remcos | 1f2244ccbe6c3cde3824c8b801a300393bebd9c9aa1c4538be0b67a5e761f075

General

Target

P04562345.bat.exe
Size

1.1MB
MD5

d29616351ef9a129027188527865b943
SHA1

29b47295801378189b842715da51f31c12a3331b
SHA256

1f2244ccbe6c3cde3824c8b801a300393bebd9c9aa1c4538be0b67a5e761f075
SHA512

cd05a6d085a7623b3e5e26b6e5f333709811d57554341708e1d71f92f9b6811ca5e91e948296f09017283475377c7aceb8e41f09a355dddf74e6ccbf4b58c024
SSDEEP

24576:VeYzaZsWKMgptI3AeFGuD+x5ou+qxzc0xh276F6+E9:MZDYptCAef17A2O09

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

127.0.0.1:3000

154.216.17.185:6902

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-L2X7AM
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
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 1 IoCs

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

execution

PowerShell

T1059.001

pid	Process
2740	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2708 set thread context of 2624	2708	P04562345.bat.exe	32

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	P04562345.bat.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	P04562345.bat.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2740	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2740	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2624	P04562345.bat.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 2708 wrote to memory of 2740	2708	P04562345.bat.exe	30
PID 2708 wrote to memory of 2740	2708	P04562345.bat.exe	30
PID 2708 wrote to memory of 2740	2708	P04562345.bat.exe	30
PID 2708 wrote to memory of 2740	2708	P04562345.bat.exe	30
PID 2708 wrote to memory of 2624	2708	P04562345.bat.exe	32
PID 2708 wrote to memory of 2624	2708	P04562345.bat.exe	32
PID 2708 wrote to memory of 2624	2708	P04562345.bat.exe	32
PID 2708 wrote to memory of 2624	2708	P04562345.bat.exe	32
PID 2708 wrote to memory of 2624	2708	P04562345.bat.exe	32
PID 2708 wrote to memory of 2624	2708	P04562345.bat.exe	32
PID 2708 wrote to memory of 2624	2708	P04562345.bat.exe	32
PID 2708 wrote to memory of 2624	2708	P04562345.bat.exe	32
PID 2708 wrote to memory of 2624	2708	P04562345.bat.exe	32
PID 2708 wrote to memory of 2624	2708	P04562345.bat.exe	32
PID 2708 wrote to memory of 2624	2708	P04562345.bat.exe	32
PID 2708 wrote to memory of 2624	2708	P04562345.bat.exe	32
PID 2708 wrote to memory of 2624	2708	P04562345.bat.exe	32

C:\Users\Admin\AppData\Local\Temp\P04562345.bat.exe
"C:\Users\Admin\AppData\Local\Temp\P04562345.bat.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2708
- 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\P04562345.bat.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2740
- C:\Users\Admin\AppData\Local\Temp\P04562345.bat.exe
  "C:\Users\Admin\AppData\Local\Temp\P04562345.bat.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:2624

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

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

Replay Monitor

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Downloads

C:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
c45849c5f3e455f82af88f442f222cad

SHA1
cbd5616b8bf15907cffbae22ffc5d9a2330c2f3b

SHA256
42dd1d74c92aba83553bc3cc73716d353dbe1bef19a59eff5af4e7c5a7f07092

SHA512
affbad265a63fe82ed1baa64dc6bfd0452af831b6fe488dd7246319d7a56493c507d8a6560e650f4186db2076ff38a7bb5e3e94678afe1dc090201968ad4a61f

Download Submit
memory/2624-14-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2624-15-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2624-65-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2624-64-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2624-13-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2624-57-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2624-8-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2624-12-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2624-24-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2624-11-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2624-56-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2624-21-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2624-20-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2624-18-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2624-16-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2624-49-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2624-48-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2624-41-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2624-25-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2624-9-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2624-7-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2624-29-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2624-31-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2624-32-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2624-33-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2624-40-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2708-2-0x0000000074C50000-0x000000007533E000-memory.dmp

Filesize
6.9MB

Download
memory/2708-1-0x0000000001210000-0x0000000001320000-memory.dmp

Filesize
1.1MB

Download
memory/2708-5-0x0000000074C50000-0x000000007533E000-memory.dmp

Filesize
6.9MB

Download
memory/2708-0-0x0000000074C5E000-0x0000000074C5F000-memory.dmp

Filesize
4KB

Download
memory/2708-26-0x0000000074C50000-0x000000007533E000-memory.dmp

Filesize
6.9MB

Download
memory/2708-6-0x00000000049C0000-0x0000000004A80000-memory.dmp

Filesize
768KB

Download
memory/2708-4-0x0000000074C5E000-0x0000000074C5F000-memory.dmp

Filesize
4KB

Download
memory/2708-3-0x0000000000510000-0x0000000000528000-memory.dmp

Filesize
96KB

Download

Analysis

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