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Analysis

  • max time kernel
    149s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17/09/2024, 14:48

General

  • Target

    AWB 41174448411.exe

  • Size

    879KB

  • MD5

    b7f666dbb31c5ae7316d4a7a32fab0a8

  • SHA1

    f310928142cb104fb6133d0130270a8b35062591

  • SHA256

    0ea27f62b56bef4fe42893c728fefb4ec62cf7c1f56f40331697cb6ec0e1a60b

  • SHA512

    9bed657f901268e54fb4b36fcc15c27d64be532c47b7771f72baeb443071547615d2733400d804c7b66a6cb5889217033dbb8b7dc33ed0e30a5199edb78073a0

  • SSDEEP

    24576:ePJ3lwMzXGxCh9ZOBsi6CudnMZHbrC5zDY7zkU8Xnh:A99GYTOBcMZP8DRvX

Malware Config

Extracted

Family

remcos

Botnet

3456789

C2

172.93.220.148:45682

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

    765-8M14I5

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    Remcos

  • 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 4 IoCs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\AWB 41174448411.exe
    "C:\Users\Admin\AppData\Local\Temp\AWB 41174448411.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4536
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\SZuXSONpovRq.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:228
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\SZuXSONpovRq" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF5AA.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:4212
    • C:\Users\Admin\AppData\Local\Temp\AWB 41174448411.exe
      "C:\Users\Admin\AppData\Local\Temp\AWB 41174448411.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1872

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_x5dwhp13.0qw.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmpF5AA.tmp

    Filesize

    1KB

    MD5

    a43e629c702feebf9b20e45ae7733b84

    SHA1

    eda54a6e2fe3bf3536ef4077725046e2d754fa9f

    SHA256

    e8b63660d3b4d449bfc9914edb317cab7aa6e56bbd717604468750364047c182

    SHA512

    370e0a3543d1a98ccc3b0f74a394588a1e12c3dd71f7b0f9d9bdc40f018c1fafaf27bb309d687c7e1705244a1aae4f5326a60d708d1a6d689a6ab5039fb222bd

  • memory/228-66-0x0000000007A50000-0x0000000007A61000-memory.dmp

    Filesize

    68KB

  • memory/228-41-0x00000000060F0000-0x0000000006444000-memory.dmp

    Filesize

    3.3MB

  • memory/228-73-0x0000000075250000-0x0000000075A00000-memory.dmp

    Filesize

    7.7MB

  • memory/228-70-0x0000000007B70000-0x0000000007B78000-memory.dmp

    Filesize

    32KB

  • memory/228-69-0x0000000007B90000-0x0000000007BAA000-memory.dmp

    Filesize

    104KB

  • memory/228-68-0x0000000007A90000-0x0000000007AA4000-memory.dmp

    Filesize

    80KB

  • memory/228-67-0x0000000007A80000-0x0000000007A8E000-memory.dmp

    Filesize

    56KB

  • memory/228-44-0x00000000064A0000-0x00000000064BE000-memory.dmp

    Filesize

    120KB

  • memory/228-65-0x0000000007AD0000-0x0000000007B66000-memory.dmp

    Filesize

    600KB

  • memory/228-15-0x0000000004FB0000-0x0000000004FE6000-memory.dmp

    Filesize

    216KB

  • memory/228-16-0x0000000075250000-0x0000000075A00000-memory.dmp

    Filesize

    7.7MB

  • memory/228-19-0x0000000075250000-0x0000000075A00000-memory.dmp

    Filesize

    7.7MB

  • memory/228-18-0x0000000005780000-0x0000000005DA8000-memory.dmp

    Filesize

    6.2MB

  • memory/228-64-0x00000000078C0000-0x00000000078CA000-memory.dmp

    Filesize

    40KB

  • memory/228-20-0x0000000075250000-0x0000000075A00000-memory.dmp

    Filesize

    7.7MB

  • memory/228-63-0x0000000007850000-0x000000000786A000-memory.dmp

    Filesize

    104KB

  • memory/228-62-0x0000000007E90000-0x000000000850A000-memory.dmp

    Filesize

    6.5MB

  • memory/228-61-0x0000000007750000-0x00000000077F3000-memory.dmp

    Filesize

    652KB

  • memory/228-60-0x0000000006B50000-0x0000000006B6E000-memory.dmp

    Filesize

    120KB

  • memory/228-50-0x0000000071B60000-0x0000000071BAC000-memory.dmp

    Filesize

    304KB

  • memory/228-49-0x0000000006AD0000-0x0000000006B02000-memory.dmp

    Filesize

    200KB

  • memory/228-29-0x0000000005660000-0x0000000005682000-memory.dmp

    Filesize

    136KB

  • memory/228-45-0x00000000065F0000-0x000000000663C000-memory.dmp

    Filesize

    304KB

  • memory/228-36-0x0000000005EE0000-0x0000000005F46000-memory.dmp

    Filesize

    408KB

  • memory/228-35-0x0000000005700000-0x0000000005766000-memory.dmp

    Filesize

    408KB

  • memory/1872-21-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1872-27-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1872-74-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1872-82-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1872-46-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1872-81-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1872-48-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1872-24-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1872-79-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1872-42-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1872-25-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1872-22-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1872-43-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1872-80-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1872-78-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1872-77-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1872-76-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1872-75-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/4536-28-0x0000000075250000-0x0000000075A00000-memory.dmp

    Filesize

    7.7MB

  • memory/4536-4-0x0000000005740000-0x000000000574A000-memory.dmp

    Filesize

    40KB

  • memory/4536-5-0x0000000075250000-0x0000000075A00000-memory.dmp

    Filesize

    7.7MB

  • memory/4536-6-0x0000000005B40000-0x0000000005B4E000-memory.dmp

    Filesize

    56KB

  • memory/4536-7-0x000000007525E000-0x000000007525F000-memory.dmp

    Filesize

    4KB

  • memory/4536-8-0x0000000075250000-0x0000000075A00000-memory.dmp

    Filesize

    7.7MB

  • memory/4536-0-0x000000007525E000-0x000000007525F000-memory.dmp

    Filesize

    4KB

  • memory/4536-10-0x000000000AC60000-0x000000000ACFC000-memory.dmp

    Filesize

    624KB

  • memory/4536-2-0x0000000005CD0000-0x0000000006274000-memory.dmp

    Filesize

    5.6MB

  • memory/4536-3-0x00000000057C0000-0x0000000005852000-memory.dmp

    Filesize

    584KB

  • memory/4536-1-0x0000000000C60000-0x0000000000D42000-memory.dmp

    Filesize

    904KB

  • memory/4536-9-0x0000000008500000-0x00000000085BE000-memory.dmp

    Filesize

    760KB