remcos | e0d74fa44286f3a4c4c4c2fc151a339f487c2af644fb9691016dcf057b3bd343

Analysis

max time kernel
147s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
17-05-2024 02:02

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General

Target

e0d74fa44286f3a4c4c4c2fc151a339f487c2af644fb9691016dcf057b3bd343.exe
Size

1.1MB
MD5

a4df734fada4dec0bebcbbbed4e083ab
SHA1

283763090c6af71ef60d76b4515c9edebd416bcf
SHA256

e0d74fa44286f3a4c4c4c2fc151a339f487c2af644fb9691016dcf057b3bd343
SHA512

914b580fefa91d948a256c2f2ab39b18f36f631e7ff9c387888334521221466814af45bde59b59420c8eb6f22d0808afc6e27f3b562d5c495ab8b8a7666af637
SSDEEP

24576:bOp3fxqwcD01FUKer5zdzDarNhrBAJhDdiGXck5WZ7XZeLBmWlo:bOZOqbeDsBixy7XZsblo

Score

10^/10

remcos 76364 execution rat

Malware Config

Extracted

Family

remcos

Botnet

76364

103.150.8.12:5689

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
Rmc-FF0K7G
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

detects Windows exceutables potentially bypassing UAC using eventvwr.exe 17 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4752-21-0x0000000000400000-0x000000000047F000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
behavioral2/memory/4752-22-0x0000000000400000-0x000000000047F000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
behavioral2/memory/4752-25-0x0000000000400000-0x000000000047F000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
behavioral2/memory/4752-24-0x0000000000400000-0x000000000047F000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
behavioral2/memory/4752-30-0x0000000000400000-0x000000000047F000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
behavioral2/memory/4752-69-0x0000000000400000-0x000000000047F000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
behavioral2/memory/4752-70-0x0000000000400000-0x000000000047F000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
behavioral2/memory/4752-71-0x0000000000400000-0x000000000047F000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
behavioral2/memory/4752-72-0x0000000000400000-0x000000000047F000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
behavioral2/memory/4752-73-0x0000000000400000-0x000000000047F000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
behavioral2/memory/4752-74-0x0000000000400000-0x000000000047F000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
behavioral2/memory/4752-75-0x0000000000400000-0x000000000047F000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
behavioral2/memory/4752-76-0x0000000000400000-0x000000000047F000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
behavioral2/memory/4752-77-0x0000000000400000-0x000000000047F000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
behavioral2/memory/4752-78-0x0000000000400000-0x000000000047F000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
behavioral2/memory/4752-79-0x0000000000400000-0x000000000047F000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
behavioral2/memory/4752-80-0x0000000000400000-0x000000000047F000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer

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

Processes:

powershell.exe

pid process

4776 powershell.exe

pid	process
4776	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:

e0d74fa44286f3a4c4c4c2fc151a339f487c2af644fb9691016dcf057b3bd343.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000\Control Panel\International\Geo\Nation	e0d74fa44286f3a4c4c4c2fc151a339f487c2af644fb9691016dcf057b3bd343.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

e0d74fa44286f3a4c4c4c2fc151a339f487c2af644fb9691016dcf057b3bd343.exe

description	pid	process	target process
PID 1664 set thread context of 4752	1664	e0d74fa44286f3a4c4c4c2fc151a339f487c2af644fb9691016dcf057b3bd343.exe	e0d74fa44286f3a4c4c4c2fc151a339f487c2af644fb9691016dcf057b3bd343.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task/Job
T1053

Processes:

schtasks.exe

pid process

3388 schtasks.exe

pid	process
3388	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

e0d74fa44286f3a4c4c4c2fc151a339f487c2af644fb9691016dcf057b3bd343.exepowershell.exe

pid	process
1664	e0d74fa44286f3a4c4c4c2fc151a339f487c2af644fb9691016dcf057b3bd343.exe
1664	e0d74fa44286f3a4c4c4c2fc151a339f487c2af644fb9691016dcf057b3bd343.exe
1664	e0d74fa44286f3a4c4c4c2fc151a339f487c2af644fb9691016dcf057b3bd343.exe
1664	e0d74fa44286f3a4c4c4c2fc151a339f487c2af644fb9691016dcf057b3bd343.exe
4776	powershell.exe
4776	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

e0d74fa44286f3a4c4c4c2fc151a339f487c2af644fb9691016dcf057b3bd343.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	1664	e0d74fa44286f3a4c4c4c2fc151a339f487c2af644fb9691016dcf057b3bd343.exe
Token: SeDebugPrivilege	4776	powershell.exe

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

e0d74fa44286f3a4c4c4c2fc151a339f487c2af644fb9691016dcf057b3bd343.exe

C:\Users\Admin\AppData\Local\Temp\e0d74fa44286f3a4c4c4c2fc151a339f487c2af644fb9691016dcf057b3bd343.exe
"C:\Users\Admin\AppData\Local\Temp\e0d74fa44286f3a4c4c4c2fc151a339f487c2af644fb9691016dcf057b3bd343.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1664
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\tkoOXvlkbwis.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4776
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\tkoOXvlkbwis" /XML "C:\Users\Admin\AppData\Local\Temp\tmp59E7.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:3388
- C:\Users\Admin\AppData\Local\Temp\e0d74fa44286f3a4c4c4c2fc151a339f487c2af644fb9691016dcf057b3bd343.exe
  "C:\Users\Admin\AppData\Local\Temp\e0d74fa44286f3a4c4c4c2fc151a339f487c2af644fb9691016dcf057b3bd343.exe"
  2⤵
  PID:1524
- C:\Users\Admin\AppData\Local\Temp\e0d74fa44286f3a4c4c4c2fc151a339f487c2af644fb9691016dcf057b3bd343.exe
  "C:\Users\Admin\AppData\Local\Temp\e0d74fa44286f3a4c4c4c2fc151a339f487c2af644fb9691016dcf057b3bd343.exe"
  2⤵
  PID:4044
- C:\Users\Admin\AppData\Local\Temp\e0d74fa44286f3a4c4c4c2fc151a339f487c2af644fb9691016dcf057b3bd343.exe
  "C:\Users\Admin\AppData\Local\Temp\e0d74fa44286f3a4c4c4c2fc151a339f487c2af644fb9691016dcf057b3bd343.exe"
  2⤵
  PID:4752

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Persistence

Scheduled Task/Job

T1053

Privilege Escalation

Scheduled Task/Job

T1053

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_eyzup2xu.o0z.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp59E7.tmp

Filesize
1KB

MD5
387a85a655f6ff34c9a015aeed2bfe48

SHA1
96d61917090b73277bc0990474357ee3ad7ed699

SHA256
7ffa6a7df77d3ec13993b5fad5431fa1416f3a9498296cbb13a203feedad65c0

SHA512
38788f9024cb65243c0d58d6d0c2ec97f51ee86357382346986ecd7a6358c9816cfb9bac11e2d0342167a8dfa7db4db941a80229658d202a08af85487a3546c4

Download Submit
memory/1664-4-0x00000000055F0000-0x00000000055FA000-memory.dmp

Filesize
40KB

Download
memory/1664-3-0x0000000005A50000-0x0000000005FF4000-memory.dmp

Filesize
5.6MB

Download
memory/1664-1-0x0000000000930000-0x0000000000A48000-memory.dmp

Filesize
1.1MB

Download
memory/1664-5-0x00000000747C0000-0x0000000074F70000-memory.dmp

Filesize
7.7MB

Download
memory/1664-31-0x00000000747C0000-0x0000000074F70000-memory.dmp

Filesize
7.7MB

Download
memory/1664-7-0x00000000056E0000-0x00000000056FE000-memory.dmp

Filesize
120KB

Download
memory/1664-6-0x0000000006B70000-0x0000000006C50000-memory.dmp

Filesize
896KB

Download
memory/1664-8-0x00000000059A0000-0x00000000059B0000-memory.dmp

Filesize
64KB

Download
memory/1664-9-0x0000000006DA0000-0x0000000006E5E000-memory.dmp

Filesize
760KB

Download
memory/1664-10-0x00000000093B0000-0x000000000944C000-memory.dmp

Filesize
624KB

Download
memory/1664-2-0x00000000053E0000-0x0000000005472000-memory.dmp

Filesize
584KB

Download
memory/1664-0-0x00000000747CE000-0x00000000747CF000-memory.dmp

Filesize
4KB

Download
memory/4752-25-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4752-75-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4752-80-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4752-79-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4752-78-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4752-77-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4752-69-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4752-30-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4752-76-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4752-24-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4752-74-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4752-22-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4752-73-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4752-72-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4752-21-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4752-71-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4752-70-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4776-42-0x00000000058A0000-0x00000000058BE000-memory.dmp

Filesize
120KB

Download
memory/4776-45-0x0000000070FB0000-0x0000000070FFC000-memory.dmp

Filesize
304KB

Download
memory/4776-56-0x0000000007450000-0x00000000074F3000-memory.dmp

Filesize
652KB

Download
memory/4776-58-0x0000000007550000-0x000000000756A000-memory.dmp

Filesize
104KB

Download
memory/4776-57-0x0000000007B90000-0x000000000820A000-memory.dmp

Filesize
6.5MB

Download
memory/4776-59-0x00000000075C0000-0x00000000075CA000-memory.dmp

Filesize
40KB

Download
memory/4776-60-0x00000000077D0000-0x0000000007866000-memory.dmp

Filesize
600KB

Download
memory/4776-61-0x0000000007750000-0x0000000007761000-memory.dmp

Filesize
68KB

Download
memory/4776-62-0x0000000007780000-0x000000000778E000-memory.dmp

Filesize
56KB

Download
memory/4776-63-0x0000000007790000-0x00000000077A4000-memory.dmp

Filesize
80KB

Download
memory/4776-65-0x0000000007870000-0x0000000007878000-memory.dmp

Filesize
32KB

Download
memory/4776-64-0x0000000007890000-0x00000000078AA000-memory.dmp

Filesize
104KB

Download
memory/4776-68-0x00000000747C0000-0x0000000074F70000-memory.dmp

Filesize
7.7MB

Download
memory/4776-55-0x0000000006800000-0x000000000681E000-memory.dmp

Filesize
120KB

Download
memory/4776-44-0x0000000007410000-0x0000000007442000-memory.dmp

Filesize
200KB

Download
memory/4776-43-0x00000000062C0000-0x000000000630C000-memory.dmp

Filesize
304KB

Download
memory/4776-41-0x0000000005F00000-0x0000000006254000-memory.dmp

Filesize
3.3MB

Download
memory/4776-27-0x0000000002D40000-0x0000000002D62000-memory.dmp

Filesize
136KB

Download
memory/4776-28-0x0000000005310000-0x0000000005376000-memory.dmp

Filesize
408KB

Download
memory/4776-29-0x0000000005380000-0x00000000053E6000-memory.dmp

Filesize
408KB

Download
memory/4776-20-0x00000000747C0000-0x0000000074F70000-memory.dmp

Filesize
7.7MB

Download
memory/4776-19-0x00000000747C0000-0x0000000074F70000-memory.dmp

Filesize
7.7MB

Download
memory/4776-18-0x00000000058D0000-0x0000000005EF8000-memory.dmp

Filesize
6.2MB

Download
memory/4776-17-0x00000000747C0000-0x0000000074F70000-memory.dmp

Filesize
7.7MB

Download
memory/4776-15-0x0000000001030000-0x0000000001066000-memory.dmp

Filesize
216KB

Download

description	pid	process	target process
PID 1664 wrote to memory of 4776	1664	e0d74fa44286f3a4c4c4c2fc151a339f487c2af644fb9691016dcf057b3bd343.exe	powershell.exe
PID 1664 wrote to memory of 4776	1664	e0d74fa44286f3a4c4c4c2fc151a339f487c2af644fb9691016dcf057b3bd343.exe	powershell.exe
PID 1664 wrote to memory of 4776	1664	e0d74fa44286f3a4c4c4c2fc151a339f487c2af644fb9691016dcf057b3bd343.exe	powershell.exe
PID 1664 wrote to memory of 3388	1664	e0d74fa44286f3a4c4c4c2fc151a339f487c2af644fb9691016dcf057b3bd343.exe	schtasks.exe
PID 1664 wrote to memory of 3388	1664	e0d74fa44286f3a4c4c4c2fc151a339f487c2af644fb9691016dcf057b3bd343.exe	schtasks.exe
PID 1664 wrote to memory of 3388	1664	e0d74fa44286f3a4c4c4c2fc151a339f487c2af644fb9691016dcf057b3bd343.exe	schtasks.exe
PID 1664 wrote to memory of 1524	1664	e0d74fa44286f3a4c4c4c2fc151a339f487c2af644fb9691016dcf057b3bd343.exe	e0d74fa44286f3a4c4c4c2fc151a339f487c2af644fb9691016dcf057b3bd343.exe
PID 1664 wrote to memory of 1524	1664	e0d74fa44286f3a4c4c4c2fc151a339f487c2af644fb9691016dcf057b3bd343.exe	e0d74fa44286f3a4c4c4c2fc151a339f487c2af644fb9691016dcf057b3bd343.exe
PID 1664 wrote to memory of 1524	1664	e0d74fa44286f3a4c4c4c2fc151a339f487c2af644fb9691016dcf057b3bd343.exe	e0d74fa44286f3a4c4c4c2fc151a339f487c2af644fb9691016dcf057b3bd343.exe
PID 1664 wrote to memory of 4044	1664	e0d74fa44286f3a4c4c4c2fc151a339f487c2af644fb9691016dcf057b3bd343.exe	e0d74fa44286f3a4c4c4c2fc151a339f487c2af644fb9691016dcf057b3bd343.exe
PID 1664 wrote to memory of 4044	1664	e0d74fa44286f3a4c4c4c2fc151a339f487c2af644fb9691016dcf057b3bd343.exe	e0d74fa44286f3a4c4c4c2fc151a339f487c2af644fb9691016dcf057b3bd343.exe
PID 1664 wrote to memory of 4044	1664	e0d74fa44286f3a4c4c4c2fc151a339f487c2af644fb9691016dcf057b3bd343.exe	e0d74fa44286f3a4c4c4c2fc151a339f487c2af644fb9691016dcf057b3bd343.exe
PID 1664 wrote to memory of 4752	1664	e0d74fa44286f3a4c4c4c2fc151a339f487c2af644fb9691016dcf057b3bd343.exe	e0d74fa44286f3a4c4c4c2fc151a339f487c2af644fb9691016dcf057b3bd343.exe
PID 1664 wrote to memory of 4752	1664	e0d74fa44286f3a4c4c4c2fc151a339f487c2af644fb9691016dcf057b3bd343.exe	e0d74fa44286f3a4c4c4c2fc151a339f487c2af644fb9691016dcf057b3bd343.exe
PID 1664 wrote to memory of 4752	1664	e0d74fa44286f3a4c4c4c2fc151a339f487c2af644fb9691016dcf057b3bd343.exe	e0d74fa44286f3a4c4c4c2fc151a339f487c2af644fb9691016dcf057b3bd343.exe
PID 1664 wrote to memory of 4752	1664	e0d74fa44286f3a4c4c4c2fc151a339f487c2af644fb9691016dcf057b3bd343.exe	e0d74fa44286f3a4c4c4c2fc151a339f487c2af644fb9691016dcf057b3bd343.exe
PID 1664 wrote to memory of 4752	1664	e0d74fa44286f3a4c4c4c2fc151a339f487c2af644fb9691016dcf057b3bd343.exe	e0d74fa44286f3a4c4c4c2fc151a339f487c2af644fb9691016dcf057b3bd343.exe
PID 1664 wrote to memory of 4752	1664	e0d74fa44286f3a4c4c4c2fc151a339f487c2af644fb9691016dcf057b3bd343.exe	e0d74fa44286f3a4c4c4c2fc151a339f487c2af644fb9691016dcf057b3bd343.exe
PID 1664 wrote to memory of 4752	1664	e0d74fa44286f3a4c4c4c2fc151a339f487c2af644fb9691016dcf057b3bd343.exe	e0d74fa44286f3a4c4c4c2fc151a339f487c2af644fb9691016dcf057b3bd343.exe
PID 1664 wrote to memory of 4752	1664	e0d74fa44286f3a4c4c4c2fc151a339f487c2af644fb9691016dcf057b3bd343.exe	e0d74fa44286f3a4c4c4c2fc151a339f487c2af644fb9691016dcf057b3bd343.exe
PID 1664 wrote to memory of 4752	1664	e0d74fa44286f3a4c4c4c2fc151a339f487c2af644fb9691016dcf057b3bd343.exe	e0d74fa44286f3a4c4c4c2fc151a339f487c2af644fb9691016dcf057b3bd343.exe
PID 1664 wrote to memory of 4752	1664	e0d74fa44286f3a4c4c4c2fc151a339f487c2af644fb9691016dcf057b3bd343.exe	e0d74fa44286f3a4c4c4c2fc151a339f487c2af644fb9691016dcf057b3bd343.exe
PID 1664 wrote to memory of 4752	1664	e0d74fa44286f3a4c4c4c2fc151a339f487c2af644fb9691016dcf057b3bd343.exe	e0d74fa44286f3a4c4c4c2fc151a339f487c2af644fb9691016dcf057b3bd343.exe
PID 1664 wrote to memory of 4752	1664	e0d74fa44286f3a4c4c4c2fc151a339f487c2af644fb9691016dcf057b3bd343.exe	e0d74fa44286f3a4c4c4c2fc151a339f487c2af644fb9691016dcf057b3bd343.exe