remcos | 93b68cbc8c600420b74e900c619dff226cacc382ab4daf5cd63142cd5d28f7cb

General

Target

93b68cbc8c600420b74e900c619dff226cacc382ab4daf5cd63142cd5d28f7cb.exe
Size

1.1MB
MD5

3f766e54beacede430e771392a6083e0
SHA1

4b90821c7fea37d6f321165a7335abec518c12b9
SHA256

93b68cbc8c600420b74e900c619dff226cacc382ab4daf5cd63142cd5d28f7cb
SHA512

1310db5e715c73ade14eeb4e30bef8425a2634072fa87c3509adbd24b92b3a0bb9347a6457940a77883b0eff842821f70ccf8a6e59a7c231d9cf2f24c69fd21d
SSDEEP

24576:eaTgKwZ14X27uUL3VM0kd+rkhfMsjgkAj2JE06J5N0Fs:LTgdZOcuUL3xAx/8b2S7Z0q

Score

10^/10

remcos chinemerem discovery rat

Malware Config

Extracted

Family

remcos

Version

2.2.2 Pro

Botnet

chinemerem

C2

remcoss.onmypc.org:3765

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
logs.dat
keylog_flag
false
keylog_folder
remcos
keylog_path
%AppData%
mouse_option
false
mutex
r-8ET8H0
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
Remcos family
remcos

Checks computer location settings 2 TTPs 2 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-1-5-21-3218366390-1258052702-4267193707-1000\Control Panel\International\Geo\Nation	93b68cbc8c600420b74e900c619dff226cacc382ab4daf5cd63142cd5d28f7cb.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3218366390-1258052702-4267193707-1000\Control Panel\International\Geo\Nation	AboutSettingsHandlers.exe

Executes dropped EXE 2 IoCs

pid	Process
1316	AboutSettingsHandlers.exe
4460	AboutSettingsHandlers.exe

AutoIT Executable 6 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/memory/4012-16-0x0000000000E00000-0x0000000000F89000-memory.dmp	autoit_exe
behavioral2/memory/4012-19-0x0000000000E00000-0x0000000000F89000-memory.dmp	autoit_exe
behavioral2/memory/4012-21-0x0000000000E00000-0x0000000000F89000-memory.dmp	autoit_exe
behavioral2/memory/1316-37-0x0000000000E20000-0x0000000000FA9000-memory.dmp	autoit_exe
behavioral2/memory/1316-39-0x0000000000E20000-0x0000000000FA9000-memory.dmp	autoit_exe
behavioral2/memory/1316-40-0x0000000000E20000-0x0000000000FA9000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4012 set thread context of 836	4012	93b68cbc8c600420b74e900c619dff226cacc382ab4daf5cd63142cd5d28f7cb.exe	92
PID 1316 set thread context of 4460	1316	AboutSettingsHandlers.exe	104

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	93b68cbc8c600420b74e900c619dff226cacc382ab4daf5cd63142cd5d28f7cb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	93b68cbc8c600420b74e900c619dff226cacc382ab4daf5cd63142cd5d28f7cb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AboutSettingsHandlers.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
4188	schtasks.exe
1860	schtasks.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
836	93b68cbc8c600420b74e900c619dff226cacc382ab4daf5cd63142cd5d28f7cb.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 4012 wrote to memory of 836	4012	93b68cbc8c600420b74e900c619dff226cacc382ab4daf5cd63142cd5d28f7cb.exe	92
PID 4012 wrote to memory of 836	4012	93b68cbc8c600420b74e900c619dff226cacc382ab4daf5cd63142cd5d28f7cb.exe	92
PID 4012 wrote to memory of 836	4012	93b68cbc8c600420b74e900c619dff226cacc382ab4daf5cd63142cd5d28f7cb.exe	92
PID 4012 wrote to memory of 836	4012	93b68cbc8c600420b74e900c619dff226cacc382ab4daf5cd63142cd5d28f7cb.exe	92
PID 4012 wrote to memory of 836	4012	93b68cbc8c600420b74e900c619dff226cacc382ab4daf5cd63142cd5d28f7cb.exe	92
PID 4012 wrote to memory of 1860	4012	93b68cbc8c600420b74e900c619dff226cacc382ab4daf5cd63142cd5d28f7cb.exe	98
PID 4012 wrote to memory of 1860	4012	93b68cbc8c600420b74e900c619dff226cacc382ab4daf5cd63142cd5d28f7cb.exe	98
PID 4012 wrote to memory of 1860	4012	93b68cbc8c600420b74e900c619dff226cacc382ab4daf5cd63142cd5d28f7cb.exe	98
PID 1316 wrote to memory of 4460	1316	AboutSettingsHandlers.exe	104
PID 1316 wrote to memory of 4460	1316	AboutSettingsHandlers.exe	104
PID 1316 wrote to memory of 4460	1316	AboutSettingsHandlers.exe	104
PID 1316 wrote to memory of 4460	1316	AboutSettingsHandlers.exe	104
PID 1316 wrote to memory of 4460	1316	AboutSettingsHandlers.exe	104
PID 1316 wrote to memory of 4188	1316	AboutSettingsHandlers.exe	110
PID 1316 wrote to memory of 4188	1316	AboutSettingsHandlers.exe	110
PID 1316 wrote to memory of 4188	1316	AboutSettingsHandlers.exe	110

C:\Users\Admin\AppData\Local\Temp\93b68cbc8c600420b74e900c619dff226cacc382ab4daf5cd63142cd5d28f7cb.exe
"C:\Users\Admin\AppData\Local\Temp\93b68cbc8c600420b74e900c619dff226cacc382ab4daf5cd63142cd5d28f7cb.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4012
- C:\Users\Admin\AppData\Local\Temp\93b68cbc8c600420b74e900c619dff226cacc382ab4daf5cd63142cd5d28f7cb.exe
  "C:\Users\Admin\AppData\Local\Temp\93b68cbc8c600420b74e900c619dff226cacc382ab4daf5cd63142cd5d28f7cb.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:836
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\SysWOW64\schtasks.exe" /create /tn SystemSettingsAdminFlows /tr "C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe" /sc minute /mo 1 /F
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1860

C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe
C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe
1⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1316
- C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe
  "C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe"
  2⤵
  - Executes dropped EXE
  PID:4460
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\SysWOW64\schtasks.exe" /create /tn SystemSettingsAdminFlows /tr "C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe" /sc minute /mo 1 /F
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:4188

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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

Query Registry

1

T1012

System Information Discovery

2

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\Roaming\UIMgrBroker\AboutSettingsHandlers.exe

Filesize
1.1MB

MD5
e737f5bbf579bf9f9dc124fbd141899e

SHA1
af39bc24911f7d8a8b9e4b604091c4a1d0f54552

SHA256
06e5ed32e5ed89812acdd9f9df6ea2e6f51913e41379d94fb19310b75b1509eb

SHA512
fb96d1363df624483e3de5666075ba58abfd9f6514c9c5f2844db3113d9030f2e7eed941cf44e9a0e86dcd785286c603f241e14c93153147969082689536a41b

Download Submit
C:\Users\Admin\AppData\Roaming\remcos\logs.dat

Filesize
79B

MD5
e83a373854af9610473c806e0786c29e

SHA1
e6f3446e7ed3b178efab222e3b4a47c4a38db22e

SHA256
2d5ebea117a5d6c83bd9171e1f62a21a5cc4c36d84a5ad19248caa76b3d9c0b3

SHA512
5f280a3d3fa0758a4ab030c2eb704bebd6e04c02581297987b91437a6154cf9090e5e7964cb3d66943de3c4b8b2a8f33c9e9c948d2b82ddfdbc388c64400084a

Download Submit
memory/836-4-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/836-10-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/836-11-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/836-14-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/1316-24-0x0000000000E20000-0x0000000000FA9000-memory.dmp

Filesize
1.5MB

Download
memory/1316-40-0x0000000000E20000-0x0000000000FA9000-memory.dmp

Filesize
1.5MB

Download
memory/1316-39-0x0000000000E20000-0x0000000000FA9000-memory.dmp

Filesize
1.5MB

Download
memory/1316-37-0x0000000000E20000-0x0000000000FA9000-memory.dmp

Filesize
1.5MB

Download
memory/1316-36-0x00000000010C0000-0x00000000010C3000-memory.dmp

Filesize
12KB

Download
memory/1316-26-0x00000000010C0000-0x00000000010C3000-memory.dmp

Filesize
12KB

Download
memory/4012-21-0x0000000000E00000-0x0000000000F89000-memory.dmp

Filesize
1.5MB

Download
memory/4012-0-0x0000000000E00000-0x0000000000F89000-memory.dmp

Filesize
1.5MB

Download
memory/4012-19-0x0000000000E00000-0x0000000000F89000-memory.dmp

Filesize
1.5MB

Download
memory/4012-16-0x0000000000E00000-0x0000000000F89000-memory.dmp

Filesize
1.5MB

Download
memory/4012-15-0x0000000000CA0000-0x0000000000CA3000-memory.dmp

Filesize
12KB

Download
memory/4012-2-0x0000000000DD0000-0x0000000000DD1000-memory.dmp

Filesize
4KB

Download
memory/4012-1-0x0000000000CA0000-0x0000000000CA3000-memory.dmp

Filesize
12KB

Download
memory/4460-27-0x0000000000370000-0x0000000000390000-memory.dmp

Filesize
128KB

Download
memory/4460-34-0x0000000000370000-0x0000000000390000-memory.dmp

Filesize
128KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads