remcos | 5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd

General

Target

5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe
Size

913KB
MD5

5a1a4200ce20d69530ca2b5ea575ef4a
SHA1

00e5d156420606a6ee6da8b37f11f5a561376146
SHA256

5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd
SHA512

7f46f8ab217230a031cfdd377833dfd416d2a64be9ebfd289faba9bbabb77347697d3404faaa72e01e262f6d25277a87ca18f64fe2e7240aa883684f150d82db
SSDEEP

24576:rRAaN6zclYJQqEllY8ZE0TdGuHSbSnsUQKnBgfzoP:rRXscmJXV0tsInB4

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

192.3.243.155:7643

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-C9YEJ8
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 2 IoCs

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

execution

PowerShell

T1059.001

pid	Process
2900	powershell.exe
264	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2500 set thread context of 2812	2500	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	37

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	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
2740	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
264	powershell.exe
2900	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	264	powershell.exe
Token: SeDebugPrivilege	2900	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2812	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 2500 wrote to memory of 2900	2500	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	31
PID 2500 wrote to memory of 2900	2500	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	31
PID 2500 wrote to memory of 2900	2500	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	31
PID 2500 wrote to memory of 2900	2500	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	31
PID 2500 wrote to memory of 264	2500	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	33
PID 2500 wrote to memory of 264	2500	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	33
PID 2500 wrote to memory of 264	2500	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	33
PID 2500 wrote to memory of 264	2500	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	33
PID 2500 wrote to memory of 2740	2500	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	34
PID 2500 wrote to memory of 2740	2500	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	34
PID 2500 wrote to memory of 2740	2500	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	34
PID 2500 wrote to memory of 2740	2500	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	34
PID 2500 wrote to memory of 2812	2500	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	37
PID 2500 wrote to memory of 2812	2500	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	37
PID 2500 wrote to memory of 2812	2500	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	37
PID 2500 wrote to memory of 2812	2500	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	37
PID 2500 wrote to memory of 2812	2500	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	37
PID 2500 wrote to memory of 2812	2500	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	37
PID 2500 wrote to memory of 2812	2500	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	37
PID 2500 wrote to memory of 2812	2500	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	37
PID 2500 wrote to memory of 2812	2500	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	37
PID 2500 wrote to memory of 2812	2500	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	37
PID 2500 wrote to memory of 2812	2500	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	37
PID 2500 wrote to memory of 2812	2500	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	37
PID 2500 wrote to memory of 2812	2500	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	37

C:\Users\Admin\AppData\Local\Temp\5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe
"C:\Users\Admin\AppData\Local\Temp\5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2500
- 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\5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2900
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\OzYxABbJ.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:264
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\OzYxABbJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp11A.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2740
- C:\Users\Admin\AppData\Local\Temp\5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe
  "C:\Users\Admin\AppData\Local\Temp\5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:2812

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

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

System Information Discovery

1

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:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
d76335140270d2e367f7b19609d86360

SHA1
6e5a15f790ae48640eefff6bef5b85f80310a85a

SHA256
d6318420a58372a58d1bae306118ab66bdc37897bd757481d0cb04907b7123cb

SHA512
65e04401138b41963ef7691875b86d2e6b615b3cb8feb9469054939acdeae565911cc5c459cbc1520946dc2446654cc620033d62ee995a31a20ff45e04d8fbd8

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp11A.tmp

Filesize
1KB

MD5
8b416adf6860a8e709a8170375e4c300

SHA1
09debdbf7c4e2ae875996c454292a449be1e1e18

SHA256
eb17ce8277076e3404111fb225c8410858b261e34d706a32ba000118e7e22616

SHA512
73f00f544a3e61f0b00d90ef52244e2b977f42cb66cf3816b62011f47e9db3ec9b9faf6bfc30ed62a340ce0f761de5e027ef26c46e8b05fd5562e1da3e862c20

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

Filesize
7KB

MD5
7d53a06f28b16856406ea2b2c856dd03

SHA1
7c1568dc9dded408060d8e26ea6da91895a62117

SHA256
9dd6889e372a0b5a21402d491ef0421b48661dcd0a7b613ced486d8ae57f6e69

SHA512
4f97fbd4734535761f00b4ba8e92d6828fafafafbac2aba7e05d2214a3ed1c294df97a2c11c27b0ee38813408ea0da349564ee6949e2e8a1c466164efa123d4b

Download Submit
memory/2500-0-0x0000000074D3E000-0x0000000074D3F000-memory.dmp

Filesize
4KB

Download
memory/2500-1-0x00000000008C0000-0x00000000009AA000-memory.dmp

Filesize
936KB

Download
memory/2500-2-0x0000000074D30000-0x000000007541E000-memory.dmp

Filesize
6.9MB

Download
memory/2500-3-0x00000000004D0000-0x00000000004E8000-memory.dmp

Filesize
96KB

Download
memory/2500-4-0x0000000074D3E000-0x0000000074D3F000-memory.dmp

Filesize
4KB

Download
memory/2500-5-0x0000000074D30000-0x000000007541E000-memory.dmp

Filesize
6.9MB

Download
memory/2500-6-0x0000000005B00000-0x0000000005BC0000-memory.dmp

Filesize
768KB

Download
memory/2500-43-0x0000000074D30000-0x000000007541E000-memory.dmp

Filesize
6.9MB

Download
memory/2812-37-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2812-45-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2812-31-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2812-36-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2812-29-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2812-38-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2812-41-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2812-33-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2812-27-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2812-25-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2812-22-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2812-42-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2812-23-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2812-35-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2812-44-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2812-46-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2812-49-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2812-19-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2812-57-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2812-58-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2812-65-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2812-66-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2812-73-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2812-74-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2812-81-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2812-82-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads