remcos | 437b6c36c64a603dbb3a6d968e8c626cb41a0bb70fb5570ae1aa3f4d3788a7e5

Analysis

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

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
29-12-2024 10:55

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General

Target

ed9fdc716cfd7cc640ec2658883268b5d297c33d316333d2141b8b7265917f9a.exe
Size

829KB
MD5

23c8a1db1a2aaae1a2f2f8c3302a0c1e
SHA1

7d6eaf00cdff48fdc11a1ee81e26d2b2ac865032
SHA256

ed9fdc716cfd7cc640ec2658883268b5d297c33d316333d2141b8b7265917f9a
SHA512

de1fbe44e655a5d446bae78d9220be54a6ba455cfa59fbcb9c2eb671c82bc966b838e05852577aaee1affcf040d70f02d6427ce7c51a7213e3b8ea547f750584
SSDEEP

24576:CWVOV0hHEkBvXSJoKgu2PnN480PaBk6wI:Ci9vXSJoK4vNVmQk6w

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Version

3.3.2 Pro

Botnet

RemoteHost

azuite.ddns.net:7667

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
stub1-LT34V5
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
notepad;solitaire;

Signatures

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

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.

execution

PowerShell

T1059.001

pid	Process
4076	powershell.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	ed9fdc716cfd7cc640ec2658883268b5d297c33d316333d2141b8b7265917f9a.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4832 set thread context of 1200	4832	ed9fdc716cfd7cc640ec2658883268b5d297c33d316333d2141b8b7265917f9a.exe	94

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ed9fdc716cfd7cc640ec2658883268b5d297c33d316333d2141b8b7265917f9a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
3632	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
4832	ed9fdc716cfd7cc640ec2658883268b5d297c33d316333d2141b8b7265917f9a.exe
4832	ed9fdc716cfd7cc640ec2658883268b5d297c33d316333d2141b8b7265917f9a.exe
4076	powershell.exe
4832	ed9fdc716cfd7cc640ec2658883268b5d297c33d316333d2141b8b7265917f9a.exe
4076	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4832	ed9fdc716cfd7cc640ec2658883268b5d297c33d316333d2141b8b7265917f9a.exe
Token: SeDebugPrivilege	4076	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1200	RegSvcs.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 4832 wrote to memory of 4076	4832	ed9fdc716cfd7cc640ec2658883268b5d297c33d316333d2141b8b7265917f9a.exe	90
PID 4832 wrote to memory of 4076	4832	ed9fdc716cfd7cc640ec2658883268b5d297c33d316333d2141b8b7265917f9a.exe	90
PID 4832 wrote to memory of 4076	4832	ed9fdc716cfd7cc640ec2658883268b5d297c33d316333d2141b8b7265917f9a.exe	90
PID 4832 wrote to memory of 3632	4832	ed9fdc716cfd7cc640ec2658883268b5d297c33d316333d2141b8b7265917f9a.exe	92
PID 4832 wrote to memory of 3632	4832	ed9fdc716cfd7cc640ec2658883268b5d297c33d316333d2141b8b7265917f9a.exe	92
PID 4832 wrote to memory of 3632	4832	ed9fdc716cfd7cc640ec2658883268b5d297c33d316333d2141b8b7265917f9a.exe	92
PID 4832 wrote to memory of 1200	4832	ed9fdc716cfd7cc640ec2658883268b5d297c33d316333d2141b8b7265917f9a.exe	94
PID 4832 wrote to memory of 1200	4832	ed9fdc716cfd7cc640ec2658883268b5d297c33d316333d2141b8b7265917f9a.exe	94
PID 4832 wrote to memory of 1200	4832	ed9fdc716cfd7cc640ec2658883268b5d297c33d316333d2141b8b7265917f9a.exe	94
PID 4832 wrote to memory of 1200	4832	ed9fdc716cfd7cc640ec2658883268b5d297c33d316333d2141b8b7265917f9a.exe	94
PID 4832 wrote to memory of 1200	4832	ed9fdc716cfd7cc640ec2658883268b5d297c33d316333d2141b8b7265917f9a.exe	94
PID 4832 wrote to memory of 1200	4832	ed9fdc716cfd7cc640ec2658883268b5d297c33d316333d2141b8b7265917f9a.exe	94
PID 4832 wrote to memory of 1200	4832	ed9fdc716cfd7cc640ec2658883268b5d297c33d316333d2141b8b7265917f9a.exe	94
PID 4832 wrote to memory of 1200	4832	ed9fdc716cfd7cc640ec2658883268b5d297c33d316333d2141b8b7265917f9a.exe	94
PID 4832 wrote to memory of 1200	4832	ed9fdc716cfd7cc640ec2658883268b5d297c33d316333d2141b8b7265917f9a.exe	94
PID 4832 wrote to memory of 1200	4832	ed9fdc716cfd7cc640ec2658883268b5d297c33d316333d2141b8b7265917f9a.exe	94
PID 4832 wrote to memory of 1200	4832	ed9fdc716cfd7cc640ec2658883268b5d297c33d316333d2141b8b7265917f9a.exe	94
PID 4832 wrote to memory of 1200	4832	ed9fdc716cfd7cc640ec2658883268b5d297c33d316333d2141b8b7265917f9a.exe	94

C:\Users\Admin\AppData\Local\Temp\ed9fdc716cfd7cc640ec2658883268b5d297c33d316333d2141b8b7265917f9a.exe
"C:\Users\Admin\AppData\Local\Temp\ed9fdc716cfd7cc640ec2658883268b5d297c33d316333d2141b8b7265917f9a.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:4832
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\hqueiPqLyjHxUl.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4076
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\hqueiPqLyjHxUl" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8A6.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:3632
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:1200

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_qjxktspp.cof.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp8A6.tmp

Filesize
1KB

MD5
cd666886074e5c4f8a8cc2299bdb5d49

SHA1
2871e6098097e5fafe7dc77f50ae5a45965a987e

SHA256
357e13bf26af09ec2b58f04939c0a9559bc1d820c792f64356ff4a22a761494d

SHA512
8de9afb4e1fdec11e92ba5ac951b303c444e6b1ec15e8ab11e820cc0725b08432c60641545c66e3846523d7c1b4eb5aa16eae433526f6bdfa210440b6495384b

Download Submit
C:\Users\Admin\AppData\Roaming\remcos\logs.dat

Filesize
144B

MD5
cf3e6942c4c8668aaeb7e3055805a35f

SHA1
995578e641ad072d96bc3ce4b9e7f3f7186bcf1b

SHA256
1727b7244dddbee04ed7c35f35a956df54a44cc87ba68bede1a3e3d2cc14274f

SHA512
251911f0f4a726e0f3854cf7bb27f4130541a2c4bfef2587dca72ce54fac6978100761a2971f7363233e7befc0bf1a6f703de257db9192b4d181ce17b24080b2

Download Submit
memory/1200-71-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/1200-22-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/1200-23-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/1200-29-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/1200-30-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/1200-33-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/1200-34-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/4076-16-0x0000000005AF0000-0x0000000006118000-memory.dmp

Filesize
6.2MB

Download
memory/4076-59-0x0000000007C00000-0x0000000007C0A000-memory.dmp

Filesize
40KB

Download
memory/4076-17-0x00000000748A0000-0x0000000075050000-memory.dmp

Filesize
7.7MB

Download
memory/4076-15-0x00000000748A0000-0x0000000075050000-memory.dmp

Filesize
7.7MB

Download
memory/4076-14-0x0000000002F60000-0x0000000002F96000-memory.dmp

Filesize
216KB

Download
memory/4076-19-0x00000000058B0000-0x00000000058D2000-memory.dmp

Filesize
136KB

Download
memory/4076-21-0x00000000059C0000-0x0000000005A26000-memory.dmp

Filesize
408KB

Download
memory/4076-68-0x00000000748A0000-0x0000000075050000-memory.dmp

Filesize
7.7MB

Download
memory/4076-65-0x0000000007EB0000-0x0000000007EB8000-memory.dmp

Filesize
32KB

Download
memory/4076-64-0x0000000007ED0000-0x0000000007EEA000-memory.dmp

Filesize
104KB

Download
memory/4076-63-0x0000000007DD0000-0x0000000007DE4000-memory.dmp

Filesize
80KB

Download
memory/4076-62-0x0000000007DC0000-0x0000000007DCE000-memory.dmp

Filesize
56KB

Download
memory/4076-61-0x0000000007D90000-0x0000000007DA1000-memory.dmp

Filesize
68KB

Download
memory/4076-60-0x0000000007E10000-0x0000000007EA6000-memory.dmp

Filesize
600KB

Download
memory/4076-20-0x0000000005950000-0x00000000059B6000-memory.dmp

Filesize
408KB

Download
memory/4076-40-0x0000000006220000-0x0000000006574000-memory.dmp

Filesize
3.3MB

Download
memory/4076-58-0x0000000007B90000-0x0000000007BAA000-memory.dmp

Filesize
104KB

Download
memory/4076-42-0x00000000068B0000-0x00000000068CE000-memory.dmp

Filesize
120KB

Download
memory/4076-43-0x0000000006940000-0x000000000698C000-memory.dmp

Filesize
304KB

Download
memory/4076-44-0x0000000007810000-0x0000000007842000-memory.dmp

Filesize
200KB

Download
memory/4076-45-0x0000000075130000-0x000000007517C000-memory.dmp

Filesize
304KB

Download
memory/4076-55-0x00000000077F0000-0x000000000780E000-memory.dmp

Filesize
120KB

Download
memory/4076-56-0x0000000007860000-0x0000000007903000-memory.dmp

Filesize
652KB

Download
memory/4076-57-0x00000000081E0000-0x000000000885A000-memory.dmp

Filesize
6.5MB

Download
memory/4832-41-0x00000000748A0000-0x0000000075050000-memory.dmp

Filesize
7.7MB

Download
memory/4832-0-0x00000000748AE000-0x00000000748AF000-memory.dmp

Filesize
4KB

Download
memory/4832-3-0x00000000058B0000-0x00000000058C4000-memory.dmp

Filesize
80KB

Download
memory/4832-4-0x0000000005B50000-0x0000000005BE2000-memory.dmp

Filesize
584KB

Download
memory/4832-5-0x00000000748AE000-0x00000000748AF000-memory.dmp

Filesize
4KB

Download
memory/4832-6-0x00000000748A0000-0x0000000075050000-memory.dmp

Filesize
7.7MB

Download
memory/4832-7-0x0000000005E90000-0x0000000005F2C000-memory.dmp

Filesize
624KB

Download
memory/4832-8-0x00000000060E0000-0x00000000061A2000-memory.dmp

Filesize
776KB

Download
memory/4832-9-0x0000000006750000-0x0000000006CF4000-memory.dmp

Filesize
5.6MB

Download
memory/4832-2-0x00000000748A0000-0x0000000075050000-memory.dmp

Filesize
7.7MB

Download
memory/4832-1-0x0000000000EE0000-0x0000000000FB6000-memory.dmp

Filesize
856KB

Download