remcos | a9d403efd3d1d5740a5b1d8a0d691422b4cede106265437f533523f2d7bac16e

General

Target

AWB 411744484099.exe
Size

848KB
MD5

ae75577913968ec41742093de9a8f00d
SHA1

21cf02ec5fa8d8f4bc97803e02c3e638d51b69bd
SHA256

a9d403efd3d1d5740a5b1d8a0d691422b4cede106265437f533523f2d7bac16e
SHA512

7288f50eabdde4c2561d2c477dcc09416cb6ad40d05d8ec93c7695f0dfa558549228d892c8a7b36e30efb42435017c30c1e7511b6e1112e9ee523c51580d7673
SSDEEP

24576:pnus9xWJ4JKWk4hSKP57dJNHwHXgKp2+zA:pnusSJEFtZdJNoXgizA

Score

10^/10

remcos 3456789 discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

3456789

C2

172.93.220.148:45682

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
765-8M14I5
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

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
2680	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2156 set thread context of 2824	2156	AWB 411744484099.exe	34

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	AWB 411744484099.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AWB 411744484099.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
2828	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2680	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2680	powershell.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2156 wrote to memory of 2680	2156	AWB 411744484099.exe	30
PID 2156 wrote to memory of 2680	2156	AWB 411744484099.exe	30
PID 2156 wrote to memory of 2680	2156	AWB 411744484099.exe	30
PID 2156 wrote to memory of 2680	2156	AWB 411744484099.exe	30
PID 2156 wrote to memory of 2828	2156	AWB 411744484099.exe	32
PID 2156 wrote to memory of 2828	2156	AWB 411744484099.exe	32
PID 2156 wrote to memory of 2828	2156	AWB 411744484099.exe	32
PID 2156 wrote to memory of 2828	2156	AWB 411744484099.exe	32
PID 2156 wrote to memory of 2824	2156	AWB 411744484099.exe	34
PID 2156 wrote to memory of 2824	2156	AWB 411744484099.exe	34
PID 2156 wrote to memory of 2824	2156	AWB 411744484099.exe	34
PID 2156 wrote to memory of 2824	2156	AWB 411744484099.exe	34
PID 2156 wrote to memory of 2824	2156	AWB 411744484099.exe	34
PID 2156 wrote to memory of 2824	2156	AWB 411744484099.exe	34
PID 2156 wrote to memory of 2824	2156	AWB 411744484099.exe	34
PID 2156 wrote to memory of 2824	2156	AWB 411744484099.exe	34
PID 2156 wrote to memory of 2824	2156	AWB 411744484099.exe	34
PID 2156 wrote to memory of 2824	2156	AWB 411744484099.exe	34
PID 2156 wrote to memory of 2824	2156	AWB 411744484099.exe	34
PID 2156 wrote to memory of 2824	2156	AWB 411744484099.exe	34
PID 2156 wrote to memory of 2824	2156	AWB 411744484099.exe	34

C:\Users\Admin\AppData\Local\Temp\AWB 411744484099.exe
"C:\Users\Admin\AppData\Local\Temp\AWB 411744484099.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2156
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\GiyNXejQVN.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2680
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\GiyNXejQVN" /XML "C:\Users\Admin\AppData\Local\Temp\tmp511C.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2828
- C:\Users\Admin\AppData\Local\Temp\AWB 411744484099.exe
  "C:\Users\Admin\AppData\Local\Temp\AWB 411744484099.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2824

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmp511C.tmp

Filesize
1KB

MD5
16a0937db38626ad87c079dea6be908f

SHA1
0b834ef07134fbc5dc860168743999d031fddc48

SHA256
a180c6afaf3bce60d6045ddb4e12c847384878ebc401c743bc30bb929a541fdd

SHA512
394396a91a6db05f0a0757efc4bebccc34218a76f4aa89fab03b615fb9e649ba185c82cad3064993c5cfb2938334608fda2722f0e1a5a490a8bf9eb6951cdb06

Download Submit
memory/2156-33-0x0000000074140000-0x000000007482E000-memory.dmp

Filesize
6.9MB

Download
memory/2156-1-0x0000000000990000-0x0000000000A6A000-memory.dmp

Filesize
872KB

Download
memory/2156-2-0x0000000074140000-0x000000007482E000-memory.dmp

Filesize
6.9MB

Download
memory/2156-3-0x0000000000290000-0x000000000029E000-memory.dmp

Filesize
56KB

Download
memory/2156-4-0x000000007414E000-0x000000007414F000-memory.dmp

Filesize
4KB

Download
memory/2156-5-0x0000000074140000-0x000000007482E000-memory.dmp

Filesize
6.9MB

Download
memory/2156-6-0x0000000005340000-0x00000000053FE000-memory.dmp

Filesize
760KB

Download
memory/2156-0-0x000000007414E000-0x000000007414F000-memory.dmp

Filesize
4KB

Download
memory/2824-24-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-36-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-32-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-31-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-30-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-28-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2824-26-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-12-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-22-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-18-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-16-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-20-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-14-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-29-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-37-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-38-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-40-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-41-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-42-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-44-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-43-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-45-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-46-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-48-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2824-47-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads