Analysis

  • max time kernel
    148s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-11-2024 10:13

General

  • Target

    HSG-IVN-2093456FIN.exe

  • Size

    894KB

  • MD5

    53b79ccad8bee5f9027601500616a975

  • SHA1

    0f52c391a610e1d79d148dd70a4cd90c952dddae

  • SHA256

    0b606f6d0ce44922bf456bee5e6e8acf1b343521b2d5d4c5838926cc0484e052

  • SHA512

    5422ef61678dd02424492e1c02ae96e063f8a43713043560db3e3c788e899cb11bc5b8de9c4318f51491deb5bc4bb9ddfb6fa85eabc3c2f3322d17e0c9cc481b

  • SSDEEP

    12288:260nsDt02aQqTSpqdtQxIUPXnohqsMtc18p1THM4yHXxKoO3XdgO6wSmv:21naampqdGTocsEcn467O3Xdgrk

Malware Config

Extracted

Family

remcos

Botnet

czt

C2

aadavidron.duckdns.org:53848

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    Windeep.exe

  • copy_folder

    AppDir

  • 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-FS2BKT

  • 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.

  • Remcos family
  • Detected Nirsoft tools 3 IoCs

    Free utilities often used by attackers which can steal passwords, product keys, etc.

  • NirSoft MailPassView 1 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 1 IoCs

    Password recovery tool for various web browsers

  • 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.

  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 8 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 behavior: MapViewOfSection 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 31 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\HSG-IVN-2093456FIN.exe
    "C:\Users\Admin\AppData\Local\Temp\HSG-IVN-2093456FIN.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3352
    • 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\HSG-IVN-2093456FIN.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4768
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\VSNeHYIHmY.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3664
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\VSNeHYIHmY" /XML "C:\Users\Admin\AppData\Local\Temp\tmpEC63.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:4204
    • C:\Users\Admin\AppData\Local\Temp\HSG-IVN-2093456FIN.exe
      "C:\Users\Admin\AppData\Local\Temp\HSG-IVN-2093456FIN.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3532
      • C:\Users\Admin\AppData\Local\Temp\HSG-IVN-2093456FIN.exe
        C:\Users\Admin\AppData\Local\Temp\HSG-IVN-2093456FIN.exe /stext "C:\Users\Admin\AppData\Local\Temp\zzqqkferiixydtufeoalyz"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        PID:1700
      • C:\Users\Admin\AppData\Local\Temp\HSG-IVN-2093456FIN.exe
        C:\Users\Admin\AppData\Local\Temp\HSG-IVN-2093456FIN.exe /stext "C:\Users\Admin\AppData\Local\Temp\bcdilypkwqpdfzqjvzvmbentqq"
        3⤵
        • Accesses Microsoft Outlook accounts
        • System Location Discovery: System Language Discovery
        PID:1544
      • C:\Users\Admin\AppData\Local\Temp\HSG-IVN-2093456FIN.exe
        C:\Users\Admin\AppData\Local\Temp\HSG-IVN-2093456FIN.exe /stext "C:\Users\Admin\AppData\Local\Temp\lwibmqamsyiipffnekhgmrhczezbh"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3028

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\remcos\logs.dat

    Filesize

    144B

    MD5

    df88c0b50eb4e364be4f5e7c341f9787

    SHA1

    e79a2a5e39212b6db54551f47611f1eaa6641bfa

    SHA256

    6ff1b57986f2cbc9e5aae2f843e8b989b430046fcbcb6e7036ebd4521ae42703

    SHA512

    aa4069691f3b87a5ac104c72dba0387a35f5f1cf945b5af89e2ffe0f194ca091f1b396dfb25e5786df8497c14cf060b7d1275277ee260cfb95ab1e77bcf7948a

  • 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

    2608a4ddcff38ea442020661404ade9d

    SHA1

    a3009b1654908b1cdb237f634794ebd6878746ac

    SHA256

    45523932b82ddade22e529988925b665d29cbb7cb08446caff7e410dd46602d5

    SHA512

    3c059f2175ace8234de9851d69830dc5fa8f578e73866ec0f6e67459e43fc560a8343c947e17c1412860c4655c9fdf7855daf3f6d6be7725dd72013a2d13582c

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_kyboroqu.vvd.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmpEC63.tmp

    Filesize

    1KB

    MD5

    ec9794e5752481691025c9cb52a82161

    SHA1

    3c70bf0a56312e84d4bfd42768bd33cbd06b91d0

    SHA256

    f92fcb6fef334d28b0ae8b74ca23e3a881d824f86453dfaea166aebf1f796a15

    SHA512

    f1ca06d0d9377f2fbdd9b49089b4c265603ca22c233795fe1c391c45e989386583536d06fb17042c53bd4dfbfce70b2c022d5a1a15af6a7f0609e4a61962b6f9

  • C:\Users\Admin\AppData\Local\Temp\zzqqkferiixydtufeoalyz

    Filesize

    4KB

    MD5

    c3c5f2de99b7486f697634681e21bab0

    SHA1

    00f90d495c0b2b63fde6532e033fdd2ade25633d

    SHA256

    76296dc29f718988107d35d0e0b835c2bf3fc7405e79e5121aa4738f82b51582

    SHA512

    7c60ffdc093de30e793d20768877f2f586bee3e948767871f9a1139252d5d2f593ba6f88ce0ed5f72c79faddb26186792df0581e4b6c84d405c44d9d12f951b8

  • memory/1544-94-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/1544-95-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/1544-92-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/1700-93-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/1700-91-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/1700-90-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/3028-101-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/3028-100-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/3028-96-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/3352-5-0x0000000004E30000-0x0000000004ECC000-memory.dmp

