remcos | f6ad4da75d8e9e6438479894e84c68cf3d0c89a4100e5c3704d63149407ea253

General

Target

f6ad4da75d8e9e6438479894e84c68cf3d0c89a4100e5c3704d63149407ea253.exe
Size

1.9MB
MD5

085a185c2c68665cd64a2da01c45d895
SHA1

ba5e11c757829d273f7b5ee7f62b094c133645e3
SHA256

f6ad4da75d8e9e6438479894e84c68cf3d0c89a4100e5c3704d63149407ea253
SHA512

dc8d8ed6086ebd91ebd30fa6fdad77a5163eda496b81e46879858fe86042f6794ceefa6f9e2cbace396b174809d1c734c54f361d19d6d028856d1bb7017a8f2c
SSDEEP

24576:FD39dlfGQrFUspugRNJI2DJnUw9W/j+BeKJWqwH6h:FF+QrFUBgq25eKu6h

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

Executes dropped EXE 2 IoCs

pid	Process
2948	sbietrcl.exe
2888	sbietrcl.exe

Loads dropped DLL 1 IoCs

pid	Process
1236	f6ad4da75d8e9e6438479894e84c68cf3d0c89a4100e5c3704d63149407ea253.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-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe"	f6ad4da75d8e9e6438479894e84c68cf3d0c89a4100e5c3704d63149407ea253.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2948 set thread context of 2888	2948	sbietrcl.exe	31

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 3 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	f6ad4da75d8e9e6438479894e84c68cf3d0c89a4100e5c3704d63149407ea253.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 12 IoCs

pid	Process
1236	f6ad4da75d8e9e6438479894e84c68cf3d0c89a4100e5c3704d63149407ea253.exe
1236	f6ad4da75d8e9e6438479894e84c68cf3d0c89a4100e5c3704d63149407ea253.exe
1236	f6ad4da75d8e9e6438479894e84c68cf3d0c89a4100e5c3704d63149407ea253.exe
1236	f6ad4da75d8e9e6438479894e84c68cf3d0c89a4100e5c3704d63149407ea253.exe
1236	f6ad4da75d8e9e6438479894e84c68cf3d0c89a4100e5c3704d63149407ea253.exe
1236	f6ad4da75d8e9e6438479894e84c68cf3d0c89a4100e5c3704d63149407ea253.exe
2948	sbietrcl.exe
2948	sbietrcl.exe
2948	sbietrcl.exe
2948	sbietrcl.exe
2948	sbietrcl.exe
2948	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1236	f6ad4da75d8e9e6438479894e84c68cf3d0c89a4100e5c3704d63149407ea253.exe
Token: SeDebugPrivilege	2948	sbietrcl.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2888	sbietrcl.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 1236 wrote to memory of 2948	1236	f6ad4da75d8e9e6438479894e84c68cf3d0c89a4100e5c3704d63149407ea253.exe	30
PID 1236 wrote to memory of 2948	1236	f6ad4da75d8e9e6438479894e84c68cf3d0c89a4100e5c3704d63149407ea253.exe	30
PID 1236 wrote to memory of 2948	1236	f6ad4da75d8e9e6438479894e84c68cf3d0c89a4100e5c3704d63149407ea253.exe	30
PID 1236 wrote to memory of 2948	1236	f6ad4da75d8e9e6438479894e84c68cf3d0c89a4100e5c3704d63149407ea253.exe	30
PID 2948 wrote to memory of 2888	2948	sbietrcl.exe	31
PID 2948 wrote to memory of 2888	2948	sbietrcl.exe	31
PID 2948 wrote to memory of 2888	2948	sbietrcl.exe	31
PID 2948 wrote to memory of 2888	2948	sbietrcl.exe	31
PID 2948 wrote to memory of 2888	2948	sbietrcl.exe	31
PID 2948 wrote to memory of 2888	2948	sbietrcl.exe	31
PID 2948 wrote to memory of 2888	2948	sbietrcl.exe	31
PID 2948 wrote to memory of 2888	2948	sbietrcl.exe	31
PID 2948 wrote to memory of 2888	2948	sbietrcl.exe	31
PID 2948 wrote to memory of 2888	2948	sbietrcl.exe	31

C:\Users\Admin\AppData\Local\Temp\f6ad4da75d8e9e6438479894e84c68cf3d0c89a4100e5c3704d63149407ea253.exe
"C:\Users\Admin\AppData\Local\Temp\f6ad4da75d8e9e6438479894e84c68cf3d0c89a4100e5c3704d63149407ea253.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1236
- 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:2948
- - 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:2888

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

System Information Discovery

1

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\Temp\Cab982.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

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

Filesize
1.9MB

MD5
3369b6bc3aacf15ba3617a87b2067fe3

SHA1
92fc6637fdc9854b4ac5fce00c7eb319d4ebefc1

SHA256
06e6658895f95ac282c0fc6dddb8431d7fdbd68c26837c3c1c02e56bf2758165

SHA512
bc628ac2941cbf32feb04292b67c690f7fc7d06f7bad2dcb83db74428ddd7660744cb6017283120f08f361c60edb02ec87d970c53285dfca22ddee15bea14847

Download Submit
memory/1236-1-0x00000000744E0000-0x0000000074A8B000-memory.dmp

Filesize
5.7MB

Download
memory/1236-2-0x00000000744E0000-0x0000000074A8B000-memory.dmp

Filesize
5.7MB

Download
memory/1236-10-0x00000000744E0000-0x0000000074A8B000-memory.dmp

Filesize
5.7MB

Download
memory/1236-11-0x00000000744E0000-0x0000000074A8B000-memory.dmp

Filesize
5.7MB

Download
memory/1236-23-0x00000000744E0000-0x0000000074A8B000-memory.dmp

Filesize
5.7MB

Download
memory/1236-24-0x00000000744E0000-0x0000000074A8B000-memory.dmp

Filesize
5.7MB

Download
memory/1236-31-0x00000000744E0000-0x0000000074A8B000-memory.dmp

Filesize
5.7MB

Download
memory/1236-0-0x00000000744E1000-0x00000000744E2000-memory.dmp

Filesize
4KB

Download
memory/2888-46-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2888-47-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2888-63-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2888-60-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2888-59-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2888-45-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2888-44-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2888-50-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2888-48-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2888-54-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2888-43-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2888-55-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2888-56-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2948-33-0x00000000744E0000-0x0000000074A8B000-memory.dmp

Filesize
5.7MB

Download
memory/2948-53-0x00000000744E0000-0x0000000074A8B000-memory.dmp

Filesize
5.7MB

Download
memory/2948-32-0x00000000744E0000-0x0000000074A8B000-memory.dmp

Filesize
5.7MB

Download
memory/2948-42-0x00000000744E0000-0x0000000074A8B000-memory.dmp

Filesize
5.7MB

Download
memory/2948-41-0x00000000744E0000-0x0000000074A8B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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