remcos | b6d5b071308b14539cd81180e8e237040dba77f71aef5711e2c9183ed8081692

General

Target

b6d5b071308b14539cd81180e8e237040dba77f71aef5711e2c9183ed8081692.exe
Size

1.9MB
MD5

43cb13d13f2590f07d16013ee6bc164d
SHA1

e66f702be42e38f06a004db0b26be4629a2f79d1
SHA256

b6d5b071308b14539cd81180e8e237040dba77f71aef5711e2c9183ed8081692
SHA512

2afcf8eee71c168f562f3c599ea5b880a672f0e6e4439934972d9fd9a01bf4dd967bb600898f0f626440c53d5cb327c873cdfef8487938b854f38a1ae1af451a
SSDEEP

24576:AD39dlfGQrFUspugRNJI2DJnUw9W/j+BeKJWqwH6jv1:AF+QrFUBgq25eKu6jv1

Score

10^/10

remcos host discovery persistence rat spyware stealer

Malware Config

Extracted

Family

remcos

Version

1.7 Pro

Botnet

Host

C2

213.183.58.19:4000

Attributes

audio_folder
audio
audio_path
%AppData%
audio_record_time
5
connect_delay
0
connect_interval
5
copy_file
remcos.exe
copy_folder
remcos
delete_file
false
hide_file
false
hide_keylog_file
true
install_flag
false
install_path
%AppData%
keylog_crypt
true
keylog_file
read.dat
keylog_flag
false
keylog_folder
CastC
keylog_path
%AppData%
mouse_option
false
mutex
remcos_sccafsoidz
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screens
screenshot_path
%AppData%
screenshot_time
1
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
Remcos family
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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-83325578-304917428-1200496059-1000\Control Panel\International\Geo\Nation	b6d5b071308b14539cd81180e8e237040dba77f71aef5711e2c9183ed8081692.exe

Executes dropped EXE 4 IoCs

pid	Process
2560	sbietrcl.exe
4468	sbietrcl.exe
3004	sbietrcl.exe
5280	sbietrcl.exe

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-83325578-304917428-1200496059-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe"	b6d5b071308b14539cd81180e8e237040dba77f71aef5711e2c9183ed8081692.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2560 set thread context of 3004	2560	sbietrcl.exe	99
PID 4468 set thread context of 5280	4468	sbietrcl.exe	102

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	b6d5b071308b14539cd81180e8e237040dba77f71aef5711e2c9183ed8081692.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sbietrcl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sbietrcl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sbietrcl.exe

Suspicious behavior: EnumeratesProcesses 18 IoCs

pid	Process
3968	b6d5b071308b14539cd81180e8e237040dba77f71aef5711e2c9183ed8081692.exe
3968	b6d5b071308b14539cd81180e8e237040dba77f71aef5711e2c9183ed8081692.exe
3968	b6d5b071308b14539cd81180e8e237040dba77f71aef5711e2c9183ed8081692.exe
3968	b6d5b071308b14539cd81180e8e237040dba77f71aef5711e2c9183ed8081692.exe
3968	b6d5b071308b14539cd81180e8e237040dba77f71aef5711e2c9183ed8081692.exe
3968	b6d5b071308b14539cd81180e8e237040dba77f71aef5711e2c9183ed8081692.exe
2560	sbietrcl.exe
2560	sbietrcl.exe
2560	sbietrcl.exe
2560	sbietrcl.exe
2560	sbietrcl.exe
2560	sbietrcl.exe
4468	sbietrcl.exe
4468	sbietrcl.exe
4468	sbietrcl.exe
4468	sbietrcl.exe
4468	sbietrcl.exe
4468	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3968	b6d5b071308b14539cd81180e8e237040dba77f71aef5711e2c9183ed8081692.exe
Token: SeDebugPrivilege	2560	sbietrcl.exe
Token: SeDebugPrivilege	4468	sbietrcl.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3004	sbietrcl.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 5132 wrote to memory of 2560	5132	cmd.exe	97
PID 5132 wrote to memory of 2560	5132	cmd.exe	97
PID 5132 wrote to memory of 2560	5132	cmd.exe	97
PID 3968 wrote to memory of 4468	3968	b6d5b071308b14539cd81180e8e237040dba77f71aef5711e2c9183ed8081692.exe	98
PID 3968 wrote to memory of 4468	3968	b6d5b071308b14539cd81180e8e237040dba77f71aef5711e2c9183ed8081692.exe	98
PID 3968 wrote to memory of 4468	3968	b6d5b071308b14539cd81180e8e237040dba77f71aef5711e2c9183ed8081692.exe	98
PID 2560 wrote to memory of 3004	2560	sbietrcl.exe	99
PID 2560 wrote to memory of 3004	2560	sbietrcl.exe	99
PID 2560 wrote to memory of 3004	2560	sbietrcl.exe	99
PID 2560 wrote to memory of 3004	2560	sbietrcl.exe	99
PID 2560 wrote to memory of 3004	2560	sbietrcl.exe	99
PID 2560 wrote to memory of 3004	2560	sbietrcl.exe	99
PID 2560 wrote to memory of 3004	2560	sbietrcl.exe	99
PID 2560 wrote to memory of 3004	2560	sbietrcl.exe	99
PID 2560 wrote to memory of 3004	2560	sbietrcl.exe	99
PID 4468 wrote to memory of 5280	4468	sbietrcl.exe	102
PID 4468 wrote to memory of 5280	4468	sbietrcl.exe	102
PID 4468 wrote to memory of 5280	4468	sbietrcl.exe	102
PID 4468 wrote to memory of 5280	4468	sbietrcl.exe	102
PID 4468 wrote to memory of 5280	4468	sbietrcl.exe	102
PID 4468 wrote to memory of 5280	4468	sbietrcl.exe	102
PID 4468 wrote to memory of 5280	4468	sbietrcl.exe	102
PID 4468 wrote to memory of 5280	4468	sbietrcl.exe	102
PID 4468 wrote to memory of 5280	4468	sbietrcl.exe	102

C:\Users\Admin\AppData\Local\Temp\b6d5b071308b14539cd81180e8e237040dba77f71aef5711e2c9183ed8081692.exe
"C:\Users\Admin\AppData\Local\Temp\b6d5b071308b14539cd81180e8e237040dba77f71aef5711e2c9183ed8081692.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3968
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4468
- - C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe"
    3⤵
    - Executes dropped EXE
    PID:5280

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe
1⤵
- Suspicious use of WriteProcessMemory
PID:5132
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe
  C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2560
- - C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    PID:3004

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\sbietrcl.exe.log

Filesize
400B

MD5
0a9b4592cd49c3c21f6767c2dabda92f

SHA1
f534297527ae5ccc0ecb2221ddeb8e58daeb8b74

SHA256
c7effe9cb81a70d738dee863991afefab040290d4c4b78b4202383bcb9f88fcd

SHA512
6b878df474e5bbfb8e9e265f15a76560c2ef151dcebc6388c82d7f6f86ffaf83f5ade5a09f1842e493cb6c8fd63b0b88d088c728fd725f7139f965a5ee332307

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe

Filesize
1.9MB

MD5
22d9dd174ce0a964bd290a557c85cd88

SHA1
526cc2715e1f8309c6493a6e7ef89fade290b375

SHA256
d21068610f36995f56b7cd85e7d99ee233f8d3d7ad284c0a43e00a1c8e2ed328

SHA512
9b7d45ee85d579a90d93dd026326d15db9df581f495cc3f25764092a0d6d13775c2d75e1a5ee6a3123335783a568b92423a7568cf98e713e5339000df627adc1

Download Submit
memory/2560-40-0x0000000074760000-0x0000000074D11000-memory.dmp

Filesize
5.7MB

Download
memory/2560-26-0x0000000074760000-0x0000000074D11000-memory.dmp

Filesize
5.7MB

Download
memory/2560-25-0x0000000074760000-0x0000000074D11000-memory.dmp

Filesize
5.7MB

Download
memory/2560-24-0x0000000074760000-0x0000000074D11000-memory.dmp

Filesize
5.7MB

Download
memory/3004-31-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3004-39-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3004-33-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3004-34-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3004-37-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3968-6-0x0000000074760000-0x0000000074D11000-memory.dmp

Filesize
5.7MB

Download
memory/3968-28-0x0000000074760000-0x0000000074D11000-memory.dmp

Filesize
5.7MB

Download
memory/3968-29-0x0000000074760000-0x0000000074D11000-memory.dmp

Filesize
5.7MB

Download
memory/3968-0-0x0000000074762000-0x0000000074763000-memory.dmp

Filesize
4KB

Download
memory/3968-2-0x0000000074760000-0x0000000074D11000-memory.dmp

Filesize
5.7MB

Download
memory/3968-18-0x0000000074762000-0x0000000074763000-memory.dmp

Filesize
4KB

Download
memory/3968-5-0x0000000074760000-0x0000000074D11000-memory.dmp

Filesize
5.7MB

Download
memory/3968-19-0x0000000074760000-0x0000000074D11000-memory.dmp

Filesize
5.7MB

Download
memory/3968-23-0x0000000074760000-0x0000000074D11000-memory.dmp

Filesize
5.7MB

Download
memory/3968-1-0x0000000074760000-0x0000000074D11000-memory.dmp

Filesize
5.7MB

Download
memory/4468-30-0x0000000074760000-0x0000000074D11000-memory.dmp

Filesize
5.7MB

Download
memory/4468-44-0x0000000074760000-0x0000000074D11000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads