remcos | d9a26a4a2ef5792ed0d14f1f4534f53bb3165bd0eeeb35aa5ac5a06e5e31f322

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

C2

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
2448	powershell.exe
2420	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2796 set thread context of 2464	2796	Santander.UK.Payment.exe	35

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	Santander.UK.Payment.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	Santander.UK.Payment.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
2452	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2796	Santander.UK.Payment.exe
2796	Santander.UK.Payment.exe
2796	Santander.UK.Payment.exe
2796	Santander.UK.Payment.exe
2420	powershell.exe
2448	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2796	Santander.UK.Payment.exe
Token: SeDebugPrivilege	2448	powershell.exe
Token: SeDebugPrivilege	2420	powershell.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 2796 wrote to memory of 2420	2796	Santander.UK.Payment.exe	29
PID 2796 wrote to memory of 2420	2796	Santander.UK.Payment.exe	29
PID 2796 wrote to memory of 2420	2796	Santander.UK.Payment.exe	29
PID 2796 wrote to memory of 2420	2796	Santander.UK.Payment.exe	29
PID 2796 wrote to memory of 2448	2796	Santander.UK.Payment.exe	31
PID 2796 wrote to memory of 2448	2796	Santander.UK.Payment.exe	31
PID 2796 wrote to memory of 2448	2796	Santander.UK.Payment.exe	31
PID 2796 wrote to memory of 2448	2796	Santander.UK.Payment.exe	31
PID 2796 wrote to memory of 2452	2796	Santander.UK.Payment.exe	33
PID 2796 wrote to memory of 2452	2796	Santander.UK.Payment.exe	33
PID 2796 wrote to memory of 2452	2796	Santander.UK.Payment.exe	33
PID 2796 wrote to memory of 2452	2796	Santander.UK.Payment.exe	33
PID 2796 wrote to memory of 2464	2796	Santander.UK.Payment.exe	35
PID 2796 wrote to memory of 2464	2796	Santander.UK.Payment.exe	35
PID 2796 wrote to memory of 2464	2796	Santander.UK.Payment.exe	35
PID 2796 wrote to memory of 2464	2796	Santander.UK.Payment.exe	35
PID 2796 wrote to memory of 2464	2796	Santander.UK.Payment.exe	35
PID 2796 wrote to memory of 2464	2796	Santander.UK.Payment.exe	35
PID 2796 wrote to memory of 2464	2796	Santander.UK.Payment.exe	35
PID 2796 wrote to memory of 2464	2796	Santander.UK.Payment.exe	35
PID 2796 wrote to memory of 2464	2796	Santander.UK.Payment.exe	35
PID 2796 wrote to memory of 2464	2796	Santander.UK.Payment.exe	35
PID 2796 wrote to memory of 2464	2796	Santander.UK.Payment.exe	35
PID 2796 wrote to memory of 2464	2796	Santander.UK.Payment.exe	35
PID 2796 wrote to memory of 2464	2796	Santander.UK.Payment.exe	35

C:\Users\Admin\AppData\Local\Temp\Santander.UK.Payment.exe
"C:\Users\Admin\AppData\Local\Temp\Santander.UK.Payment.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2796
- 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:2420
- 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:2448
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\AKkvgTPhySV" /XML "C:\Users\Admin\AppData\Local\Temp\tmp64FA.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2452
- 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:2464

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp64FA.tmp

Filesize
1KB

MD5
5fdf692c98e190c02e470ef6c300da6b

SHA1
797374da84144a7ff675ef64b3f1b7b26cbfc676

SHA256
f7f54488953b3d29aa4d78206057eb7338f619f05766399e91e7a682e452a096

SHA512
3b42a1bbe88d4167c0c0d55e062e93e2fdd592fff8abe24cacf65a4369c41e3136bb30e6500064ef91320abe98f65d406ccf8edcff483998a2d2dba9d5fe9bbc

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\UTZF16XRV8ROCPKGW7FU.temp

Filesize
7KB

MD5
5a63689db6c16b17bdaace6724abe166

SHA1
1e7c343437039a6b2b1779746723b5eafc39636c

SHA256
037c7b6b135edf4c19fa57650d37c99c991a4581efc0d75955f6d62742d5e527

SHA512
e504db994ca8c1ae7c7322097a7784f4e2552f3a0cd56d8d245da6b53e605d94954708ccda07c6e7a1e717129a534bc955d29f4d0e8f6d7f8f81cb6d6313978a

Download Submit
memory/2464-42-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2464-22-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2464-52-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2464-51-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2464-49-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2464-32-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2464-50-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2464-36-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2464-35-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2464-34-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2464-31-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2464-28-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2464-38-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2464-27-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2464-47-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2464-37-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2464-18-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2464-20-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2464-24-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2464-48-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2464-41-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2464-40-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2464-45-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2464-46-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2796-0-0x000000007443E000-0x000000007443F000-memory.dmp

Filesize
4KB

Download
memory/2796-1-0x0000000000AB0000-0x0000000000BE0000-memory.dmp

Filesize
1.2MB

Download
memory/2796-3-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2796-39-0x0000000074430000-0x0000000074B1E000-memory.dmp

Filesize
6.9MB

Download
memory/2796-2-0x0000000074430000-0x0000000074B1E000-memory.dmp

Filesize
6.9MB

Download
memory/2796-5-0x00000000047E0000-0x00000000048A0000-memory.dmp

Filesize
768KB

Download
memory/2796-4-0x0000000074430000-0x0000000074B1E000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads