remcos | 8fb486798392dbf7aeeae64d1338d5be840b88b9be64e271c83010039a96b5bf

General

Target

8fb486798392dbf7aeeae64d1338d5be840b88b9be64e271c83010039a96b5bf.exe
Size

887KB
MD5

4f17996e37a6f17855f4d99a3952e758
SHA1

a32236cca26fa4d3eb8b2a322f41c22f5aef5f1d
SHA256

8fb486798392dbf7aeeae64d1338d5be840b88b9be64e271c83010039a96b5bf
SHA512

1990ae9e17c1a78207b5588a2520676e8304f7cd431362eb5a50beb64d4ce3dc60f4e37fe874370f23199ddfe91e72801ed257a9edccbd6cfc8a3f3418c24c74
SSDEEP

12288:ZMdcDNLv2uxySCenLFFwcUXLneC8I87rFmfDJUnt2LzcNI0jJnDN8LojGByXH6:DDZEStLDwcUbeCJ3MI0L8KGg

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

127.0.0.1:59321

nnamoo.duckdns.org:59321

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-41EVS0
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 2 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
472	powershell.exe
764	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2260 set thread context of 2800	2260	8fb486798392dbf7aeeae64d1338d5be840b88b9be64e271c83010039a96b5bf.exe	37

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 5 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	8fb486798392dbf7aeeae64d1338d5be840b88b9be64e271c83010039a96b5bf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.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	8fb486798392dbf7aeeae64d1338d5be840b88b9be64e271c83010039a96b5bf.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
1868	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2260	8fb486798392dbf7aeeae64d1338d5be840b88b9be64e271c83010039a96b5bf.exe
2260	8fb486798392dbf7aeeae64d1338d5be840b88b9be64e271c83010039a96b5bf.exe
472	powershell.exe
764	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2260	8fb486798392dbf7aeeae64d1338d5be840b88b9be64e271c83010039a96b5bf.exe
Token: SeDebugPrivilege	472	powershell.exe
Token: SeDebugPrivilege	764	powershell.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 2260 wrote to memory of 472	2260	8fb486798392dbf7aeeae64d1338d5be840b88b9be64e271c83010039a96b5bf.exe	31
PID 2260 wrote to memory of 472	2260	8fb486798392dbf7aeeae64d1338d5be840b88b9be64e271c83010039a96b5bf.exe	31
PID 2260 wrote to memory of 472	2260	8fb486798392dbf7aeeae64d1338d5be840b88b9be64e271c83010039a96b5bf.exe	31
PID 2260 wrote to memory of 472	2260	8fb486798392dbf7aeeae64d1338d5be840b88b9be64e271c83010039a96b5bf.exe	31
PID 2260 wrote to memory of 764	2260	8fb486798392dbf7aeeae64d1338d5be840b88b9be64e271c83010039a96b5bf.exe	33
PID 2260 wrote to memory of 764	2260	8fb486798392dbf7aeeae64d1338d5be840b88b9be64e271c83010039a96b5bf.exe	33
PID 2260 wrote to memory of 764	2260	8fb486798392dbf7aeeae64d1338d5be840b88b9be64e271c83010039a96b5bf.exe	33
PID 2260 wrote to memory of 764	2260	8fb486798392dbf7aeeae64d1338d5be840b88b9be64e271c83010039a96b5bf.exe	33
PID 2260 wrote to memory of 1868	2260	8fb486798392dbf7aeeae64d1338d5be840b88b9be64e271c83010039a96b5bf.exe	34
PID 2260 wrote to memory of 1868	2260	8fb486798392dbf7aeeae64d1338d5be840b88b9be64e271c83010039a96b5bf.exe	34
PID 2260 wrote to memory of 1868	2260	8fb486798392dbf7aeeae64d1338d5be840b88b9be64e271c83010039a96b5bf.exe	34
PID 2260 wrote to memory of 1868	2260	8fb486798392dbf7aeeae64d1338d5be840b88b9be64e271c83010039a96b5bf.exe	34
PID 2260 wrote to memory of 2800	2260	8fb486798392dbf7aeeae64d1338d5be840b88b9be64e271c83010039a96b5bf.exe	37
PID 2260 wrote to memory of 2800	2260	8fb486798392dbf7aeeae64d1338d5be840b88b9be64e271c83010039a96b5bf.exe	37
PID 2260 wrote to memory of 2800	2260	8fb486798392dbf7aeeae64d1338d5be840b88b9be64e271c83010039a96b5bf.exe	37
PID 2260 wrote to memory of 2800	2260	8fb486798392dbf7aeeae64d1338d5be840b88b9be64e271c83010039a96b5bf.exe	37
PID 2260 wrote to memory of 2800	2260	8fb486798392dbf7aeeae64d1338d5be840b88b9be64e271c83010039a96b5bf.exe	37
PID 2260 wrote to memory of 2800	2260	8fb486798392dbf7aeeae64d1338d5be840b88b9be64e271c83010039a96b5bf.exe	37
PID 2260 wrote to memory of 2800	2260	8fb486798392dbf7aeeae64d1338d5be840b88b9be64e271c83010039a96b5bf.exe	37
PID 2260 wrote to memory of 2800	2260	8fb486798392dbf7aeeae64d1338d5be840b88b9be64e271c83010039a96b5bf.exe	37
PID 2260 wrote to memory of 2800	2260	8fb486798392dbf7aeeae64d1338d5be840b88b9be64e271c83010039a96b5bf.exe	37
PID 2260 wrote to memory of 2800	2260	8fb486798392dbf7aeeae64d1338d5be840b88b9be64e271c83010039a96b5bf.exe	37
PID 2260 wrote to memory of 2800	2260	8fb486798392dbf7aeeae64d1338d5be840b88b9be64e271c83010039a96b5bf.exe	37
PID 2260 wrote to memory of 2800	2260	8fb486798392dbf7aeeae64d1338d5be840b88b9be64e271c83010039a96b5bf.exe	37
PID 2260 wrote to memory of 2800	2260	8fb486798392dbf7aeeae64d1338d5be840b88b9be64e271c83010039a96b5bf.exe	37

C:\Users\Admin\AppData\Local\Temp\8fb486798392dbf7aeeae64d1338d5be840b88b9be64e271c83010039a96b5bf.exe
"C:\Users\Admin\AppData\Local\Temp\8fb486798392dbf7aeeae64d1338d5be840b88b9be64e271c83010039a96b5bf.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2260
- 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\8fb486798392dbf7aeeae64d1338d5be840b88b9be64e271c83010039a96b5bf.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:472
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\FVapWeifj.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:764
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\FVapWeifj" /XML "C:\Users\Admin\AppData\Local\Temp\tmpEFBC.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1868
- C:\Users\Admin\AppData\Local\Temp\8fb486798392dbf7aeeae64d1338d5be840b88b9be64e271c83010039a96b5bf.exe
  "C:\Users\Admin\AppData\Local\Temp\8fb486798392dbf7aeeae64d1338d5be840b88b9be64e271c83010039a96b5bf.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2800

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpEFBC.tmp

Filesize
1KB

MD5
ad6ffbf0dd733fdd8b6b5e295c8d4e39

SHA1
2add40b72a6c907cf18a501d4b58b51303357bde

SHA256
90d842a8bf9be0b6268d2c344db2e091e9dad2a3f7c964cda5fbcc73769dda91

SHA512
5dc7460b02f6ee5bb41e6231d4a1c432efce8c208ada4a4564f2fd6a7db158f67c4dd70227e782c8dbc1b6378d692984593438eadf6c66082be41d8838918317

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\LHOL8TP3SEP87HDYF2L6.temp

Filesize
7KB

MD5
a33ee76b214c664273fc2d41e5dba024

SHA1
d4d923ef91bc16c146aa9e4aca1c49b058db7815

SHA256
138c507c7aa1f8c784fb342ad58b41359c7adcb0283de43c3ddaad5c89aed0f1

SHA512
34684ba5e19d1b89b65d04c135a9c174ec223c7cbc9c6981244f6a6b6a241133ab4eadc83f1ba906628732e3046d6144dbc67eea99bb59e2832bbea71cd268cf

Download Submit
memory/2260-0-0x0000000074B4E000-0x0000000074B4F000-memory.dmp

Filesize
4KB

Download
memory/2260-1-0x0000000000B70000-0x0000000000C54000-memory.dmp

Filesize
912KB

Download
memory/2260-2-0x0000000074B40000-0x000000007522E000-memory.dmp

Filesize
6.9MB

Download
memory/2260-3-0x00000000006D0000-0x00000000006E0000-memory.dmp

Filesize
64KB

Download
memory/2260-4-0x0000000074B4E000-0x0000000074B4F000-memory.dmp

Filesize
4KB

Download
memory/2260-5-0x0000000074B40000-0x000000007522E000-memory.dmp

Filesize
6.9MB

Download
memory/2260-6-0x0000000005120000-0x00000000051DE000-memory.dmp

Filesize
760KB

Download
memory/2260-40-0x0000000074B40000-0x000000007522E000-memory.dmp

Filesize
6.9MB

Download
memory/2800-27-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2800-41-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2800-38-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2800-36-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2800-35-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2800-33-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2800-31-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2800-29-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2800-37-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2800-25-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2800-23-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2800-21-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2800-19-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2800-39-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2800-42-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2800-43-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2800-44-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2800-45-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2800-49-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2800-48-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2800-50-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2800-51-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2800-52-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2800-53-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2800-54-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2800-55-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads