Analysis

  • max time kernel
    144s
  • max time network
    147s
  • platform
    windows10-1703_x64
  • resource
    win10-20220901-en
  • resource tags

    arch:x64arch:x86image:win10-20220901-enlocale:en-usos:windows10-1703-x64system
  • submitted
    15-11-2022 11:31

General

  • Target

    3735585ffb3ec5d0493b3e3e44323ecb9ef11c78f8ccda56e2d86c02a103f736.exe

  • Size

    8.2MB

  • MD5

    8aaa63d32bc201244a89f771d37c5523

  • SHA1

    9f0b6da7824c11e18bfc67fef016dc4c6d034c6e

  • SHA256

    3735585ffb3ec5d0493b3e3e44323ecb9ef11c78f8ccda56e2d86c02a103f736

  • SHA512

    d75ef26bff91d50fe959a86f20db7813bf8fd6e16ac7d9b17b22401eab29841b60f79bbdd472a1fd29aff7b2f8c8a186f6baf5f29225deb7f879cb76208eaf76

  • SSDEEP

    98304:0nf7Zg7kBIjYXCz76QOph+F7ccTDhUCuEw3YtVD8flWyK40uLlcKLh+5D:U0jrf6QOph+LsyTyKruJV0D

Malware Config

Extracted

Family

systembc

C2

89.22.225.242:4193

195.2.93.22:4193

Signatures

  • SystemBC

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

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Checks BIOS information in registry 2 TTPs 4 IoCs

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

  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Writes to the Master Boot Record (MBR) 1 TTPs 2 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 24 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3735585ffb3ec5d0493b3e3e44323ecb9ef11c78f8ccda56e2d86c02a103f736.exe
    "C:\Users\Admin\AppData\Local\Temp\3735585ffb3ec5d0493b3e3e44323ecb9ef11c78f8ccda56e2d86c02a103f736.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Writes to the Master Boot Record (MBR)
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2764
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\system32\schtasks.exe" /create /tn COMSurrogate /f /sc onlogon /rl highest /tr "C:\Users\Admin\hohowoha felite pabor yawexe winebi quejita poveh vakor vavajofe gaso kit\hiwolos febocisi moq kadi.exe"
      2⤵
      • Creates scheduled task(s)
      PID:4972
    • C:\Users\Admin\hohowoha felite pabor yawexe winebi quejita poveh vakor vavajofe gaso kit\hiwolos febocisi moq kadi.exe
      "C:\Users\Admin\hohowoha felite pabor yawexe winebi quejita poveh vakor vavajofe gaso kit\hiwolos febocisi moq kadi.exe"
      2⤵
      • Identifies VirtualBox via ACPI registry values (likely anti-VM)
      • Executes dropped EXE
      • Checks BIOS information in registry
      • Checks whether UAC is enabled
      • Writes to the Master Boot Record (MBR)
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4492
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
        3⤵
          PID:1948
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /c chcp 65001 && ping 127.0.0.1 && DEL /F /S /Q /A "C:\Users\Admin\AppData\Local\Temp\3735585ffb3ec5d0493b3e3e44323ecb9ef11c78f8ccda56e2d86c02a103f736.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:532
        • C:\Windows\SysWOW64\chcp.com
          chcp 65001
          3⤵
            PID:1224
          • C:\Windows\SysWOW64\PING.EXE
            ping 127.0.0.1
            3⤵
            • Runs ping.exe
            PID:4928

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\ProgramData\mntemp

        Filesize

        16B

        MD5

        74b67ffc2d06bbc77a8ab989ed932c04

        SHA1

        60230f37be50ed8c592aedb0cdd7e344ceca2689

        SHA256

        76e755d18897a0991b938706181ac99cf4e7b16d7364214072de155189a38215

        SHA512

        a66f7ae45c15cc3a54d1212ec331f575d8589895f6e4a8626a8dfeffe8be66d62b3c26ab781bc6d3e61f738b1aa64259d60651456c4d3bf3afeed8bf17fd9e56

      • C:\Users\Admin\hohowoha felite pabor yawexe winebi quejita poveh vakor vavajofe gaso kit\hiwolos febocisi moq kadi.exe

        Filesize

        482.6MB

        MD5

        26ba946c7c58efd7299717995b4ec2a2

        SHA1

        8b608f1813a8f7ea3da4bf39f59bdc5381ea5a49

        SHA256

        f541d135d44c7fa376ec86e04cab29e2ba69624585cf427a7e8205d320c01eb6

        SHA512

        923cd18bf9f95c4de25ba881d42e8b40979e4ba2c88080407e7cebd34e811baad4e727ba0eb8c6306efa854d514d759c662ed1ad1d41d6eb35a5c9c70eb00eef

      • C:\Users\Admin\hohowoha felite pabor yawexe winebi quejita poveh vakor vavajofe gaso kit\hiwolos febocisi moq kadi.exe

        Filesize

        480.7MB

        MD5

        bdfec0b1acdef636f45c63d4d9af18dd

        SHA1

        5b679910970936ec7b41e5f74a9ba55a0fe7da60

        SHA256

        04b87abbcc5a9c693a57875c48cc23c38f7721a66a9f54a4e74f94b8a228d19f

        SHA512

        ed61850f280b1dc49e08c0440df0317a90ad30a91ea3abf264bdc1ef56a14b429cd53d78574d08e03a5566fbb41c410ed0955369b0f9c6a16416013dabcb0fdc

      • memory/532-209-0x0000000000000000-mapping.dmp

      • memory/1224-239-0x0000000000000000-mapping.dmp

      • memory/1948-355-0x0000000000400000-0x0000000000407000-memory.dmp

        Filesize

        28KB

      • memory/2764-157-0x0000000077450000-0x00000000775DE000-memory.dmp

        Filesize

        1.6MB

      • memory/2764-150-0x0000000077450000-0x00000000775DE000-memory.dmp

        Filesize

        1.6MB

      • memory/2764-121-0x0000000077450000-0x00000000775DE000-memory.dmp

        Filesize

        1.6MB

      • memory/2764-122-0x0000000077450000-0x00000000775DE000-memory.dmp

        Filesize

        1.6MB

      • memory/2764-159-0x00000000012A0000-0x0000000001AD0000-memory.dmp

        Filesize

        8.2MB

      • memory/2764-124-0x0000000077450000-0x00000000775DE000-memory.dmp

        Filesize

        1.6MB

      • memory/2764-125-0x0000000077450000-0x00000000775DE000-memory.dmp

        Filesize

        1.6MB

      • memory/2764-126-0x0000000077450000-0x00000000775DE000-memory.dmp

        Filesize

        1.6MB

      • memory/2764-128-0x0000000077450000-0x00000000775DE000-memory.dmp

        Filesize

        1.6MB

      • memory/2764-127-0x0000000077450000-0x00000000775DE000-memory.dmp

        Filesize

        1.6MB

      • memory/2764-130-0x0000000077450000-0x00000000775DE000-memory.dmp

        Filesize

        1.6MB

      • memory/2764-131-0x00000000012A0000-0x0000000001AD0000-memory.dmp

        Filesize

        8.2MB

      • memory/2764-132-0x0000000077450000-0x00000000775DE000-memory.dmp

        Filesize

        1.6MB

      • memory/2764-133-0x0000000077450000-0x00000000775DE000-memory.dmp

        Filesize

        1.6MB

      • memory/2764-134-0x0000000077450000-0x00000000775DE000-memory.dmp

        Filesize

        1.6MB

      • memory/2764-135-0x0000000077450000-0x00000000775DE000-memory.dmp

        Filesize

        1.6MB

      • memory/2764-137-0x0000000077450000-0x00000000775DE000-memory.dmp

        Filesize

        1.6MB

      • memory/2764-136-0x0000000077450000-0x00000000775DE000-memory.dmp

        Filesize

        1.6MB

      • memory/2764-129-0x0000000077450000-0x00000000775DE000-memory.dmp

        Filesize

        1.6MB

      • memory/2764-138-0x0000000077450000-0x00000000775DE000-memory.dmp

        Filesize

        1.6MB

      • memory/2764-139-0x0000000077450000-0x00000000775DE000-memory.dmp

        Filesize

        1.6MB

      • memory/2764-140-0x0000000077450000-0x00000000775DE000-memory.dmp

        Filesize

        1.6MB

      • memory/2764-141-0x0000000077450000-0x00000000775DE000-memory.dmp

        Filesize

        1.6MB

      • memory/2764-142-0x0000000077450000-0x00000000775DE000-memory.dmp

        Filesize

        1.6MB

      • memory/2764-143-0x0000000077450000-0x00000000775DE000-memory.dmp

        Filesize

        1.6MB

      • memory/2764-144-0x0000000077450000-0x00000000775DE000-memory.dmp

        Filesize

        1.6MB

      • memory/2764-145-0x0000000077450000-0x00000000775DE000-memory.dmp

        Filesize

        1.6MB

      • memory/2764-146-0x0000000077450000-0x00000000775DE000-memory.dmp

        Filesize

        1.6MB

      • memory/2764-147-0x0000000077450000-0x00000000775DE000-memory.dmp

        Filesize

        1.6MB

      • memory/2764-148-0x0000000077450000-0x00000000775DE000-memory.dmp

        Filesize

        1.6MB

      • memory/2764-149-0x0000000077450000-0x00000000775DE000-memory.dmp

        Filesize

        1.6MB

      • memory/2764-161-0x00000000039E0000-0x0000000003EB9000-memory.dmp

        Filesize

        4.8MB

      • memory/2764-151-0x0000000077450000-0x00000000775DE000-memory.dmp

        Filesize

        1.6MB

      • memory/2764-152-0x0000000077450000-0x00000000775DE000-memory.dmp

        Filesize

        1.6MB

      • memory/2764-153-0x0000000077450000-0x00000000775DE000-memory.dmp

        Filesize

        1.6MB

      • memory/2764-154-0x00000000012A0000-0x0000000001AD0000-memory.dmp

        Filesize

        8.2MB

      • memory/2764-155-0x0000000077450000-0x00000000775DE000-memory.dmp

        Filesize

        1.6MB

      • memory/2764-156-0x0000000077450000-0x00000000775DE000-memory.dmp

        Filesize

        1.6MB

      • memory/2764-119-0x0000000077450000-0x00000000775DE000-memory.dmp

        Filesize

        1.6MB

      • memory/2764-158-0x0000000077450000-0x00000000775DE000-memory.dmp

        Filesize

        1.6MB

      • memory/2764-123-0x0000000077450000-0x00000000775DE000-memory.dmp

        Filesize

        1.6MB

      • memory/2764-120-0x0000000077450000-0x00000000775DE000-memory.dmp

        Filesize

        1.6MB

      • memory/2764-117-0x0000000077450000-0x00000000775DE000-memory.dmp

        Filesize

        1.6MB

      • memory/2764-164-0x0000000077450000-0x00000000775DE000-memory.dmp

        Filesize

        1.6MB

      • memory/2764-165-0x0000000077450000-0x00000000775DE000-memory.dmp

        Filesize

        1.6MB

      • memory/2764-166-0x0000000077450000-0x00000000775DE000-memory.dmp

        Filesize

        1.6MB

      • memory/2764-167-0x0000000077450000-0x00000000775DE000-memory.dmp

        Filesize

        1.6MB

      • memory/2764-168-0x0000000077450000-0x00000000775DE000-memory.dmp

        Filesize

        1.6MB

      • memory/2764-169-0x0000000077450000-0x00000000775DE000-memory.dmp

        Filesize

        1.6MB

      • memory/2764-170-0x0000000077450000-0x00000000775DE000-memory.dmp

        Filesize

        1.6MB

      • memory/2764-172-0x0000000077450000-0x00000000775DE000-memory.dmp

        Filesize

        1.6MB

      • memory/2764-171-0x0000000077450000-0x00000000775DE000-memory.dmp

        Filesize

        1.6MB

      • memory/2764-173-0x0000000077450000-0x00000000775DE000-memory.dmp

        Filesize

        1.6MB

      • memory/2764-174-0x0000000077450000-0x00000000775DE000-memory.dmp

        Filesize

        1.6MB

      • memory/2764-175-0x0000000077450000-0x00000000775DE000-memory.dmp

        Filesize

        1.6MB

      • memory/2764-177-0x0000000077450000-0x00000000775DE000-memory.dmp

        Filesize

        1.6MB

      • memory/2764-176-0x0000000077450000-0x00000000775DE000-memory.dmp

        Filesize

        1.6MB

      • memory/2764-178-0x0000000077450000-0x00000000775DE000-memory.dmp

        Filesize

        1.6MB

      • memory/2764-179-0x00000000039E0000-0x0000000003EB9000-memory.dmp

        Filesize

        4.8MB

      • memory/2764-180-0x00000000038B0000-0x00000000039A4000-memory.dmp

        Filesize

        976KB

      • memory/2764-181-0x0000000077450000-0x00000000775DE000-memory.dmp

        Filesize

        1.6MB

      • memory/2764-182-0x0000000077450000-0x00000000775DE000-memory.dmp

        Filesize

        1.6MB

      • memory/2764-183-0x0000000077450000-0x00000000775DE000-memory.dmp

        Filesize

        1.6MB

      • memory/2764-184-0x0000000077450000-0x00000000775DE000-memory.dmp

        Filesize

        1.6MB

      • memory/2764-185-0x0000000077450000-0x00000000775DE000-memory.dmp

        Filesize

        1.6MB

      • memory/2764-186-0x0000000077450000-0x00000000775DE000-memory.dmp

        Filesize

        1.6MB

      • memory/2764-187-0x0000000077450000-0x00000000775DE000-memory.dmp

        Filesize

        1.6MB

      • memory/2764-217-0x00000000012A0000-0x0000000001AD0000-memory.dmp

        Filesize

        8.2MB

      • memory/2764-163-0x00000000038B0000-0x00000000039A4000-memory.dmp

        Filesize

        976KB

      • memory/2764-118-0x0000000077450000-0x00000000775DE000-memory.dmp

        Filesize

        1.6MB

      • memory/4492-285-0x0000000000080000-0x00000000008B0000-memory.dmp

        Filesize

        8.2MB

      • memory/4492-233-0x0000000000080000-0x00000000008B0000-memory.dmp

        Filesize

        8.2MB

      • memory/4492-293-0x0000000003410000-0x00000000038E3000-memory.dmp

        Filesize

        4.8MB

      • memory/4492-299-0x0000000003250000-0x0000000003349000-memory.dmp

        Filesize

        996KB

      • memory/4492-306-0x0000000003410000-0x00000000038E3000-memory.dmp

        Filesize

        4.8MB

      • memory/4492-201-0x0000000000000000-mapping.dmp

      • memory/4492-309-0x0000000010000000-0x0000000010062000-memory.dmp

        Filesize

        392KB

      • memory/4492-342-0x0000000000080000-0x00000000008B0000-memory.dmp

        Filesize

        8.2MB

      • memory/4492-307-0x0000000003250000-0x0000000003349000-memory.dmp

        Filesize

        996KB

      • memory/4928-251-0x0000000000000000-mapping.dmp

      • memory/4972-188-0x0000000000000000-mapping.dmp

      • memory/4972-189-0x0000000077450000-0x00000000775DE000-memory.dmp

        Filesize

        1.6MB