remcos | 7815d02dd41dd657438b4b226f4ac1a33d6a37159e34448627088e1354f9ab69

Analysis

max time kernel
147s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
29-08-2024 15:26

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General

Target

7815d02dd41dd657438b4b226f4ac1a33d6a37159e34448627088e1354f9ab69.exe
Size

950KB
MD5

b8896a4d1adbefcc7fe4cac53b134968
SHA1

e7a68f4c1ac47ecc6cc43b12dc82651cff63f670
SHA256

7815d02dd41dd657438b4b226f4ac1a33d6a37159e34448627088e1354f9ab69
SHA512

408cca545c8556b6191629d40ac69a25a2396e90b1daa74780bf5eec62abf908413836087fb45c48205cd35acd653884fb958cecdd3a25f487b1c3b864e10e83
SSDEEP

24576:1q7ngtNkKoxK5AP2EwiRcsgL5UNs3hpJB3FcU8Q:g7g7kKoKAOEF8UNYhpJ5F/8Q

Score

10^/10

remcos 3456789 discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

3456789

172.93.220.148:45682

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
765-8M14I5
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

Signatures

Remcos
Remcos is a closed-source remote control and surveillance software.
rat 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
5072	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-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation	7815d02dd41dd657438b4b226f4ac1a33d6a37159e34448627088e1354f9ab69.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4960 set thread context of 2312	4960	7815d02dd41dd657438b4b226f4ac1a33d6a37159e34448627088e1354f9ab69.exe	99

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	7815d02dd41dd657438b4b226f4ac1a33d6a37159e34448627088e1354f9ab69.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	7815d02dd41dd657438b4b226f4ac1a33d6a37159e34448627088e1354f9ab69.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
4356	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
5072	powershell.exe
5072	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5072	powershell.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 4960 wrote to memory of 5072	4960	7815d02dd41dd657438b4b226f4ac1a33d6a37159e34448627088e1354f9ab69.exe	95
PID 4960 wrote to memory of 5072	4960	7815d02dd41dd657438b4b226f4ac1a33d6a37159e34448627088e1354f9ab69.exe	95
PID 4960 wrote to memory of 5072	4960	7815d02dd41dd657438b4b226f4ac1a33d6a37159e34448627088e1354f9ab69.exe	95
PID 4960 wrote to memory of 4356	4960	7815d02dd41dd657438b4b226f4ac1a33d6a37159e34448627088e1354f9ab69.exe	97
PID 4960 wrote to memory of 4356	4960	7815d02dd41dd657438b4b226f4ac1a33d6a37159e34448627088e1354f9ab69.exe	97
PID 4960 wrote to memory of 4356	4960	7815d02dd41dd657438b4b226f4ac1a33d6a37159e34448627088e1354f9ab69.exe	97
PID 4960 wrote to memory of 2312	4960	7815d02dd41dd657438b4b226f4ac1a33d6a37159e34448627088e1354f9ab69.exe	99
PID 4960 wrote to memory of 2312	4960	7815d02dd41dd657438b4b226f4ac1a33d6a37159e34448627088e1354f9ab69.exe	99
PID 4960 wrote to memory of 2312	4960	7815d02dd41dd657438b4b226f4ac1a33d6a37159e34448627088e1354f9ab69.exe	99
PID 4960 wrote to memory of 2312	4960	7815d02dd41dd657438b4b226f4ac1a33d6a37159e34448627088e1354f9ab69.exe	99
PID 4960 wrote to memory of 2312	4960	7815d02dd41dd657438b4b226f4ac1a33d6a37159e34448627088e1354f9ab69.exe	99
PID 4960 wrote to memory of 2312	4960	7815d02dd41dd657438b4b226f4ac1a33d6a37159e34448627088e1354f9ab69.exe	99
PID 4960 wrote to memory of 2312	4960	7815d02dd41dd657438b4b226f4ac1a33d6a37159e34448627088e1354f9ab69.exe	99
PID 4960 wrote to memory of 2312	4960	7815d02dd41dd657438b4b226f4ac1a33d6a37159e34448627088e1354f9ab69.exe	99
PID 4960 wrote to memory of 2312	4960	7815d02dd41dd657438b4b226f4ac1a33d6a37159e34448627088e1354f9ab69.exe	99
PID 4960 wrote to memory of 2312	4960	7815d02dd41dd657438b4b226f4ac1a33d6a37159e34448627088e1354f9ab69.exe	99
PID 4960 wrote to memory of 2312	4960	7815d02dd41dd657438b4b226f4ac1a33d6a37159e34448627088e1354f9ab69.exe	99
PID 4960 wrote to memory of 2312	4960	7815d02dd41dd657438b4b226f4ac1a33d6a37159e34448627088e1354f9ab69.exe	99

C:\Users\Admin\AppData\Local\Temp\7815d02dd41dd657438b4b226f4ac1a33d6a37159e34448627088e1354f9ab69.exe
"C:\Users\Admin\AppData\Local\Temp\7815d02dd41dd657438b4b226f4ac1a33d6a37159e34448627088e1354f9ab69.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4960
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\bmkNCLNkqvOpVZ.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:5072
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\bmkNCLNkqvOpVZ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD6D8.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:4356
- C:\Users\Admin\AppData\Local\Temp\7815d02dd41dd657438b4b226f4ac1a33d6a37159e34448627088e1354f9ab69.exe
  "C:\Users\Admin\AppData\Local\Temp\7815d02dd41dd657438b4b226f4ac1a33d6a37159e34448627088e1354f9ab69.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2312

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_0d2rdwuj.hgi.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpD6D8.tmp

Filesize
1KB

MD5
1c953f786dcfd9c5ddca897b7b98afcd

SHA1
03b7f2522f523ce976d582383e273d4d92494ca0

SHA256
c11f4ef9c71c6b5e8c0f511c08553179895ef96c43156800355d8e8ba883756c

SHA512
176a2e1d6955c53ba514722f36ca46564da57ca656fe4c4e27a6e69dba51fb2ab477c79fce5ba41102c10554e449a408dca8f8b360efa7b6f1dc9c15c8057b40

Download Submit
memory/2312-31-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2312-82-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2312-79-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2312-46-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2312-78-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2312-43-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2312-74-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2312-33-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2312-75-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2312-76-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2312-81-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2312-77-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2312-80-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2312-40-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2312-38-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2312-29-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2312-45-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4960-10-0x0000000006450000-0x00000000064EC000-memory.dmp

Filesize
624KB

Download
memory/4960-1-0x0000000000460000-0x0000000000554000-memory.dmp

Filesize
976KB

Download
memory/4960-0-0x0000000074A3E000-0x0000000074A3F000-memory.dmp

Filesize
4KB

Download
memory/4960-6-0x0000000007C70000-0x0000000007C88000-memory.dmp

Filesize
96KB

Download
memory/4960-5-0x0000000074A30000-0x00000000751E0000-memory.dmp

Filesize
7.7MB

Download
memory/4960-2-0x00000000054B0000-0x0000000005A54000-memory.dmp

Filesize
5.6MB

Download
memory/4960-3-0x0000000004FA0000-0x0000000005032000-memory.dmp

Filesize
584KB

Download
memory/4960-9-0x0000000006190000-0x000000000624E000-memory.dmp

Filesize
760KB

Download
memory/4960-41-0x0000000074A30000-0x00000000751E0000-memory.dmp

Filesize
7.7MB

Download
memory/4960-8-0x0000000074A30000-0x00000000751E0000-memory.dmp

Filesize
7.7MB

Download
memory/4960-7-0x0000000074A3E000-0x0000000074A3F000-memory.dmp

Filesize
4KB

Download
memory/4960-4-0x0000000004F60000-0x0000000004F6A000-memory.dmp

Filesize
40KB

Download
memory/5072-16-0x0000000074A30000-0x00000000751E0000-memory.dmp

Filesize
7.7MB

Download
memory/5072-44-0x0000000005D30000-0x0000000005D7C000-memory.dmp

Filesize
304KB

Download
memory/5072-49-0x0000000006C60000-0x0000000006C92000-memory.dmp

Filesize
200KB

Download
memory/5072-50-0x000000006F490000-0x000000006F4DC000-memory.dmp

Filesize
304KB

Download
memory/5072-60-0x0000000006240000-0x000000000625E000-memory.dmp

Filesize
120KB

Download
memory/5072-61-0x0000000006EA0000-0x0000000006F43000-memory.dmp

Filesize
652KB

Download
memory/5072-62-0x0000000007610000-0x0000000007C8A000-memory.dmp

Filesize
6.5MB

Download
memory/5072-63-0x0000000006FC0000-0x0000000006FDA000-memory.dmp

Filesize
104KB

Download
memory/5072-64-0x0000000007030000-0x000000000703A000-memory.dmp

Filesize
40KB

Download
memory/5072-65-0x0000000007240000-0x00000000072D6000-memory.dmp

Filesize
600KB

Download
memory/5072-66-0x00000000071C0000-0x00000000071D1000-memory.dmp

Filesize
68KB

Download
memory/5072-67-0x00000000071F0000-0x00000000071FE000-memory.dmp

Filesize
56KB

Download
memory/5072-68-0x0000000007200000-0x0000000007214000-memory.dmp

Filesize
80KB

Download
memory/5072-69-0x0000000007300000-0x000000000731A000-memory.dmp

Filesize
104KB

Download
memory/5072-70-0x00000000072E0000-0x00000000072E8000-memory.dmp

Filesize
32KB

Download
memory/5072-73-0x0000000074A30000-0x00000000751E0000-memory.dmp

Filesize
7.7MB

Download
memory/5072-42-0x0000000005CA0000-0x0000000005CBE000-memory.dmp

Filesize
120KB

Download
memory/5072-34-0x00000000056C0000-0x0000000005A14000-memory.dmp

Filesize
3.3MB

Download
memory/5072-21-0x0000000004E80000-0x0000000004EE6000-memory.dmp

Filesize
408KB

Download
memory/5072-23-0x0000000074A30000-0x00000000751E0000-memory.dmp

Filesize
7.7MB

Download
memory/5072-22-0x0000000005650000-0x00000000056B6000-memory.dmp

Filesize
408KB

Download
memory/5072-20-0x0000000004BE0000-0x0000000004C02000-memory.dmp

Filesize
136KB

Download
memory/5072-18-0x0000000074A30000-0x00000000751E0000-memory.dmp

Filesize
7.7MB

Download
memory/5072-17-0x0000000004F30000-0x0000000005558000-memory.dmp

Filesize
6.2MB

Download
memory/5072-15-0x0000000002390000-0x00000000023C6000-memory.dmp

Filesize
216KB

Download