remcos | a9d403efd3d1d5740a5b1d8a0d691422b4cede106265437f533523f2d7bac16e

General

Target

a9d403efd3d1d5740a5b1d8a0d691422b4cede106265437f533523f2d7bac16e.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
2340	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1600 set thread context of 2776	1600	a9d403efd3d1d5740a5b1d8a0d691422b4cede106265437f533523f2d7bac16e.exe	35

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	a9d403efd3d1d5740a5b1d8a0d691422b4cede106265437f533523f2d7bac16e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a9d403efd3d1d5740a5b1d8a0d691422b4cede106265437f533523f2d7bac16e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.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
2128	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2340	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2340	powershell.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 1600 wrote to memory of 2340	1600	a9d403efd3d1d5740a5b1d8a0d691422b4cede106265437f533523f2d7bac16e.exe	31
PID 1600 wrote to memory of 2340	1600	a9d403efd3d1d5740a5b1d8a0d691422b4cede106265437f533523f2d7bac16e.exe	31
PID 1600 wrote to memory of 2340	1600	a9d403efd3d1d5740a5b1d8a0d691422b4cede106265437f533523f2d7bac16e.exe	31
PID 1600 wrote to memory of 2340	1600	a9d403efd3d1d5740a5b1d8a0d691422b4cede106265437f533523f2d7bac16e.exe	31
PID 1600 wrote to memory of 2128	1600	a9d403efd3d1d5740a5b1d8a0d691422b4cede106265437f533523f2d7bac16e.exe	33
PID 1600 wrote to memory of 2128	1600	a9d403efd3d1d5740a5b1d8a0d691422b4cede106265437f533523f2d7bac16e.exe	33
PID 1600 wrote to memory of 2128	1600	a9d403efd3d1d5740a5b1d8a0d691422b4cede106265437f533523f2d7bac16e.exe	33
PID 1600 wrote to memory of 2128	1600	a9d403efd3d1d5740a5b1d8a0d691422b4cede106265437f533523f2d7bac16e.exe	33
PID 1600 wrote to memory of 2776	1600	a9d403efd3d1d5740a5b1d8a0d691422b4cede106265437f533523f2d7bac16e.exe	35
PID 1600 wrote to memory of 2776	1600	a9d403efd3d1d5740a5b1d8a0d691422b4cede106265437f533523f2d7bac16e.exe	35
PID 1600 wrote to memory of 2776	1600	a9d403efd3d1d5740a5b1d8a0d691422b4cede106265437f533523f2d7bac16e.exe	35
PID 1600 wrote to memory of 2776	1600	a9d403efd3d1d5740a5b1d8a0d691422b4cede106265437f533523f2d7bac16e.exe	35
PID 1600 wrote to memory of 2776	1600	a9d403efd3d1d5740a5b1d8a0d691422b4cede106265437f533523f2d7bac16e.exe	35
PID 1600 wrote to memory of 2776	1600	a9d403efd3d1d5740a5b1d8a0d691422b4cede106265437f533523f2d7bac16e.exe	35
PID 1600 wrote to memory of 2776	1600	a9d403efd3d1d5740a5b1d8a0d691422b4cede106265437f533523f2d7bac16e.exe	35
PID 1600 wrote to memory of 2776	1600	a9d403efd3d1d5740a5b1d8a0d691422b4cede106265437f533523f2d7bac16e.exe	35
PID 1600 wrote to memory of 2776	1600	a9d403efd3d1d5740a5b1d8a0d691422b4cede106265437f533523f2d7bac16e.exe	35
PID 1600 wrote to memory of 2776	1600	a9d403efd3d1d5740a5b1d8a0d691422b4cede106265437f533523f2d7bac16e.exe	35
PID 1600 wrote to memory of 2776	1600	a9d403efd3d1d5740a5b1d8a0d691422b4cede106265437f533523f2d7bac16e.exe	35
PID 1600 wrote to memory of 2776	1600	a9d403efd3d1d5740a5b1d8a0d691422b4cede106265437f533523f2d7bac16e.exe	35
PID 1600 wrote to memory of 2776	1600	a9d403efd3d1d5740a5b1d8a0d691422b4cede106265437f533523f2d7bac16e.exe	35

C:\Users\Admin\AppData\Local\Temp\a9d403efd3d1d5740a5b1d8a0d691422b4cede106265437f533523f2d7bac16e.exe
"C:\Users\Admin\AppData\Local\Temp\a9d403efd3d1d5740a5b1d8a0d691422b4cede106265437f533523f2d7bac16e.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1600
- 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:2340
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\GiyNXejQVN" /XML "C:\Users\Admin\AppData\Local\Temp\tmpEB39.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2128
- C:\Users\Admin\AppData\Local\Temp\a9d403efd3d1d5740a5b1d8a0d691422b4cede106265437f533523f2d7bac16e.exe
  "C:\Users\Admin\AppData\Local\Temp\a9d403efd3d1d5740a5b1d8a0d691422b4cede106265437f533523f2d7bac16e.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2776

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\tmpEB39.tmp

Filesize
1KB

MD5
f0f51f96b230d4ff60fdd5b6e92b8759

SHA1
16f060e9dd01909508e12f0915fc8f2db464f09f

SHA256
d6555056813945a9cebffd5478d101950e845b465b5ca966e1392871c42c1d2e

SHA512
93cb9d792c55aad0a539da2115d67e88a7ff0873c4fb6ec2a37f62748cc746c2c8b6e9f4e39785685f509d590931578970264fc5720359fecb0916b497486879

Download Submit
memory/1600-0-0x0000000074DEE000-0x0000000074DEF000-memory.dmp

Filesize
4KB

Download
memory/1600-1-0x0000000000D00000-0x0000000000DDA000-memory.dmp

Filesize
872KB

Download
memory/1600-2-0x0000000074DE0000-0x00000000754CE000-memory.dmp

Filesize
6.9MB

Download
memory/1600-3-0x00000000004D0000-0x00000000004DE000-memory.dmp

Filesize
56KB

Download
memory/1600-4-0x0000000074DEE000-0x0000000074DEF000-memory.dmp

Filesize
4KB

Download
memory/1600-5-0x0000000074DE0000-0x00000000754CE000-memory.dmp

Filesize
6.9MB

Download
memory/1600-6-0x0000000005030000-0x00000000050EE000-memory.dmp

Filesize
760KB

Download
memory/1600-35-0x0000000074DE0000-0x00000000754CE000-memory.dmp

Filesize
6.9MB

Download
memory/2776-26-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2776-16-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2776-34-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2776-33-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2776-32-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2776-31-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2776-30-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2776-28-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2776-22-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2776-20-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2776-18-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2776-14-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2776-24-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2776-36-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2776-37-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2776-38-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2776-41-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2776-42-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2776-43-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2776-44-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2776-45-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2776-46-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2776-47-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2776-48-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads