Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-12-2024 19:33

General

  • Target

    5322da5b873f65a2099b81101357dda31b2fdf952749517af9754401708052af.exe

  • Size

    613KB

  • MD5

    6ffe0bd2a7d5aa9ca097c61562634d7b

  • SHA1

    02d7fa0c0bec4aaf4aa3473d9bb7c3d4b3dede79

  • SHA256

    5322da5b873f65a2099b81101357dda31b2fdf952749517af9754401708052af

  • SHA512

    2bb3c86904251008b52b287234254f35a1e506ad6b7d8c9252406fddb4b3f21f344a945071d0450538088a99f511ea38d5934af6968de033e0df58b594de5cc6

  • SSDEEP

    12288:ETeUiXmhvW6vx6QYaA9bJMLg+wADijJJsfPKey1:EaUaYbvx6Qxm+gxPtWqe

Malware Config

Extracted

Family

remcos

Version

2.7.1 Pro

Botnet

NE ME

C2

goddywin.freedynamicdns.net:6712

Attributes
  • audio_folder

    MicRecords

  • audio_path

    %AppData%

  • 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

  • install_path

    %AppData%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    Remcos-M8SST8

  • 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

  • take_screenshot_title

    wikipedia;solitaire;

Signatures

  • Remcos

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

  • Remcos family
  • Command and Scripting Interpreter: PowerShell 1 TTPs 3 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 6 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 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 22 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5322da5b873f65a2099b81101357dda31b2fdf952749517af9754401708052af.exe
    "C:\Users\Admin\AppData\Local\Temp\5322da5b873f65a2099b81101357dda31b2fdf952749517af9754401708052af.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:4724
    • 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\5322da5b873f65a2099b81101357dda31b2fdf952749517af9754401708052af.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1252
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\KAsQHWtFbl.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3004
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\KAsQHWtFbl" /XML "C:\Users\Admin\AppData\Local\Temp\tmp815B.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2376
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\KAsQHWtFbl.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3216
    • C:\Users\Admin\AppData\Local\Temp\5322da5b873f65a2099b81101357dda31b2fdf952749517af9754401708052af.exe
      "C:\Users\Admin\AppData\Local\Temp\5322da5b873f65a2099b81101357dda31b2fdf952749517af9754401708052af.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4704

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

    Filesize

    2KB

    MD5

    968cb9309758126772781b83adb8a28f

    SHA1

    8da30e71accf186b2ba11da1797cf67f8f78b47c

    SHA256

    92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

    SHA512

    4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

    Filesize

    18KB

    MD5

    9ed94ac425f0b83eae28b69d58c50996

    SHA1

    d65449ef098a4fcc9b37db88af96a7a6cdbe4a7a

    SHA256

    b121c915e8776f2b30ea43b39d15073dbb3d39c6be09bfe211e5568d225a6629

    SHA512

    0173ddf6f01b612b43da200c46bf5e4ece35d946445b34d2f5b9c508f2e7f57ea6c278755689e56ab0993055bfe296ed4d28f22be2b6b1d8872ff15967ca38ec

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_5tjoiack.guf.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmp815B.tmp

    Filesize

    1KB

    MD5

    bdb4146da1dc08bc7c6f77a7e24e6a65

    SHA1

    f18bc0febe698e27137a21b6bfd3a3def80b8b85

    SHA256

    ce2197388bfdc63ba26e48847a5767e55790ec03734e2e99f13ab86ce852ecaf

    SHA512

    065ef4b52f8c62094cdec4ec846c22b031e64bb793ad7efada0fd9af9718765976a303f7dffe11eb091308d5edbc0cc181f92bee42a211a63b949922c0b73625

  • memory/1252-22-0x0000000005FE0000-0x0000000006002000-memory.dmp

    Filesize

    136KB

  • memory/1252-24-0x00000000060F0000-0x0000000006156000-memory.dmp

    Filesize

    408KB

  • memory/1252-16-0x0000000002E50000-0x0000000002E86000-memory.dmp

    Filesize

    216KB

  • memory/1252-75-0x0000000007920000-0x000000000793E000-memory.dmp

    Filesize

    120KB

  • memory/1252-23-0x0000000006080000-0x00000000060E6000-memory.dmp

    Filesize

    408KB

  • memory/1252-17-0x0000000074CD0000-0x0000000075480000-memory.dmp

    Filesize

    7.7MB

  • memory/1252-18-0x0000000005980000-0x0000000005FA8000-memory.dmp

    Filesize

    6.2MB

  • memory/1252-108-0x0000000074CD0000-0x0000000075480000-memory.dmp

    Filesize

    7.7MB

  • memory/1252-64-0x00000000076E0000-0x0000000007712000-memory.dmp

    Filesize

    200KB

  • memory/1252-97-0x00000000080C0000-0x000000000873A000-memory.dmp

    Filesize

    6.5MB

  • memory/1252-65-0x00000000737A0000-0x00000000737EC000-memory.dmp

    Filesize

    304KB

  • memory/1252-36-0x0000000074CD0000-0x0000000075480000-memory.dmp

    Filesize

    7.7MB

  • memory/1252-63-0x0000000006800000-0x000000000684C000-memory.dmp

    Filesize

    304KB

  • memory/1252-62-0x0000000006750000-0x000000000676E000-memory.dmp

    Filesize

    120KB

  • memory/1252-19-0x0000000074CD0000-0x0000000075480000-memory.dmp

    Filesize

    7.7MB

  • memory/1252-35-0x0000000006160000-0x00000000064B4000-memory.dmp

    Filesize

    3.3MB

  • memory/1252-98-0x0000000007A80000-0x0000000007A9A000-memory.dmp

    Filesize

    104KB

  • memory/1252-101-0x0000000007C80000-0x0000000007C91000-memory.dmp

    Filesize

    68KB

  • memory/1252-100-0x0000000007D00000-0x0000000007D96000-memory.dmp

    Filesize

    600KB

  • memory/1252-99-0x0000000007AF0000-0x0000000007AFA000-memory.dmp

    Filesize

    40KB

  • memory/3004-21-0x0000000074CD0000-0x0000000075480000-memory.dmp

    Filesize

    7.7MB

  • memory/3004-102-0x00000000075B0000-0x00000000075BE000-memory.dmp

    Filesize

    56KB

  • memory/3004-103-0x00000000075C0000-0x00000000075D4000-memory.dmp

    Filesize

    80KB

  • memory/3004-104-0x00000000076C0000-0x00000000076DA000-memory.dmp

    Filesize

    104KB

  • memory/3004-86-0x0000000007250000-0x00000000072F3000-memory.dmp

    Filesize

    652KB

  • memory/3004-76-0x00000000737A0000-0x00000000737EC000-memory.dmp

    Filesize

    304KB

  • memory/3004-38-0x0000000074CD0000-0x0000000075480000-memory.dmp

    Filesize

    7.7MB

  • memory/3004-25-0x0000000074CD0000-0x0000000075480000-memory.dmp

    Filesize

    7.7MB

  • memory/3004-114-0x0000000074CD0000-0x0000000075480000-memory.dmp

    Filesize

    7.7MB

  • memory/3216-87-0x00000000737A0000-0x00000000737EC000-memory.dmp

    Filesize

    304KB

  • memory/3216-105-0x0000000007FB0000-0x0000000007FB8000-memory.dmp

    Filesize

    32KB

  • memory/4704-37-0x0000000000400000-0x0000000000421000-memory.dmp

    Filesize

    132KB

  • memory/4704-61-0x0000000000400000-0x0000000000421000-memory.dmp

    Filesize

    132KB

  • memory/4704-120-0x0000000000400000-0x0000000000421000-memory.dmp

    Filesize

    132KB

  • memory/4704-116-0x0000000000400000-0x0000000000421000-memory.dmp

    Filesize

    132KB

  • memory/4704-50-0x0000000000400000-0x0000000000421000-memory.dmp

    Filesize

    132KB

  • memory/4704-118-0x0000000000400000-0x0000000000421000-memory.dmp

    Filesize

    132KB

  • memory/4704-115-0x0000000000400000-0x0000000000421000-memory.dmp

    Filesize

    132KB

  • memory/4704-40-0x0000000000400000-0x0000000000421000-memory.dmp

    Filesize

    132KB

  • memory/4724-9-0x0000000074CD0000-0x0000000075480000-memory.dmp

    Filesize

    7.7MB

  • memory/4724-8-0x0000000074CDE000-0x0000000074CDF000-memory.dmp

    Filesize

    4KB

  • memory/4724-7-0x0000000005120000-0x000000000512C000-memory.dmp

    Filesize

    48KB

  • memory/4724-10-0x0000000000A40000-0x0000000000AAC000-memory.dmp

    Filesize

    432KB

  • memory/4724-0-0x0000000074CDE000-0x0000000074CDF000-memory.dmp

    Filesize

    4KB

  • memory/4724-6-0x0000000074CD0000-0x0000000075480000-memory.dmp

    Filesize

    7.7MB

  • memory/4724-5-0x0000000004D20000-0x0000000004D2A000-memory.dmp

    Filesize

    40KB

  • memory/4724-4-0x0000000004DA0000-0x0000000004E3C000-memory.dmp

    Filesize

    624KB

  • memory/4724-2-0x0000000005130000-0x00000000056D4000-memory.dmp

    Filesize

    5.6MB

  • memory/4724-11-0x00000000009B0000-0x00000000009DA000-memory.dmp

    Filesize

    168KB

  • memory/4724-1-0x00000000001D0000-0x0000000000270000-memory.dmp

    Filesize

    640KB

  • memory/4724-51-0x0000000074CD0000-0x0000000075480000-memory.dmp

    Filesize

    7.7MB

  • memory/4724-3-0x0000000004C60000-0x0000000004CF2000-memory.dmp

    Filesize

    584KB