remcos | f34fd6a0b6536f074e3a1bc41f0e35a80667688de9668cd1d75f6920a06e7607

Analysis

max time kernel
133s
max time network
103s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
30-08-2024 02:27

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

f34fd6a0b6536f074e3a1bc41f0e35a80667688de9668cd1d75f6920a06e7607.exe
Size

970KB
MD5

4b487f91d2504883b4c9df18848af5ef
SHA1

964e913b8b4cba2232e46b3fe0b73b1c009bed7d
SHA256

f34fd6a0b6536f074e3a1bc41f0e35a80667688de9668cd1d75f6920a06e7607
SHA512

2f38dfa36bff6235dcddb359af65e3374f556e40fd950c6e5e9b52a474d46227d833fd9897efc925b781f6b97b093b29dc9d119edc88d76a23d3407a1471e23b
SSDEEP

24576:BYx8QzPlMGKwlyvxR27CYOlOLkgggD8lyftUCp2mv:6x8QzZYvxR2WbRggp0XT

Score

10^/10

remcos h�texte discovery execution persistence rat

Malware Config

Extracted

Family

remcos

Botnet

H�texte

rodri.selfip.net:50019

racindjah.blogdns.com:50066

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
true
hide_keylog_file
false
install_flag
true
keylog_crypt
true
keylog_file
journaux.dat
keylog_flag
false
keylog_folder
remcos
mouse_option
false
mutex
Rmc-B6J50C
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Captures décran
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
3824	powershell.exe
4216	powershell.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation	f34fd6a0b6536f074e3a1bc41f0e35a80667688de9668cd1d75f6920a06e7607.exe

Executes dropped EXE 1 IoCs

pid	Process
4376	remcos.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Rmc-B6J50C = "\"C:\\ProgramData\\Remcos\\remcos.exe\""	MSBuild.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rmc-B6J50C = "\"C:\\ProgramData\\Remcos\\remcos.exe\""	MSBuild.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1632 set thread context of 1916	1632	f34fd6a0b6536f074e3a1bc41f0e35a80667688de9668cd1d75f6920a06e7607.exe	100

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 6 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	f34fd6a0b6536f074e3a1bc41f0e35a80667688de9668cd1d75f6920a06e7607.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	MSBuild.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	remcos.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	MSBuild.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
3784	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
1632	f34fd6a0b6536f074e3a1bc41f0e35a80667688de9668cd1d75f6920a06e7607.exe
3824	powershell.exe
3824	powershell.exe
4216	powershell.exe
4216	powershell.exe
1632	f34fd6a0b6536f074e3a1bc41f0e35a80667688de9668cd1d75f6920a06e7607.exe
1632	f34fd6a0b6536f074e3a1bc41f0e35a80667688de9668cd1d75f6920a06e7607.exe
3824	powershell.exe
4216	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1632	f34fd6a0b6536f074e3a1bc41f0e35a80667688de9668cd1d75f6920a06e7607.exe
Token: SeDebugPrivilege	3824	powershell.exe
Token: SeDebugPrivilege	4216	powershell.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 1632 wrote to memory of 3824	1632	f34fd6a0b6536f074e3a1bc41f0e35a80667688de9668cd1d75f6920a06e7607.exe	94
PID 1632 wrote to memory of 3824	1632	f34fd6a0b6536f074e3a1bc41f0e35a80667688de9668cd1d75f6920a06e7607.exe	94
PID 1632 wrote to memory of 3824	1632	f34fd6a0b6536f074e3a1bc41f0e35a80667688de9668cd1d75f6920a06e7607.exe	94
PID 1632 wrote to memory of 4216	1632	f34fd6a0b6536f074e3a1bc41f0e35a80667688de9668cd1d75f6920a06e7607.exe	96
PID 1632 wrote to memory of 4216	1632	f34fd6a0b6536f074e3a1bc41f0e35a80667688de9668cd1d75f6920a06e7607.exe	96
PID 1632 wrote to memory of 4216	1632	f34fd6a0b6536f074e3a1bc41f0e35a80667688de9668cd1d75f6920a06e7607.exe	96
PID 1632 wrote to memory of 3784	1632	f34fd6a0b6536f074e3a1bc41f0e35a80667688de9668cd1d75f6920a06e7607.exe	98
PID 1632 wrote to memory of 3784	1632	f34fd6a0b6536f074e3a1bc41f0e35a80667688de9668cd1d75f6920a06e7607.exe	98
PID 1632 wrote to memory of 3784	1632	f34fd6a0b6536f074e3a1bc41f0e35a80667688de9668cd1d75f6920a06e7607.exe	98
PID 1632 wrote to memory of 1916	1632	f34fd6a0b6536f074e3a1bc41f0e35a80667688de9668cd1d75f6920a06e7607.exe	100
PID 1632 wrote to memory of 1916	1632	f34fd6a0b6536f074e3a1bc41f0e35a80667688de9668cd1d75f6920a06e7607.exe	100
PID 1632 wrote to memory of 1916	1632	f34fd6a0b6536f074e3a1bc41f0e35a80667688de9668cd1d75f6920a06e7607.exe	100
PID 1632 wrote to memory of 1916	1632	f34fd6a0b6536f074e3a1bc41f0e35a80667688de9668cd1d75f6920a06e7607.exe	100
PID 1632 wrote to memory of 1916	1632	f34fd6a0b6536f074e3a1bc41f0e35a80667688de9668cd1d75f6920a06e7607.exe	100
PID 1632 wrote to memory of 1916	1632	f34fd6a0b6536f074e3a1bc41f0e35a80667688de9668cd1d75f6920a06e7607.exe	100
PID 1632 wrote to memory of 1916	1632	f34fd6a0b6536f074e3a1bc41f0e35a80667688de9668cd1d75f6920a06e7607.exe	100
PID 1632 wrote to memory of 1916	1632	f34fd6a0b6536f074e3a1bc41f0e35a80667688de9668cd1d75f6920a06e7607.exe	100
PID 1632 wrote to memory of 1916	1632	f34fd6a0b6536f074e3a1bc41f0e35a80667688de9668cd1d75f6920a06e7607.exe	100
PID 1632 wrote to memory of 1916	1632	f34fd6a0b6536f074e3a1bc41f0e35a80667688de9668cd1d75f6920a06e7607.exe	100
PID 1632 wrote to memory of 1916	1632	f34fd6a0b6536f074e3a1bc41f0e35a80667688de9668cd1d75f6920a06e7607.exe	100
PID 1632 wrote to memory of 1916	1632	f34fd6a0b6536f074e3a1bc41f0e35a80667688de9668cd1d75f6920a06e7607.exe	100
PID 1916 wrote to memory of 4376	1916	MSBuild.exe	101
PID 1916 wrote to memory of 4376	1916	MSBuild.exe	101
PID 1916 wrote to memory of 4376	1916	MSBuild.exe	101

