Analysis

  • max time kernel
    145s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-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 2 IoCs
  • Suspicious use of WriteProcessMemory 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:1484
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {9606F752-8187-4FF6-AB77-030002174F2E} S-1-5-21-2872745919-2748461613-2989606286-1000:CCJBVTGQ\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2868
    • C:\ProgramData\ejqa\dehms.exe
      C:\ProgramData\ejqa\dehms.exe
      2⤵
      • 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:2864

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\ejqa\dehms.exe

    Filesize

    1.7MB

    MD5

    efac52cc9304919d4f9e49c56bdbd484

    SHA1

    68e90fd0a473ba822bb4f708d718afcbbd660850

    SHA256

    e903bd6ec4817fca7a718b770d6d6a509c7e522cbebb41bd26e48bfe009d0510

    SHA512

    9185437c21c56772d3dd7172269b3569380b518e78c8cb9dcf947968476d4d79beb2aeb31da66d3736a2a0f3be88d3caf86d9ba79c59608aaca196c409466ada

  • C:\Windows\Tasks\Test Task17.job

    Filesize

    214B

    MD5

    4887385ed6b14d359e6297c851044acc

    SHA1

    c0d431751afb63e8fb4beb428bd454003afcc77a

    SHA256

    5718e266f7a2450202a8967a179986d1288de84848755586f080cab002f38c0e

    SHA512

    0e25625535d1d4b7aff5a7c12cb4a60dabdb57133b4aa28dc25fed499ffa2e30c3709d3974839d570fe516158cf21a467802f5788479e4c83eb3e95187bc9f62

  • memory/1484-10-0x0000000000400000-0x0000000000856000-memory.dmp

    Filesize

    4.3MB

  • memory/1484-11-0x0000000000400000-0x0000000000856000-memory.dmp

    Filesize

    4.3MB

  • memory/1484-6-0x0000000000400000-0x0000000000856000-memory.dmp

    Filesize

    4.3MB

  • memory/1484-7-0x0000000000400000-0x0000000000856000-memory.dmp

    Filesize

    4.3MB

  • memory/1484-8-0x0000000000400000-0x0000000000856000-memory.dmp

    Filesize

    4.3MB

  • memory/1484-9-0x0000000000400000-0x0000000000856000-memory.dmp

    Filesize

    4.3MB

  • memory/1484-0-0x0000000000400000-0x0000000000856000-memory.dmp

    Filesize

    4.3MB

  • memory/1484-4-0x0000000000400000-0x0000000000856000-memory.dmp

    Filesize

    4.3MB

  • memory/1484-2-0x0000000000401000-0x0000000000403000-memory.dmp

    Filesize

    8KB

  • memory/1484-26-0x0000000000400000-0x0000000000856000-memory.dmp

    Filesize

    4.3MB

  • memory/1484-25-0x0000000000400000-0x0000000000856000-memory.dmp

    Filesize

    4.3MB

  • memory/1484-1-0x0000000077CA0000-0x0000000077CA2000-memory.dmp

    Filesize

    8KB

  • memory/1484-23-0x0000000000400000-0x0000000000856000-memory.dmp

    Filesize

    4.3MB

  • memory/1484-18-0x0000000000400000-0x0000000000856000-memory.dmp

    Filesize

    4.3MB

  • memory/2864-19-0x0000000000400000-0x0000000000856000-memory.dmp

    Filesize

    4.3MB

  • memory/2864-28-0x0000000000400000-0x0000000000856000-memory.dmp

    Filesize

    4.3MB

  • memory/2864-21-0x0000000000400000-0x0000000000856000-memory.dmp

    Filesize

    4.3MB

  • memory/2864-22-0x0000000000400000-0x0000000000856000-memory.dmp

    Filesize

    4.3MB

  • memory/2864-17-0x0000000000400000-0x0000000000856000-memory.dmp

    Filesize

    4.3MB

  • memory/2864-24-0x0000000000400000-0x0000000000856000-memory.dmp

    Filesize

    4.3MB

  • memory/2864-15-0x0000000000400000-0x0000000000856000-memory.dmp

    Filesize

    4.3MB

  • memory/2864-14-0x0000000000400000-0x0000000000856000-memory.dmp

    Filesize

    4.3MB

  • memory/2864-27-0x0000000000400000-0x0000000000856000-memory.dmp

    Filesize

    4.3MB

  • memory/2864-20-0x0000000000400000-0x0000000000856000-memory.dmp

    Filesize

    4.3MB

  • memory/2864-29-0x0000000000400000-0x0000000000856000-memory.dmp

    Filesize

    4.3MB

  • memory/2864-30-0x0000000000400000-0x0000000000856000-memory.dmp

    Filesize

    4.3MB

  • memory/2864-31-0x0000000000400000-0x0000000000856000-memory.dmp

    Filesize

    4.3MB

  • memory/2864-32-0x0000000000400000-0x0000000000856000-memory.dmp

    Filesize

    4.3MB

  • memory/2864-33-0x0000000000400000-0x0000000000856000-memory.dmp

    Filesize

    4.3MB

  • memory/2864-34-0x0000000000400000-0x0000000000856000-memory.dmp

    Filesize

    4.3MB

  • memory/2864-35-0x0000000000400000-0x0000000000856000-memory.dmp

    Filesize

    4.3MB

  • memory/2864-36-0x0000000000400000-0x0000000000856000-memory.dmp

    Filesize

    4.3MB