remcos | 437b6c36c64a603dbb3a6d968e8c626cb41a0bb70fb5570ae1aa3f4d3788a7e5

General

Target

ed9fdc716cfd7cc640ec2658883268b5d297c33d316333d2141b8b7265917f9a.exe
Size

829KB
MD5

23c8a1db1a2aaae1a2f2f8c3302a0c1e
SHA1

7d6eaf00cdff48fdc11a1ee81e26d2b2ac865032
SHA256

ed9fdc716cfd7cc640ec2658883268b5d297c33d316333d2141b8b7265917f9a
SHA512

de1fbe44e655a5d446bae78d9220be54a6ba455cfa59fbcb9c2eb671c82bc966b838e05852577aaee1affcf040d70f02d6427ce7c51a7213e3b8ea547f750584
SSDEEP

24576:CWVOV0hHEkBvXSJoKgu2PnN480PaBk6wI:Ci9vXSJoK4vNVmQk6w

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Version

3.3.2 Pro

Botnet

RemoteHost

C2

azuite.ddns.net:7667

Attributes

audio_folder
MicRecords
audio_path
%AppData%
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
install_path
%AppData%
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
keylog_path
%AppData%
mouse_option
false
mutex
stub1-LT34V5
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
take_screenshot_title
notepad;solitaire;

Signatures

Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos
Remcos family
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
2948	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1632 set thread context of 2800	1632	ed9fdc716cfd7cc640ec2658883268b5d297c33d316333d2141b8b7265917f9a.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	RegSvcs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ed9fdc716cfd7cc640ec2658883268b5d297c33d316333d2141b8b7265917f9a.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
2896	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1632	ed9fdc716cfd7cc640ec2658883268b5d297c33d316333d2141b8b7265917f9a.exe
1632	ed9fdc716cfd7cc640ec2658883268b5d297c33d316333d2141b8b7265917f9a.exe
1632	ed9fdc716cfd7cc640ec2658883268b5d297c33d316333d2141b8b7265917f9a.exe
2948	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1632	ed9fdc716cfd7cc640ec2658883268b5d297c33d316333d2141b8b7265917f9a.exe
Token: SeDebugPrivilege	2948	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2800	RegSvcs.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 1632 wrote to memory of 2948	1632	ed9fdc716cfd7cc640ec2658883268b5d297c33d316333d2141b8b7265917f9a.exe	31
PID 1632 wrote to memory of 2948	1632	ed9fdc716cfd7cc640ec2658883268b5d297c33d316333d2141b8b7265917f9a.exe	31
PID 1632 wrote to memory of 2948	1632	ed9fdc716cfd7cc640ec2658883268b5d297c33d316333d2141b8b7265917f9a.exe	31
PID 1632 wrote to memory of 2948	1632	ed9fdc716cfd7cc640ec2658883268b5d297c33d316333d2141b8b7265917f9a.exe	31
PID 1632 wrote to memory of 2896	1632	ed9fdc716cfd7cc640ec2658883268b5d297c33d316333d2141b8b7265917f9a.exe	32
PID 1632 wrote to memory of 2896	1632	ed9fdc716cfd7cc640ec2658883268b5d297c33d316333d2141b8b7265917f9a.exe	32
PID 1632 wrote to memory of 2896	1632	ed9fdc716cfd7cc640ec2658883268b5d297c33d316333d2141b8b7265917f9a.exe	32
PID 1632 wrote to memory of 2896	1632	ed9fdc716cfd7cc640ec2658883268b5d297c33d316333d2141b8b7265917f9a.exe	32
PID 1632 wrote to memory of 2800	1632	ed9fdc716cfd7cc640ec2658883268b5d297c33d316333d2141b8b7265917f9a.exe	35
PID 1632 wrote to memory of 2800	1632	ed9fdc716cfd7cc640ec2658883268b5d297c33d316333d2141b8b7265917f9a.exe	35
PID 1632 wrote to memory of 2800	1632	ed9fdc716cfd7cc640ec2658883268b5d297c33d316333d2141b8b7265917f9a.exe	35
PID 1632 wrote to memory of 2800	1632	ed9fdc716cfd7cc640ec2658883268b5d297c33d316333d2141b8b7265917f9a.exe	35
PID 1632 wrote to memory of 2800	1632	ed9fdc716cfd7cc640ec2658883268b5d297c33d316333d2141b8b7265917f9a.exe	35
PID 1632 wrote to memory of 2800	1632	ed9fdc716cfd7cc640ec2658883268b5d297c33d316333d2141b8b7265917f9a.exe	35
PID 1632 wrote to memory of 2800	1632	ed9fdc716cfd7cc640ec2658883268b5d297c33d316333d2141b8b7265917f9a.exe	35
PID 1632 wrote to memory of 2800	1632	ed9fdc716cfd7cc640ec2658883268b5d297c33d316333d2141b8b7265917f9a.exe	35
PID 1632 wrote to memory of 2800	1632	ed9fdc716cfd7cc640ec2658883268b5d297c33d316333d2141b8b7265917f9a.exe	35
PID 1632 wrote to memory of 2800	1632	ed9fdc716cfd7cc640ec2658883268b5d297c33d316333d2141b8b7265917f9a.exe	35
PID 1632 wrote to memory of 2800	1632	ed9fdc716cfd7cc640ec2658883268b5d297c33d316333d2141b8b7265917f9a.exe	35
PID 1632 wrote to memory of 2800	1632	ed9fdc716cfd7cc640ec2658883268b5d297c33d316333d2141b8b7265917f9a.exe	35
PID 1632 wrote to memory of 2800	1632	ed9fdc716cfd7cc640ec2658883268b5d297c33d316333d2141b8b7265917f9a.exe	35
PID 1632 wrote to memory of 2800	1632	ed9fdc716cfd7cc640ec2658883268b5d297c33d316333d2141b8b7265917f9a.exe	35
PID 1632 wrote to memory of 2800	1632	ed9fdc716cfd7cc640ec2658883268b5d297c33d316333d2141b8b7265917f9a.exe	35
PID 1632 wrote to memory of 2800	1632	ed9fdc716cfd7cc640ec2658883268b5d297c33d316333d2141b8b7265917f9a.exe	35

C:\Users\Admin\AppData\Local\Temp\ed9fdc716cfd7cc640ec2658883268b5d297c33d316333d2141b8b7265917f9a.exe
"C:\Users\Admin\AppData\Local\Temp\ed9fdc716cfd7cc640ec2658883268b5d297c33d316333d2141b8b7265917f9a.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1632
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\hqueiPqLyjHxUl.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2948
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\hqueiPqLyjHxUl" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4B72.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2896
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:2800

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\tmp4B72.tmp

Filesize
1KB

MD5
cd69944b84e143906625820f098d8175

SHA1
5f7918a4d1e6e7f3c0f2ec9aee6f384dbe8c4c44

SHA256
0e3b1cbb5b4ed0e45ab230f02a7958c37bf1a39100a7a85971f3cd3f4ee937f2

SHA512
8314d0c157cc0cf57ebf523a406bdf5397c9bb7d13eeb492e3d913509ac3ae8a3c463fd675cbcae0f8080a7144bcd614ab97853bde30ada6beac9d0dd35e1017

Download Submit
C:\Users\Admin\AppData\Roaming\remcos\logs.dat

Filesize
144B

MD5
30b1500670914a7530ab1f74ebe9e729

SHA1
927c8f954d97783460fdba940d25ef5952af1eaf

SHA256
1ca56199f3468f490e2c753241adba4f53d3f56bdd9bb74273342e8d03c8725c

SHA512
5dadb11e3881990b04b2cc3750e9997328e2b90f20a724bfc5e84df21d14013666a3b6f387e3a785ab84ef615f39dffbf245e683eae554289c143a1ed8a476bc

Download Submit
memory/1632-0-0x0000000073CCE000-0x0000000073CCF000-memory.dmp

Filesize
4KB

Download
memory/1632-1-0x0000000000C90000-0x0000000000D66000-memory.dmp

Filesize
856KB

Download
memory/1632-2-0x0000000073CC0000-0x00000000743AE000-memory.dmp

Filesize
6.9MB

Download
memory/1632-3-0x0000000000490000-0x00000000004A4000-memory.dmp

Filesize
80KB

Download
memory/1632-4-0x0000000073CCE000-0x0000000073CCF000-memory.dmp

Filesize
4KB

Download
memory/1632-5-0x0000000073CC0000-0x00000000743AE000-memory.dmp

Filesize
6.9MB

Download
memory/1632-6-0x00000000049F0000-0x0000000004AB2000-memory.dmp

Filesize
776KB

Download
memory/1632-37-0x0000000073CC0000-0x00000000743AE000-memory.dmp

Filesize
6.9MB

Download
memory/2800-36-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/2800-33-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/2800-32-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/2800-31-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/2800-30-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2800-28-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/2800-26-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/2800-24-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/2800-22-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/2800-20-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/2800-18-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/2800-16-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/2800-14-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads