remcos | 9c39d381f96fb45ffcb826c90aaee8c6818767eabf44e757fa5518217611d7c7

Analysis

max time kernel
149s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20250207-en
resource tags

arch:x64arch:x86image:win10v2004-20250207-enlocale:en-usos:windows10-2004-x64system
submitted
17/02/2025, 03:53

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General

Target

9c39d381f96fb45ffcb826c90aaee8c6818767eabf44e757fa5518217611d7c7.exe
Size

1.3MB
MD5

8b0f66978d1934eec07b6213c2c8037a
SHA1

a33a467ae0d0ceaefcefaf7a5b6f7670ec1c3062
SHA256

9c39d381f96fb45ffcb826c90aaee8c6818767eabf44e757fa5518217611d7c7
SHA512

16976157ddc43b02cb1d0fc1d621cdc2d64b27b1f0f7e6620fcafdaf52bd77ecf970e051ad1bcc3cb6fa74f9737c127e1af40ad04d86764931cc3b606bfc5fa0
SSDEEP

24576:LaHUIH+zim0CY8iMklskJzNbpYk6B9DNSLAFi02Kyh6qqRztvjnKPXlof6btJ:LaHUIH+g8iMklfhtGkuDqAMfdh6qqttY

Score

10^/10

remcos feb 16 discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

FEB 16

austin99.duckdns.org:9373

103.186.117.61:9373

heksaa3030.redirectme.net:9373

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-YHG6AC
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 1 IoCs

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

execution

PowerShell

T1059.001

pid	Process
1748	powershell.exe

Downloads MZ/PE file 1 IoCs

flow	pid	Process
37	3540	Process not Found

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-1-5-21-1639772215-809007892-4072230623-1000\Control Panel\International\Geo\Nation	9c39d381f96fb45ffcb826c90aaee8c6818767eabf44e757fa5518217611d7c7.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3124 set thread context of 4076	3124	9c39d381f96fb45ffcb826c90aaee8c6818767eabf44e757fa5518217611d7c7.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 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	9c39d381f96fb45ffcb826c90aaee8c6818767eabf44e757fa5518217611d7c7.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MicrosoftEdgeUpdate.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	9c39d381f96fb45ffcb826c90aaee8c6818767eabf44e757fa5518217611d7c7.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
5060	MicrosoftEdgeUpdate.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
1588	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3124	9c39d381f96fb45ffcb826c90aaee8c6818767eabf44e757fa5518217611d7c7.exe
3124	9c39d381f96fb45ffcb826c90aaee8c6818767eabf44e757fa5518217611d7c7.exe
1748	powershell.exe
1748	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3124	9c39d381f96fb45ffcb826c90aaee8c6818767eabf44e757fa5518217611d7c7.exe
Token: SeDebugPrivilege	1748	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4076	9c39d381f96fb45ffcb826c90aaee8c6818767eabf44e757fa5518217611d7c7.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 3124 wrote to memory of 1748	3124	9c39d381f96fb45ffcb826c90aaee8c6818767eabf44e757fa5518217611d7c7.exe	94
PID 3124 wrote to memory of 1748	3124	9c39d381f96fb45ffcb826c90aaee8c6818767eabf44e757fa5518217611d7c7.exe	94
PID 3124 wrote to memory of 1748	3124	9c39d381f96fb45ffcb826c90aaee8c6818767eabf44e757fa5518217611d7c7.exe	94
PID 3124 wrote to memory of 1588	3124	9c39d381f96fb45ffcb826c90aaee8c6818767eabf44e757fa5518217611d7c7.exe	96
PID 3124 wrote to memory of 1588	3124	9c39d381f96fb45ffcb826c90aaee8c6818767eabf44e757fa5518217611d7c7.exe	96
PID 3124 wrote to memory of 1588	3124	9c39d381f96fb45ffcb826c90aaee8c6818767eabf44e757fa5518217611d7c7.exe	96
PID 3124 wrote to memory of 4076	3124	9c39d381f96fb45ffcb826c90aaee8c6818767eabf44e757fa5518217611d7c7.exe	98
PID 3124 wrote to memory of 4076	3124	9c39d381f96fb45ffcb826c90aaee8c6818767eabf44e757fa5518217611d7c7.exe	98
PID 3124 wrote to memory of 4076	3124	9c39d381f96fb45ffcb826c90aaee8c6818767eabf44e757fa5518217611d7c7.exe	98
PID 3124 wrote to memory of 4076	3124	9c39d381f96fb45ffcb826c90aaee8c6818767eabf44e757fa5518217611d7c7.exe	98
PID 3124 wrote to memory of 4076	3124	9c39d381f96fb45ffcb826c90aaee8c6818767eabf44e757fa5518217611d7c7.exe	98
PID 3124 wrote to memory of 4076	3124	9c39d381f96fb45ffcb826c90aaee8c6818767eabf44e757fa5518217611d7c7.exe	98
PID 3124 wrote to memory of 4076	3124	9c39d381f96fb45ffcb826c90aaee8c6818767eabf44e757fa5518217611d7c7.exe	98
PID 3124 wrote to memory of 4076	3124	9c39d381f96fb45ffcb826c90aaee8c6818767eabf44e757fa5518217611d7c7.exe	98
PID 3124 wrote to memory of 4076	3124	9c39d381f96fb45ffcb826c90aaee8c6818767eabf44e757fa5518217611d7c7.exe	98
PID 3124 wrote to memory of 4076	3124	9c39d381f96fb45ffcb826c90aaee8c6818767eabf44e757fa5518217611d7c7.exe	98
PID 3124 wrote to memory of 4076	3124	9c39d381f96fb45ffcb826c90aaee8c6818767eabf44e757fa5518217611d7c7.exe	98
PID 3124 wrote to memory of 4076	3124	9c39d381f96fb45ffcb826c90aaee8c6818767eabf44e757fa5518217611d7c7.exe	98

C:\Users\Admin\AppData\Local\Temp\9c39d381f96fb45ffcb826c90aaee8c6818767eabf44e757fa5518217611d7c7.exe
"C:\Users\Admin\AppData\Local\Temp\9c39d381f96fb45ffcb826c90aaee8c6818767eabf44e757fa5518217611d7c7.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:3124
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\DpEFdRPYuiXBgv.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1748
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\DpEFdRPYuiXBgv" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE1B5.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1588
- C:\Users\Admin\AppData\Local\Temp\9c39d381f96fb45ffcb826c90aaee8c6818767eabf44e757fa5518217611d7c7.exe
  "C:\Users\Admin\AppData\Local\Temp\9c39d381f96fb45ffcb826c90aaee8c6818767eabf44e757fa5518217611d7c7.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:4076

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSI5IiBpbnN0YWxsZGF0ZXRpbWU9IjE3Mzg5NDY4ODkiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4MzQxOTM2NTgwOTAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI0ODUzMjM3Mjg1Ii8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection 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

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
39f5737b7a4c517319b9b8f4923a6e55

SHA1
5f79bf9f74e99f818744716dd7b92486019e8be8

SHA256
1a34ddc58a9441462398c226f236fe0049f326301d907db1f5d906197031aeab

SHA512
40e4ea5042427ab3f9fa34ac8613095daee9fac0d967049c726788dcd02fc215889c173170db0ec6f7248155580480861d0d931a7088f2e5c2ec7d2c055bb278

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_njar0mc1.223.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpE1B5.tmp

Filesize
1KB

MD5
0f09ebdeca1ce4c1e45e49ef2f38ca1f

SHA1
86927354b8764a7d608e83852314493b38746123

SHA256
82cae955fb12da30a129f8ef5c085d02d3276dbcc25c0ef8bab96e2e0e4fffab

SHA512
b9772cd7fe4fb3ecfd7de8f7b064ce833be04d765e61453cf4754cb4d1b3ed2b5e4609895fcf05ffb2ed54a2e3bc159f02249da3a7ef0497f0eb496b3fd78c25

Download Submit
memory/1748-43-0x00000000060A0000-0x00000000060EC000-memory.dmp

Filesize
304KB

Download
memory/1748-65-0x0000000007650000-0x0000000007658000-memory.dmp

Filesize
32KB

Download
memory/1748-63-0x0000000007570000-0x0000000007584000-memory.dmp

Filesize
80KB

Download
memory/1748-62-0x0000000007560000-0x000000000756E000-memory.dmp

Filesize
56KB

Download
memory/1748-61-0x0000000007530000-0x0000000007541000-memory.dmp

Filesize
68KB

Download
memory/1748-60-0x00000000075B0000-0x0000000007646000-memory.dmp

Filesize
600KB

Download
memory/1748-59-0x00000000073A0000-0x00000000073AA000-memory.dmp

Filesize
40KB

Download
memory/1748-57-0x0000000007970000-0x0000000007FEA000-memory.dmp

Filesize
6.5MB

Download
memory/1748-16-0x0000000002710000-0x0000000002746000-memory.dmp

Filesize
216KB

Download
memory/1748-58-0x0000000007330000-0x000000000734A000-memory.dmp

Filesize
104KB

Download
memory/1748-19-0x0000000005150000-0x0000000005778000-memory.dmp

Filesize
6.2MB

Download
memory/1748-18-0x0000000073D20000-0x00000000744D0000-memory.dmp

Filesize
7.7MB

Download
memory/1748-55-0x0000000006FD0000-0x0000000006FEE000-memory.dmp

Filesize
120KB

Download
memory/1748-56-0x00000000071F0000-0x0000000007293000-memory.dmp

Filesize
652KB

Download
memory/1748-44-0x00000000065D0000-0x0000000006602000-memory.dmp

Filesize
200KB

Download
memory/1748-30-0x0000000005990000-0x00000000059F6000-memory.dmp

Filesize
408KB

Download
memory/1748-45-0x00000000727F0000-0x000000007283C000-memory.dmp

Filesize
304KB

Download
memory/1748-29-0x0000000005820000-0x0000000005886000-memory.dmp

Filesize
408KB

Download
memory/1748-27-0x0000000073D20000-0x00000000744D0000-memory.dmp

Filesize
7.7MB

Download
memory/1748-26-0x0000000005780000-0x00000000057A2000-memory.dmp

Filesize
136KB

Download
memory/1748-40-0x0000000005A00000-0x0000000005D54000-memory.dmp

Filesize
3.3MB

Download
memory/1748-64-0x0000000007670000-0x000000000768A000-memory.dmp

Filesize
104KB

Download
memory/1748-68-0x0000000073D20000-0x00000000744D0000-memory.dmp

Filesize
7.7MB

Download
memory/1748-42-0x0000000006000000-0x000000000601E000-memory.dmp

Filesize
120KB

Download
memory/3124-4-0x0000000004ED0000-0x0000000004EDA000-memory.dmp

Filesize
40KB

Download
memory/3124-41-0x0000000073D20000-0x00000000744D0000-memory.dmp

Filesize
7.7MB

Download
memory/3124-2-0x00000000053E0000-0x0000000005984000-memory.dmp

Filesize
5.6MB

Download
memory/3124-1-0x0000000000380000-0x00000000004DA000-memory.dmp

Filesize
1.4MB

Download
memory/3124-0-0x0000000073D2E000-0x0000000073D2F000-memory.dmp

Filesize
4KB

Download
memory/3124-3-0x0000000004F10000-0x0000000004FA2000-memory.dmp

Filesize
584KB

Download
memory/3124-11-0x000000000D510000-0x000000000D5AC000-memory.dmp

Filesize
624KB

Download
memory/3124-10-0x00000000067B0000-0x0000000006870000-memory.dmp

Filesize
768KB

Download
memory/3124-9-0x0000000073D20000-0x00000000744D0000-memory.dmp

Filesize
7.7MB

Download
memory/3124-8-0x0000000073D2E000-0x0000000073D2F000-memory.dmp

Filesize
4KB

Download
memory/3124-6-0x0000000006980000-0x000000000699E000-memory.dmp

Filesize
120KB

Download
memory/3124-5-0x0000000073D20000-0x00000000744D0000-memory.dmp

Filesize
7.7MB

Download
memory/4076-22-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4076-83-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4076-21-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4076-69-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4076-75-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4076-28-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4076-20-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4076-82-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4076-84-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4076-87-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4076-93-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4076-94-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4076-101-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4076-102-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download