C:\Users\Admin\AppData\Local\Temp\f34fd6a0b6536f074e3a1bc41f0e35a80667688de9668cd1d75f6920a06e7607.exe
"C:\Users\Admin\AppData\Local\Temp\f34fd6a0b6536f074e3a1bc41f0e35a80667688de9668cd1d75f6920a06e7607.exe"
1⤵
- Checks computer location settings
- 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\Local\Temp\f34fd6a0b6536f074e3a1bc41f0e35a80667688de9668cd1d75f6920a06e7607.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3824
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\oJSnAkAh.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4216
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\oJSnAkAh" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC92C.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:3784
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:1916
- - C:\ProgramData\Remcos\remcos.exe
    "C:\ProgramData\Remcos\remcos.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:4376

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\ProgramData\Remcos\remcos.exe

Filesize
256KB

MD5
8fdf47e0ff70c40ed3a17014aeea4232

SHA1
e6256a0159688f0560b015da4d967f41cbf8c9bd

SHA256
ed9884bac608c06b7057037cc91d90e4ae5f74dd2dbce2af476699c6d4492d82

SHA512
bd69d092ed4f9c5e1f24eaf5ec79fb316469d53849dc798fae0fcba5e90869b77ee924c23cc6f692198ff25827ab60ad47bb46cadd6e0aadde7731cbafb013be

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
968cb9309758126772781b83adb8a28f

SHA1
8da30e71accf186b2ba11da1797cf67f8f78b47c

SHA256
92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

SHA512
4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
18KB

MD5
56e9e51dc53c74e2230c15db4dadf1ab

SHA1
085d3f1327ebb7f915c74450cf6bf8ab1036ce79

SHA256
550eb464516c6d033e77fc653484c7f581462d8e95b3e41d4a5cc935a0d544f1

SHA512
79ed6eea9f4a546d5730ea66613fb75093cb6b537ae0bdbd8ca7dc7a7ef970be5fc5eaea8553b4ea5caebb073d034422462c538f487ed79c23314585a026ef31

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_luksa0hf.xzz.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpC92C.tmp

Filesize
1KB

MD5
ab0e13c4ce0e9bf5a92c44b1b5b9a4a1

SHA1
b72e17581a347cf0517b7d4bed9b59a1d40a2b65

SHA256
8ce493767c83e9b32f886adb971527bf0b44c98c1059e9c780ae5e144cbf9c2d

SHA512
3ac463d57dd00379e1b75a25f71a1dfd4a77083331797f0f0dd10460ae21b5b5f144d5fb36a3c4080d88fe05f732d19a5e65503b548fe4618e46e2cef9ef4a22

Download Submit
memory/1632-4-0x0000000074870000-0x0000000075020000-memory.dmp

Filesize
7.7MB

Download
memory/1632-3-0x0000000005660000-0x00000000056F2000-memory.dmp

Filesize
584KB

Download
memory/1632-7-0x000000007487E000-0x000000007487F000-memory.dmp

Filesize
4KB

Download
memory/1632-8-0x0000000074870000-0x0000000075020000-memory.dmp

Filesize
7.7MB

Download
memory/1632-9-0x00000000068F0000-0x00000000069B0000-memory.dmp

Filesize
768KB

Download
memory/1632-10-0x0000000006BA0000-0x0000000006C3C000-memory.dmp

Filesize
624KB

Download
memory/1632-5-0x0000000005640000-0x000000000564A000-memory.dmp

Filesize
40KB

Download
memory/1632-6-0x0000000008370000-0x0000000008388000-memory.dmp

Filesize
96KB

Download
memory/1632-0-0x000000007487E000-0x000000007487F000-memory.dmp

Filesize
4KB

Download
memory/1632-2-0x0000000005C10000-0x00000000061B4000-memory.dmp

Filesize
5.6MB

Download
memory/1632-48-0x0000000074870000-0x0000000075020000-memory.dmp

Filesize
7.7MB

Download
memory/1632-1-0x0000000000B50000-0x0000000000C48000-memory.dmp

Filesize
992KB

Download
memory/1916-46-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1916-49-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3824-18-0x0000000074870000-0x0000000075020000-memory.dmp

Filesize
7.7MB

Download
memory/3824-52-0x0000000006230000-0x000000000624E000-memory.dmp

Filesize
120KB

Download
memory/3824-24-0x0000000005B60000-0x0000000005BC6000-memory.dmp

Filesize
408KB

Download
memory/3824-23-0x0000000005460000-0x0000000005482000-memory.dmp

Filesize
136KB

Download
memory/3824-36-0x0000000005C40000-0x0000000005F94000-memory.dmp

Filesize
3.3MB

Download
memory/3824-15-0x0000000002900000-0x0000000002936000-memory.dmp

Filesize
216KB

Download
memory/3824-16-0x0000000074870000-0x0000000075020000-memory.dmp

Filesize
7.7MB

Download
memory/3824-150-0x0000000074870000-0x0000000075020000-memory.dmp

Filesize
7.7MB

Download
memory/3824-19-0x0000000074870000-0x0000000075020000-memory.dmp

Filesize
7.7MB

Download
memory/3824-138-0x0000000007420000-0x00000000074C3000-memory.dmp

Filesize
652KB

Download
memory/3824-53-0x00000000062C0000-0x000000000630C000-memory.dmp

Filesize
304KB

Download
memory/3824-17-0x00000000054C0000-0x0000000005AE8000-memory.dmp

Filesize
6.2MB

Download
memory/3824-145-0x0000000007790000-0x00000000077A4000-memory.dmp

Filesize
80KB

Download
memory/3824-143-0x0000000007750000-0x0000000007761000-memory.dmp

Filesize
68KB

Download
memory/3824-141-0x00000000075C0000-0x00000000075CA000-memory.dmp

Filesize
40KB

Download
memory/3824-119-0x0000000071030000-0x000000007107C000-memory.dmp

Filesize
304KB

Download
memory/3824-140-0x0000000007550000-0x000000000756A000-memory.dmp

Filesize
104KB

Download
memory/3824-25-0x0000000005BD0000-0x0000000005C36000-memory.dmp

Filesize
408KB

Download
memory/3824-139-0x0000000007BA0000-0x000000000821A000-memory.dmp

Filesize
6.5MB

Download
memory/4216-117-0x0000000071030000-0x000000007107C000-memory.dmp

Filesize
304KB

Download
memory/4216-20-0x0000000074870000-0x0000000075020000-memory.dmp

Filesize
7.7MB

Download
memory/4216-137-0x0000000007330000-0x000000000734E000-memory.dmp

Filesize
120KB

Download
memory/4216-154-0x0000000074870000-0x0000000075020000-memory.dmp

Filesize
7.7MB

Download
memory/4216-142-0x0000000007750000-0x00000000077E6000-memory.dmp

Filesize
600KB

Download
memory/4216-26-0x0000000074870000-0x0000000075020000-memory.dmp

Filesize
7.7MB

Download
memory/4216-144-0x0000000007700000-0x000000000770E000-memory.dmp

Filesize
56KB

Download
memory/4216-21-0x0000000074870000-0x0000000075020000-memory.dmp

Filesize
7.7MB

Download
memory/4216-146-0x0000000007810000-0x000000000782A000-memory.dmp

Filesize
104KB

Download
memory/4216-147-0x00000000077F0000-0x00000000077F8000-memory.dmp

Filesize
32KB

Download
memory/4216-116-0x0000000007350000-0x0000000007382000-memory.dmp

Filesize
200KB

Download
memory/4376-114-0x0000000005510000-0x000000000566A000-memory.dmp

Filesize
1.4MB

Download
memory/4376-113-0x0000000005360000-0x000000000537A000-memory.dmp

Filesize
104KB

Download
memory/4376-112-0x0000000000CE0000-0x0000000000D20000-memory.dmp

Filesize
256KB

Download