remcos | d9a26a4a2ef5792ed0d14f1f4534f53bb3165bd0eeeb35aa5ac5a06e5e31f322

Analysis

max time kernel
148s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
21-11-2024 08:24

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

Santander.UK.Payment.exe
Size

1.2MB
MD5

7af4a0f6896485fdc27f4790b6d3ec84
SHA1

a720679224ac7c6c6a194dd8f4a52cdc41386fe3
SHA256

1149a510d17d6978374310d23ebc0ec88d415c38a64ef8063af41cb0d882d56c
SHA512

7626c9fd3047e8579187056ccd4cb6394e4c399bd830eaa0ed8504ee95366931d15148dbb6a92a482a51df5e1c0aa25ade58cca9b1f3052ce534de6b79c13b2b
SSDEEP

24576:grOrP0zHczxWOPV4vu/kXtjpjWZ7R6Yy+Z7uMyeB:kzHqWm4vbXlMN0iZJyk

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

162.251.122.76:7119

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-P2SX34
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
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

pid	Process
3512	powershell.exe
5076	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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	Santander.UK.Payment.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3852 set thread context of 1480	3852	Santander.UK.Payment.exe	103

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 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

description	ioc	Process
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	Santander.UK.Payment.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Santander.UK.Payment.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.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
4092	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
3852	Santander.UK.Payment.exe
3852	Santander.UK.Payment.exe
3852	Santander.UK.Payment.exe
5076	powershell.exe
3512	powershell.exe
3852	Santander.UK.Payment.exe
5076	powershell.exe
3512	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3852	Santander.UK.Payment.exe
Token: SeDebugPrivilege	5076	powershell.exe
Token: SeDebugPrivilege	3512	powershell.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 3852 wrote to memory of 3512	3852	Santander.UK.Payment.exe	97
PID 3852 wrote to memory of 3512	3852	Santander.UK.Payment.exe	97
PID 3852 wrote to memory of 3512	3852	Santander.UK.Payment.exe	97
PID 3852 wrote to memory of 5076	3852	Santander.UK.Payment.exe	99
PID 3852 wrote to memory of 5076	3852	Santander.UK.Payment.exe	99
PID 3852 wrote to memory of 5076	3852	Santander.UK.Payment.exe	99
PID 3852 wrote to memory of 4092	3852	Santander.UK.Payment.exe	101
PID 3852 wrote to memory of 4092	3852	Santander.UK.Payment.exe	101
PID 3852 wrote to memory of 4092	3852	Santander.UK.Payment.exe	101
PID 3852 wrote to memory of 1480	3852	Santander.UK.Payment.exe	103
PID 3852 wrote to memory of 1480	3852	Santander.UK.Payment.exe	103
PID 3852 wrote to memory of 1480	3852	Santander.UK.Payment.exe	103
PID 3852 wrote to memory of 1480	3852	Santander.UK.Payment.exe	103
PID 3852 wrote to memory of 1480	3852	Santander.UK.Payment.exe	103
PID 3852 wrote to memory of 1480	3852	Santander.UK.Payment.exe	103
PID 3852 wrote to memory of 1480	3852	Santander.UK.Payment.exe	103
PID 3852 wrote to memory of 1480	3852	Santander.UK.Payment.exe	103
PID 3852 wrote to memory of 1480	3852	Santander.UK.Payment.exe	103
PID 3852 wrote to memory of 1480	3852	Santander.UK.Payment.exe	103
PID 3852 wrote to memory of 1480	3852	Santander.UK.Payment.exe	103
PID 3852 wrote to memory of 1480	3852	Santander.UK.Payment.exe	103

C:\Users\Admin\AppData\Local\Temp\Santander.UK.Payment.exe
"C:\Users\Admin\AppData\Local\Temp\Santander.UK.Payment.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:3852
- 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\Santander.UK.Payment.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3512
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\AKkvgTPhySV.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:5076
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\AKkvgTPhySV" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFE36.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:4092
- C:\Users\Admin\AppData\Local\Temp\Santander.UK.Payment.exe
  "C:\Users\Admin\AppData\Local\Temp\Santander.UK.Payment.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1480

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_sr4pnmhx.n4y.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpFE36.tmp

Filesize
1KB

MD5
b9db9cdeb6df960534412f66c19d2f70

SHA1
c020e88739f74350cc0a160a6495283b7f754ab7

SHA256
8c4e25d1fa73082e0b3436a87ef65f41dba6d3ef2255303a697955afbcf4c603

SHA512
732fe20b7122dcfbe4445d2ee0e04d5610b3b49ad53e659b045f1d375cdb563e0fdb742cc5bc1be519d87b80517a7e5e918f663e3d89588078dcc9e969782511

Download Submit
memory/1480-96-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1480-81-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1480-99-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1480-97-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1480-98-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1480-95-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1480-41-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1480-100-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1480-56-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1480-54-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1480-55-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1480-101-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1480-24-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1480-46-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1480-102-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1480-47-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3512-22-0x0000000074740000-0x0000000074EF0000-memory.dmp

