Analysis

  • max time kernel
    119s
  • max time network
    108s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-07-2024 22:05

General

  • Target

    5e6b147668a2daabdd48ab5a50fe6c00N.exe

  • Size

    951KB

  • MD5

    5e6b147668a2daabdd48ab5a50fe6c00

  • SHA1

    a774fbecb16314b81d396cfac947f5be4f095a2b

  • SHA256

    f621ac8874113a6d73876f515e423ca6828c2a7c369e3d87de7e27aeaca926a6

  • SHA512

    bc1b385e00420382c12b6261193535bf9b2932c0c48faba1edc6a4b571a33bf15793908e5cea9ad09222606c9cd662828ddfb702a6c33948bcd93d607f79a5d1

  • SSDEEP

    12288:vIQIr1yi6GQd9HZ5UtcHRhBsLFw3uKeNwv1gfUduAK5eMfT5y3px3I6z7wjx:vOrwl59HZWOxhBsTjNxfUSXAo

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

103.77.243.244:3729

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-GJBYIR

  • 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 2 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 5 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 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5e6b147668a2daabdd48ab5a50fe6c00N.exe
    "C:\Users\Admin\AppData\Local\Temp\5e6b147668a2daabdd48ab5a50fe6c00N.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:1040
    • 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\5e6b147668a2daabdd48ab5a50fe6c00N.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:5040
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\nvwqfCzFzLNjg.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3428
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\nvwqfCzFzLNjg" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE753.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2464
    • C:\Users\Admin\AppData\Local\Temp\5e6b147668a2daabdd48ab5a50fe6c00N.exe
      "C:\Users\Admin\AppData\Local\Temp\5e6b147668a2daabdd48ab5a50fe6c00N.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4412

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_mqakfkgu.ua4.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmpE753.tmp

    Filesize

    1KB

    MD5

    36d72b90f93e72bb65eeb1a939ed9709

    SHA1

    679ba1a26cf9d5d5766599babd6d6cbc1e507654

    SHA256

    7e9d3e4fbc9cce7a63daaf97b2cff6f920b311b5ae03bcb1c1be1c928adc48a1

    SHA512

    423c30ac5dc663589bde7f921dfbe76b198efd5ea67dd0d2512894c9de0f0a8e8cecbf2238254fdce9e120c91c1981f7c6e0a5dc2b83df6b800c635288e0dae6

  • memory/1040-6-0x0000000006570000-0x0000000006650000-memory.dmp

    Filesize

    896KB

  • memory/1040-3-0x0000000004FA0000-0x0000000005032000-memory.dmp

    Filesize

    584KB

  • memory/1040-4-0x0000000004F30000-0x0000000004F3A000-memory.dmp

    Filesize

    40KB

  • memory/1040-5-0x00000000751D0000-0x0000000075980000-memory.dmp

    Filesize

    7.7MB

  • memory/1040-2-0x0000000005550000-0x0000000005AF4000-memory.dmp

    Filesize

    5.6MB

  • memory/1040-7-0x0000000006960000-0x0000000006974000-memory.dmp

    Filesize

    80KB

  • memory/1040-8-0x0000000006110000-0x000000000611A000-memory.dmp

    Filesize

    40KB

  • memory/1040-9-0x0000000006120000-0x000000000612E000-memory.dmp

    Filesize

    56KB

  • memory/1040-10-0x0000000006180000-0x0000000006240000-memory.dmp

    Filesize

    768KB

  • memory/1040-11-0x0000000008DF0000-0x0000000008E8C000-memory.dmp

    Filesize

    624KB

  • memory/1040-42-0x00000000751D0000-0x0000000075980000-memory.dmp

    Filesize

    7.7MB

  • memory/1040-1-0x0000000000430000-0x0000000000524000-memory.dmp

    Filesize

    976KB

  • memory/1040-0-0x00000000751DE000-0x00000000751DF000-memory.dmp

    Filesize

    4KB

  • memory/3428-90-0x0000000007230000-0x0000000007244000-memory.dmp

    Filesize

    80KB

  • memory/3428-89-0x0000000007220000-0x000000000722E000-memory.dmp

    Filesize

    56KB

  • memory/3428-84-0x0000000007060000-0x000000000706A000-memory.dmp

    Filesize

    40KB

  • memory/3428-82-0x0000000007640000-0x0000000007CBA000-memory.dmp

    Filesize

    6.5MB

  • memory/3428-83-0x0000000006FF0000-0x000000000700A000-memory.dmp

    Filesize

    104KB

  • memory/3428-59-0x0000000075A60000-0x0000000075AAC000-memory.dmp

    Filesize

    304KB

  • memory/3428-80-0x0000000006ED0000-0x0000000006F73000-memory.dmp

    Filesize

    652KB

  • memory/3428-91-0x0000000007330000-0x000000000734A000-memory.dmp

    Filesize

    104KB

  • memory/3428-58-0x00000000062A0000-0x00000000062D2000-memory.dmp

    Filesize

    200KB

  • memory/3428-95-0x00000000751D0000-0x0000000075980000-memory.dmp

    Filesize

    7.7MB

  • memory/3428-43-0x00000000751D0000-0x0000000075980000-memory.dmp

    Filesize

    7.7MB

  • memory/3428-31-0x00000000751D0000-0x0000000075980000-memory.dmp

    Filesize

    7.7MB

  • memory/3428-54-0x0000000005CD0000-0x0000000005CEE000-memory.dmp

    Filesize

    120KB

  • memory/4412-53-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4412-22-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4412-23-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4412-102-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4412-30-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4412-100-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4412-56-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4412-57-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4412-99-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4412-98-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4412-97-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4412-28-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4412-24-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4412-81-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/5040-26-0x0000000005730000-0x0000000005796000-memory.dmp

    Filesize

    408KB

  • memory/5040-17-0x0000000004FE0000-0x0000000005608000-memory.dmp

    Filesize

    6.2MB

  • memory/5040-25-0x0000000005690000-0x00000000056B2000-memory.dmp

    Filesize

    136KB

  • memory/5040-87-0x00000000073C0000-0x0000000007456000-memory.dmp

    Filesize

    600KB

  • memory/5040-88-0x0000000006FF0000-0x0000000007001000-memory.dmp

    Filesize

    68KB

  • memory/5040-20-0x00000000751D0000-0x0000000075980000-memory.dmp

    Filesize

    7.7MB

  • memory/5040-18-0x00000000751D0000-0x0000000075980000-memory.dmp

    Filesize

    7.7MB

  • memory/5040-27-0x00000000057A0000-0x0000000005806000-memory.dmp

    Filesize

    408KB

  • memory/5040-92-0x0000000007460000-0x0000000007468000-memory.dmp

    Filesize

    32KB

  • memory/5040-16-0x00000000024F0000-0x0000000002526000-memory.dmp

    Filesize

    216KB

  • memory/5040-96-0x00000000751D0000-0x0000000075980000-memory.dmp

    Filesize

    7.7MB

  • memory/5040-72-0x0000000006330000-0x000000000634E000-memory.dmp

    Filesize

    120KB

  • memory/5040-60-0x0000000075A60000-0x0000000075AAC000-memory.dmp

    Filesize

    304KB

  • memory/5040-37-0x0000000005810000-0x0000000005B64000-memory.dmp

    Filesize

    3.3MB

  • memory/5040-55-0x0000000005E90000-0x0000000005EDC000-memory.dmp

    Filesize

    304KB

  • memory/5040-21-0x00000000751D0000-0x0000000075980000-memory.dmp

    Filesize

    7.7MB