Analysis

  • max time kernel
    134s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    10/11/2022, 12:01

General

  • Target

    614D8A0CFD93B3AB2F4E01EA490BA9D350F7EA786A18B.exe

  • Size

    2.5MB

  • MD5

    efa05fbe474e6b3b28e3bc4ba1a74a54

  • SHA1

    540f0d462bfa9bf688ee0dd3a9aaead7aeec0fa1

  • SHA256

    614d8a0cfd93b3ab2f4e01ea490ba9d350f7ea786a18b54785581777df71b371

  • SHA512

    e2f673c268b96b891cdf3832e3cc554ffa2bd192eee6b6983612f8fe8483994fe071c084394b2ad1aa3659fb354d1c3fd07308bdbc5f78345763e6ba504b18f5

  • SSDEEP

    49152:wrk48V+6H3aJjU/IbKijgent+AjT368LGvQJtOMxqw+Uc7Vxh0:1t3aFU/TijRnPn3ZLGvCtOMQw+r

Score
10/10

Malware Config

Extracted

Family

systembc

C2

n20b28tu.info:4248

n20b28tu88.info:4248

slavelever.info:4248

slavelevereoewl.info:4248

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 4 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 2 IoCs
  • Checks BIOS information in registry 2 TTPs 8 IoCs

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

  • Deletes itself 1 IoCs
  • Identifies Wine through registry keys 2 TTPs 1 IoCs

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

  • Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs
  • Drops file in Windows directory 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\614D8A0CFD93B3AB2F4E01EA490BA9D350F7EA786A18B.exe
    "C:\Users\Admin\AppData\Local\Temp\614D8A0CFD93B3AB2F4E01EA490BA9D350F7EA786A18B.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
    • Suspicious behavior: EnumeratesProcesses
    PID:1308
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {C6C12CCE-2D26-4D36-9D3E-CBFF469B745C} S-1-5-18:NT AUTHORITY\System:Service:
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:112
    • C:\Users\Admin\AppData\Local\Temp\614D8A0CFD93B3AB2F4E01EA490BA9D350F7EA786A18B.exe
      C:\Users\Admin\AppData\Local\Temp\614D8A0CFD93B3AB2F4E01EA490BA9D350F7EA786A18B.exe start
      2⤵
      • Identifies VirtualBox via ACPI registry values (likely anti-VM)
      • Checks BIOS information in registry
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Drops file in Windows directory
      • Suspicious behavior: EnumeratesProcesses
      PID:1540
    • C:\Windows\TEMP\solpkqf.exe
      C:\Windows\TEMP\solpkqf.exe
      2⤵
      • Identifies VirtualBox via ACPI registry values (likely anti-VM)
      • Executes dropped EXE
      • Checks BIOS information in registry
      • Deletes itself
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Drops file in Windows directory
      • Suspicious behavior: EnumeratesProcesses
      PID:828
    • C:\Windows\TEMP\solpkqf.exe
      C:\Windows\TEMP\solpkqf.exe start
      2⤵
      • Identifies VirtualBox via ACPI registry values (likely anti-VM)
      • Executes dropped EXE
      • Checks BIOS information in registry
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious behavior: EnumeratesProcesses
      PID:1236

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Windows\TEMP\solpkqf.exe

          Filesize

          2.0MB

          MD5

          dd3a5df905b4aca6028903b83919514a

          SHA1

          801fc5875148a0a648e6e246dcbd1ce0ad6c007f

          SHA256

          56ac1a8dc72d7a18f0af4f434e32479b14f67c3fe99c3bb23d38492e51412957

          SHA512

          34bee5e5d9f645f4757762b85a8765919058baf7fc4aad8f11d8f2f80ff80d2daa931c29b83e8437242a9ca2718794a97caa2881ec40a6d68811e386b08e6af1

        • C:\Windows\Tasks\wow64.job

          Filesize

          334B

          MD5

          c9aa4261c3c9e6ea9675cb37e655ed51

          SHA1

          7fbcbc6269fe8424a2990f7a41eafc6a3e353216

          SHA256

          7a2a24da7f326f70910eeafa3b1314af78f4b918021af978549039101993f0da

          SHA512

          2ea17c241637a38b1a6912f7da62cef8fa6c35df601adf2aca73e45e53d8f2edb12d1e02ba9949b8b39777edf9a0db61346f7c10cc2b8b284541284aa91a771d

        • C:\Windows\Temp\solpkqf.exe

          Filesize

          2.0MB

          MD5

          dd3a5df905b4aca6028903b83919514a

          SHA1

          801fc5875148a0a648e6e246dcbd1ce0ad6c007f

          SHA256

          56ac1a8dc72d7a18f0af4f434e32479b14f67c3fe99c3bb23d38492e51412957

          SHA512

          34bee5e5d9f645f4757762b85a8765919058baf7fc4aad8f11d8f2f80ff80d2daa931c29b83e8437242a9ca2718794a97caa2881ec40a6d68811e386b08e6af1

        • C:\Windows\Temp\solpkqf.exe

          Filesize

          2.0MB

          MD5

          dd3a5df905b4aca6028903b83919514a

          SHA1

          801fc5875148a0a648e6e246dcbd1ce0ad6c007f

          SHA256

          56ac1a8dc72d7a18f0af4f434e32479b14f67c3fe99c3bb23d38492e51412957

          SHA512

          34bee5e5d9f645f4757762b85a8765919058baf7fc4aad8f11d8f2f80ff80d2daa931c29b83e8437242a9ca2718794a97caa2881ec40a6d68811e386b08e6af1

        • memory/828-74-0x0000000000400000-0x0000000000886000-memory.dmp

          Filesize

          4.5MB

        • memory/828-81-0x0000000076FB0000-0x0000000077130000-memory.dmp

          Filesize

          1.5MB

        • memory/828-71-0x0000000076FB0000-0x0000000077130000-memory.dmp

          Filesize

          1.5MB

        • memory/828-69-0x0000000000400000-0x0000000000886000-memory.dmp

          Filesize

          4.5MB

        • memory/1236-77-0x0000000000400000-0x0000000000886000-memory.dmp

          Filesize

          4.5MB

        • memory/1236-80-0x0000000000400000-0x0000000000886000-memory.dmp

          Filesize

          4.5MB

        • memory/1236-79-0x0000000076FB0000-0x0000000077130000-memory.dmp

          Filesize

          1.5MB

        • memory/1308-56-0x0000000076FB0000-0x0000000077130000-memory.dmp

          Filesize

          1.5MB

        • memory/1308-63-0x0000000076FB0000-0x0000000077130000-memory.dmp

          Filesize

          1.5MB

        • memory/1308-65-0x0000000076FB0000-0x0000000077130000-memory.dmp

          Filesize

          1.5MB

        • memory/1308-54-0x0000000000400000-0x0000000000922000-memory.dmp

          Filesize

          5.1MB

        • memory/1308-55-0x0000000074DA1000-0x0000000074DA3000-memory.dmp

          Filesize

          8KB

        • memory/1308-57-0x0000000000400000-0x0000000000922000-memory.dmp

          Filesize

          5.1MB

        • memory/1540-62-0x0000000000400000-0x0000000000922000-memory.dmp

          Filesize

          5.1MB

        • memory/1540-73-0x0000000076FB0000-0x0000000077130000-memory.dmp

          Filesize

          1.5MB

        • memory/1540-59-0x0000000000400000-0x0000000000922000-memory.dmp

          Filesize

          5.1MB

        • memory/1540-64-0x0000000076FB0000-0x0000000077130000-memory.dmp

          Filesize

          1.5MB

        • memory/1540-60-0x0000000076FB0000-0x0000000077130000-memory.dmp

          Filesize

          1.5MB