Filesize
7.7MB

Download
memory/3512-17-0x0000000074740000-0x0000000074EF0000-memory.dmp

Filesize
7.7MB

Download
memory/3512-51-0x0000000074740000-0x0000000074EF0000-memory.dmp

Filesize
7.7MB

Download
memory/3512-94-0x0000000074740000-0x0000000074EF0000-memory.dmp

Filesize
7.7MB

Download
memory/3512-88-0x0000000007420000-0x0000000007434000-memory.dmp

Filesize
80KB

Download
memory/3512-90-0x0000000007500000-0x0000000007508000-memory.dmp

Filesize
32KB

Download
memory/3512-89-0x0000000007520000-0x000000000753A000-memory.dmp

Filesize
104KB

Download
memory/3512-21-0x00000000056E0000-0x0000000005746000-memory.dmp

Filesize
408KB

Download
memory/3512-68-0x0000000074FD0000-0x000000007501C000-memory.dmp

Filesize
304KB

Download
memory/3512-83-0x0000000007830000-0x0000000007EAA000-memory.dmp

Filesize
6.5MB

Download
memory/3512-16-0x0000000005040000-0x0000000005668000-memory.dmp

Filesize
6.2MB

Download
memory/3512-15-0x00000000025C0000-0x00000000025F6000-memory.dmp

Filesize
216KB

Download
memory/3512-19-0x0000000004F00000-0x0000000004F22000-memory.dmp

Filesize
136KB

Download
memory/3512-20-0x0000000004FA0000-0x0000000005006000-memory.dmp

Filesize
408KB

Download
memory/3852-7-0x0000000005BB0000-0x0000000005BC2000-memory.dmp

Filesize
72KB

Download
memory/3852-1-0x0000000000ED0000-0x0000000001000000-memory.dmp

Filesize
1.2MB

Download
memory/3852-0-0x000000007474E000-0x000000007474F000-memory.dmp

Filesize
4KB

Download
memory/3852-9-0x0000000074740000-0x0000000074EF0000-memory.dmp

Filesize
7.7MB

Download
memory/3852-2-0x0000000005FB0000-0x0000000006554000-memory.dmp

Filesize
5.6MB

Download
memory/3852-6-0x0000000005CA0000-0x0000000005D3C000-memory.dmp

Filesize
624KB

Download
memory/3852-5-0x00000000059C0000-0x00000000059CA000-memory.dmp

Filesize
40KB

Download
memory/3852-4-0x0000000074740000-0x0000000074EF0000-memory.dmp

Filesize
7.7MB

Download
memory/3852-10-0x0000000006D60000-0x0000000006E20000-memory.dmp

Filesize
768KB

Download
memory/3852-8-0x000000007474E000-0x000000007474F000-memory.dmp

Filesize
4KB

Download
memory/3852-49-0x0000000074740000-0x0000000074EF0000-memory.dmp

Filesize
7.7MB

Download
memory/3852-3-0x0000000005A00000-0x0000000005A92000-memory.dmp

Filesize
584KB

Download
memory/5076-85-0x0000000007F00000-0x0000000007F96000-memory.dmp

Filesize
600KB

Download
memory/5076-93-0x0000000074740000-0x0000000074EF0000-memory.dmp

Filesize
7.7MB

Download
memory/5076-48-0x0000000074740000-0x0000000074EF0000-memory.dmp

Filesize
7.7MB

Download
memory/5076-50-0x0000000074740000-0x0000000074EF0000-memory.dmp

Filesize
7.7MB

Download
memory/5076-52-0x0000000006960000-0x000000000697E000-memory.dmp

Filesize
120KB

Download
memory/5076-53-0x0000000006A30000-0x0000000006A7C000-memory.dmp

Filesize
304KB

Download
memory/5076-58-0x0000000074FD0000-0x000000007501C000-memory.dmp

Filesize
304KB

Download
memory/5076-57-0x0000000006F30000-0x0000000006F62000-memory.dmp

Filesize
200KB

Download
memory/5076-86-0x0000000007E80000-0x0000000007E91000-memory.dmp

Filesize
68KB

Download
memory/5076-25-0x0000000074740000-0x0000000074EF0000-memory.dmp

Filesize
7.7MB

Download
memory/5076-79-0x0000000007B30000-0x0000000007BD3000-memory.dmp

Filesize
652KB

Download
memory/5076-82-0x0000000007C80000-0x0000000007C9A000-memory.dmp

Filesize
104KB

Download
memory/5076-84-0x0000000007D00000-0x0000000007D0A000-memory.dmp

Filesize
40KB

Download
memory/5076-87-0x0000000007EC0000-0x0000000007ECE000-memory.dmp

Filesize
56KB

Download
memory/5076-23-0x0000000006340000-0x0000000006694000-memory.dmp

Filesize
3.3MB

Download
memory/5076-69-0x0000000006F10000-0x0000000006F2E000-memory.dmp

Filesize
120KB

Download