remcos | fd289f86941e426b8116ead4b68649fac1dc3fc5611da26af9a446f911b30ea5

General

Target

fd289f86941e426b8116ead4b68649fac1dc3fc5611da26af9a446f911b30ea5.exe
Size

1.0MB
MD5

f8c03f656b356b3477ea05d7427bce3e
SHA1

b20be63658060f9356e90e7846c2091069950682
SHA256

fd289f86941e426b8116ead4b68649fac1dc3fc5611da26af9a446f911b30ea5
SHA512

35df2187b512fe1908aae5159741e3d666e078fc0e4bbba17c693fdfffab810f8abaf4fe622de3d5a1c32e70db097c0608bc4b9b7723282cd635638971d888d6
SSDEEP

24576:nIUobyTkpVyd+8OuyBNtpFgX9AB5NHY0hBMfUzvB0JERhM1:d96o7OuyBTqCNHY0r50e41

Score

10^/10

remcos udu discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

udu

C2

UDUM.WORK.GD:2431

Attributes

audio_folder
MicRecords
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
remcos.exe
copy_folder
vlc
delete_file
false
hide_file
false
hide_keylog_file
false
install_flag
false
keylog_crypt
true
keylog_file
logs.dat
keylog_flag
false
keylog_folder
sos
mouse_option
false
mutex
udm-2WYU92
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 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2156	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3064 set thread context of 1804	3064	fd289f86941e426b8116ead4b68649fac1dc3fc5611da26af9a446f911b30ea5.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	fd289f86941e426b8116ead4b68649fac1dc3fc5611da26af9a446f911b30ea5.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	fd289f86941e426b8116ead4b68649fac1dc3fc5611da26af9a446f911b30ea5.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
2824	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
3064	fd289f86941e426b8116ead4b68649fac1dc3fc5611da26af9a446f911b30ea5.exe
3064	fd289f86941e426b8116ead4b68649fac1dc3fc5611da26af9a446f911b30ea5.exe
2156	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3064	fd289f86941e426b8116ead4b68649fac1dc3fc5611da26af9a446f911b30ea5.exe
Token: SeDebugPrivilege	2156	powershell.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1804	fd289f86941e426b8116ead4b68649fac1dc3fc5611da26af9a446f911b30ea5.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
1804	fd289f86941e426b8116ead4b68649fac1dc3fc5611da26af9a446f911b30ea5.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1804	fd289f86941e426b8116ead4b68649fac1dc3fc5611da26af9a446f911b30ea5.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 3064 wrote to memory of 2156	3064	fd289f86941e426b8116ead4b68649fac1dc3fc5611da26af9a446f911b30ea5.exe	30
PID 3064 wrote to memory of 2156	3064	fd289f86941e426b8116ead4b68649fac1dc3fc5611da26af9a446f911b30ea5.exe	30
PID 3064 wrote to memory of 2156	3064	fd289f86941e426b8116ead4b68649fac1dc3fc5611da26af9a446f911b30ea5.exe	30
PID 3064 wrote to memory of 2156	3064	fd289f86941e426b8116ead4b68649fac1dc3fc5611da26af9a446f911b30ea5.exe	30
PID 3064 wrote to memory of 2824	3064	fd289f86941e426b8116ead4b68649fac1dc3fc5611da26af9a446f911b30ea5.exe	32
PID 3064 wrote to memory of 2824	3064	fd289f86941e426b8116ead4b68649fac1dc3fc5611da26af9a446f911b30ea5.exe	32
PID 3064 wrote to memory of 2824	3064	fd289f86941e426b8116ead4b68649fac1dc3fc5611da26af9a446f911b30ea5.exe	32
PID 3064 wrote to memory of 2824	3064	fd289f86941e426b8116ead4b68649fac1dc3fc5611da26af9a446f911b30ea5.exe	32
PID 3064 wrote to memory of 1804	3064	fd289f86941e426b8116ead4b68649fac1dc3fc5611da26af9a446f911b30ea5.exe	34
PID 3064 wrote to memory of 1804	3064	fd289f86941e426b8116ead4b68649fac1dc3fc5611da26af9a446f911b30ea5.exe	34
PID 3064 wrote to memory of 1804	3064	fd289f86941e426b8116ead4b68649fac1dc3fc5611da26af9a446f911b30ea5.exe	34
PID 3064 wrote to memory of 1804	3064	fd289f86941e426b8116ead4b68649fac1dc3fc5611da26af9a446f911b30ea5.exe	34
PID 3064 wrote to memory of 1804	3064	fd289f86941e426b8116ead4b68649fac1dc3fc5611da26af9a446f911b30ea5.exe	34
PID 3064 wrote to memory of 1804	3064	fd289f86941e426b8116ead4b68649fac1dc3fc5611da26af9a446f911b30ea5.exe	34
PID 3064 wrote to memory of 1804	3064	fd289f86941e426b8116ead4b68649fac1dc3fc5611da26af9a446f911b30ea5.exe	34
PID 3064 wrote to memory of 1804	3064	fd289f86941e426b8116ead4b68649fac1dc3fc5611da26af9a446f911b30ea5.exe	34
PID 3064 wrote to memory of 1804	3064	fd289f86941e426b8116ead4b68649fac1dc3fc5611da26af9a446f911b30ea5.exe	34
PID 3064 wrote to memory of 1804	3064	fd289f86941e426b8116ead4b68649fac1dc3fc5611da26af9a446f911b30ea5.exe	34
PID 3064 wrote to memory of 1804	3064	fd289f86941e426b8116ead4b68649fac1dc3fc5611da26af9a446f911b30ea5.exe	34
PID 3064 wrote to memory of 1804	3064	fd289f86941e426b8116ead4b68649fac1dc3fc5611da26af9a446f911b30ea5.exe	34
PID 3064 wrote to memory of 1804	3064	fd289f86941e426b8116ead4b68649fac1dc3fc5611da26af9a446f911b30ea5.exe	34

C:\Users\Admin\AppData\Local\Temp\fd289f86941e426b8116ead4b68649fac1dc3fc5611da26af9a446f911b30ea5.exe
"C:\Users\Admin\AppData\Local\Temp\fd289f86941e426b8116ead4b68649fac1dc3fc5611da26af9a446f911b30ea5.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3064
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\UvwokF.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2156
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\UvwokF" /XML "C:\Users\Admin\AppData\Local\Temp\tmp312E.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2824
- C:\Users\Admin\AppData\Local\Temp\fd289f86941e426b8116ead4b68649fac1dc3fc5611da26af9a446f911b30ea5.exe
  "C:\Users\Admin\AppData\Local\Temp\fd289f86941e426b8116ead4b68649fac1dc3fc5611da26af9a446f911b30ea5.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of SetWindowsHookEx
  PID:1804

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

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Downloads

C:\ProgramData\sos\logs.dat

Filesize
318B

MD5
98b2bfe819d89281dfa91d56267fd10e

SHA1
945ca98c2253fb307837b077a5cd9f41244df008

SHA256
9e7a54db5a8190b0c239a071ddacdef8bc7335cdd12a80d4456feffa251c6a31

SHA512
8919013c2d70c5969b78acc6cd528619eec7523e817c75a418add17e741a8536d57b6fc0d8d425ce31fa831d69b8f04e0459c4f8f71b528c9f7a05b5a1ba40bf

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp312E.tmp

Filesize
1KB

MD5
3aa177a9ac5bfaa36b18c1cfe6aea900

SHA1
f36d0a5492c4c93cca560ad8806adcc45f651113

SHA256
c648e13c4fbd3175f6eff1eb952ef2ddd24d107024effc487ac68e7855cb8c97

SHA512
0aff05d1cb44c4610232acee82d504aef356347c50878787de6382f1c0a34fedb323c2b9a9b33371a4dc9955d56bef3026a190adbc389858e8c429f7b9a19d72

Download Submit
memory/1804-24-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1804-46-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1804-78-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1804-33-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1804-77-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1804-70-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1804-22-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1804-14-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1804-20-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1804-18-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1804-16-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1804-32-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1804-31-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1804-30-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1804-28-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1804-26-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1804-69-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1804-62-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1804-61-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1804-37-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1804-34-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1804-39-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1804-40-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1804-41-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1804-42-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1804-54-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1804-45-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1804-53-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3064-1-0x0000000000090000-0x000000000019E000-memory.dmp

Filesize
1.1MB

Download
memory/3064-38-0x00000000743A0000-0x0000000074A8E000-memory.dmp

Filesize
6.9MB

Download
memory/3064-3-0x00000000004A0000-0x00000000004B8000-memory.dmp

Filesize
96KB

Download
memory/3064-5-0x00000000743A0000-0x0000000074A8E000-memory.dmp

Filesize
6.9MB

Download
memory/3064-4-0x00000000743AE000-0x00000000743AF000-memory.dmp

Filesize
4KB

Download
memory/3064-2-0x00000000743A0000-0x0000000074A8E000-memory.dmp

Filesize
6.9MB

Download
memory/3064-6-0x0000000004990000-0x0000000004A50000-memory.dmp

Filesize
768KB

Download
memory/3064-0-0x00000000743AE000-0x00000000743AF000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads