remcos | 2c793599c11abaf3a7fa2a700a6ef7b7cc9980d0078bd071a508145ffb91a23c

General

Target

2c793599c11abaf3a7fa2a700a6ef7b7cc9980d0078bd071a508145ffb91a23c.exe
Size

965KB
MD5

c8ca043e0b7692bcb5dc31f8d803199a
SHA1

1883922e023d5cf4ef250abebb660ce9c09ba7f4
SHA256

2c793599c11abaf3a7fa2a700a6ef7b7cc9980d0078bd071a508145ffb91a23c
SHA512

9f55fda0983924d92e800ab3bec8c182d265ae4d9e69b8710742c46f12dfc2a0f827f86984ade9d89a1b17425aa33aae344b231114f6ab574d552e5f46e765c0
SSDEEP

12288:Vp+rgRNyA55IxJ+feDOa9rZj5XqkJD0QrOod7XxlW91RRz9FQB:VpugRNJI1D39dlfGQrFUx9FE

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-1-5-21-308834014-1004923324-1191300197-1000\Control Panel\International\Geo\Nation	2c793599c11abaf3a7fa2a700a6ef7b7cc9980d0078bd071a508145ffb91a23c.exe

Executes dropped EXE 4 IoCs

pid	Process
3620	sbietrcl.exe
5200	sbietrcl.exe
5676	sbietrcl.exe
5884	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-1-5-21-308834014-1004923324-1191300197-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe"	2c793599c11abaf3a7fa2a700a6ef7b7cc9980d0078bd071a508145ffb91a23c.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3620 set thread context of 5676	3620	sbietrcl.exe	96
PID 5200 set thread context of 5884	5200	sbietrcl.exe	97

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	2c793599c11abaf3a7fa2a700a6ef7b7cc9980d0078bd071a508145ffb91a23c.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
4296	2c793599c11abaf3a7fa2a700a6ef7b7cc9980d0078bd071a508145ffb91a23c.exe
4296	2c793599c11abaf3a7fa2a700a6ef7b7cc9980d0078bd071a508145ffb91a23c.exe
4296	2c793599c11abaf3a7fa2a700a6ef7b7cc9980d0078bd071a508145ffb91a23c.exe
4296	2c793599c11abaf3a7fa2a700a6ef7b7cc9980d0078bd071a508145ffb91a23c.exe
4296	2c793599c11abaf3a7fa2a700a6ef7b7cc9980d0078bd071a508145ffb91a23c.exe
4296	2c793599c11abaf3a7fa2a700a6ef7b7cc9980d0078bd071a508145ffb91a23c.exe
3620	sbietrcl.exe
3620	sbietrcl.exe
3620	sbietrcl.exe
3620	sbietrcl.exe
3620	sbietrcl.exe
3620	sbietrcl.exe
5200	sbietrcl.exe
5200	sbietrcl.exe
5200	sbietrcl.exe
5200	sbietrcl.exe
5200	sbietrcl.exe
5200	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4296	2c793599c11abaf3a7fa2a700a6ef7b7cc9980d0078bd071a508145ffb91a23c.exe
Token: SeDebugPrivilege	3620	sbietrcl.exe
Token: SeDebugPrivilege	5200	sbietrcl.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
5676	sbietrcl.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 5092 wrote to memory of 3620	5092	cmd.exe	94
PID 5092 wrote to memory of 3620	5092	cmd.exe	94
PID 5092 wrote to memory of 3620	5092	cmd.exe	94
PID 4296 wrote to memory of 5200	4296	2c793599c11abaf3a7fa2a700a6ef7b7cc9980d0078bd071a508145ffb91a23c.exe	95
PID 4296 wrote to memory of 5200	4296	2c793599c11abaf3a7fa2a700a6ef7b7cc9980d0078bd071a508145ffb91a23c.exe	95
PID 4296 wrote to memory of 5200	4296	2c793599c11abaf3a7fa2a700a6ef7b7cc9980d0078bd071a508145ffb91a23c.exe	95
PID 3620 wrote to memory of 5676	3620	sbietrcl.exe	96
PID 3620 wrote to memory of 5676	3620	sbietrcl.exe	96
PID 3620 wrote to memory of 5676	3620	sbietrcl.exe	96
PID 3620 wrote to memory of 5676	3620	sbietrcl.exe	96
PID 3620 wrote to memory of 5676	3620	sbietrcl.exe	96
PID 3620 wrote to memory of 5676	3620	sbietrcl.exe	96
PID 3620 wrote to memory of 5676	3620	sbietrcl.exe	96
PID 3620 wrote to memory of 5676	3620	sbietrcl.exe	96
PID 3620 wrote to memory of 5676	3620	sbietrcl.exe	96
PID 5200 wrote to memory of 5884	5200	sbietrcl.exe	97
PID 5200 wrote to memory of 5884	5200	sbietrcl.exe	97
PID 5200 wrote to memory of 5884	5200	sbietrcl.exe	97
PID 5200 wrote to memory of 5884	5200	sbietrcl.exe	97
PID 5200 wrote to memory of 5884	5200	sbietrcl.exe	97
PID 5200 wrote to memory of 5884	5200	sbietrcl.exe	97
PID 5200 wrote to memory of 5884	5200	sbietrcl.exe	97
PID 5200 wrote to memory of 5884	5200	sbietrcl.exe	97
PID 5200 wrote to memory of 5884	5200	sbietrcl.exe	97

