remcos | 9bab6645fcdf0b227951503269cc6606b28ce3da83e7fabdcece821d40b8d089

General

Target

quote list.exe
Size

869KB
MD5

d015c17dca0c59e602fe84a228e39a22
SHA1

2e8bdba65c967be5f8be70e30518ead644be0977
SHA256

915b501be529cba600bb05585f9206277972284e1bdac44094d256fd01b9da46
SHA512

293b625d8072249e08036876487a43efe80896d72c759bd0d2e2a40cdf44683a7afaa5ed0c16289fde67dd89e334cad9c772c44e1078909b41b4b09cdb56c6cd
SSDEEP

12288:ynKzK2l5btpicIKvL9JYNqt63GBJe0q3Ax7j3HiC6TpOIBl5c39WFac+brKQajeL:yKuQPIS9JYE63ienG7jTI929WiKaL

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
2788	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2104 set thread context of 1572	2104	quote list.exe	33

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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	quote list.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	quote list.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.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
2736	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2788	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2788	powershell.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2104 wrote to memory of 2788	2104	quote list.exe	29
PID 2104 wrote to memory of 2788	2104	quote list.exe	29
PID 2104 wrote to memory of 2788	2104	quote list.exe	29
PID 2104 wrote to memory of 2788	2104	quote list.exe	29
PID 2104 wrote to memory of 2736	2104	quote list.exe	30
PID 2104 wrote to memory of 2736	2104	quote list.exe	30
PID 2104 wrote to memory of 2736	2104	quote list.exe	30
PID 2104 wrote to memory of 2736	2104	quote list.exe	30
PID 2104 wrote to memory of 1572	2104	quote list.exe	33
PID 2104 wrote to memory of 1572	2104	quote list.exe	33
PID 2104 wrote to memory of 1572	2104	quote list.exe	33
PID 2104 wrote to memory of 1572	2104	quote list.exe	33
PID 2104 wrote to memory of 1572	2104	quote list.exe	33
PID 2104 wrote to memory of 1572	2104	quote list.exe	33
PID 2104 wrote to memory of 1572	2104	quote list.exe	33
PID 2104 wrote to memory of 1572	2104	quote list.exe	33
PID 2104 wrote to memory of 1572	2104	quote list.exe	33
PID 2104 wrote to memory of 1572	2104	quote list.exe	33
PID 2104 wrote to memory of 1572	2104	quote list.exe	33
PID 2104 wrote to memory of 1572	2104	quote list.exe	33
PID 2104 wrote to memory of 1572	2104	quote list.exe	33

C:\Users\Admin\AppData\Local\Temp\quote list.exe
"C:\Users\Admin\AppData\Local\Temp\quote list.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2104
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\RPwgSSbfZvt.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2788
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\RPwgSSbfZvt" /XML "C:\Users\Admin\AppData\Local\Temp\tmp52C2.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2736
- C:\Users\Admin\AppData\Local\Temp\quote list.exe
  "C:\Users\Admin\AppData\Local\Temp\quote list.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1572

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:\Users\Admin\AppData\Local\Temp\tmp52C2.tmp

Filesize
1KB

MD5
584a378c5f578964ef758eb58cd813cf

SHA1
67a65982e65a0edebad5742cb2e15c159d333842

SHA256
9a7c818ca3b38b6ba7ff064aa5562425a766d3cfbc72e9a25dd6a47ffbbf37a2

SHA512
4054b6f6d704ce2e21c79a86d4c5dbbd2c84e946ba230ba01ae402240fa83b2664840b7cbcb15ab64f4fb22d8ef29e2a69f3ef239f3ab58dac516c7df0615b6a

Download Submit
memory/1572-24-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1572-41-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1572-48-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1572-20-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1572-47-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1572-46-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1572-45-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1572-18-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1572-29-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1572-44-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1572-32-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1572-30-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1572-28-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1572-16-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1572-33-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1572-43-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1572-42-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1572-22-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1572-26-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1572-14-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1572-12-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1572-36-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1572-37-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1572-38-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1572-40-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2104-2-0x0000000074010000-0x00000000746FE000-memory.dmp

Filesize
6.9MB

Download
memory/2104-4-0x000000007401E000-0x000000007401F000-memory.dmp

Filesize
4KB

Download
memory/2104-0-0x000000007401E000-0x000000007401F000-memory.dmp

Filesize
4KB

Download
memory/2104-31-0x0000000074010000-0x00000000746FE000-memory.dmp

Filesize
6.9MB

Download
memory/2104-1-0x0000000000CB0000-0x0000000000D90000-memory.dmp

Filesize
896KB

Download
memory/2104-6-0x0000000005290000-0x000000000534E000-memory.dmp

Filesize
760KB

Download
memory/2104-5-0x0000000074010000-0x00000000746FE000-memory.dmp

Filesize
6.9MB

Download
memory/2104-3-0x00000000003B0000-0x00000000003C0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads