memory/4568-17-0x0000000000400000-0x0000000000856000-memory.dmp

    Filesize

    4.3MB

  • memory/4568-29-0x0000000000400000-0x0000000000856000-memory.dmp

    Filesize

    4.3MB

  • memory/4568-30-0x0000000000400000-0x0000000000856000-memory.dmp

    Filesize

    4.3MB

  • memory/4568-31-0x0000000000400000-0x0000000000856000-memory.dmp

    Filesize

    4.3MB

  • memory/4568-32-0x0000000000400000-0x0000000000856000-memory.dmp

    Filesize

    4.3MB

  • memory/4568-33-0x0000000000400000-0x0000000000856000-memory.dmp

    Filesize

    4.3MB

  • memory/4568-34-0x0000000000400000-0x0000000000856000-memory.dmp

    Filesize

    4.3MB

  • memory/4568-35-0x0000000000400000-0x0000000000856000-memory.dmp

    Filesize

    4.3MB