remcos | 206b328955094948dde0163fc226ac292906788fb4e9d8b941963383bd4a84fd

Resubmissions

05-10-2024 12:24

241005-plgwtsxerh 10

25-09-2024 13:15

240925-qhn2eazhmh 10

Analysis

max time kernel
150s
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
25-09-2024 13:15

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General

Target

Confirmation Order.exe
Size

892KB
MD5

3b13b07b05ea3f2084ee3c38080fffe3
SHA1

dde112544004281ad7d02b36c607bc4a258f22a6
SHA256

b93408af1dfa127e3b11d16cd92dab65f448d77fa933259c139bb0f0e6d33a75
SHA512

c09987d78d52fc94bc991b40380b6f5752f1b15139850d24ed93e9ea8ce74add4b4b477493fb8c0a6980de9e14fb511123e2571622c3c5a46f4402f09d037fe0
SSDEEP

12288:5Eqv8RratEshTEMAiqoWpVvfS4D36FUOJT02id9IV/SxjTWAY+acgp8bQbQk:J8OZTEMAifWTvfuL42id94cgGIQ

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

127.0.0.1:59321

nnamoo.duckdns.org:59321

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-41EVS0
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 2 IoCs

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

execution

PowerShell

T1059.001

pid	Process
4968	powershell.exe
2112	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-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation	Confirmation Order.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3068 set thread context of 4440	3068	Confirmation Order.exe	96

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	Confirmation Order.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Confirmation Order.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

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
2124	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
4968	powershell.exe
2112	powershell.exe
3068	Confirmation Order.exe
3068	Confirmation Order.exe
2112	powershell.exe
4968	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4968	powershell.exe
Token: SeDebugPrivilege	2112	powershell.exe
Token: SeDebugPrivilege	3068	Confirmation Order.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 3068 wrote to memory of 4968	3068	Confirmation Order.exe	89
PID 3068 wrote to memory of 4968	3068	Confirmation Order.exe	89
PID 3068 wrote to memory of 4968	3068	Confirmation Order.exe	89
PID 3068 wrote to memory of 2112	3068	Confirmation Order.exe	91
PID 3068 wrote to memory of 2112	3068	Confirmation Order.exe	91
PID 3068 wrote to memory of 2112	3068	Confirmation Order.exe	91
PID 3068 wrote to memory of 2124	3068	Confirmation Order.exe	93
PID 3068 wrote to memory of 2124	3068	Confirmation Order.exe	93
PID 3068 wrote to memory of 2124	3068	Confirmation Order.exe	93
PID 3068 wrote to memory of 680	3068	Confirmation Order.exe	95
PID 3068 wrote to memory of 680	3068	Confirmation Order.exe	95
PID 3068 wrote to memory of 680	3068	Confirmation Order.exe	95
PID 3068 wrote to memory of 4440	3068	Confirmation Order.exe	96
PID 3068 wrote to memory of 4440	3068	Confirmation Order.exe	96
PID 3068 wrote to memory of 4440	3068	Confirmation Order.exe	96
PID 3068 wrote to memory of 4440	3068	Confirmation Order.exe	96
PID 3068 wrote to memory of 4440	3068	Confirmation Order.exe	96
PID 3068 wrote to memory of 4440	3068	Confirmation Order.exe	96
PID 3068 wrote to memory of 4440	3068	Confirmation Order.exe	96
PID 3068 wrote to memory of 4440	3068	Confirmation Order.exe	96
PID 3068 wrote to memory of 4440	3068	Confirmation Order.exe	96
PID 3068 wrote to memory of 4440	3068	Confirmation Order.exe	96
PID 3068 wrote to memory of 4440	3068	Confirmation Order.exe	96
PID 3068 wrote to memory of 4440	3068	Confirmation Order.exe	96

C:\Users\Admin\AppData\Local\Temp\Confirmation Order.exe
"C:\Users\Admin\AppData\Local\Temp\Confirmation Order.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:3068
- 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\Confirmation Order.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4968
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\bDXSeyoVzkpA.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2112
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\bDXSeyoVzkpA" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC832.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2124
- C:\Users\Admin\AppData\Local\Temp\Confirmation Order.exe
  "C:\Users\Admin\AppData\Local\Temp\Confirmation Order.exe"
  2⤵
  PID:680
- C:\Users\Admin\AppData\Local\Temp\Confirmation Order.exe
  "C:\Users\Admin\AppData\Local\Temp\Confirmation Order.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4440

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\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
70c808daf11a29c5966e0c9c5cdc934c

SHA1
8abdecbf1261a4d2b09d55035997c92c0b7fadf1

SHA256
2d09459f3d35d0ea05b4eeb8e5cc3c8e4ed8a84b6585c4e26acbcd7b1ecd3636

SHA512
f090af571c8315ac2631d9c5185d048654a6fc4d76d5812b16433d53e7d04f6814de18985666fb9c564ab37aedc815720a3ef3f9bd37c8e21d82a5f1a2766571

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_etezuw03.4hj.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpC832.tmp

Filesize
1KB

MD5
2d671bcfdbe80fe95ac4211fb7fda712

SHA1
6232ef665c96e240026cca148d5efabcb32375cb

SHA256
55adb0070a922c249ff4159c18b16479a8bfa76e698dca970e74ac525e9216ce

SHA512
c4231fba22d2cc3f2448ba99c81201208bd6a841def20a7197493381e741cdd2b50c6852c589b54c8aadac1be039580752261f20ed55e3e254ec0cf5d74debee

Download Submit
memory/2112-69-0x0000000075740000-0x000000007578C000-memory.dmp

Filesize
304KB

Download
memory/2112-94-0x0000000074EB0000-0x0000000075660000-memory.dmp

Filesize
7.7MB

Download
memory/2112-24-0x0000000074EB0000-0x0000000075660000-memory.dmp

Filesize
7.7MB

Download
memory/2112-53-0x0000000005D20000-0x0000000005D6C000-memory.dmp

Filesize
304KB

Download
memory/2112-52-0x0000000005CE0000-0x0000000005CFE000-memory.dmp

Filesize
120KB

Download
memory/2112-48-0x0000000074EB0000-0x0000000075660000-memory.dmp

Filesize
7.7MB

Download
memory/2112-23-0x0000000074EB0000-0x0000000075660000-memory.dmp

Filesize
7.7MB

Download
memory/3068-10-0x000000000A390000-0x000000000A42C000-memory.dmp

Filesize
624KB

Download
memory/3068-8-0x0000000074EB0000-0x0000000075660000-memory.dmp

Filesize
7.7MB

Download
memory/3068-1-0x0000000000F80000-0x0000000001066000-memory.dmp

Filesize
920KB

Download
memory/3068-0-0x0000000074EBE000-0x0000000074EBF000-memory.dmp

Filesize
4KB

Download
memory/3068-2-0x0000000006000000-0x00000000065A4000-memory.dmp

Filesize
5.6MB

Download
memory/3068-3-0x0000000005A50000-0x0000000005AE2000-memory.dmp

Filesize
584KB

Download
memory/3068-4-0x0000000005A30000-0x0000000005A3A000-memory.dmp

Filesize
40KB

Download
memory/3068-5-0x0000000074EB0000-0x0000000075660000-memory.dmp

Filesize
7.7MB

Download
memory/3068-6-0x00000000077D0000-0x00000000077E2000-memory.dmp

Filesize
72KB

Download
memory/3068-7-0x0000000074EBE000-0x0000000074EBF000-memory.dmp

Filesize
4KB

Download
memory/3068-9-0x0000000007C60000-0x0000000007D1E000-memory.dmp

Filesize
760KB

Download
memory/3068-51-0x0000000074EB0000-0x0000000075660000-memory.dmp

Filesize
7.7MB

Download
memory/4440-49-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4440-97-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4440-50-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4440-106-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4440-47-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4440-101-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4440-100-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4440-102-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4440-103-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4440-36-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4440-96-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4440-95-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4440-81-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4440-104-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4440-107-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4440-105-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4440-83-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4968-19-0x0000000005830000-0x0000000005852000-memory.dmp

Filesize
136KB

Download
memory/4968-82-0x0000000007D00000-0x0000000007D11000-memory.dmp

Filesize
68KB

Download
memory/4968-80-0x0000000007D80000-0x0000000007E16000-memory.dmp

Filesize
600KB

Download
memory/4968-79-0x0000000007B70000-0x0000000007B7A000-memory.dmp

Filesize
40KB

Download
memory/4968-84-0x0000000007D30000-0x0000000007D3E000-memory.dmp

Filesize
56KB

Download
memory/4968-85-0x0000000007D40000-0x0000000007D54000-memory.dmp

Filesize
80KB

Download
memory/4968-86-0x0000000007E40000-0x0000000007E5A000-memory.dmp

Filesize
104KB

Download
memory/4968-87-0x0000000007E20000-0x0000000007E28000-memory.dmp

Filesize
32KB

Download
memory/4968-67-0x0000000008140000-0x00000000087BA000-memory.dmp

Filesize
6.5MB

Download
memory/4968-68-0x0000000007B00000-0x0000000007B1A000-memory.dmp

Filesize
104KB

Download
memory/4968-55-0x0000000075740000-0x000000007578C000-memory.dmp

Filesize
304KB

Download
memory/4968-93-0x0000000074EB0000-0x0000000075660000-memory.dmp

Filesize
7.7MB

Download
memory/4968-66-0x00000000077A0000-0x0000000007843000-memory.dmp

Filesize
652KB

Download
memory/4968-65-0x0000000007740000-0x000000000775E000-memory.dmp

Filesize
120KB

Download
memory/4968-54-0x0000000007760000-0x0000000007792000-memory.dmp

Filesize
200KB

Download
memory/4968-35-0x0000000074EB0000-0x0000000075660000-memory.dmp

Filesize
7.7MB

Download
memory/4968-25-0x00000000061E0000-0x0000000006534000-memory.dmp

Filesize
3.3MB

Download
memory/4968-20-0x00000000059D0000-0x0000000005A36000-memory.dmp

Filesize
408KB

Download
memory/4968-22-0x0000000074EB0000-0x0000000075660000-memory.dmp

Filesize
7.7MB

Download
memory/4968-21-0x0000000005A40000-0x0000000005AA6000-memory.dmp

Filesize
408KB

Download
memory/4968-16-0x0000000074EB0000-0x0000000075660000-memory.dmp

Filesize
7.7MB

Download
memory/4968-17-0x0000000005BB0000-0x00000000061D8000-memory.dmp

Filesize
6.2MB

Download
memory/4968-15-0x0000000002ED0000-0x0000000002F06000-memory.dmp

Filesize
216KB

Download