remcos | cb2b849e4d24527ba41c0e5ae3982ecde5bd91b94b5ae8bb27dc221b4c775891

General

Target

cb2b849e4d24527ba41c0e5ae3982ecde5bd91b94b5ae8bb27dc221b4c775891.exe
Size

863KB
MD5

17c6fe265edc0770cfdc81cd7b5645bc
SHA1

761409d5a10480a4fd897e37aa098ec333e96ab2
SHA256

cb2b849e4d24527ba41c0e5ae3982ecde5bd91b94b5ae8bb27dc221b4c775891
SHA512

6048186df40e5e653b051c8fa0071411a56ff48722340f95cfc84cfc4affda7ca6a75c65421795439433e5f566ed3469f160f2f2e156953a22b5f23ae13ced60
SSDEEP

24576:OLOmAJ1+95ZiMtkqM1pMky9raoPtXCuHYvN:OqmY1+95S1KkSrrRrHIN

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
2728	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1448 set thread context of 2444	1448	cb2b849e4d24527ba41c0e5ae3982ecde5bd91b94b5ae8bb27dc221b4c775891.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	cb2b849e4d24527ba41c0e5ae3982ecde5bd91b94b5ae8bb27dc221b4c775891.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	cb2b849e4d24527ba41c0e5ae3982ecde5bd91b94b5ae8bb27dc221b4c775891.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
840	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2728	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2728	powershell.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 1448 wrote to memory of 2728	1448	cb2b849e4d24527ba41c0e5ae3982ecde5bd91b94b5ae8bb27dc221b4c775891.exe	30
PID 1448 wrote to memory of 2728	1448	cb2b849e4d24527ba41c0e5ae3982ecde5bd91b94b5ae8bb27dc221b4c775891.exe	30
PID 1448 wrote to memory of 2728	1448	cb2b849e4d24527ba41c0e5ae3982ecde5bd91b94b5ae8bb27dc221b4c775891.exe	30
PID 1448 wrote to memory of 2728	1448	cb2b849e4d24527ba41c0e5ae3982ecde5bd91b94b5ae8bb27dc221b4c775891.exe	30
PID 1448 wrote to memory of 840	1448	cb2b849e4d24527ba41c0e5ae3982ecde5bd91b94b5ae8bb27dc221b4c775891.exe	31
PID 1448 wrote to memory of 840	1448	cb2b849e4d24527ba41c0e5ae3982ecde5bd91b94b5ae8bb27dc221b4c775891.exe	31
PID 1448 wrote to memory of 840	1448	cb2b849e4d24527ba41c0e5ae3982ecde5bd91b94b5ae8bb27dc221b4c775891.exe	31
PID 1448 wrote to memory of 840	1448	cb2b849e4d24527ba41c0e5ae3982ecde5bd91b94b5ae8bb27dc221b4c775891.exe	31
PID 1448 wrote to memory of 2444	1448	cb2b849e4d24527ba41c0e5ae3982ecde5bd91b94b5ae8bb27dc221b4c775891.exe	34
PID 1448 wrote to memory of 2444	1448	cb2b849e4d24527ba41c0e5ae3982ecde5bd91b94b5ae8bb27dc221b4c775891.exe	34
PID 1448 wrote to memory of 2444	1448	cb2b849e4d24527ba41c0e5ae3982ecde5bd91b94b5ae8bb27dc221b4c775891.exe	34
PID 1448 wrote to memory of 2444	1448	cb2b849e4d24527ba41c0e5ae3982ecde5bd91b94b5ae8bb27dc221b4c775891.exe	34
PID 1448 wrote to memory of 2444	1448	cb2b849e4d24527ba41c0e5ae3982ecde5bd91b94b5ae8bb27dc221b4c775891.exe	34
PID 1448 wrote to memory of 2444	1448	cb2b849e4d24527ba41c0e5ae3982ecde5bd91b94b5ae8bb27dc221b4c775891.exe	34
PID 1448 wrote to memory of 2444	1448	cb2b849e4d24527ba41c0e5ae3982ecde5bd91b94b5ae8bb27dc221b4c775891.exe	34
PID 1448 wrote to memory of 2444	1448	cb2b849e4d24527ba41c0e5ae3982ecde5bd91b94b5ae8bb27dc221b4c775891.exe	34
PID 1448 wrote to memory of 2444	1448	cb2b849e4d24527ba41c0e5ae3982ecde5bd91b94b5ae8bb27dc221b4c775891.exe	34
PID 1448 wrote to memory of 2444	1448	cb2b849e4d24527ba41c0e5ae3982ecde5bd91b94b5ae8bb27dc221b4c775891.exe	34
PID 1448 wrote to memory of 2444	1448	cb2b849e4d24527ba41c0e5ae3982ecde5bd91b94b5ae8bb27dc221b4c775891.exe	34
PID 1448 wrote to memory of 2444	1448	cb2b849e4d24527ba41c0e5ae3982ecde5bd91b94b5ae8bb27dc221b4c775891.exe	34
PID 1448 wrote to memory of 2444	1448	cb2b849e4d24527ba41c0e5ae3982ecde5bd91b94b5ae8bb27dc221b4c775891.exe	34

C:\Users\Admin\AppData\Local\Temp\cb2b849e4d24527ba41c0e5ae3982ecde5bd91b94b5ae8bb27dc221b4c775891.exe
"C:\Users\Admin\AppData\Local\Temp\cb2b849e4d24527ba41c0e5ae3982ecde5bd91b94b5ae8bb27dc221b4c775891.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1448
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\bUwNWDK.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2728
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\bUwNWDK" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3D2F.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:840
- C:\Users\Admin\AppData\Local\Temp\cb2b849e4d24527ba41c0e5ae3982ecde5bd91b94b5ae8bb27dc221b4c775891.exe
  "C:\Users\Admin\AppData\Local\Temp\cb2b849e4d24527ba41c0e5ae3982ecde5bd91b94b5ae8bb27dc221b4c775891.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2444

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\tmp3D2F.tmp

Filesize
1KB

MD5
9718c257fbb580dcd1ba0f1fc1046cd4

SHA1
a9a9f8c964f8c138b27bce454c26f450c43ce5c9

SHA256
1566c0e5d3c231d166cf7ca78ddba28449446e385c2e38b4486b6a18d16aa83c

SHA512
f9a2f3461375bff4750617cfaaf95afeb1f5d7b9103b6f041ccca8ba733ca02b8a2ba44fa0153ab063ba2549473e4ed674b23e047292061833c7a9df87e198e9

Download Submit
memory/1448-32-0x0000000074310000-0x00000000749FE000-memory.dmp

Filesize
6.9MB

Download
memory/1448-1-0x00000000013C0000-0x000000000149E000-memory.dmp

Filesize
888KB

Download
memory/1448-2-0x0000000074310000-0x00000000749FE000-memory.dmp

Filesize
6.9MB

Download
memory/1448-3-0x00000000048A0000-0x0000000004972000-memory.dmp

Filesize
840KB

Download
memory/1448-4-0x00000000003B0000-0x00000000003BE000-memory.dmp

Filesize
56KB

Download
memory/1448-5-0x000000007431E000-0x000000007431F000-memory.dmp

Filesize
4KB

Download
memory/1448-6-0x0000000074310000-0x00000000749FE000-memory.dmp

Filesize
6.9MB

Download
memory/1448-7-0x00000000054C0000-0x000000000557E000-memory.dmp

Filesize
760KB

Download
memory/1448-0-0x000000007431E000-0x000000007431F000-memory.dmp

Filesize
4KB

Download
memory/2444-27-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2444-23-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2444-33-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2444-30-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2444-31-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2444-29-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2444-13-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2444-25-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2444-21-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2444-19-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2444-17-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2444-34-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2444-15-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2444-38-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2444-37-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2444-39-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2444-43-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2444-42-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2444-45-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2444-44-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2444-46-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2444-47-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2444-49-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2444-48-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads