remcos | 665529172f4fb478a8c91019a5086e3d0d776a628b7fe0c0e5453aa580921171

General

Target

6fcb2b9e055ed80a6cd600c7c211d8c2d9dcaa959fdf525dd02ac0685a4d6827.exe
Size

934KB
MD5

7cdb1da63c9ff18665e4a85fec748fcd
SHA1

fa49423cb84debb5c378d89c88781c286f4f8e56
SHA256

6fcb2b9e055ed80a6cd600c7c211d8c2d9dcaa959fdf525dd02ac0685a4d6827
SHA512

3ea3fca56456711eb1095f525be927ce4fa3cbdd68fa668078ba543799dc00e0d806d7291986a321303eb395a446c38898574e57d6fc44b18961c08903c68a58
SSDEEP

12288:9J5Qyg1q3ZzWW1O5tmOy4nY9LIvpTo+CmqLvRDVlR9VAqF63hvWCndZl6lXDj:PGyuqAEVApTImalR9WFhuCdTy3

Score

10^/10

remcos remotehost persistence rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

104.250.180.178:7902

Attributes

audio_folder
MicRecords
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
Skyreal.exe
copy_folder
Skyreal
delete_file
false
hide_file
false
hide_keylog_file
false
install_flag
true
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
mouse_option
false
mutex
Sky-K7LT69
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

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

Processes:

6fcb2b9e055ed80a6cd600c7c211d8c2d9dcaa959fdf525dd02ac0685a4d6827.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	6fcb2b9e055ed80a6cd600c7c211d8c2d9dcaa959fdf525dd02ac0685a4d6827.exe

Executes dropped EXE 3 IoCs

Processes:

Skyreal.exeSkyreal.exeSkyreal.exe

pid process

1136 Skyreal.exe
4216 Skyreal.exe
1728 Skyreal.exe

pid	process
1136	Skyreal.exe
4216	Skyreal.exe
1728	Skyreal.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

6fcb2b9e055ed80a6cd600c7c211d8c2d9dcaa959fdf525dd02ac0685a4d6827.exeSkyreal.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Sky-K7LT69 = "\"C:\\ProgramData\\Skyreal\\Skyreal.exe\""	6fcb2b9e055ed80a6cd600c7c211d8c2d9dcaa959fdf525dd02ac0685a4d6827.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Sky-K7LT69 = "\"C:\\ProgramData\\Skyreal\\Skyreal.exe\""	6fcb2b9e055ed80a6cd600c7c211d8c2d9dcaa959fdf525dd02ac0685a4d6827.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Sky-K7LT69 = "\"C:\\ProgramData\\Skyreal\\Skyreal.exe\""	Skyreal.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Sky-K7LT69 = "\"C:\\ProgramData\\Skyreal\\Skyreal.exe\""	Skyreal.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

6fcb2b9e055ed80a6cd600c7c211d8c2d9dcaa959fdf525dd02ac0685a4d6827.exeSkyreal.exe

description	pid	process	target process
PID 4528 set thread context of 1232	4528	6fcb2b9e055ed80a6cd600c7c211d8c2d9dcaa959fdf525dd02ac0685a4d6827.exe	6fcb2b9e055ed80a6cd600c7c211d8c2d9dcaa959fdf525dd02ac0685a4d6827.exe
PID 1136 set thread context of 1728	1136	Skyreal.exe	Skyreal.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

6fcb2b9e055ed80a6cd600c7c211d8c2d9dcaa959fdf525dd02ac0685a4d6827.exeSkyreal.exe

pid	process
4528	6fcb2b9e055ed80a6cd600c7c211d8c2d9dcaa959fdf525dd02ac0685a4d6827.exe
4528	6fcb2b9e055ed80a6cd600c7c211d8c2d9dcaa959fdf525dd02ac0685a4d6827.exe
1136	Skyreal.exe
1136	Skyreal.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

6fcb2b9e055ed80a6cd600c7c211d8c2d9dcaa959fdf525dd02ac0685a4d6827.exeSkyreal.exe

description	pid	process
Token: SeDebugPrivilege	4528	6fcb2b9e055ed80a6cd600c7c211d8c2d9dcaa959fdf525dd02ac0685a4d6827.exe
Token: SeDebugPrivilege	1136	Skyreal.exe

Suspicious use of WriteProcessMemory 33 IoCs

Processes:

6fcb2b9e055ed80a6cd600c7c211d8c2d9dcaa959fdf525dd02ac0685a4d6827.exe6fcb2b9e055ed80a6cd600c7c211d8c2d9dcaa959fdf525dd02ac0685a4d6827.exeSkyreal.exe

description	pid	process	target process
PID 4528 wrote to memory of 2896	4528	6fcb2b9e055ed80a6cd600c7c211d8c2d9dcaa959fdf525dd02ac0685a4d6827.exe	6fcb2b9e055ed80a6cd600c7c211d8c2d9dcaa959fdf525dd02ac0685a4d6827.exe
PID 4528 wrote to memory of 2896	4528	6fcb2b9e055ed80a6cd600c7c211d8c2d9dcaa959fdf525dd02ac0685a4d6827.exe	6fcb2b9e055ed80a6cd600c7c211d8c2d9dcaa959fdf525dd02ac0685a4d6827.exe
PID 4528 wrote to memory of 2896	4528	6fcb2b9e055ed80a6cd600c7c211d8c2d9dcaa959fdf525dd02ac0685a4d6827.exe	6fcb2b9e055ed80a6cd600c7c211d8c2d9dcaa959fdf525dd02ac0685a4d6827.exe
PID 4528 wrote to memory of 1232	4528	6fcb2b9e055ed80a6cd600c7c211d8c2d9dcaa959fdf525dd02ac0685a4d6827.exe	6fcb2b9e055ed80a6cd600c7c211d8c2d9dcaa959fdf525dd02ac0685a4d6827.exe
PID 4528 wrote to memory of 1232	4528	6fcb2b9e055ed80a6cd600c7c211d8c2d9dcaa959fdf525dd02ac0685a4d6827.exe	6fcb2b9e055ed80a6cd600c7c211d8c2d9dcaa959fdf525dd02ac0685a4d6827.exe
PID 4528 wrote to memory of 1232	4528	6fcb2b9e055ed80a6cd600c7c211d8c2d9dcaa959fdf525dd02ac0685a4d6827.exe	6fcb2b9e055ed80a6cd600c7c211d8c2d9dcaa959fdf525dd02ac0685a4d6827.exe
PID 4528 wrote to memory of 1232	4528	6fcb2b9e055ed80a6cd600c7c211d8c2d9dcaa959fdf525dd02ac0685a4d6827.exe	6fcb2b9e055ed80a6cd600c7c211d8c2d9dcaa959fdf525dd02ac0685a4d6827.exe
PID 4528 wrote to memory of 1232	4528	6fcb2b9e055ed80a6cd600c7c211d8c2d9dcaa959fdf525dd02ac0685a4d6827.exe	6fcb2b9e055ed80a6cd600c7c211d8c2d9dcaa959fdf525dd02ac0685a4d6827.exe
PID 4528 wrote to memory of 1232	4528	6fcb2b9e055ed80a6cd600c7c211d8c2d9dcaa959fdf525dd02ac0685a4d6827.exe	6fcb2b9e055ed80a6cd600c7c211d8c2d9dcaa959fdf525dd02ac0685a4d6827.exe
PID 4528 wrote to memory of 1232	4528	6fcb2b9e055ed80a6cd600c7c211d8c2d9dcaa959fdf525dd02ac0685a4d6827.exe	6fcb2b9e055ed80a6cd600c7c211d8c2d9dcaa959fdf525dd02ac0685a4d6827.exe
PID 4528 wrote to memory of 1232	4528	6fcb2b9e055ed80a6cd600c7c211d8c2d9dcaa959fdf525dd02ac0685a4d6827.exe	6fcb2b9e055ed80a6cd600c7c211d8c2d9dcaa959fdf525dd02ac0685a4d6827.exe
PID 4528 wrote to memory of 1232	4528	6fcb2b9e055ed80a6cd600c7c211d8c2d9dcaa959fdf525dd02ac0685a4d6827.exe	6fcb2b9e055ed80a6cd600c7c211d8c2d9dcaa959fdf525dd02ac0685a4d6827.exe
PID 4528 wrote to memory of 1232	4528	6fcb2b9e055ed80a6cd600c7c211d8c2d9dcaa959fdf525dd02ac0685a4d6827.exe	6fcb2b9e055ed80a6cd600c7c211d8c2d9dcaa959fdf525dd02ac0685a4d6827.exe
PID 4528 wrote to memory of 1232	4528	6fcb2b9e055ed80a6cd600c7c211d8c2d9dcaa959fdf525dd02ac0685a4d6827.exe	6fcb2b9e055ed80a6cd600c7c211d8c2d9dcaa959fdf525dd02ac0685a4d6827.exe
PID 4528 wrote to memory of 1232	4528	6fcb2b9e055ed80a6cd600c7c211d8c2d9dcaa959fdf525dd02ac0685a4d6827.exe	6fcb2b9e055ed80a6cd600c7c211d8c2d9dcaa959fdf525dd02ac0685a4d6827.exe
PID 1232 wrote to memory of 1136	1232	6fcb2b9e055ed80a6cd600c7c211d8c2d9dcaa959fdf525dd02ac0685a4d6827.exe	Skyreal.exe
PID 1232 wrote to memory of 1136	1232	6fcb2b9e055ed80a6cd600c7c211d8c2d9dcaa959fdf525dd02ac0685a4d6827.exe	Skyreal.exe
PID 1232 wrote to memory of 1136	1232	6fcb2b9e055ed80a6cd600c7c211d8c2d9dcaa959fdf525dd02ac0685a4d6827.exe	Skyreal.exe
PID 1136 wrote to memory of 4216	1136	Skyreal.exe	Skyreal.exe
PID 1136 wrote to memory of 4216	1136	Skyreal.exe	Skyreal.exe
PID 1136 wrote to memory of 4216	1136	Skyreal.exe	Skyreal.exe
PID 1136 wrote to memory of 1728	1136	Skyreal.exe	Skyreal.exe
PID 1136 wrote to memory of 1728	1136	Skyreal.exe	Skyreal.exe
PID 1136 wrote to memory of 1728	1136	Skyreal.exe	Skyreal.exe
PID 1136 wrote to memory of 1728	1136	Skyreal.exe	Skyreal.exe
PID 1136 wrote to memory of 1728	1136	Skyreal.exe	Skyreal.exe
PID 1136 wrote to memory of 1728	1136	Skyreal.exe	Skyreal.exe
PID 1136 wrote to memory of 1728	1136	Skyreal.exe	Skyreal.exe
PID 1136 wrote to memory of 1728	1136	Skyreal.exe	Skyreal.exe
PID 1136 wrote to memory of 1728	1136	Skyreal.exe	Skyreal.exe
PID 1136 wrote to memory of 1728	1136	Skyreal.exe	Skyreal.exe
PID 1136 wrote to memory of 1728	1136	Skyreal.exe	Skyreal.exe
PID 1136 wrote to memory of 1728	1136	Skyreal.exe	Skyreal.exe

C:\Users\Admin\AppData\Local\Temp\6fcb2b9e055ed80a6cd600c7c211d8c2d9dcaa959fdf525dd02ac0685a4d6827.exe
"C:\Users\Admin\AppData\Local\Temp\6fcb2b9e055ed80a6cd600c7c211d8c2d9dcaa959fdf525dd02ac0685a4d6827.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4528

C:\Users\Admin\AppData\Local\Temp\6fcb2b9e055ed80a6cd600c7c211d8c2d9dcaa959fdf525dd02ac0685a4d6827.exe
"C:\Users\Admin\AppData\Local\Temp\6fcb2b9e055ed80a6cd600c7c211d8c2d9dcaa959fdf525dd02ac0685a4d6827.exe"
2⤵
PID:2896

C:\Users\Admin\AppData\Local\Temp\6fcb2b9e055ed80a6cd600c7c211d8c2d9dcaa959fdf525dd02ac0685a4d6827.exe
"C:\Users\Admin\AppData\Local\Temp\6fcb2b9e055ed80a6cd600c7c211d8c2d9dcaa959fdf525dd02ac0685a4d6827.exe"
2⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1232

C:\ProgramData\Skyreal\Skyreal.exe
"C:\ProgramData\Skyreal\Skyreal.exe"
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1136

C:\ProgramData\Skyreal\Skyreal.exe
"C:\ProgramData\Skyreal\Skyreal.exe"
4⤵
- Executes dropped EXE
PID:4216

C:\ProgramData\Skyreal\Skyreal.exe
"C:\ProgramData\Skyreal\Skyreal.exe"
4⤵
- Executes dropped EXE
- Adds Run key to start application
PID:1728

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4092 --field-trial-handle=2276,i,11674642242468042059,14711253743544118298,262144 --variations-seed-version /prefetch:8
1⤵
PID:2096

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\ProgramData\Skyreal\Skyreal.exe
Filesize
934KB

MD5
7cdb1da63c9ff18665e4a85fec748fcd

SHA1
fa49423cb84debb5c378d89c88781c286f4f8e56

SHA256
6fcb2b9e055ed80a6cd600c7c211d8c2d9dcaa959fdf525dd02ac0685a4d6827

SHA512
3ea3fca56456711eb1095f525be927ce4fa3cbdd68fa668078ba543799dc00e0d806d7291986a321303eb395a446c38898574e57d6fc44b18961c08903c68a58

Download Submit
memory/1136-38-0x0000000073F50000-0x0000000074700000-memory.dmp

Filesize
7.7MB

Download
memory/1136-31-0x0000000005090000-0x00000000050A0000-memory.dmp

Filesize
64KB

Download
memory/1136-29-0x0000000073F50000-0x0000000074700000-memory.dmp

Filesize
7.7MB

Download
memory/1232-12-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1232-13-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1232-30-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1232-17-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1232-15-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1728-40-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1728-39-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1728-37-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1728-35-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4528-16-0x0000000074F00000-0x00000000756B0000-memory.dmp

Filesize
7.7MB

Download
memory/4528-0-0x0000000074F00000-0x00000000756B0000-memory.dmp

Filesize
7.7MB

Download
memory/4528-5-0x00000000059B0000-0x00000000059C0000-memory.dmp

Filesize
64KB

Download
memory/4528-11-0x00000000090F0000-0x000000000918C000-memory.dmp

Filesize
624KB

Download
memory/4528-4-0x0000000074F00000-0x00000000756B0000-memory.dmp

Filesize
7.7MB

Download
memory/4528-3-0x00000000059C0000-0x0000000005A52000-memory.dmp

Filesize
584KB

Download
memory/4528-10-0x0000000006A70000-0x0000000006B28000-memory.dmp

Filesize
736KB

Download
memory/4528-2-0x0000000005E90000-0x0000000006434000-memory.dmp

Filesize
5.6MB

Download
memory/4528-9-0x0000000001570000-0x000000000157E000-memory.dmp

Filesize
56KB

Download
memory/4528-8-0x00000000059B0000-0x00000000059C0000-memory.dmp

Filesize
64KB

Download
memory/4528-1-0x0000000000F00000-0x0000000000FF0000-memory.dmp

Filesize
960KB

Download
memory/4528-7-0x0000000005D60000-0x0000000005D7C000-memory.dmp

Filesize
112KB

Download
memory/4528-6-0x0000000005C00000-0x0000000005C0A000-memory.dmp

Filesize
40KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads