remcos | 3d896c411b2b4c2f0f419adda474b192d6e7e0f496c7cf4bfb678d9bcdae11b5

Analysis

max time kernel
148s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
30-08-2024 01:19

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General

Target

3d896c411b2b4c2f0f419adda474b192d6e7e0f496c7cf4bfb678d9bcdae11b5.exe
Size

987KB
MD5

3fd2edc9d87c0a0eb814814f8f461483
SHA1

4b9ec9455439827479f661ddba252228e60db2ce
SHA256

3d896c411b2b4c2f0f419adda474b192d6e7e0f496c7cf4bfb678d9bcdae11b5
SHA512

21aee3b2bf388738937f7a262bc5def06c0d0eb09529d237565b369f93c643c5a44292031d844dc5a6e6a7f85866683d27e92ea966d3c24f89eabc6e84ae5070
SSDEEP

24576:OZMMCpg5QbkH/njR1WWdHSZCGF9bbMZi:70QmjR1W+HGHb9

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

192.3.243.155:7643

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-C9YEJ8
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 2 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2880	powershell.exe
1624	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-1-5-21-2170637797-568393320-3232933035-1000\Control Panel\International\Geo\Nation	3d896c411b2b4c2f0f419adda474b192d6e7e0f496c7cf4bfb678d9bcdae11b5.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4476 set thread context of 3304	4476	3d896c411b2b4c2f0f419adda474b192d6e7e0f496c7cf4bfb678d9bcdae11b5.exe	108

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	3d896c411b2b4c2f0f419adda474b192d6e7e0f496c7cf4bfb678d9bcdae11b5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3d896c411b2b4c2f0f419adda474b192d6e7e0f496c7cf4bfb678d9bcdae11b5.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
2224	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1624	powershell.exe
1624	powershell.exe
2880	powershell.exe
2880	powershell.exe
2880	powershell.exe
1624	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1624	powershell.exe
Token: SeDebugPrivilege	2880	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3304	3d896c411b2b4c2f0f419adda474b192d6e7e0f496c7cf4bfb678d9bcdae11b5.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 4476 wrote to memory of 1624	4476	3d896c411b2b4c2f0f419adda474b192d6e7e0f496c7cf4bfb678d9bcdae11b5.exe	102
PID 4476 wrote to memory of 1624	4476	3d896c411b2b4c2f0f419adda474b192d6e7e0f496c7cf4bfb678d9bcdae11b5.exe	102
PID 4476 wrote to memory of 1624	4476	3d896c411b2b4c2f0f419adda474b192d6e7e0f496c7cf4bfb678d9bcdae11b5.exe	102
PID 4476 wrote to memory of 2880	4476	3d896c411b2b4c2f0f419adda474b192d6e7e0f496c7cf4bfb678d9bcdae11b5.exe	104
PID 4476 wrote to memory of 2880	4476	3d896c411b2b4c2f0f419adda474b192d6e7e0f496c7cf4bfb678d9bcdae11b5.exe	104
PID 4476 wrote to memory of 2880	4476	3d896c411b2b4c2f0f419adda474b192d6e7e0f496c7cf4bfb678d9bcdae11b5.exe	104
PID 4476 wrote to memory of 2224	4476	3d896c411b2b4c2f0f419adda474b192d6e7e0f496c7cf4bfb678d9bcdae11b5.exe	106
PID 4476 wrote to memory of 2224	4476	3d896c411b2b4c2f0f419adda474b192d6e7e0f496c7cf4bfb678d9bcdae11b5.exe	106
PID 4476 wrote to memory of 2224	4476	3d896c411b2b4c2f0f419adda474b192d6e7e0f496c7cf4bfb678d9bcdae11b5.exe	106
PID 4476 wrote to memory of 3304	4476	3d896c411b2b4c2f0f419adda474b192d6e7e0f496c7cf4bfb678d9bcdae11b5.exe	108
PID 4476 wrote to memory of 3304	4476	3d896c411b2b4c2f0f419adda474b192d6e7e0f496c7cf4bfb678d9bcdae11b5.exe	108
PID 4476 wrote to memory of 3304	4476	3d896c411b2b4c2f0f419adda474b192d6e7e0f496c7cf4bfb678d9bcdae11b5.exe	108
PID 4476 wrote to memory of 3304	4476	3d896c411b2b4c2f0f419adda474b192d6e7e0f496c7cf4bfb678d9bcdae11b5.exe	108
PID 4476 wrote to memory of 3304	4476	3d896c411b2b4c2f0f419adda474b192d6e7e0f496c7cf4bfb678d9bcdae11b5.exe	108
PID 4476 wrote to memory of 3304	4476	3d896c411b2b4c2f0f419adda474b192d6e7e0f496c7cf4bfb678d9bcdae11b5.exe	108
PID 4476 wrote to memory of 3304	4476	3d896c411b2b4c2f0f419adda474b192d6e7e0f496c7cf4bfb678d9bcdae11b5.exe	108
PID 4476 wrote to memory of 3304	4476	3d896c411b2b4c2f0f419adda474b192d6e7e0f496c7cf4bfb678d9bcdae11b5.exe	108
PID 4476 wrote to memory of 3304	4476	3d896c411b2b4c2f0f419adda474b192d6e7e0f496c7cf4bfb678d9bcdae11b5.exe	108
PID 4476 wrote to memory of 3304	4476	3d896c411b2b4c2f0f419adda474b192d6e7e0f496c7cf4bfb678d9bcdae11b5.exe	108
PID 4476 wrote to memory of 3304	4476	3d896c411b2b4c2f0f419adda474b192d6e7e0f496c7cf4bfb678d9bcdae11b5.exe	108
PID 4476 wrote to memory of 3304	4476	3d896c411b2b4c2f0f419adda474b192d6e7e0f496c7cf4bfb678d9bcdae11b5.exe	108

C:\Users\Admin\AppData\Local\Temp\3d896c411b2b4c2f0f419adda474b192d6e7e0f496c7cf4bfb678d9bcdae11b5.exe
"C:\Users\Admin\AppData\Local\Temp\3d896c411b2b4c2f0f419adda474b192d6e7e0f496c7cf4bfb678d9bcdae11b5.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4476
- 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\3d896c411b2b4c2f0f419adda474b192d6e7e0f496c7cf4bfb678d9bcdae11b5.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1624
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\gqxyRiPaQx.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2880
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\gqxyRiPaQx" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8587.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2224
- C:\Users\Admin\AppData\Local\Temp\3d896c411b2b4c2f0f419adda474b192d6e7e0f496c7cf4bfb678d9bcdae11b5.exe
  "C:\Users\Admin\AppData\Local\Temp\3d896c411b2b4c2f0f419adda474b192d6e7e0f496c7cf4bfb678d9bcdae11b5.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:3304

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=1044,i,3210801877307184477,8078594481454001567,262144 --variations-seed-version --mojo-platform-channel-handle=4388 /prefetch:8
1⤵
PID:1400

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\remcos\logs.dat

Filesize
144B

MD5
12af8e22cd219bff0268824f6052c9e1

SHA1
49760fffee7dc8abf61e7226f71702b68767644c

SHA256
3c7148fbfc179fa9e2fd71ee6576db980d04bb5f768a18a2e4dd070ee9ac29b3

SHA512
ed531d7f7cad34748842c63116584406a1b82abd3ce761a53bf2b8058370afd3586a50f6f4bc0d34ca7bc3f9f6dff9d1936ca93ccf6d2c51530e72ea7a2075a6

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
968cb9309758126772781b83adb8a28f

SHA1
8da30e71accf186b2ba11da1797cf67f8f78b47c

SHA256
92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

SHA512
4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
18KB

MD5
7130d4718ac2180e0bfce84d2145b625

SHA1
6758846a468d6a0b54035786eb014595a17735b9

SHA256
7d5374a69171e7ce766d7a841ec130c9f2b8dcaeb9cba3ff86fdcb3a0713b951

SHA512
05f5825d865fe8955488860aeefa5a375b30b303ca14f3b09013afe30cb6957c8232f8ce4d154e9c68a26949ebffb3623576f5062504cc37cd798c6b823e0a40

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_f2ygc33t.lw0.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp8587.tmp

Filesize
1KB

MD5
94eb363efba955e437d05558165dcde8

SHA1
351456390a7062b9e75a0606b85138d3e5734194

SHA256
9cddc35d0c1a3dea245599b4304f02c67d9ad3d5fb2d12efa7e6fe31876ea778

SHA512
2a6b95d157214d75530bab711364b2ebdf31fd0a62d9d958d33659eaa752061a7ada3efc429b6ceeef91922083c8b7c51e55c7d08ebde23103149a2c71f0ccb2

Download Submit
memory/1624-79-0x000000006FAD0000-0x000000006FB1C000-memory.dmp

Filesize
304KB

Download
memory/1624-22-0x0000000004B00000-0x0000000004B22000-memory.dmp

Filesize
136KB

Download
memory/1624-24-0x0000000004C20000-0x0000000004C86000-memory.dmp

Filesize
408KB

Download
memory/1624-99-0x00000000745E0000-0x0000000074D90000-memory.dmp

Filesize
7.7MB

Download
memory/1624-17-0x0000000004CF0000-0x0000000005318000-memory.dmp

Filesize
6.2MB

Download
memory/1624-20-0x00000000745E0000-0x0000000074D90000-memory.dmp

Filesize
7.7MB

Download
memory/1624-15-0x00000000021C0000-0x00000000021F6000-memory.dmp

Filesize
216KB

Download
memory/1624-16-0x00000000745E0000-0x0000000074D90000-memory.dmp

Filesize
7.7MB

Download
memory/1624-18-0x00000000745E0000-0x0000000074D90000-memory.dmp

Filesize
7.7MB

Download
memory/2880-91-0x0000000007950000-0x000000000796A000-memory.dmp

Filesize
104KB

Download
memory/2880-70-0x00000000068C0000-0x00000000068DE000-memory.dmp

Filesize
120KB

Download
memory/2880-95-0x00000000745E0000-0x0000000074D90000-memory.dmp

Filesize
7.7MB

Download
memory/2880-21-0x00000000745E0000-0x0000000074D90000-memory.dmp

Filesize
7.7MB

Download
memory/2880-92-0x0000000007930000-0x0000000007938000-memory.dmp

Filesize
32KB

Download
memory/2880-90-0x0000000007850000-0x0000000007864000-memory.dmp

Filesize
80KB

Download
memory/2880-30-0x0000000005420000-0x0000000005486000-memory.dmp

Filesize
408KB

Download
memory/2880-89-0x0000000007840000-0x000000000784E000-memory.dmp

Filesize
56KB

Download
memory/2880-78-0x0000000007810000-0x0000000007821000-memory.dmp

Filesize
68KB

Download
memory/2880-44-0x0000000005F00000-0x0000000006254000-memory.dmp

Filesize
3.3MB

Download
memory/2880-45-0x00000000062D0000-0x00000000062EE000-memory.dmp

Filesize
120KB

Download
memory/2880-46-0x0000000006830000-0x000000000687C000-memory.dmp

Filesize
304KB

Download
memory/2880-77-0x0000000007890000-0x0000000007926000-memory.dmp

Filesize
600KB

Download
memory/2880-19-0x00000000745E0000-0x0000000074D90000-memory.dmp

Filesize
7.7MB

Download
memory/2880-74-0x0000000007680000-0x000000000768A000-memory.dmp

Filesize
40KB

Download
memory/2880-72-0x0000000007C50000-0x00000000082CA000-memory.dmp

Filesize
6.5MB

Download
memory/2880-73-0x0000000007610000-0x000000000762A000-memory.dmp

Filesize
104KB

Download
memory/2880-59-0x00000000072B0000-0x00000000072E2000-memory.dmp

Filesize
200KB

Download
memory/2880-60-0x000000006FAD0000-0x000000006FB1C000-memory.dmp

Filesize
304KB

Download
memory/2880-71-0x00000000072F0000-0x0000000007393000-memory.dmp

Filesize
652KB

Download
memory/3304-53-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3304-52-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3304-57-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3304-56-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3304-47-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3304-48-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3304-49-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3304-134-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3304-76-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3304-101-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3304-133-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3304-126-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3304-125-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3304-118-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3304-117-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3304-58-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3304-110-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3304-109-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3304-102-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4476-9-0x0000000006360000-0x0000000006420000-memory.dmp

Filesize
768KB

Download
memory/4476-2-0x00000000055B0000-0x0000000005B54000-memory.dmp

Filesize
5.6MB

Download
memory/4476-3-0x00000000050A0000-0x0000000005132000-memory.dmp

Filesize
584KB

Download
memory/4476-1-0x00000000005C0000-0x00000000006BE000-memory.dmp

Filesize
1016KB

Download
memory/4476-4-0x0000000005160000-0x000000000516A000-memory.dmp

Filesize
40KB

Download
memory/4476-10-0x0000000009F40000-0x0000000009FDC000-memory.dmp

Filesize
624KB

Download
memory/4476-0-0x00000000745EE000-0x00000000745EF000-memory.dmp

Filesize
4KB

Download
memory/4476-8-0x00000000745E0000-0x0000000074D90000-memory.dmp

Filesize
7.7MB

Download
memory/4476-7-0x00000000745EE000-0x00000000745EF000-memory.dmp

Filesize
4KB

Download
memory/4476-5-0x00000000745E0000-0x0000000074D90000-memory.dmp

Filesize
7.7MB

Download
memory/4476-6-0x00000000053C0000-0x00000000053D8000-memory.dmp

Filesize
96KB

Download
memory/4476-55-0x00000000745E0000-0x0000000074D90000-memory.dmp

Filesize
7.7MB

Download