remcos | 2059894744994d02d06075173056dff2829559bb1a073ef43d105df3f1e6707f

Analysis

max time kernel
150s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
14-09-2024 01:21

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General

Target

da9e45efadb2232b4c6f1ec165bd01a0c9d274f045d058b5c1376106b47b053f.exe
Size

881KB
MD5

8da358d4b7d180480aba90d78ecff7ae
SHA1

9b1858ad42d183226460c7f09f2a657c3ed9279a
SHA256

da9e45efadb2232b4c6f1ec165bd01a0c9d274f045d058b5c1376106b47b053f
SHA512

c3ef79026467411e9dabd624549a510e92356d559938ec37352289d99f07c934c893b8c1a0cb308056027e6e8fb1aeeda01148f256d3e2d0a2b7108a737b5baa
SSDEEP

24576:qBnnC3qGtqYqAy2BGVDNE61G43uig/IhdpkE:BaG1ZBAD71GFf6w

Score

10^/10

remcos udu discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

udu

UDUM.WORK.GD:2431

Attributes

audio_folder
MicRecords
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
remcos.exe
copy_folder
vlc
delete_file
false
hide_file
false
hide_keylog_file
false
install_flag
false
keylog_crypt
true
keylog_file
logs.dat
keylog_flag
false
keylog_folder
sos
mouse_option
false
mutex
udm-2WYU92
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
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
4412	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-1-5-21-2718105630-359604950-2820636825-1000\Control Panel\International\Geo\Nation	da9e45efadb2232b4c6f1ec165bd01a0c9d274f045d058b5c1376106b47b053f.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1888 set thread context of 4780	1888	da9e45efadb2232b4c6f1ec165bd01a0c9d274f045d058b5c1376106b47b053f.exe	98

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	da9e45efadb2232b4c6f1ec165bd01a0c9d274f045d058b5c1376106b47b053f.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	da9e45efadb2232b4c6f1ec165bd01a0c9d274f045d058b5c1376106b47b053f.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
3092	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1888	da9e45efadb2232b4c6f1ec165bd01a0c9d274f045d058b5c1376106b47b053f.exe
1888	da9e45efadb2232b4c6f1ec165bd01a0c9d274f045d058b5c1376106b47b053f.exe
1888	da9e45efadb2232b4c6f1ec165bd01a0c9d274f045d058b5c1376106b47b053f.exe
1888	da9e45efadb2232b4c6f1ec165bd01a0c9d274f045d058b5c1376106b47b053f.exe
4412	powershell.exe
4412	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1888	da9e45efadb2232b4c6f1ec165bd01a0c9d274f045d058b5c1376106b47b053f.exe
Token: SeDebugPrivilege	4412	powershell.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4780	da9e45efadb2232b4c6f1ec165bd01a0c9d274f045d058b5c1376106b47b053f.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
4780	da9e45efadb2232b4c6f1ec165bd01a0c9d274f045d058b5c1376106b47b053f.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4780	da9e45efadb2232b4c6f1ec165bd01a0c9d274f045d058b5c1376106b47b053f.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 1888 wrote to memory of 4412	1888	da9e45efadb2232b4c6f1ec165bd01a0c9d274f045d058b5c1376106b47b053f.exe	93
PID 1888 wrote to memory of 4412	1888	da9e45efadb2232b4c6f1ec165bd01a0c9d274f045d058b5c1376106b47b053f.exe	93
PID 1888 wrote to memory of 4412	1888	da9e45efadb2232b4c6f1ec165bd01a0c9d274f045d058b5c1376106b47b053f.exe	93
PID 1888 wrote to memory of 3092	1888	da9e45efadb2232b4c6f1ec165bd01a0c9d274f045d058b5c1376106b47b053f.exe	95
PID 1888 wrote to memory of 3092	1888	da9e45efadb2232b4c6f1ec165bd01a0c9d274f045d058b5c1376106b47b053f.exe	95
PID 1888 wrote to memory of 3092	1888	da9e45efadb2232b4c6f1ec165bd01a0c9d274f045d058b5c1376106b47b053f.exe	95
PID 1888 wrote to memory of 4508	1888	da9e45efadb2232b4c6f1ec165bd01a0c9d274f045d058b5c1376106b47b053f.exe	97
PID 1888 wrote to memory of 4508	1888	da9e45efadb2232b4c6f1ec165bd01a0c9d274f045d058b5c1376106b47b053f.exe	97
PID 1888 wrote to memory of 4508	1888	da9e45efadb2232b4c6f1ec165bd01a0c9d274f045d058b5c1376106b47b053f.exe	97
PID 1888 wrote to memory of 4780	1888	da9e45efadb2232b4c6f1ec165bd01a0c9d274f045d058b5c1376106b47b053f.exe	98
PID 1888 wrote to memory of 4780	1888	da9e45efadb2232b4c6f1ec165bd01a0c9d274f045d058b5c1376106b47b053f.exe	98
PID 1888 wrote to memory of 4780	1888	da9e45efadb2232b4c6f1ec165bd01a0c9d274f045d058b5c1376106b47b053f.exe	98
PID 1888 wrote to memory of 4780	1888	da9e45efadb2232b4c6f1ec165bd01a0c9d274f045d058b5c1376106b47b053f.exe	98
PID 1888 wrote to memory of 4780	1888	da9e45efadb2232b4c6f1ec165bd01a0c9d274f045d058b5c1376106b47b053f.exe	98
PID 1888 wrote to memory of 4780	1888	da9e45efadb2232b4c6f1ec165bd01a0c9d274f045d058b5c1376106b47b053f.exe	98
PID 1888 wrote to memory of 4780	1888	da9e45efadb2232b4c6f1ec165bd01a0c9d274f045d058b5c1376106b47b053f.exe	98
PID 1888 wrote to memory of 4780	1888	da9e45efadb2232b4c6f1ec165bd01a0c9d274f045d058b5c1376106b47b053f.exe	98
PID 1888 wrote to memory of 4780	1888	da9e45efadb2232b4c6f1ec165bd01a0c9d274f045d058b5c1376106b47b053f.exe	98
PID 1888 wrote to memory of 4780	1888	da9e45efadb2232b4c6f1ec165bd01a0c9d274f045d058b5c1376106b47b053f.exe	98
PID 1888 wrote to memory of 4780	1888	da9e45efadb2232b4c6f1ec165bd01a0c9d274f045d058b5c1376106b47b053f.exe	98
PID 1888 wrote to memory of 4780	1888	da9e45efadb2232b4c6f1ec165bd01a0c9d274f045d058b5c1376106b47b053f.exe	98

C:\Users\Admin\AppData\Local\Temp\da9e45efadb2232b4c6f1ec165bd01a0c9d274f045d058b5c1376106b47b053f.exe
"C:\Users\Admin\AppData\Local\Temp\da9e45efadb2232b4c6f1ec165bd01a0c9d274f045d058b5c1376106b47b053f.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:1888
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\mjbXtJDvJVt.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4412
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\mjbXtJDvJVt" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF0A9.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:3092
- C:\Users\Admin\AppData\Local\Temp\da9e45efadb2232b4c6f1ec165bd01a0c9d274f045d058b5c1376106b47b053f.exe
  "C:\Users\Admin\AppData\Local\Temp\da9e45efadb2232b4c6f1ec165bd01a0c9d274f045d058b5c1376106b47b053f.exe"
  2⤵
  PID:4508
- C:\Users\Admin\AppData\Local\Temp\da9e45efadb2232b4c6f1ec165bd01a0c9d274f045d058b5c1376106b47b053f.exe
  "C:\Users\Admin\AppData\Local\Temp\da9e45efadb2232b4c6f1ec165bd01a0c9d274f045d058b5c1376106b47b053f.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of SetWindowsHookEx
  PID:4780

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:\ProgramData\sos\logs.dat

Filesize
318B

MD5
d4906ef720167c5e839de92871eee6c0

SHA1
f7e0e3f9ce02bd93a110ea1ef541c9713a276d39

SHA256
b5d5dda3f5b8d0d583aebe27c744be0a58b38e1fb9feaa59620747877268ffd2

SHA512
86cdb40d7d82443797b46f5a02a0c7375f2287d4d4e2ba8164bdae85ed2114aa5fdaeec06ae83a1761de6b1373dd5b47ac344094ed85997c0f4828964de2912a

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_h2yrfalg.bsh.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpF0A9.tmp

Filesize
1KB

MD5
f2738dbe7b56540819e8b54764082a90

SHA1
188e58f25392a7cc84a8189672e40660a4b10f3c

SHA256
33b2ee2412a30f62ff9a20a0a15567f66a5af4eba7217292ed20f79fedd1b2d7

SHA512
b567e5e9fd08aeccca2cd68c431be9c1521e337234cc6a4857218ded1205de264a0d098f4de8727330bc5c8c109c56b6f55b021cd1a8624cece41b52ad39c290

Download Submit
memory/1888-6-0x0000000005850000-0x0000000005860000-memory.dmp

Filesize
64KB

Download
memory/1888-4-0x0000000074A10000-0x00000000751C0000-memory.dmp

Filesize
7.7MB

Download
memory/1888-5-0x00000000056F0000-0x00000000056FA000-memory.dmp

Filesize
40KB

Download
memory/1888-3-0x0000000005650000-0x00000000056E2000-memory.dmp

Filesize
584KB

Download
memory/1888-7-0x0000000074A1E000-0x0000000074A1F000-memory.dmp

Filesize
4KB

Download
memory/1888-8-0x0000000074A10000-0x00000000751C0000-memory.dmp

Filesize
7.7MB

Download
memory/1888-9-0x0000000006E40000-0x0000000006F00000-memory.dmp

Filesize
768KB

Download
memory/1888-10-0x0000000009440000-0x00000000094DC000-memory.dmp

Filesize
624KB

Download
memory/1888-2-0x0000000005B60000-0x0000000006104000-memory.dmp

Filesize
5.6MB

Download
memory/1888-0-0x0000000074A1E000-0x0000000074A1F000-memory.dmp

Filesize
4KB

Download
memory/1888-1-0x0000000000B80000-0x0000000000C62000-memory.dmp

Filesize
904KB

Download
memory/1888-29-0x0000000074A10000-0x00000000751C0000-memory.dmp

Filesize
7.7MB

Download
memory/4412-46-0x0000000005E00000-0x0000000005E4C000-memory.dmp

Filesize
304KB

Download
memory/4412-66-0x00000000072D0000-0x00000000072E4000-memory.dmp

Filesize
80KB

Download
memory/4412-16-0x0000000074A10000-0x00000000751C0000-memory.dmp

Filesize
7.7MB

Download
memory/4412-71-0x0000000074A10000-0x00000000751C0000-memory.dmp

Filesize
7.7MB

Download
memory/4412-27-0x0000000005590000-0x00000000055F6000-memory.dmp

Filesize
408KB

Download
memory/4412-68-0x00000000073B0000-0x00000000073B8000-memory.dmp

Filesize
32KB

Download
memory/4412-25-0x0000000004D90000-0x0000000004DB2000-memory.dmp

Filesize
136KB

Download
memory/4412-67-0x00000000073D0000-0x00000000073EA000-memory.dmp

Filesize
104KB

Download
memory/4412-28-0x0000000005730000-0x0000000005796000-memory.dmp

Filesize
408KB

Download
memory/4412-18-0x0000000074A10000-0x00000000751C0000-memory.dmp

Filesize
7.7MB

Download
memory/4412-15-0x0000000002470000-0x00000000024A6000-memory.dmp

Filesize
216KB

Download
memory/4412-39-0x00000000057A0000-0x0000000005AF4000-memory.dmp

Filesize
3.3MB

Download
memory/4412-19-0x0000000074A10000-0x00000000751C0000-memory.dmp

Filesize
7.7MB

Download
memory/4412-64-0x0000000007290000-0x00000000072A1000-memory.dmp

Filesize
68KB

Download
memory/4412-65-0x00000000072C0000-0x00000000072CE000-memory.dmp

Filesize
56KB

Download
memory/4412-45-0x0000000005C60000-0x0000000005C7E000-memory.dmp

Filesize
120KB

Download
memory/4412-17-0x0000000004EF0000-0x0000000005518000-memory.dmp

Filesize
6.2MB

Download
memory/4412-47-0x0000000006F60000-0x0000000006F92000-memory.dmp

Filesize
200KB

Download
memory/4412-48-0x0000000070F60000-0x0000000070FAC000-memory.dmp

Filesize
304KB

Download
memory/4412-58-0x0000000006340000-0x000000000635E000-memory.dmp

Filesize
120KB

Download
memory/4412-59-0x0000000006FA0000-0x0000000007043000-memory.dmp

Filesize
652KB

Download
memory/4412-60-0x00000000076E0000-0x0000000007D5A000-memory.dmp

Filesize
6.5MB

Download
memory/4412-61-0x0000000007090000-0x00000000070AA000-memory.dmp

Filesize
104KB

Download
memory/4412-62-0x0000000007110000-0x000000000711A000-memory.dmp

Filesize
40KB

Download
memory/4412-63-0x0000000007310000-0x00000000073A6000-memory.dmp

Filesize
600KB

Download
memory/4780-40-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4780-41-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4780-44-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4780-21-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4780-26-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4780-22-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4780-72-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4780-74-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4780-23-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4780-79-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4780-80-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4780-85-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4780-86-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4780-91-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4780-93-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4780-98-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4780-99-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4780-104-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4780-105-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4780-111-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download