Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14-10-2024 14:09

General

  • Target

    b4ea9fc8891fce7e255d583efa962256b0dee44df2de28f0e4d4ae8145f0ca5a.exe

  • Size

    926KB

  • MD5

    4d6e7990958750655c63899f3b4e96aa

  • SHA1

    f4113dd8af0bc21a471273d17f4572f6d23782eb

  • SHA256

    b4ea9fc8891fce7e255d583efa962256b0dee44df2de28f0e4d4ae8145f0ca5a

  • SHA512

    b16b32d1076112835c6ade4b40b76cf98d851ae066c0f4b9d2054ce8c8208cc03a7fa0f3d59234d690fb37deb4775fd8f306eacd92c69df49d18c8b2331870e1

  • SSDEEP

    24576:gduE/JmHlhNBv7XVWJp75vbl+JtiS6AMX+:g0E/JqNZZWJp9bl+96AMO

Malware Config

Extracted

Family

remcos

Botnet

zynova

C2

cloudsave.duckdns.org:14645

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-CJ3HJ1

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • Remcos

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

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Checks computer location settings 2 TTPs 1 IoCs

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

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

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b4ea9fc8891fce7e255d583efa962256b0dee44df2de28f0e4d4ae8145f0ca5a.exe
    "C:\Users\Admin\AppData\Local\Temp\b4ea9fc8891fce7e255d583efa962256b0dee44df2de28f0e4d4ae8145f0ca5a.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2904
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\b4ea9fc8891fce7e255d583efa962256b0dee44df2de28f0e4d4ae8145f0ca5a.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:232
    • C:\Users\Admin\AppData\Local\Temp\b4ea9fc8891fce7e255d583efa962256b0dee44df2de28f0e4d4ae8145f0ca5a.exe
      "C:\Users\Admin\AppData\Local\Temp\b4ea9fc8891fce7e255d583efa962256b0dee44df2de28f0e4d4ae8145f0ca5a.exe"
      2⤵
        PID:2956
      • C:\Users\Admin\AppData\Local\Temp\b4ea9fc8891fce7e255d583efa962256b0dee44df2de28f0e4d4ae8145f0ca5a.exe
        "C:\Users\Admin\AppData\Local\Temp\b4ea9fc8891fce7e255d583efa962256b0dee44df2de28f0e4d4ae8145f0ca5a.exe"
        2⤵
          PID:4940
        • C:\Users\Admin\AppData\Local\Temp\b4ea9fc8891fce7e255d583efa962256b0dee44df2de28f0e4d4ae8145f0ca5a.exe
          "C:\Users\Admin\AppData\Local\Temp\b4ea9fc8891fce7e255d583efa962256b0dee44df2de28f0e4d4ae8145f0ca5a.exe"
          2⤵
          • System Location Discovery: System Language Discovery
          PID:212

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_rao35pkm.aqp.ps1

        Filesize

        60B

        MD5

        d17fe0a3f47be24a6453e9ef58c94641

        SHA1

        6ab83620379fc69f80c0242105ddffd7d98d5d9d

        SHA256

        96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

        SHA512

        5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

      • memory/212-98-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/212-100-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/212-123-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/212-122-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/212-121-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/212-73-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/212-120-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/212-72-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/212-119-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/212-71-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/212-13-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/212-12-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/212-11-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/212-15-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/212-16-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/212-117-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/212-116-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/212-115-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/212-114-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/212-21-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/212-113-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/212-112-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/212-111-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/212-110-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/212-109-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/212-108-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/212-107-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/212-106-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/212-105-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/212-104-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/212-103-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/212-102-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/212-101-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/212-87-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/212-99-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/212-97-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/212-96-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/212-95-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/212-94-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/212-58-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/212-93-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/212-92-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/212-91-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/212-90-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/212-65-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/212-66-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/212-67-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/212-68-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/212-69-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/212-70-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/212-118-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/212-89-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/212-88-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/212-74-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/212-75-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/212-76-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/212-77-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/212-78-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/212-79-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/212-80-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/212-81-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/212-82-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/212-83-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/212-84-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/212-85-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/212-86-0x0000000000400000-0x0000000000482000-memory.dmp

        Filesize

        520KB

      • memory/232-37-0x0000000006580000-0x000000000659E000-memory.dmp

        Filesize

        120KB

      • memory/232-19-0x00000000753A0000-0x0000000075B50000-memory.dmp

        Filesize

        7.7MB

      • memory/232-18-0x00000000753AE000-0x00000000753AF000-memory.dmp

        Filesize

        4KB

      • memory/232-64-0x00000000753A0000-0x0000000075B50000-memory.dmp

        Filesize

        7.7MB

      • memory/232-61-0x0000000007BC0000-0x0000000007BC8000-memory.dmp

        Filesize

        32KB

      • memory/232-60-0x0000000007BE0000-0x0000000007BFA000-memory.dmp

        Filesize

        104KB

      • memory/232-59-0x0000000007AE0000-0x0000000007AF4000-memory.dmp

        Filesize

        80KB

      • memory/232-57-0x0000000007AD0000-0x0000000007ADE000-memory.dmp

        Filesize

        56KB

      • memory/232-56-0x0000000007AA0000-0x0000000007AB1000-memory.dmp

        Filesize

        68KB

      • memory/232-55-0x0000000007B20000-0x0000000007BB6000-memory.dmp

        Filesize

        600KB

      • memory/232-54-0x0000000007910000-0x000000000791A000-memory.dmp

        Filesize

        40KB

      • memory/232-20-0x0000000002BE0000-0x0000000002C16000-memory.dmp

        Filesize

        216KB

      • memory/232-53-0x00000000078A0000-0x00000000078BA000-memory.dmp

        Filesize

        104KB

      • memory/232-52-0x0000000007EF0000-0x000000000856A000-memory.dmp

        Filesize

        6.5MB

      • memory/232-51-0x0000000007790000-0x0000000007833000-memory.dmp

        Filesize

        652KB

      • memory/232-50-0x0000000006B40000-0x0000000006B5E000-memory.dmp

        Filesize

        120KB

      • memory/232-40-0x0000000071A80000-0x0000000071ACC000-memory.dmp

        Filesize

        304KB

      • memory/232-39-0x0000000007550000-0x0000000007582000-memory.dmp

        Filesize

        200KB

      • memory/232-38-0x00000000065B0000-0x00000000065FC000-memory.dmp

        Filesize

        304KB

      • memory/232-22-0x00000000753A0000-0x0000000075B50000-memory.dmp

        Filesize

        7.7MB

      • memory/232-23-0x0000000005640000-0x0000000005C68000-memory.dmp

        Filesize

        6.2MB

      • memory/232-27-0x0000000005EA0000-0x00000000061F4000-memory.dmp

        Filesize

        3.3MB

      • memory/232-24-0x0000000005560000-0x0000000005582000-memory.dmp

        Filesize

        136KB

      • memory/232-26-0x0000000005CE0000-0x0000000005D46000-memory.dmp

        Filesize

        408KB

      • memory/232-25-0x0000000005C70000-0x0000000005CD6000-memory.dmp

        Filesize

        408KB

      • memory/2904-1-0x00000000005A0000-0x000000000068C000-memory.dmp

        Filesize

        944KB

      • memory/2904-2-0x0000000005520000-0x0000000005AC4000-memory.dmp

        Filesize

        5.6MB

      • memory/2904-0-0x00000000753AE000-0x00000000753AF000-memory.dmp

        Filesize

        4KB

      • memory/2904-6-0x0000000005330000-0x0000000005340000-memory.dmp

        Filesize

        64KB

      • memory/2904-8-0x00000000753A0000-0x0000000075B50000-memory.dmp

        Filesize

        7.7MB

      • memory/2904-17-0x00000000753A0000-0x0000000075B50000-memory.dmp

        Filesize

        7.7MB

      • memory/2904-10-0x00000000093A0000-0x000000000943C000-memory.dmp

        Filesize

        624KB

      • memory/2904-9-0x0000000006540000-0x0000000006600000-memory.dmp

        Filesize

        768KB

      • memory/2904-7-0x00000000753AE000-0x00000000753AF000-memory.dmp

        Filesize

        4KB

      • memory/2904-5-0x00000000753A0000-0x0000000075B50000-memory.dmp

        Filesize

        7.7MB

      • memory/2904-4-0x0000000005130000-0x000000000513A000-memory.dmp

        Filesize

        40KB

      • memory/2904-3-0x0000000005070000-0x0000000005102000-memory.dmp

        Filesize

        584KB