Analysis

  • max time kernel
    300s
  • max time network
    292s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250314-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/04/2025, 15:06

General

  • Target

    Account Ledger_2025.exe

  • Size

    700KB

  • MD5

    ea0db1fa16704401139cf2da3f30b93c

  • SHA1

    ed294f2e545aee8e70cac971e870605d4438dfb9

  • SHA256

    dec84002b392f2f1cca8cc17540835756b9dc5ba63ed8bc56efe0c56a78b22fc

  • SHA512

    c52901311adaf13061d288db1700b3542b7f7672cc0d38921876fb6b2690716fbb19958e96c4430297567f749fc3edb7a114e9550e5f94c862377b2c4ecbcd50

  • SSDEEP

    12288:rlTT+PfLmuxTFgDA/mdgXKgESuV+y7qxbHvB325tV8B6slRIp4vHHEAmD:ZTiPjmuxBg0+gxhugRZHMnfsRG4vn

Malware Config

Extracted

Family

remcos

Version

1.7 Pro

Botnet

others

C2

othersinr.duckdns.org:24041

Attributes
  • audio_folder

    audio

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    5

  • 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

    odds.dat

  • keylog_flag

    false

  • keylog_folder

    odas

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    remcos_gtokgevvym

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screens

  • screenshot_path

    %AppData%

  • screenshot_time

    1

  • startup_value

    remcos

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • Remcos

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

  • Remcos family
  • 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 19 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Account Ledger_2025.exe
    "C:\Users\Admin\AppData\Local\Temp\Account Ledger_2025.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:220
    • 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\Account Ledger_2025.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3316
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\aWPNVjQXJTIKP.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3628
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\aWPNVjQXJTIKP" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF666.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:3272
    • C:\Users\Admin\AppData\Local\Temp\Account Ledger_2025.exe
      "C:\Users\Admin\AppData\Local\Temp\Account Ledger_2025.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:5688

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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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

    533bfb320fa84c818bd78b6d832d5bd3

    SHA1

    3dff61109a1f1be33c06dedab5afa11dbc942328

    SHA256

    6243b5635cfb31cca8f0b52e14fce89cfdb79cdb03ac5df9a3b306267b72b296

    SHA512

    ebd39fffe09081ec813a200dbb96c47bddf45d15da0162e5320a1a68f6044007297777440aa2e75a77af86a7408b1d180bb565fcb196470341de7b31aca1ef23

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_yasgeakk.drj.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmpF666.tmp

    Filesize

    1KB

    MD5

    e18a67b309f9d74709a00efd9a27e8fa

    SHA1

    ce3732fb0c0961b659e1156518f4ae83f982bf15

    SHA256

    1e99feefe0ae81d24d04dbaa6fd5722950d68abe6f0641177b7fca144b974239

    SHA512

    c57f32b36f09d8ac50cbb7aa573e52db9076a91b378c709dcd7ec31d2433d9f86f2d6a2f262e53719feee4044bd3ae62c6edb556217efe96f6cf4191793eac3b

