remcos | 9bab6645fcdf0b227951503269cc6606b28ce3da83e7fabdcece821d40b8d089

Analysis

max time kernel
149s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
27-09-2024 02:58

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General

Target

quote list.exe
Size

869KB
MD5

d015c17dca0c59e602fe84a228e39a22
SHA1

2e8bdba65c967be5f8be70e30518ead644be0977
SHA256

915b501be529cba600bb05585f9206277972284e1bdac44094d256fd01b9da46
SHA512

293b625d8072249e08036876487a43efe80896d72c759bd0d2e2a40cdf44683a7afaa5ed0c16289fde67dd89e334cad9c772c44e1078909b41b4b09cdb56c6cd
SSDEEP

12288:ynKzK2l5btpicIKvL9JYNqt63GBJe0q3Ax7j3HiC6TpOIBl5c39WFac+brKQajeL:yKuQPIS9JYE63ienG7jTI929WiKaL

Score

10^/10

remcos 3456789 discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

3456789

172.93.220.148:45682

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
765-8M14I5
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

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
2548	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-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation	quote list.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3056 set thread context of 4124	3056	quote list.exe	92

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	quote list.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	quote list.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
4720	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3056	quote list.exe
3056	quote list.exe
2548	powershell.exe
2548	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3056	quote list.exe
Token: SeDebugPrivilege	2548	powershell.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 3056 wrote to memory of 2548	3056	quote list.exe	87
PID 3056 wrote to memory of 2548	3056	quote list.exe	87
PID 3056 wrote to memory of 2548	3056	quote list.exe	87
PID 3056 wrote to memory of 4720	3056	quote list.exe	89
PID 3056 wrote to memory of 4720	3056	quote list.exe	89
PID 3056 wrote to memory of 4720	3056	quote list.exe	89
PID 3056 wrote to memory of 2092	3056	quote list.exe	91
PID 3056 wrote to memory of 2092	3056	quote list.exe	91
PID 3056 wrote to memory of 2092	3056	quote list.exe	91
PID 3056 wrote to memory of 4124	3056	quote list.exe	92
PID 3056 wrote to memory of 4124	3056	quote list.exe	92
PID 3056 wrote to memory of 4124	3056	quote list.exe	92
PID 3056 wrote to memory of 4124	3056	quote list.exe	92
PID 3056 wrote to memory of 4124	3056	quote list.exe	92
PID 3056 wrote to memory of 4124	3056	quote list.exe	92
PID 3056 wrote to memory of 4124	3056	quote list.exe	92
PID 3056 wrote to memory of 4124	3056	quote list.exe	92
PID 3056 wrote to memory of 4124	3056	quote list.exe	92
PID 3056 wrote to memory of 4124	3056	quote list.exe	92
PID 3056 wrote to memory of 4124	3056	quote list.exe	92
PID 3056 wrote to memory of 4124	3056	quote list.exe	92

C:\Users\Admin\AppData\Local\Temp\quote list.exe
"C:\Users\Admin\AppData\Local\Temp\quote list.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:3056
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\RPwgSSbfZvt.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2548
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\RPwgSSbfZvt" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAA78.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:4720
- C:\Users\Admin\AppData\Local\Temp\quote list.exe
  "C:\Users\Admin\AppData\Local\Temp\quote list.exe"
  2⤵
  PID:2092
- C:\Users\Admin\AppData\Local\Temp\quote list.exe
  "C:\Users\Admin\AppData\Local\Temp\quote list.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4124

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\Temp\__PSScriptPolicyTest_xallujqu.34r.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpAA78.tmp

Filesize
1KB

MD5
cb07b019b881dd2e61bc6ba83c0507d5

SHA1
00e9562c2381dbd37abbf31cb41daddd562a0163

SHA256
e56ff6653f216ee7496a57a8c2e4c8e4c7d1a64cccf55d827e8fcc072aafa83f

SHA512
a70fbaa35f6a5bb3c56391e923420f7ef4ddfef0e81d903479c33dbb5125d9c9d3b621b4caced6f627e05f189e372eb4a35729e1107f23c60e1fa12bc0c55ad5

Download Submit
memory/2548-65-0x0000000007C50000-0x0000000007C61000-memory.dmp

Filesize
68KB

Download
memory/2548-66-0x0000000007C80000-0x0000000007C8E000-memory.dmp

Filesize
56KB

Download
memory/2548-72-0x0000000074EB0000-0x0000000075660000-memory.dmp

Filesize
7.7MB

Download
memory/2548-69-0x0000000007D70000-0x0000000007D78000-memory.dmp

Filesize
32KB

Download
memory/2548-68-0x0000000007D90000-0x0000000007DAA000-memory.dmp

Filesize
104KB

Download
memory/2548-67-0x0000000007C90000-0x0000000007CA4000-memory.dmp

Filesize
80KB

Download
memory/2548-64-0x0000000007CD0000-0x0000000007D66000-memory.dmp

Filesize
600KB

Download
memory/2548-63-0x0000000007AC0000-0x0000000007ACA000-memory.dmp

Filesize
40KB

Download
memory/2548-61-0x0000000008090000-0x000000000870A000-memory.dmp

Filesize
6.5MB

Download
memory/2548-60-0x0000000007720000-0x00000000077C3000-memory.dmp

Filesize
652KB

Download
memory/2548-15-0x0000000002E30000-0x0000000002E66000-memory.dmp

Filesize
216KB

Download
memory/2548-17-0x0000000074EB0000-0x0000000075660000-memory.dmp

Filesize
7.7MB

Download
memory/2548-18-0x0000000005830000-0x0000000005E58000-memory.dmp

Filesize
6.2MB

Download
memory/2548-59-0x0000000006D00000-0x0000000006D1E000-memory.dmp

Filesize
120KB

Download
memory/2548-49-0x0000000071140000-0x000000007118C000-memory.dmp

Filesize
304KB

Download
memory/2548-48-0x00000000076E0000-0x0000000007712000-memory.dmp

Filesize
200KB

Download
memory/2548-47-0x0000000006920000-0x000000000696C000-memory.dmp

Filesize
304KB

Download
memory/2548-46-0x0000000006720000-0x000000000673E000-memory.dmp

Filesize
120KB

Download
memory/2548-26-0x0000000074EB0000-0x0000000075660000-memory.dmp

Filesize
7.7MB

Download
memory/2548-29-0x0000000005E60000-0x0000000005EC6000-memory.dmp

Filesize
408KB

Download
memory/2548-30-0x0000000005ED0000-0x0000000005F36000-memory.dmp

Filesize
408KB

Download
memory/2548-62-0x0000000007A50000-0x0000000007A6A000-memory.dmp

Filesize
104KB

Download
memory/2548-28-0x0000000005780000-0x00000000057A2000-memory.dmp

Filesize
136KB

Download
memory/2548-40-0x00000000060E0000-0x0000000006434000-memory.dmp

Filesize
3.3MB

Download
memory/2548-19-0x0000000074EB0000-0x0000000075660000-memory.dmp

Filesize
7.7MB

Download
memory/3056-0-0x0000000074EBE000-0x0000000074EBF000-memory.dmp

Filesize
4KB

Download
memory/3056-9-0x0000000007100000-0x00000000071BE000-memory.dmp

Filesize
760KB

Download
memory/3056-8-0x0000000074EB0000-0x0000000075660000-memory.dmp

Filesize
7.7MB

Download
memory/3056-1-0x0000000000B80000-0x0000000000C60000-memory.dmp

Filesize
896KB

Download
memory/3056-5-0x0000000005700000-0x000000000570A000-memory.dmp

Filesize
40KB

Download
memory/3056-27-0x0000000074EB0000-0x0000000075660000-memory.dmp

Filesize
7.7MB

Download
memory/3056-4-0x0000000074EB0000-0x0000000075660000-memory.dmp

Filesize
7.7MB

Download
memory/3056-6-0x00000000058C0000-0x00000000058D0000-memory.dmp

Filesize
64KB

Download
memory/3056-7-0x0000000074EBE000-0x0000000074EBF000-memory.dmp

Filesize
4KB

Download
memory/3056-3-0x0000000005630000-0x00000000056C2000-memory.dmp

Filesize
584KB

Download
memory/3056-2-0x0000000005CE0000-0x0000000006284000-memory.dmp

Filesize
5.6MB

Download
memory/3056-10-0x00000000097D0000-0x000000000986C000-memory.dmp

Filesize
624KB

Download
memory/4124-81-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4124-73-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4124-43-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4124-24-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4124-21-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4124-20-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4124-23-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4124-25-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4124-45-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4124-41-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4124-74-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4124-75-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4124-76-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4124-77-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4124-78-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4124-42-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4124-80-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4124-79-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download