remcos | b3a40331524394846d2782f1e52e1410ce1681283f8c715373bab73c84fa30ec

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
18-11-2024 17:09

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General

Target

5e0f540fbed81efe0941f8949498c92c.exe
Size

964KB
MD5

5e0f540fbed81efe0941f8949498c92c
SHA1

d2712dbb06910cd272d57ca6926f815f23dc2cad
SHA256

b3a40331524394846d2782f1e52e1410ce1681283f8c715373bab73c84fa30ec
SHA512

8bdd8fa363883e9243f1266fe7746ad201084303a20c3c74a604587766cf3c89681f940a44b298b7c52b01f389353547031a82936af8898236b5f4214e9f45a6
SSDEEP

24576:oMyNWpDUsl0uHw8LXqBlxZ1QZNAkvpnFDv0eiV:CmAg0uHyjZaP3frC

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

103.67.163.218:2298

Attributes

audio_folder
MicRecords
audio_path
ApplicationPath
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-HLZ36K
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
Remcos family
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

Processes:

powershell.exepowershell.exe

pid process

1504 powershell.exe
676 powershell.exe

pid	process
1504	powershell.exe
676	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

Processes:

5e0f540fbed81efe0941f8949498c92c.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	5e0f540fbed81efe0941f8949498c92c.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

5e0f540fbed81efe0941f8949498c92c.exe

description pid process target process

PID 4716 set thread context of 2988 4716 5e0f540fbed81efe0941f8949498c92c.exe 5e0f540fbed81efe0941f8949498c92c.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

description	pid	process	target process
PID 4716 set thread context of 2988	4716	5e0f540fbed81efe0941f8949498c92c.exe	5e0f540fbed81efe0941f8949498c92c.exe

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

Processes:

powershell.exepowershell.exeschtasks.exe5e0f540fbed81efe0941f8949498c92c.exe5e0f540fbed81efe0941f8949498c92c.exe

description	ioc	process
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	5e0f540fbed81efe0941f8949498c92c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5e0f540fbed81efe0941f8949498c92c.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

Processes:

schtasks.exe

pid process

3924 schtasks.exe

pid	process
3924	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

5e0f540fbed81efe0941f8949498c92c.exepowershell.exepowershell.exe

pid	process
4716	5e0f540fbed81efe0941f8949498c92c.exe
1504	powershell.exe
676	powershell.exe
4716	5e0f540fbed81efe0941f8949498c92c.exe
1504	powershell.exe
676	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

5e0f540fbed81efe0941f8949498c92c.exepowershell.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	4716	5e0f540fbed81efe0941f8949498c92c.exe
Token: SeDebugPrivilege	1504	powershell.exe
Token: SeDebugPrivilege	676	powershell.exe

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

5e0f540fbed81efe0941f8949498c92c.exe

description	pid	process	target process
PID 4716 wrote to memory of 1504	4716	5e0f540fbed81efe0941f8949498c92c.exe	powershell.exe
PID 4716 wrote to memory of 1504	4716	5e0f540fbed81efe0941f8949498c92c.exe	powershell.exe
PID 4716 wrote to memory of 1504	4716	5e0f540fbed81efe0941f8949498c92c.exe	powershell.exe
PID 4716 wrote to memory of 676	4716	5e0f540fbed81efe0941f8949498c92c.exe	powershell.exe
PID 4716 wrote to memory of 676	4716	5e0f540fbed81efe0941f8949498c92c.exe	powershell.exe
PID 4716 wrote to memory of 676	4716	5e0f540fbed81efe0941f8949498c92c.exe	powershell.exe
PID 4716 wrote to memory of 3924	4716	5e0f540fbed81efe0941f8949498c92c.exe	schtasks.exe
PID 4716 wrote to memory of 3924	4716	5e0f540fbed81efe0941f8949498c92c.exe	schtasks.exe
PID 4716 wrote to memory of 3924	4716	5e0f540fbed81efe0941f8949498c92c.exe	schtasks.exe
PID 4716 wrote to memory of 2988	4716	5e0f540fbed81efe0941f8949498c92c.exe	5e0f540fbed81efe0941f8949498c92c.exe
PID 4716 wrote to memory of 2988	4716	5e0f540fbed81efe0941f8949498c92c.exe	5e0f540fbed81efe0941f8949498c92c.exe
PID 4716 wrote to memory of 2988	4716	5e0f540fbed81efe0941f8949498c92c.exe	5e0f540fbed81efe0941f8949498c92c.exe
PID 4716 wrote to memory of 2988	4716	5e0f540fbed81efe0941f8949498c92c.exe	5e0f540fbed81efe0941f8949498c92c.exe
PID 4716 wrote to memory of 2988	4716	5e0f540fbed81efe0941f8949498c92c.exe	5e0f540fbed81efe0941f8949498c92c.exe
PID 4716 wrote to memory of 2988	4716	5e0f540fbed81efe0941f8949498c92c.exe	5e0f540fbed81efe0941f8949498c92c.exe
PID 4716 wrote to memory of 2988	4716	5e0f540fbed81efe0941f8949498c92c.exe	5e0f540fbed81efe0941f8949498c92c.exe
PID 4716 wrote to memory of 2988	4716	5e0f540fbed81efe0941f8949498c92c.exe	5e0f540fbed81efe0941f8949498c92c.exe
PID 4716 wrote to memory of 2988	4716	5e0f540fbed81efe0941f8949498c92c.exe	5e0f540fbed81efe0941f8949498c92c.exe
PID 4716 wrote to memory of 2988	4716	5e0f540fbed81efe0941f8949498c92c.exe	5e0f540fbed81efe0941f8949498c92c.exe

C:\Users\Admin\AppData\Local\Temp\5e0f540fbed81efe0941f8949498c92c.exe
"C:\Users\Admin\AppData\Local\Temp\5e0f540fbed81efe0941f8949498c92c.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:4716
- 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\5e0f540fbed81efe0941f8949498c92c.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1504
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\kQKXdTJmc.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:676
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\kQKXdTJmc" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF4C0.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:3924
- C:\Users\Admin\AppData\Local\Temp\5e0f540fbed81efe0941f8949498c92c.exe
  "C:\Users\Admin\AppData\Local\Temp\5e0f540fbed81efe0941f8949498c92c.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2988

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

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

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

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Downloads

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\Temp\__PSScriptPolicyTest_syjv515d.j2l.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpF4C0.tmp

Filesize
1KB

MD5
86aceb252b294019fce2ba8a47394b40

SHA1
49584152656f0c66a7c015bb2633c6a87b6817da

SHA256
ae7c6e6f9545e84c530f89a6f1a92fbf8b90363851b040e0989dae7abc00701f

SHA512
3fbdfc876eb27d0d3861c62a30df513861086a1c0f1983587fdce6e26335c34756787be8883c8196684686ffd501052381f119fb5414e6877533fc77f7db6d18

Download Submit
memory/676-88-0x0000000006FA0000-0x0000000006FB1000-memory.dmp

Filesize
68KB

Download
memory/676-19-0x00000000753A0000-0x0000000075B50000-memory.dmp

Filesize
7.7MB

Download
memory/676-96-0x00000000753A0000-0x0000000075B50000-memory.dmp

Filesize
7.7MB

Download
memory/676-92-0x00000000070C0000-0x00000000070C8000-memory.dmp

Filesize
32KB

Download
memory/676-90-0x0000000006FE0000-0x0000000006FF4000-memory.dmp

Filesize
80KB

Download
memory/676-87-0x0000000007020000-0x00000000070B6000-memory.dmp

Filesize
600KB

Download
memory/676-83-0x0000000006DA0000-0x0000000006DBA000-memory.dmp

Filesize
104KB

Download
memory/676-69-0x0000000075C30000-0x0000000075C7C000-memory.dmp

Filesize
304KB

Download
memory/676-31-0x00000000753A0000-0x0000000075B50000-memory.dmp

Filesize
7.7MB

Download
memory/676-22-0x00000000753A0000-0x0000000075B50000-memory.dmp

Filesize
7.7MB

Download
memory/1504-54-0x0000000006580000-0x000000000659E000-memory.dmp

Filesize
120KB

Download
memory/1504-34-0x0000000005F90000-0x00000000062E4000-memory.dmp

Filesize
3.3MB

Download
memory/1504-91-0x0000000007BE0000-0x0000000007BFA000-memory.dmp

Filesize
104KB

Download
memory/1504-17-0x00000000753A0000-0x0000000075B50000-memory.dmp

Filesize
7.7MB

Download
memory/1504-21-0x00000000753A0000-0x0000000075B50000-memory.dmp

Filesize
7.7MB

Download
memory/1504-16-0x00000000058F0000-0x0000000005F18000-memory.dmp

Filesize
6.2MB

Download
memory/1504-25-0x0000000005F20000-0x0000000005F86000-memory.dmp

Filesize
408KB

Download
memory/1504-89-0x0000000007AD0000-0x0000000007ADE000-memory.dmp

Filesize
56KB

Download
memory/1504-84-0x0000000007920000-0x000000000792A000-memory.dmp

Filesize
40KB

Download
memory/1504-58-0x0000000007760000-0x0000000007792000-memory.dmp

Filesize
200KB

Download
memory/1504-97-0x00000000753A0000-0x0000000075B50000-memory.dmp

Filesize
7.7MB

Download
memory/1504-23-0x00000000057B0000-0x00000000057D2000-memory.dmp

Filesize
136KB

Download
memory/1504-82-0x0000000007EF0000-0x000000000856A000-memory.dmp

Filesize
6.5MB

Download
memory/1504-15-0x0000000002C80000-0x0000000002CB6000-memory.dmp

Filesize
216KB

Download
memory/1504-80-0x00000000077A0000-0x0000000007843000-memory.dmp

Filesize
652KB

Download
memory/1504-18-0x00000000753A0000-0x0000000075B50000-memory.dmp

Filesize
7.7MB

Download
memory/1504-24-0x0000000005850000-0x00000000058B6000-memory.dmp

Filesize
408KB

Download
memory/1504-70-0x0000000006B40000-0x0000000006B5E000-memory.dmp

Filesize
120KB

Download
memory/1504-55-0x0000000006830000-0x000000000687C000-memory.dmp

Filesize
304KB

Download
memory/1504-59-0x0000000075C30000-0x0000000075C7C000-memory.dmp

Filesize
304KB

Download
memory/2988-33-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2988-57-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2988-102-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2988-103-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2988-28-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2988-56-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2988-29-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2988-81-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2988-104-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2988-105-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2988-26-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2988-101-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2988-100-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2988-27-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2988-99-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2988-106-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2988-98-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4716-10-0x0000000006D90000-0x0000000006E54000-memory.dmp

Filesize
784KB

Download
memory/4716-1-0x0000000000FB0000-0x00000000010A6000-memory.dmp

Filesize
984KB

Download
memory/4716-5-0x00000000753A0000-0x0000000075B50000-memory.dmp

Filesize
7.7MB

Download
memory/4716-6-0x0000000005D50000-0x0000000005DEC000-memory.dmp

Filesize
624KB

Download
memory/4716-7-0x0000000005D40000-0x0000000005D52000-memory.dmp

Filesize
72KB

Download
memory/4716-0-0x00000000753AE000-0x00000000753AF000-memory.dmp

Filesize
4KB

Download
memory/4716-8-0x00000000753AE000-0x00000000753AF000-memory.dmp

Filesize
4KB

Download
memory/4716-4-0x0000000005AC0000-0x0000000005ACA000-memory.dmp

Filesize
40KB

Download
memory/4716-9-0x00000000753A0000-0x0000000075B50000-memory.dmp

Filesize
7.7MB

Download
memory/4716-37-0x00000000753A0000-0x0000000075B50000-memory.dmp

Filesize
7.7MB

Download
memory/4716-2-0x00000000060D0000-0x0000000006674000-memory.dmp

Filesize
5.6MB

Download
memory/4716-3-0x0000000005B20000-0x0000000005BB2000-memory.dmp

Filesize
584KB

Download