remcos | 9266e7c60ee4abd1b415a2ca3273d0a9d83547807f610565ca964065fa0aac14

Analysis

max time kernel
147s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
10-10-2024 07:02

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General

Target

DHLAWBDOCS-9284730932.exe
Size

1.0MB
MD5

d781792d361fd943400e62fd653d3e4a
SHA1

37199a0c8450c9a7e8976531fe9183bf5dab4f75
SHA256

9266e7c60ee4abd1b415a2ca3273d0a9d83547807f610565ca964065fa0aac14
SHA512

ea132456b576df8da4aef874e8bb7d77ecabcdf44679437ca7567f5832c096dc1bf31575d4ae37f3236d3313b1b9513de623cbadc85bc531c840dd3729e0acd3
SSDEEP

24576:4GYurNDn2jBroy03+qrgX0Gb1Qvhie97Mq6WULwPXn:4vuEpXCgJQ4sWwPn

Score

10^/10

remcos 8846455 discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

8846455

windowsoctarem.duckdns.org:56892

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
4765-HH3V0S
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
3716	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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	DHLAWBDOCS-9284730932.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4024 set thread context of 5060	4024	DHLAWBDOCS-9284730932.exe	90

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	DHLAWBDOCS-9284730932.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	DHLAWBDOCS-9284730932.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
1016	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3716	powershell.exe
3716	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3716	powershell.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 4024 wrote to memory of 3716	4024	DHLAWBDOCS-9284730932.exe	86
PID 4024 wrote to memory of 3716	4024	DHLAWBDOCS-9284730932.exe	86
PID 4024 wrote to memory of 3716	4024	DHLAWBDOCS-9284730932.exe	86
PID 4024 wrote to memory of 1016	4024	DHLAWBDOCS-9284730932.exe	88
PID 4024 wrote to memory of 1016	4024	DHLAWBDOCS-9284730932.exe	88
PID 4024 wrote to memory of 1016	4024	DHLAWBDOCS-9284730932.exe	88
PID 4024 wrote to memory of 5060	4024	DHLAWBDOCS-9284730932.exe	90
PID 4024 wrote to memory of 5060	4024	DHLAWBDOCS-9284730932.exe	90
PID 4024 wrote to memory of 5060	4024	DHLAWBDOCS-9284730932.exe	90
PID 4024 wrote to memory of 5060	4024	DHLAWBDOCS-9284730932.exe	90
PID 4024 wrote to memory of 5060	4024	DHLAWBDOCS-9284730932.exe	90
PID 4024 wrote to memory of 5060	4024	DHLAWBDOCS-9284730932.exe	90
PID 4024 wrote to memory of 5060	4024	DHLAWBDOCS-9284730932.exe	90
PID 4024 wrote to memory of 5060	4024	DHLAWBDOCS-9284730932.exe	90
PID 4024 wrote to memory of 5060	4024	DHLAWBDOCS-9284730932.exe	90
PID 4024 wrote to memory of 5060	4024	DHLAWBDOCS-9284730932.exe	90
PID 4024 wrote to memory of 5060	4024	DHLAWBDOCS-9284730932.exe	90
PID 4024 wrote to memory of 5060	4024	DHLAWBDOCS-9284730932.exe	90

C:\Users\Admin\AppData\Local\Temp\DHLAWBDOCS-9284730932.exe
"C:\Users\Admin\AppData\Local\Temp\DHLAWBDOCS-9284730932.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4024
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\HXyozBvXPdXB.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3716
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\HXyozBvXPdXB" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC9A9.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1016
- C:\Users\Admin\AppData\Local\Temp\DHLAWBDOCS-9284730932.exe
  "C:\Users\Admin\AppData\Local\Temp\DHLAWBDOCS-9284730932.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5060

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_cxgjf1bi.ekb.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpC9A9.tmp

Filesize
1KB

MD5
12b1b8f93827c0c82330a5bce627b349

SHA1
d3abae5f3d1699f92efdb620c5c08a624d35bc3d

SHA256
850a822c2dd85bf18896207e172715e6b2c93d5346c14075b36da3ea6fd5e9e6

SHA512
dbeda0d341c2f90e884cac355d4132ae7733a320baac59b07cc607455d927da46a7673698c3617b02638deb7f65e498e3c5393971b4d1704f2712edeb9d11c77

Download Submit
memory/3716-64-0x00000000079F0000-0x0000000007A04000-memory.dmp

Filesize
80KB

Download
memory/3716-65-0x0000000007AF0000-0x0000000007B0A000-memory.dmp

Filesize
104KB

Download
memory/3716-69-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/3716-66-0x0000000007AD0000-0x0000000007AD8000-memory.dmp

Filesize
32KB

Download
memory/3716-63-0x00000000079E0000-0x00000000079EE000-memory.dmp

Filesize
56KB

Download
memory/3716-62-0x00000000079B0000-0x00000000079C1000-memory.dmp

Filesize
68KB

Download
memory/3716-61-0x0000000007A30000-0x0000000007AC6000-memory.dmp

Filesize
600KB

Download
memory/3716-60-0x0000000007820000-0x000000000782A000-memory.dmp

Filesize
40KB

Download
memory/3716-58-0x0000000007DF0000-0x000000000846A000-memory.dmp

Filesize
6.5MB

Download
memory/3716-40-0x00000000064C0000-0x000000000650C000-memory.dmp

Filesize
304KB

Download
memory/3716-16-0x0000000002B70000-0x0000000002BA6000-memory.dmp

Filesize
216KB

Download
memory/3716-17-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/3716-18-0x0000000005580000-0x0000000005BA8000-memory.dmp

Filesize
6.2MB

Download
memory/3716-19-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/3716-20-0x00000000053B0000-0x00000000053D2000-memory.dmp

Filesize
136KB

Download
memory/3716-22-0x0000000005C20000-0x0000000005C86000-memory.dmp

Filesize
408KB

Download
memory/3716-57-0x0000000007490000-0x0000000007533000-memory.dmp

Filesize
652KB

Download
memory/3716-34-0x0000000005E40000-0x0000000006194000-memory.dmp

Filesize
3.3MB

Download
memory/3716-33-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/3716-56-0x0000000007430000-0x000000000744E000-memory.dmp

Filesize
120KB

Download
memory/3716-21-0x0000000005BB0000-0x0000000005C16000-memory.dmp

Filesize
408KB

Download
memory/3716-35-0x0000000006480000-0x000000000649E000-memory.dmp

Filesize
120KB

Download
memory/3716-46-0x000000006F600000-0x000000006F64C000-memory.dmp

Filesize
304KB

Download
memory/3716-45-0x0000000007450000-0x0000000007482000-memory.dmp

Filesize
200KB

Download
memory/3716-59-0x00000000077B0000-0x00000000077CA000-memory.dmp

Filesize
104KB

Download
memory/4024-3-0x0000000005680000-0x0000000005712000-memory.dmp

Filesize
584KB

Download
memory/4024-7-0x0000000005900000-0x0000000005912000-memory.dmp

Filesize
72KB

Download
memory/4024-6-0x0000000006940000-0x0000000006A24000-memory.dmp

Filesize
912KB

Download
memory/4024-43-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/4024-4-0x0000000005830000-0x000000000583A000-memory.dmp

Filesize
40KB

Download
memory/4024-0-0x0000000074C9E000-0x0000000074C9F000-memory.dmp

Filesize
4KB

Download
memory/4024-5-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/4024-1-0x0000000000CF0000-0x0000000000DFA000-memory.dmp

Filesize
1.0MB

Download
memory/4024-2-0x0000000005B90000-0x0000000006134000-memory.dmp

Filesize
5.6MB

Download
memory/4024-11-0x000000000B400000-0x000000000B49C000-memory.dmp

Filesize
624KB

Download
memory/4024-10-0x0000000007390000-0x000000000744E000-memory.dmp

Filesize
760KB

Download
memory/4024-9-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/4024-8-0x0000000074C9E000-0x0000000074C9F000-memory.dmp

Filesize
4KB

Download
memory/5060-42-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/5060-74-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/5060-39-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/5060-81-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/5060-38-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/5060-44-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/5060-70-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/5060-71-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/5060-72-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/5060-36-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/5060-75-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/5060-76-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/5060-77-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/5060-37-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/5060-79-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/5060-78-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/5060-82-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/5060-80-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download