Analysis

  • max time kernel
    147s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-01-2024 20:56

General

  • Target

    689ef1d29c263f78c9626e00500983e2589d28068a72fadba9a4b04b7eafbcaf.exe

  • Size

    856KB

  • MD5

    72f2460abc3ae41fff469e110f3eaff3

  • SHA1

    066ba1993f24e959b03edef4940d1b5ee9f5e18a

  • SHA256

    689ef1d29c263f78c9626e00500983e2589d28068a72fadba9a4b04b7eafbcaf

  • SHA512

    7627f7b0cfc2ca14e788b840601edc5460b36c8e386d39b2eda2283600e192a9c83b1f5fec93ef7eff0a9e54d80ab523780149fae65116a9af77753e8b01fcc8

  • SSDEEP

    12288:7c8K/isRopeArTI4C8ilPYO0bJm1hEpA4kpNOxJNWBfTgtfBjLkvGpMeUPDpVU13:vK/LRopDTI4VOcHxJobgVRJww6k

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

jburg.net:3363

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    remcos.exe

  • copy_folder

    Remcos

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    false

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-Y4B0AA

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • Detect ZGRat V1 34 IoCs
  • Remcos

    Remcos is a closed-source remote control and surveillance software.

  • ZGRat

    ZGRat is remote access trojan written in C#.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\689ef1d29c263f78c9626e00500983e2589d28068a72fadba9a4b04b7eafbcaf.exe
    "C:\Users\Admin\AppData\Local\Temp\689ef1d29c263f78c9626e00500983e2589d28068a72fadba9a4b04b7eafbcaf.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4788
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc 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
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1668
    • C:\Users\Admin\AppData\Local\Temp\689ef1d29c263f78c9626e00500983e2589d28068a72fadba9a4b04b7eafbcaf.exe
      C:\Users\Admin\AppData\Local\Temp\689ef1d29c263f78c9626e00500983e2589d28068a72fadba9a4b04b7eafbcaf.exe
      2⤵
      • Suspicious use of SetWindowsHookEx
      PID:404
    • C:\Users\Admin\AppData\Local\Temp\689ef1d29c263f78c9626e00500983e2589d28068a72fadba9a4b04b7eafbcaf.exe
      C:\Users\Admin\AppData\Local\Temp\689ef1d29c263f78c9626e00500983e2589d28068a72fadba9a4b04b7eafbcaf.exe
      2⤵
        PID:1300

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\ProgramData\remcos\logs.dat

      Filesize

      144B

      MD5

      06b694420cbb60f2188f342e6b33fab3

      SHA1

      9e15b600e14ad38e8a2843113c5a45e5d6c74b44

      SHA256

      07b68ecb60396c2b1e504d00c963332c4467a831280f65ff839fbce9e1650c33

      SHA512

      a8ad3aeac5fd29a195ca3b263d2645555acabc1408a37f36dc161b2ad35c44c491964518a2a335bf1980a495813588efd82f96a17b92e26f55e7a18dbe848a7c

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_k24ajl2h.fin.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • memory/404-1003-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/404-951-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB

    • memory/1668-972-0x000000007EE10000-0x000000007EE20000-memory.dmp

      Filesize

      64KB

    • memory/1668-986-0x00000000027E0000-0x00000000027F0000-memory.dmp

      Filesize

      64KB

    • memory/1668-994-0x0000000007410000-0x0000000007424000-memory.dmp

      Filesize

      80KB

    • memory/1668-993-0x0000000007400000-0x000000000740E000-memory.dmp

      Filesize

      56KB

    • memory/1668-943-0x00000000027E0000-0x00000000027F0000-memory.dmp

      Filesize

      64KB

    • memory/1668-992-0x00000000073D0000-0x00000000073E1000-memory.dmp

      Filesize

      68KB

    • memory/1668-991-0x0000000007450000-0x00000000074E6000-memory.dmp

      Filesize

      600KB

    • memory/1668-973-0x00000000064A0000-0x00000000064D2000-memory.dmp

      Filesize

      200KB

    • memory/1668-990-0x0000000007240000-0x000000000724A000-memory.dmp

      Filesize

      40KB

    • memory/1668-974-0x0000000070620000-0x000000007066C000-memory.dmp

      Filesize

      304KB

    • memory/1668-989-0x00000000071D0000-0x00000000071EA000-memory.dmp

      Filesize

      104KB

    • memory/1668-988-0x0000000007820000-0x0000000007E9A000-memory.dmp

      Filesize

      6.5MB

    • memory/1668-984-0x0000000006480000-0x000000000649E000-memory.dmp

      Filesize

      120KB

    • memory/1668-996-0x00000000074F0000-0x00000000074F8000-memory.dmp

      Filesize

      32KB

    • memory/1668-987-0x00000000070B0000-0x0000000007153000-memory.dmp

      Filesize

      652KB

    • memory/1668-985-0x00000000027E0000-0x00000000027F0000-memory.dmp

      Filesize

      64KB

    • memory/1668-971-0x0000000005ED0000-0x0000000005F1C000-memory.dmp

      Filesize

      304KB

    • memory/1668-970-0x0000000005EA0000-0x0000000005EBE000-memory.dmp

      Filesize

      120KB

    • memory/1668-958-0x0000000005810000-0x0000000005876000-memory.dmp

      Filesize

      408KB

    • memory/1668-968-0x0000000005AC0000-0x0000000005E14000-memory.dmp

      Filesize

      3.3MB

    • memory/1668-995-0x0000000007510000-0x000000000752A000-memory.dmp

      Filesize

      104KB

    • memory/1668-957-0x0000000005730000-0x0000000005796000-memory.dmp

      Filesize

      408KB

    • memory/1668-953-0x0000000004E60000-0x0000000004E82000-memory.dmp

      Filesize

      136KB

    • memory/1668-941-0x0000000004860000-0x0000000004896000-memory.dmp

      Filesize

      216KB

    • memory/1668-942-0x00000000748C0000-0x0000000075070000-memory.dmp

      Filesize

      7.7MB

    • memory/1668-944-0x00000000027E0000-0x00000000027F0000-memory.dmp

      Filesize

      64KB

    • memory/1668-999-0x00000000748C0000-0x0000000075070000-memory.dmp

      Filesize

      7.7MB

    • memory/1668-945-0x0000000004ED0000-0x00000000054F8000-memory.dmp

      Filesize

      6.2MB

    • memory/4788-38-0x0000000004F60000-0x0000000005032000-memory.dmp

      Filesize

      840KB

    • memory/4788-42-0x0000000004F60000-0x0000000005032000-memory.dmp

      Filesize

      840KB

    • memory/4788-44-0x0000000004F60000-0x0000000005032000-memory.dmp

      Filesize

      840KB

    • memory/4788-32-0x0000000004F60000-0x0000000005032000-memory.dmp

      Filesize

      840KB

    • memory/4788-936-0x0000000004EF0000-0x0000000004EF1000-memory.dmp

      Filesize

      4KB

    • memory/4788-935-0x0000000004F50000-0x0000000004F60000-memory.dmp

      Filesize

      64KB

    • memory/4788-938-0x0000000005260000-0x00000000052AC000-memory.dmp

      Filesize

      304KB

    • memory/4788-937-0x00000000050A0000-0x000000000510E000-memory.dmp

      Filesize

      440KB

    • memory/4788-939-0x0000000006400000-0x00000000069A4000-memory.dmp

      Filesize

      5.6MB

    • memory/4788-52-0x0000000004F60000-0x0000000005032000-memory.dmp

      Filesize

      840KB

    • memory/4788-54-0x0000000004F60000-0x0000000005032000-memory.dmp

      Filesize

      840KB

    • memory/4788-60-0x0000000004F60000-0x0000000005032000-memory.dmp

      Filesize

      840KB

    • memory/4788-950-0x00000000748C0000-0x0000000075070000-memory.dmp

      Filesize

      7.7MB

    • memory/4788-62-0x0000000004F60000-0x0000000005032000-memory.dmp

      Filesize

      840KB

    • memory/4788-66-0x0000000004F60000-0x0000000005032000-memory.dmp

      Filesize

      840KB

    • memory/4788-64-0x0000000004F60000-0x0000000005032000-memory.dmp

      Filesize

      840KB

    • memory/4788-58-0x0000000004F60000-0x0000000005032000-memory.dmp

      Filesize

      840KB

    • memory/4788-56-0x0000000004F60000-0x0000000005032000-memory.dmp

      Filesize

      840KB

    • memory/4788-50-0x0000000004F60000-0x0000000005032000-memory.dmp

      Filesize

      840KB

    • memory/4788-48-0x0000000004F60000-0x0000000005032000-memory.dmp

      Filesize

      840KB

    • memory/4788-34-0x0000000004F60000-0x0000000005032000-memory.dmp

      Filesize

      840KB

    • memory/4788-46-0x0000000004F60000-0x0000000005032000-memory.dmp

      Filesize

      840KB

    • memory/4788-40-0x0000000004F60000-0x0000000005032000-memory.dmp

      Filesize

      840KB

    • memory/4788-36-0x0000000004F60000-0x0000000005032000-memory.dmp

      Filesize

      840KB

    • memory/4788-0-0x0000000000480000-0x000000000055C000-memory.dmp

      Filesize

      880KB

    • memory/4788-30-0x0000000004F60000-0x0000000005032000-memory.dmp

      Filesize

      840KB

    • memory/4788-28-0x0000000004F60000-0x0000000005032000-memory.dmp

      Filesize

      840KB

    • memory/4788-26-0x0000000004F60000-0x0000000005032000-memory.dmp

      Filesize

      840KB

    • memory/4788-24-0x0000000004F60000-0x0000000005032000-memory.dmp

      Filesize

      840KB

    • memory/4788-22-0x0000000004F60000-0x0000000005032000-memory.dmp

      Filesize

      840KB

    • memory/4788-20-0x0000000004F60000-0x0000000005032000-memory.dmp

      Filesize

      840KB

    • memory/4788-18-0x0000000004F60000-0x0000000005032000-memory.dmp

      Filesize

      840KB

    • memory/4788-12-0x0000000004F60000-0x0000000005032000-memory.dmp

      Filesize

      840KB

    • memory/4788-16-0x0000000004F60000-0x0000000005032000-memory.dmp

      Filesize

      840KB

    • memory/4788-14-0x0000000004F60000-0x0000000005032000-memory.dmp

      Filesize

      840KB

    • memory/4788-10-0x0000000004F60000-0x0000000005032000-memory.dmp

      Filesize

      840KB

    • memory/4788-8-0x0000000004F60000-0x0000000005032000-memory.dmp

      Filesize

      840KB

    • memory/4788-6-0x0000000004F60000-0x0000000005032000-memory.dmp

      Filesize

      840KB

    • memory/4788-4-0x0000000004F60000-0x0000000005032000-memory.dmp

      Filesize

      840KB

    • memory/4788-3-0x0000000004F60000-0x0000000005032000-memory.dmp

      Filesize

      840KB

    • memory/4788-2-0x0000000004F60000-0x0000000005038000-memory.dmp

      Filesize

      864KB

    • memory/4788-1-0x00000000748C0000-0x0000000075070000-memory.dmp

      Filesize

      7.7MB