C:\Users\Admin\AppData\Local\Temp\2c793599c11abaf3a7fa2a700a6ef7b7cc9980d0078bd071a508145ffb91a23c.exe
"C:\Users\Admin\AppData\Local\Temp\2c793599c11abaf3a7fa2a700a6ef7b7cc9980d0078bd071a508145ffb91a23c.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:4296
- 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:5200
- - 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:5884

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:5092
- 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:3620
- - 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:5676

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
974KB

MD5
2cfb693fc98c5c014ab38a611fc001a1

SHA1
7c5405d0e625c09cbdd4a2f6dededb3377630994

SHA256
d185a735b656bec4ef7693e539e6c56e3096113fd9d18e510efc8752e50bd405

SHA512
f4dc449b375480363444ea3181b92c0d9260d783d769c41fdea46fe0f5a7fc23ab1b7a69b59d4f9cc279214084437a869746653da567bafea692601954d1bdee

Download Submit
memory/3620-38-0x0000000075130000-0x00000000756E1000-memory.dmp

Filesize
5.7MB

Download
memory/3620-25-0x0000000075130000-0x00000000756E1000-memory.dmp

Filesize
5.7MB

Download
memory/3620-24-0x0000000075130000-0x00000000756E1000-memory.dmp

Filesize
5.7MB

Download
memory/4296-23-0x0000000075130000-0x00000000756E1000-memory.dmp

Filesize
5.7MB

Download
memory/4296-2-0x0000000075130000-0x00000000756E1000-memory.dmp

Filesize
5.7MB

Download
memory/4296-18-0x0000000075132000-0x0000000075133000-memory.dmp

Filesize
4KB

Download
memory/4296-6-0x0000000075130000-0x00000000756E1000-memory.dmp

Filesize
5.7MB

Download
memory/4296-5-0x0000000075130000-0x00000000756E1000-memory.dmp

Filesize
5.7MB

Download
memory/4296-0-0x0000000075132000-0x0000000075133000-memory.dmp

Filesize
4KB

Download
memory/4296-27-0x0000000075130000-0x00000000756E1000-memory.dmp

Filesize
5.7MB

Download
memory/4296-19-0x0000000075130000-0x00000000756E1000-memory.dmp

Filesize
5.7MB

Download
memory/4296-1-0x0000000075130000-0x00000000756E1000-memory.dmp

Filesize
5.7MB

Download
memory/5200-28-0x0000000075130000-0x00000000756E1000-memory.dmp

Filesize
5.7MB

Download
memory/5200-41-0x0000000075130000-0x00000000756E1000-memory.dmp

Filesize
5.7MB

Download
memory/5676-35-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/5676-32-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/5676-36-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/5676-31-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/5676-29-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads