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Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/09/2024, 12:59

General

  • Target

    cb810150b6ce80f61a808726d5abfbf598239c2e8f260f83bc27d6be9488f45e.exe

  • Size

    969KB

  • MD5

    24781308181f7f22425faaac77451a3d

  • SHA1

    c62bcf469e55bde9c964ce613d6941867304c597

  • SHA256

    cb810150b6ce80f61a808726d5abfbf598239c2e8f260f83bc27d6be9488f45e

  • SHA512

    887b1e416b9ddcef846dda4b6aef7978b98d96c18f96a0f2e0c6660cc0e40c852396e588ebe908a914d37b010751bbbe42db6d0e64f5d249e6f108080fbed498

  • SSDEEP

    24576:OB/7/pYTVfsv208sSNW4ztXHldRBinBOiGJ:G/7OMbIWmnd2BOiGJ

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

212.162.149.42:7118

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-WYBPPO

  • 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 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 11 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cb810150b6ce80f61a808726d5abfbf598239c2e8f260f83bc27d6be9488f45e.exe
    "C:\Users\Admin\AppData\Local\Temp\cb810150b6ce80f61a808726d5abfbf598239c2e8f260f83bc27d6be9488f45e.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:3520
    • 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\cb810150b6ce80f61a808726d5abfbf598239c2e8f260f83bc27d6be9488f45e.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2996
    • C:\Users\Admin\AppData\Local\Temp\cb810150b6ce80f61a808726d5abfbf598239c2e8f260f83bc27d6be9488f45e.exe
      "C:\Users\Admin\AppData\Local\Temp\cb810150b6ce80f61a808726d5abfbf598239c2e8f260f83bc27d6be9488f45e.exe"
      2⤵
        PID:3380
      • C:\Users\Admin\AppData\Local\Temp\cb810150b6ce80f61a808726d5abfbf598239c2e8f260f83bc27d6be9488f45e.exe
        "C:\Users\Admin\AppData\Local\Temp\cb810150b6ce80f61a808726d5abfbf598239c2e8f260f83bc27d6be9488f45e.exe"
        2⤵
        • System Location Discovery: System Language Discovery
        PID:1160

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_miiz0htv.2vz.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • memory/1160-12-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/1160-14-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/1160-16-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/1160-78-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/1160-77-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/1160-76-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/1160-75-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/1160-74-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/1160-73-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/1160-72-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/1160-71-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/1160-18-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/1160-70-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/1160-69-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/1160-68-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/1160-13-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2996-38-0x0000000005EB0000-0x0000000005ECE000-memory.dmp

      Filesize

      120KB

    • memory/2996-41-0x0000000074A00000-0x00000000751B0000-memory.dmp

      Filesize

      7.7MB

    • memory/2996-19-0x0000000074A0E000-0x0000000074A0F000-memory.dmp

      Filesize

      4KB

    • memory/2996-20-0x00000000048F0000-0x0000000004926000-memory.dmp

      Filesize

      216KB

    • memory/2996-23-0x0000000074A00000-0x00000000751B0000-memory.dmp

      Filesize

      7.7MB

    • memory/2996-24-0x0000000004DF0000-0x0000000004E12000-memory.dmp

      Filesize

      136KB

    • memory/2996-25-0x0000000004F90000-0x0000000004FF6000-memory.dmp

      Filesize

      408KB

    • memory/2996-27-0x0000000005730000-0x0000000005796000-memory.dmp

      Filesize

      408KB

    • memory/2996-26-0x0000000074A00000-0x00000000751B0000-memory.dmp

      Filesize

      7.7MB

    • memory/2996-22-0x0000000005090000-0x00000000056B8000-memory.dmp

      Filesize

      6.2MB

    • memory/2996-37-0x00000000059A0000-0x0000000005CF4000-memory.dmp

      Filesize

      3.3MB

    • memory/2996-67-0x0000000074A00000-0x00000000751B0000-memory.dmp

      Filesize

      7.7MB

    • memory/2996-39-0x0000000005F70000-0x0000000005FBC000-memory.dmp

      Filesize

      304KB

    • memory/2996-64-0x0000000007510000-0x0000000007518000-memory.dmp

      Filesize

      32KB

    • memory/2996-40-0x0000000006490000-0x00000000064C2000-memory.dmp

      Filesize

      200KB

    • memory/2996-42-0x00000000712F0000-0x000000007133C000-memory.dmp

      Filesize

      304KB

    • memory/2996-52-0x00000000064D0000-0x00000000064EE000-memory.dmp

      Filesize

      120KB

    • memory/2996-53-0x0000000074A00000-0x00000000751B0000-memory.dmp

      Filesize

      7.7MB

    • memory/2996-54-0x0000000006EF0000-0x0000000006F93000-memory.dmp

      Filesize

      652KB

    • memory/2996-55-0x0000000074A00000-0x00000000751B0000-memory.dmp

      Filesize

      7.7MB

    • memory/2996-56-0x0000000007830000-0x0000000007EAA000-memory.dmp

      Filesize

      6.5MB

    • memory/2996-57-0x00000000071F0000-0x000000000720A000-memory.dmp

      Filesize

      104KB

    • memory/2996-58-0x0000000007260000-0x000000000726A000-memory.dmp

      Filesize

      40KB

    • memory/2996-59-0x0000000007470000-0x0000000007506000-memory.dmp

      Filesize

      600KB

    • memory/2996-60-0x00000000073F0000-0x0000000007401000-memory.dmp

      Filesize

      68KB

    • memory/2996-61-0x0000000007420000-0x000000000742E000-memory.dmp

      Filesize

      56KB

    • memory/2996-62-0x0000000007430000-0x0000000007444000-memory.dmp

      Filesize

      80KB

    • memory/2996-63-0x0000000007530000-0x000000000754A000-memory.dmp

      Filesize

      104KB

    • memory/3520-9-0x0000000074A00000-0x00000000751B0000-memory.dmp

      Filesize

      7.7MB

    • memory/3520-11-0x0000000006350000-0x000000000640E000-memory.dmp

      Filesize

      760KB

    • memory/3520-8-0x0000000074A0E000-0x0000000074A0F000-memory.dmp

      Filesize

      4KB

    • memory/3520-7-0x0000000005540000-0x0000000005550000-memory.dmp

      Filesize

      64KB

    • memory/3520-10-0x0000000005550000-0x000000000555E000-memory.dmp

      Filesize

      56KB

    • memory/3520-6-0x00000000052A0000-0x000000000533C000-memory.dmp

      Filesize

      624KB

    • memory/3520-5-0x0000000005000000-0x000000000500A000-memory.dmp

      Filesize

      40KB

    • memory/3520-4-0x0000000074A00000-0x00000000751B0000-memory.dmp

      Filesize

      7.7MB

    • memory/3520-3-0x0000000005060000-0x00000000050F2000-memory.dmp

      Filesize

      584KB

    • memory/3520-2-0x0000000005570000-0x0000000005B14000-memory.dmp

      Filesize

      5.6MB

    • memory/3520-1-0x00000000004F0000-0x00000000005E6000-memory.dmp

      Filesize

      984KB

    • memory/3520-0-0x0000000074A0E000-0x0000000074A0F000-memory.dmp

      Filesize

      4KB

    • memory/3520-21-0x0000000074A00000-0x00000000751B0000-memory.dmp

      Filesize

      7.7MB