    Filesize

    624KB

  • memory/3352-10-0x0000000006110000-0x00000000061D4000-memory.dmp

    Filesize

    784KB

  • memory/3352-9-0x0000000074F10000-0x00000000756C0000-memory.dmp

    Filesize

    7.7MB

  • memory/3352-0-0x0000000074F1E000-0x0000000074F1F000-memory.dmp

    Filesize

    4KB

  • memory/3352-8-0x0000000074F1E000-0x0000000074F1F000-memory.dmp

    Filesize

    4KB

  • memory/3352-7-0x0000000005090000-0x00000000050A2000-memory.dmp

    Filesize

    72KB

  • memory/3352-49-0x0000000074F10000-0x00000000756C0000-memory.dmp

    Filesize

    7.7MB

  • memory/3352-6-0x0000000074F10000-0x00000000756C0000-memory.dmp

    Filesize

    7.7MB

  • memory/3352-4-0x0000000004D70000-0x0000000004D7A000-memory.dmp

    Filesize

    40KB

  • memory/3352-3-0x0000000004BC0000-0x0000000004C52000-memory.dmp

    Filesize

    584KB

  • memory/3352-2-0x00000000050D0000-0x0000000005674000-memory.dmp

    Filesize

    5.6MB

  • memory/3352-1-0x0000000000130000-0x0000000000216000-memory.dmp

    Filesize

    920KB

  • memory/3532-123-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3532-131-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3532-38-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3532-148-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3532-119-0x0000000010000000-0x0000000010019000-memory.dmp

    Filesize

    100KB

  • memory/3532-57-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3532-56-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3532-59-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3532-58-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3532-61-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3532-147-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3532-116-0x0000000010000000-0x0000000010019000-memory.dmp

    Filesize

    100KB

  • memory/3532-139-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3532-140-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3532-121-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3532-132-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3532-120-0x0000000010000000-0x0000000010019000-memory.dmp

    Filesize

    100KB

  • memory/3532-52-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3532-32-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3532-35-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3532-124-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3532-30-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3664-33-0x0000000074F10000-0x00000000756C0000-memory.dmp

    Filesize

    7.7MB

  • memory/3664-89-0x0000000007770000-0x0000000007781000-memory.dmp

    Filesize

    68KB

  • memory/3664-88-0x00000000077F0000-0x0000000007886000-memory.dmp

    Filesize

    600KB

  • memory/3664-87-0x00000000075E0000-0x00000000075EA000-memory.dmp

    Filesize

    40KB

  • memory/3664-75-0x0000000007C10000-0x000000000828A000-memory.dmp

    Filesize

    6.5MB

  • memory/3664-76-0x0000000007560000-0x000000000757A000-memory.dmp

    Filesize

    104KB

  • memory/3664-19-0x0000000074F10000-0x00000000756C0000-memory.dmp

    Filesize

    7.7MB

  • memory/3664-73-0x00000000071B0000-0x00000000071CE000-memory.dmp

    Filesize

    120KB

  • memory/3664-74-0x0000000007420000-0x00000000074C3000-memory.dmp

    Filesize

    652KB

  • memory/3664-63-0x00000000757A0000-0x00000000757EC000-memory.dmp

    Filesize

    304KB

  • memory/3664-62-0x00000000071D0000-0x0000000007202000-memory.dmp

    Filesize

    200KB

  • memory/3664-112-0x0000000074F10000-0x00000000756C0000-memory.dmp

    Filesize

    7.7MB

  • memory/4768-23-0x0000000005CF0000-0x0000000005D56000-memory.dmp

    Filesize

    408KB

  • memory/4768-111-0x0000000074F10000-0x00000000756C0000-memory.dmp

    Filesize

    7.7MB

  • memory/4768-105-0x0000000007A00000-0x0000000007A08000-memory.dmp

    Filesize

    32KB

  • memory/4768-104-0x0000000007A20000-0x0000000007A3A000-memory.dmp

    Filesize

    104KB

  • memory/4768-103-0x0000000007920000-0x0000000007934000-memory.dmp

    Filesize

    80KB

  • memory/4768-102-0x0000000007910000-0x000000000791E000-memory.dmp

    Filesize

    56KB

  • memory/4768-77-0x00000000757A0000-0x00000000757EC000-memory.dmp

    Filesize

    304KB

  • memory/4768-55-0x00000000063F0000-0x000000000643C000-memory.dmp

    Filesize

    304KB

  • memory/4768-54-0x00000000063C0000-0x00000000063DE000-memory.dmp

    Filesize

    120KB

  • memory/4768-39-0x0000000005DE0000-0x0000000006134000-memory.dmp

    Filesize

    3.3MB

  • memory/4768-21-0x0000000074F10000-0x00000000756C0000-memory.dmp

    Filesize

    7.7MB

  • memory/4768-22-0x00000000054F0000-0x0000000005512000-memory.dmp

    Filesize

    136KB

  • memory/4768-24-0x0000000005D60000-0x0000000005DC6000-memory.dmp

    Filesize

    408KB

  • memory/4768-18-0x0000000074F10000-0x00000000756C0000-memory.dmp

    Filesize

    7.7MB

  • memory/4768-17-0x0000000005550000-0x0000000005B78000-memory.dmp

    Filesize

    6.2MB

  • memory/4768-16-0x0000000074F10000-0x00000000756C0000-memory.dmp

    Filesize

    7.7MB

  • memory/4768-15-0x0000000002AB0000-0x0000000002AE6000-memory.dmp

    Filesize

    216KB