  • memory/220-8-0x0000000074C90000-0x0000000075440000-memory.dmp

    Filesize

    7.7MB

  • memory/220-4-0x0000000005180000-0x000000000518A000-memory.dmp

    Filesize

    40KB

  • memory/220-6-0x0000000005450000-0x000000000546E000-memory.dmp

    Filesize

    120KB

  • memory/220-7-0x0000000074C9E000-0x0000000074C9F000-memory.dmp

    Filesize

    4KB

  • memory/220-5-0x0000000074C90000-0x0000000075440000-memory.dmp

    Filesize

    7.7MB

  • memory/220-9-0x0000000004B10000-0x0000000004B72000-memory.dmp

    Filesize

    392KB

  • memory/220-10-0x0000000007B20000-0x0000000007BBC000-memory.dmp

    Filesize

    624KB

  • memory/220-3-0x00000000050D0000-0x0000000005162000-memory.dmp

    Filesize

    584KB

  • memory/220-0-0x0000000074C9E000-0x0000000074C9F000-memory.dmp

    Filesize

    4KB

  • memory/220-2-0x0000000005760000-0x0000000005D04000-memory.dmp

    Filesize

    5.6MB

  • memory/220-52-0x0000000074C90000-0x0000000075440000-memory.dmp

    Filesize

    7.7MB

  • memory/220-1-0x0000000000670000-0x0000000000724000-memory.dmp

    Filesize

    720KB

  • memory/3316-15-0x0000000002200000-0x0000000002236000-memory.dmp

    Filesize

    216KB

  • memory/3316-82-0x0000000007060000-0x0000000007071000-memory.dmp

    Filesize

    68KB

  • memory/3316-16-0x0000000074C90000-0x0000000075440000-memory.dmp

    Filesize

    7.7MB

  • memory/3316-25-0x0000000074C90000-0x0000000075440000-memory.dmp

    Filesize

    7.7MB

  • memory/3316-92-0x0000000074C90000-0x0000000075440000-memory.dmp

    Filesize

    7.7MB

  • memory/3316-17-0x0000000074C90000-0x0000000075440000-memory.dmp

    Filesize

    7.7MB

  • memory/3316-86-0x0000000007180000-0x0000000007188000-memory.dmp

    Filesize

    32KB

  • memory/3316-85-0x00000000071A0000-0x00000000071BA000-memory.dmp

    Filesize

    104KB

  • memory/3316-84-0x00000000070A0000-0x00000000070B4000-memory.dmp

    Filesize

    80KB

  • memory/3316-66-0x0000000075540000-0x000000007558C000-memory.dmp

    Filesize

    304KB

  • memory/3316-81-0x00000000070E0000-0x0000000007176000-memory.dmp

    Filesize

    600KB

  • memory/3316-80-0x0000000006ED0000-0x0000000006EDA000-memory.dmp

    Filesize

    40KB

  • memory/3316-79-0x0000000006E60000-0x0000000006E7A000-memory.dmp

    Filesize

    104KB

  • memory/3316-53-0x0000000005B30000-0x0000000005B4E000-memory.dmp

    Filesize

    120KB

  • memory/3316-54-0x0000000005B70000-0x0000000005BBC000-memory.dmp

    Filesize

    304KB

  • memory/3316-78-0x00000000074A0000-0x0000000007B1A000-memory.dmp

    Filesize

    6.5MB

  • memory/3316-77-0x0000000006B30000-0x0000000006BD3000-memory.dmp

    Filesize

    652KB

  • memory/3628-23-0x00000000056D0000-0x0000000005736000-memory.dmp

    Filesize

    408KB

  • memory/3628-20-0x0000000074C90000-0x0000000075440000-memory.dmp

    Filesize

    7.7MB

  • memory/3628-56-0x0000000075540000-0x000000007558C000-memory.dmp

    Filesize

    304KB

  • memory/3628-55-0x0000000007580000-0x00000000075B2000-memory.dmp

    Filesize

    200KB

  • memory/3628-18-0x0000000005970000-0x0000000005F98000-memory.dmp

    Filesize

    6.2MB

  • memory/3628-22-0x0000000005630000-0x0000000005652000-memory.dmp

    Filesize

    136KB

  • memory/3628-24-0x0000000005740000-0x00000000057A6000-memory.dmp

    Filesize

    408KB

  • memory/3628-75-0x0000000006BB0000-0x0000000006BCE000-memory.dmp

    Filesize

    120KB

  • memory/3628-83-0x0000000007B60000-0x0000000007B6E000-memory.dmp

    Filesize

    56KB

  • memory/3628-19-0x0000000074C90000-0x0000000075440000-memory.dmp

    Filesize

    7.7MB

  • memory/3628-31-0x0000000005FA0000-0x00000000062F4000-memory.dmp

    Filesize

    3.3MB

  • memory/3628-93-0x0000000074C90000-0x0000000075440000-memory.dmp

    Filesize

    7.7MB

  • memory/3628-32-0x0000000074C90000-0x0000000075440000-memory.dmp

    Filesize

    7.7MB

  • memory/5688-46-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/5688-48-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/5688-49-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB