remcos | 90199e919b753c405f76a253d0994209b7231e9f1927d9af81e6bc022f93235b

Analysis

max time kernel
150s
max time network
151s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
13-08-2023 10:05

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General

Target

90199e919b753c405f76a253d0994209b7231e9f1927d9af81e6bc022f93235bexeexe_JC.exe
Size

1.6MB
MD5

9286304f3592ab2de2d549722e6869b8
SHA1

fee5ef729c85412275c371da5d1360fae7a87e44
SHA256

90199e919b753c405f76a253d0994209b7231e9f1927d9af81e6bc022f93235b
SHA512

59e323202b6c9ba2239e8eaf2d6c4bc416a61ce28edeace8655791b81023c253aba6f87075752bbbe3d127fd45837bd7d3abfc44f768266cc1325289ce030d9a
SSDEEP

49152:MrS/XYg7k3aKoznVWeOYvsEyKbNWCpQf:MiXPjB5PFJy

Score

10^/10

remcos remotehost persistence rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

212.193.30.230:3343

79.110.49.161:3343

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
Rmc-CQL1U6
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.
rat remcos

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

90199e919b753c405f76a253d0994209b7231e9f1927d9af81e6bc022f93235bexeexe_JC.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-377084978-2088738870-2818360375-1000\Software\Microsoft\Windows\CurrentVersion\Run\Evmswr = "C:\\Users\\Admin\\AppData\\Roaming\\Evmswr.exe"	90199e919b753c405f76a253d0994209b7231e9f1927d9af81e6bc022f93235bexeexe_JC.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

90199e919b753c405f76a253d0994209b7231e9f1927d9af81e6bc022f93235bexeexe_JC.exe

description	pid	process	target process
PID 2528 set thread context of 1784	2528	90199e919b753c405f76a253d0994209b7231e9f1927d9af81e6bc022f93235bexeexe_JC.exe	MSBuild.exe

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

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

powershell.exe

pid process

1916 powershell.exe

pid	process
1916	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

90199e919b753c405f76a253d0994209b7231e9f1927d9af81e6bc022f93235bexeexe_JC.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	2528	90199e919b753c405f76a253d0994209b7231e9f1927d9af81e6bc022f93235bexeexe_JC.exe
Token: SeDebugPrivilege	1916	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

MSBuild.exe

pid process

1784 MSBuild.exe

pid	process
1784	MSBuild.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

90199e919b753c405f76a253d0994209b7231e9f1927d9af81e6bc022f93235bexeexe_JC.execmd.exe

description	pid	process	target process
PID 2528 wrote to memory of 1636	2528	90199e919b753c405f76a253d0994209b7231e9f1927d9af81e6bc022f93235bexeexe_JC.exe	cmd.exe
PID 2528 wrote to memory of 1636	2528	90199e919b753c405f76a253d0994209b7231e9f1927d9af81e6bc022f93235bexeexe_JC.exe	cmd.exe
PID 2528 wrote to memory of 1636	2528	90199e919b753c405f76a253d0994209b7231e9f1927d9af81e6bc022f93235bexeexe_JC.exe	cmd.exe
PID 2528 wrote to memory of 1636	2528	90199e919b753c405f76a253d0994209b7231e9f1927d9af81e6bc022f93235bexeexe_JC.exe	cmd.exe
PID 1636 wrote to memory of 1916	1636	cmd.exe	powershell.exe
PID 1636 wrote to memory of 1916	1636	cmd.exe	powershell.exe
PID 1636 wrote to memory of 1916	1636	cmd.exe	powershell.exe
PID 1636 wrote to memory of 1916	1636	cmd.exe	powershell.exe
PID 2528 wrote to memory of 1784	2528	90199e919b753c405f76a253d0994209b7231e9f1927d9af81e6bc022f93235bexeexe_JC.exe	MSBuild.exe
PID 2528 wrote to memory of 1784	2528	90199e919b753c405f76a253d0994209b7231e9f1927d9af81e6bc022f93235bexeexe_JC.exe	MSBuild.exe
PID 2528 wrote to memory of 1784	2528	90199e919b753c405f76a253d0994209b7231e9f1927d9af81e6bc022f93235bexeexe_JC.exe	MSBuild.exe
PID 2528 wrote to memory of 1784	2528	90199e919b753c405f76a253d0994209b7231e9f1927d9af81e6bc022f93235bexeexe_JC.exe	MSBuild.exe
PID 2528 wrote to memory of 1784	2528	90199e919b753c405f76a253d0994209b7231e9f1927d9af81e6bc022f93235bexeexe_JC.exe	MSBuild.exe
PID 2528 wrote to memory of 1784	2528	90199e919b753c405f76a253d0994209b7231e9f1927d9af81e6bc022f93235bexeexe_JC.exe	MSBuild.exe
PID 2528 wrote to memory of 1784	2528	90199e919b753c405f76a253d0994209b7231e9f1927d9af81e6bc022f93235bexeexe_JC.exe	MSBuild.exe
PID 2528 wrote to memory of 1784	2528	90199e919b753c405f76a253d0994209b7231e9f1927d9af81e6bc022f93235bexeexe_JC.exe	MSBuild.exe
PID 2528 wrote to memory of 1784	2528	90199e919b753c405f76a253d0994209b7231e9f1927d9af81e6bc022f93235bexeexe_JC.exe	MSBuild.exe
PID 2528 wrote to memory of 1784	2528	90199e919b753c405f76a253d0994209b7231e9f1927d9af81e6bc022f93235bexeexe_JC.exe	MSBuild.exe
PID 2528 wrote to memory of 1784	2528	90199e919b753c405f76a253d0994209b7231e9f1927d9af81e6bc022f93235bexeexe_JC.exe	MSBuild.exe
PID 2528 wrote to memory of 1784	2528	90199e919b753c405f76a253d0994209b7231e9f1927d9af81e6bc022f93235bexeexe_JC.exe	MSBuild.exe
PID 2528 wrote to memory of 1784	2528	90199e919b753c405f76a253d0994209b7231e9f1927d9af81e6bc022f93235bexeexe_JC.exe	MSBuild.exe

C:\Users\Admin\AppData\Local\Temp\90199e919b753c405f76a253d0994209b7231e9f1927d9af81e6bc022f93235bexeexe_JC.exe
"C:\Users\Admin\AppData\Local\Temp\90199e919b753c405f76a253d0994209b7231e9f1927d9af81e6bc022f93235bexeexe_JC.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2528

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c powershell set-mppreference -exclusionpath C:\
2⤵
- Suspicious use of WriteProcessMemory
PID:1636

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
powershell set-mppreference -exclusionpath C:\
3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1916

C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
2⤵
- Suspicious use of SetWindowsHookEx
PID:1784

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
0fb834fad97fd76c0d5cdf24162aece0

SHA1
ebe96f48488031a6c41e94c67f3dcb1406c17429

SHA256
325a4b8c46cbbc5c06a0d2ad38cf0d0b7d39090f2511efff2123d8c02e30dcb5

SHA512
55e5084c521d9c9d6c317b58f83b249d99c829ba8256b5e36c25fba78716aebc3ef18082f8cfe22dd0f8cf5ae13f7b45f8c8dd593c8b6d51facdb324534a0b87

Download Submit
memory/1784-1161-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/1784-1175-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/1916-1171-0x00000000027D0000-0x0000000002810000-memory.dmp

Filesize
256KB

Download
memory/1916-1170-0x0000000073F50000-0x00000000744FB000-memory.dmp

Filesize
5.7MB

Download
memory/1916-1169-0x0000000073F50000-0x00000000744FB000-memory.dmp

Filesize
5.7MB

Download
memory/1916-1172-0x00000000027D0000-0x0000000002810000-memory.dmp

Filesize
256KB

Download
memory/1916-1173-0x0000000073F50000-0x00000000744FB000-memory.dmp

Filesize
5.7MB

Download
memory/2528-85-0x0000000005D70000-0x0000000005E5F000-memory.dmp

Filesize
956KB

Download
memory/2528-97-0x0000000005D70000-0x0000000005E5F000-memory.dmp

Filesize
956KB

Download
memory/2528-59-0x0000000005D70000-0x0000000005E5F000-memory.dmp

Filesize
956KB

Download
memory/2528-63-0x0000000005D70000-0x0000000005E5F000-memory.dmp

Filesize
956KB

Download
memory/2528-61-0x0000000005D70000-0x0000000005E5F000-memory.dmp

Filesize
956KB

Download
memory/2528-65-0x0000000005D70000-0x0000000005E5F000-memory.dmp

Filesize
956KB

Download
memory/2528-67-0x0000000005D70000-0x0000000005E5F000-memory.dmp

Filesize
956KB

Download
memory/2528-71-0x0000000005D70000-0x0000000005E5F000-memory.dmp

Filesize
956KB

Download
memory/2528-69-0x0000000005D70000-0x0000000005E5F000-memory.dmp

Filesize
956KB

Download
memory/2528-73-0x0000000005D70000-0x0000000005E5F000-memory.dmp

Filesize
956KB

Download
memory/2528-77-0x0000000005D70000-0x0000000005E5F000-memory.dmp

Filesize
956KB

Download
memory/2528-75-0x0000000005D70000-0x0000000005E5F000-memory.dmp

Filesize
956KB

Download
memory/2528-79-0x0000000005D70000-0x0000000005E5F000-memory.dmp

Filesize
956KB

Download
memory/2528-81-0x0000000005D70000-0x0000000005E5F000-memory.dmp

Filesize
956KB

Download
memory/2528-83-0x0000000005D70000-0x0000000005E5F000-memory.dmp

Filesize
956KB

Download
memory/2528-87-0x0000000005D70000-0x0000000005E5F000-memory.dmp

Filesize
956KB

Download
memory/2528-57-0x0000000005D70000-0x0000000005E64000-memory.dmp

Filesize
976KB

Download
memory/2528-91-0x0000000005D70000-0x0000000005E5F000-memory.dmp

Filesize
956KB

Download
memory/2528-89-0x0000000005D70000-0x0000000005E5F000-memory.dmp

Filesize
956KB

Download
memory/2528-95-0x0000000005D70000-0x0000000005E5F000-memory.dmp

Filesize
956KB

Download
memory/2528-93-0x0000000005D70000-0x0000000005E5F000-memory.dmp

Filesize
956KB

Download
memory/2528-58-0x0000000005D70000-0x0000000005E5F000-memory.dmp

Filesize
956KB

Download
memory/2528-99-0x0000000005D70000-0x0000000005E5F000-memory.dmp

Filesize
956KB

Download
memory/2528-101-0x0000000005D70000-0x0000000005E5F000-memory.dmp

Filesize
956KB

Download
memory/2528-105-0x0000000005D70000-0x0000000005E5F000-memory.dmp

Filesize
956KB

Download
memory/2528-103-0x0000000005D70000-0x0000000005E5F000-memory.dmp

Filesize
956KB

Download
memory/2528-107-0x0000000005D70000-0x0000000005E5F000-memory.dmp

Filesize
956KB

Download
memory/2528-111-0x0000000005D70000-0x0000000005E5F000-memory.dmp

Filesize
956KB

Download
memory/2528-109-0x0000000005D70000-0x0000000005E5F000-memory.dmp

Filesize
956KB

Download
memory/2528-113-0x0000000005D70000-0x0000000005E5F000-memory.dmp

Filesize
956KB

Download
memory/2528-115-0x0000000005D70000-0x0000000005E5F000-memory.dmp

Filesize
956KB

Download
memory/2528-117-0x0000000005D70000-0x0000000005E5F000-memory.dmp

Filesize
956KB

Download
memory/2528-121-0x0000000005D70000-0x0000000005E5F000-memory.dmp

Filesize
956KB

Download
memory/2528-119-0x0000000005D70000-0x0000000005E5F000-memory.dmp

Filesize
956KB

Download
memory/2528-974-0x0000000073F70000-0x000000007465E000-memory.dmp

Filesize
6.9MB

Download
memory/2528-1075-0x0000000004E60000-0x0000000004EA0000-memory.dmp

Filesize
256KB

Download
memory/2528-56-0x0000000004E60000-0x0000000004EA0000-memory.dmp

Filesize
256KB

Download
memory/2528-55-0x0000000073F70000-0x000000007465E000-memory.dmp

Filesize
6.9MB

Download
memory/2528-54-0x00000000008A0000-0x0000000000A3A000-memory.dmp

Filesize
1.6MB

Download
memory/2528-1136-0x00000000006B0000-0x00000000006B1000-memory.dmp

Filesize
4KB

Download
memory/2528-1137-0x0000000005CC0000-0x0000000005D30000-memory.dmp

Filesize
448KB

Download
memory/2528-1138-0x00000000050F0000-0x000000000513C000-memory.dmp

Filesize
304KB

Download
memory/2528-1160-0x0000000073F70000-0x000000007465E000-memory.dmp

Filesize
6.9MB

Download