remcos | a3b8b22001bd2cdb7235143b52225c2063d33b63a87e44cba0dae647c49be7ce

General

Target

a3b8b22001bd2cdb7235143b52225c2063d33b63a87e44cba0dae647c49be7ce.exe
Size

903KB
MD5

51f72049f9a159ebe2d0703fa2e9e898
SHA1

8c85bdf7ceff32613cf219da176808ad8a8a8b99
SHA256

a3b8b22001bd2cdb7235143b52225c2063d33b63a87e44cba0dae647c49be7ce
SHA512

fb690d21a2a4a7167c9cf6932a20772db4431bff831e9aafbf502913cd84523f99a002a6ae88383d2cfe6b80e89242ebf8448b1ef563bfce322edb0afc42e168
SSDEEP

24576:RUN2k1xt4uIDiHiNan2k95YYzBQak2P44b3i64I+xrST9i:RU8MfI8uan2kPTz7p9b5VTk

Score

10^/10

remcos rhymer discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

Rhymer

C2

64.188.12.208:5500

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-WW3VS5
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
2708	powershell.exe
2940	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2860 set thread context of 2680	2860	a3b8b22001bd2cdb7235143b52225c2063d33b63a87e44cba0dae647c49be7ce.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	a3b8b22001bd2cdb7235143b52225c2063d33b63a87e44cba0dae647c49be7ce.exe
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	a3b8b22001bd2cdb7235143b52225c2063d33b63a87e44cba0dae647c49be7ce.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
2640	schtasks.exe

Suspicious behavior: EnumeratesProcesses 19 IoCs

pid	Process
2860	a3b8b22001bd2cdb7235143b52225c2063d33b63a87e44cba0dae647c49be7ce.exe
2860	a3b8b22001bd2cdb7235143b52225c2063d33b63a87e44cba0dae647c49be7ce.exe
2860	a3b8b22001bd2cdb7235143b52225c2063d33b63a87e44cba0dae647c49be7ce.exe
2860	a3b8b22001bd2cdb7235143b52225c2063d33b63a87e44cba0dae647c49be7ce.exe
2860	a3b8b22001bd2cdb7235143b52225c2063d33b63a87e44cba0dae647c49be7ce.exe
2860	a3b8b22001bd2cdb7235143b52225c2063d33b63a87e44cba0dae647c49be7ce.exe
2860	a3b8b22001bd2cdb7235143b52225c2063d33b63a87e44cba0dae647c49be7ce.exe
2860	a3b8b22001bd2cdb7235143b52225c2063d33b63a87e44cba0dae647c49be7ce.exe
2860	a3b8b22001bd2cdb7235143b52225c2063d33b63a87e44cba0dae647c49be7ce.exe
2860	a3b8b22001bd2cdb7235143b52225c2063d33b63a87e44cba0dae647c49be7ce.exe
2860	a3b8b22001bd2cdb7235143b52225c2063d33b63a87e44cba0dae647c49be7ce.exe
2860	a3b8b22001bd2cdb7235143b52225c2063d33b63a87e44cba0dae647c49be7ce.exe
2860	a3b8b22001bd2cdb7235143b52225c2063d33b63a87e44cba0dae647c49be7ce.exe
2860	a3b8b22001bd2cdb7235143b52225c2063d33b63a87e44cba0dae647c49be7ce.exe
2860	a3b8b22001bd2cdb7235143b52225c2063d33b63a87e44cba0dae647c49be7ce.exe
2860	a3b8b22001bd2cdb7235143b52225c2063d33b63a87e44cba0dae647c49be7ce.exe
2860	a3b8b22001bd2cdb7235143b52225c2063d33b63a87e44cba0dae647c49be7ce.exe
2940	powershell.exe
2708	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2860	a3b8b22001bd2cdb7235143b52225c2063d33b63a87e44cba0dae647c49be7ce.exe
Token: SeDebugPrivilege	2940	powershell.exe
Token: SeDebugPrivilege	2708	powershell.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 2860 wrote to memory of 2708	2860	a3b8b22001bd2cdb7235143b52225c2063d33b63a87e44cba0dae647c49be7ce.exe	31
PID 2860 wrote to memory of 2708	2860	a3b8b22001bd2cdb7235143b52225c2063d33b63a87e44cba0dae647c49be7ce.exe	31
PID 2860 wrote to memory of 2708	2860	a3b8b22001bd2cdb7235143b52225c2063d33b63a87e44cba0dae647c49be7ce.exe	31
PID 2860 wrote to memory of 2708	2860	a3b8b22001bd2cdb7235143b52225c2063d33b63a87e44cba0dae647c49be7ce.exe	31
PID 2860 wrote to memory of 2940	2860	a3b8b22001bd2cdb7235143b52225c2063d33b63a87e44cba0dae647c49be7ce.exe	33
PID 2860 wrote to memory of 2940	2860	a3b8b22001bd2cdb7235143b52225c2063d33b63a87e44cba0dae647c49be7ce.exe	33
PID 2860 wrote to memory of 2940	2860	a3b8b22001bd2cdb7235143b52225c2063d33b63a87e44cba0dae647c49be7ce.exe	33
PID 2860 wrote to memory of 2940	2860	a3b8b22001bd2cdb7235143b52225c2063d33b63a87e44cba0dae647c49be7ce.exe	33
PID 2860 wrote to memory of 2640	2860	a3b8b22001bd2cdb7235143b52225c2063d33b63a87e44cba0dae647c49be7ce.exe	35
PID 2860 wrote to memory of 2640	2860	a3b8b22001bd2cdb7235143b52225c2063d33b63a87e44cba0dae647c49be7ce.exe	35
PID 2860 wrote to memory of 2640	2860	a3b8b22001bd2cdb7235143b52225c2063d33b63a87e44cba0dae647c49be7ce.exe	35
PID 2860 wrote to memory of 2640	2860	a3b8b22001bd2cdb7235143b52225c2063d33b63a87e44cba0dae647c49be7ce.exe	35
PID 2860 wrote to memory of 2680	2860	a3b8b22001bd2cdb7235143b52225c2063d33b63a87e44cba0dae647c49be7ce.exe	37
PID 2860 wrote to memory of 2680	2860	a3b8b22001bd2cdb7235143b52225c2063d33b63a87e44cba0dae647c49be7ce.exe	37
PID 2860 wrote to memory of 2680	2860	a3b8b22001bd2cdb7235143b52225c2063d33b63a87e44cba0dae647c49be7ce.exe	37
PID 2860 wrote to memory of 2680	2860	a3b8b22001bd2cdb7235143b52225c2063d33b63a87e44cba0dae647c49be7ce.exe	37
PID 2860 wrote to memory of 2680	2860	a3b8b22001bd2cdb7235143b52225c2063d33b63a87e44cba0dae647c49be7ce.exe	37
PID 2860 wrote to memory of 2680	2860	a3b8b22001bd2cdb7235143b52225c2063d33b63a87e44cba0dae647c49be7ce.exe	37
PID 2860 wrote to memory of 2680	2860	a3b8b22001bd2cdb7235143b52225c2063d33b63a87e44cba0dae647c49be7ce.exe	37
PID 2860 wrote to memory of 2680	2860	a3b8b22001bd2cdb7235143b52225c2063d33b63a87e44cba0dae647c49be7ce.exe	37
PID 2860 wrote to memory of 2680	2860	a3b8b22001bd2cdb7235143b52225c2063d33b63a87e44cba0dae647c49be7ce.exe	37
PID 2860 wrote to memory of 2680	2860	a3b8b22001bd2cdb7235143b52225c2063d33b63a87e44cba0dae647c49be7ce.exe	37
PID 2860 wrote to memory of 2680	2860	a3b8b22001bd2cdb7235143b52225c2063d33b63a87e44cba0dae647c49be7ce.exe	37
PID 2860 wrote to memory of 2680	2860	a3b8b22001bd2cdb7235143b52225c2063d33b63a87e44cba0dae647c49be7ce.exe	37
PID 2860 wrote to memory of 2680	2860	a3b8b22001bd2cdb7235143b52225c2063d33b63a87e44cba0dae647c49be7ce.exe	37

C:\Users\Admin\AppData\Local\Temp\a3b8b22001bd2cdb7235143b52225c2063d33b63a87e44cba0dae647c49be7ce.exe
"C:\Users\Admin\AppData\Local\Temp\a3b8b22001bd2cdb7235143b52225c2063d33b63a87e44cba0dae647c49be7ce.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2860
- 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\a3b8b22001bd2cdb7235143b52225c2063d33b63a87e44cba0dae647c49be7ce.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  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\Roaming\BAjeeg.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2940
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\BAjeeg" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6DD0.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2640
- C:\Users\Admin\AppData\Local\Temp\a3b8b22001bd2cdb7235143b52225c2063d33b63a87e44cba0dae647c49be7ce.exe
  "C:\Users\Admin\AppData\Local\Temp\a3b8b22001bd2cdb7235143b52225c2063d33b63a87e44cba0dae647c49be7ce.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2680

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\tmp6DD0.tmp

Filesize
1KB

MD5
9df15f5319528cc0b92a722937ddbec6

SHA1
6a0bc60cf6c4464b2897041f0daf91f37dd71e69

SHA256
4c0b871ebdaf228fff5a6c4b6581d27bd846513ab97675d433ac98c44c298670

SHA512
8a273eaab259b4ad10d386a484e1c2b872ffea1cebd361c8ccfb62926dad66ecf7f5c948e5661382a57e4a95deae7c4b3f9f9953b55eebfca6ef83bfa96b950c

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

Filesize
7KB

MD5
3eac87d6a35076e869abfc6b0f265562

SHA1
742d099e305fdcdaef87e1fd48716eeefd1ea3d2

SHA256
eaa45c5e78c466faaa9fe4c355eea218bed3679af5402ee332878781cc6a5009

SHA512
76b4932df9fc49708993a1706e14fce5cf99281bf6b35f09fd65fbc6b699d951776afa323960af351e17a4da4c64876d4f2b285fcd9226efad4973df1d1924d0

Download Submit
memory/2680-34-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2680-52-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2680-33-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2680-51-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2680-50-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2680-49-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2680-47-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2680-48-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2680-20-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2680-24-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2680-30-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2680-37-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2680-38-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2680-36-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2680-44-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2680-28-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2680-43-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2680-26-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2680-22-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2680-39-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2680-42-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2680-41-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2860-40-0x00000000740B0000-0x000000007479E000-memory.dmp

Filesize
6.9MB

Download
memory/2860-3-0x0000000004F80000-0x0000000005056000-memory.dmp

Filesize
856KB

Download
memory/2860-4-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2860-1-0x0000000000A20000-0x0000000000B06000-memory.dmp

Filesize
920KB

Download
memory/2860-2-0x00000000740B0000-0x000000007479E000-memory.dmp

Filesize
6.9MB

Download
memory/2860-7-0x00000000055E0000-0x00000000056A0000-memory.dmp

Filesize
768KB

Download
memory/2860-6-0x00000000740B0000-0x000000007479E000-memory.dmp

Filesize
6.9MB

Download
memory/2860-5-0x00000000740BE000-0x00000000740BF000-memory.dmp

Filesize
4KB

Download
memory/2860-0-0x00000000740BE000-0x00000000740BF000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads