remcos | 1efe29ca00c9e7c69c46dc8139204716a36b6074647f3ec4fb06e2ac6576d496

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
24-01-2025 09:19

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General

Target

Quotation.exe
Size

990KB
MD5

ba0b6a9d6f493e8d718bbf796214900a
SHA1

0ac69c8653301edaca3beb1425b153689450a94e
SHA256

1efe29ca00c9e7c69c46dc8139204716a36b6074647f3ec4fb06e2ac6576d496
SHA512

ca401de6afbda29aec66bd0d03ab677790e3916b5b11c25a5326924c9a93df76dc82d909cc8bcf05db68e8753990ab4b8bb83016a6ef1cba43e0460113fd2195
SSDEEP

24576:2/J4LmzwMnIKb2RTysbOfUgZPLDxXWhFNA9V80Th6BqvRZe:MrDnIFReDfUgZPhVTM0pZ

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

2.58.56.182:2404

Attributes

audio_folder
MicRecords
audio_path
ApplicationPath
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-GM05WY
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
Remcos family
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
532	powershell.exe
1280	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	Quotation.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 536 set thread context of 4404	536	Quotation.exe	103

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	Quotation.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Quotation.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
3652	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
536	Quotation.exe
532	powershell.exe
1280	powershell.exe
536	Quotation.exe
536	Quotation.exe
536	Quotation.exe
532	powershell.exe
1280	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	536	Quotation.exe
Token: SeDebugPrivilege	532	powershell.exe
Token: SeDebugPrivilege	1280	powershell.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 536 wrote to memory of 532	536	Quotation.exe	96
PID 536 wrote to memory of 532	536	Quotation.exe	96
PID 536 wrote to memory of 532	536	Quotation.exe	96
PID 536 wrote to memory of 1280	536	Quotation.exe	98
PID 536 wrote to memory of 1280	536	Quotation.exe	98
PID 536 wrote to memory of 1280	536	Quotation.exe	98
PID 536 wrote to memory of 3652	536	Quotation.exe	100
PID 536 wrote to memory of 3652	536	Quotation.exe	100
PID 536 wrote to memory of 3652	536	Quotation.exe	100
PID 536 wrote to memory of 1436	536	Quotation.exe	102
PID 536 wrote to memory of 1436	536	Quotation.exe	102
PID 536 wrote to memory of 1436	536	Quotation.exe	102
PID 536 wrote to memory of 4404	536	Quotation.exe	103
PID 536 wrote to memory of 4404	536	Quotation.exe	103
PID 536 wrote to memory of 4404	536	Quotation.exe	103
PID 536 wrote to memory of 4404	536	Quotation.exe	103
PID 536 wrote to memory of 4404	536	Quotation.exe	103
PID 536 wrote to memory of 4404	536	Quotation.exe	103
PID 536 wrote to memory of 4404	536	Quotation.exe	103
PID 536 wrote to memory of 4404	536	Quotation.exe	103
PID 536 wrote to memory of 4404	536	Quotation.exe	103
PID 536 wrote to memory of 4404	536	Quotation.exe	103

C:\Users\Admin\AppData\Local\Temp\Quotation.exe
"C:\Users\Admin\AppData\Local\Temp\Quotation.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:536
- 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\Quotation.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:532
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\DUvXyihvzUp.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1280
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\DUvXyihvzUp" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFC32.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:3652
- C:\Users\Admin\AppData\Local\Temp\Quotation.exe
  "C:\Users\Admin\AppData\Local\Temp\Quotation.exe"
  2⤵
  PID:1436
- C:\Users\Admin\AppData\Local\Temp\Quotation.exe
  "C:\Users\Admin\AppData\Local\Temp\Quotation.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4404

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

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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
d97766860940c0f51f5808d5e1344144

SHA1
269e22a52287e9f2446d31043bb44d78cbfa11e6

SHA256
f9d794de4ef36d3d2e805dd5674372fe088f8ccb169f48ef9f2d683d549cbf34

SHA512
5707d5aee82a146e13f1ed7ffd5255f1e47576fa32c0eff1be5c94982338a6fcbda879bd4b573c5346ecfacfd720421d610c0569b907914fb23b3f45e9153cbf

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_a5pemkuj.iwn.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpFC32.tmp

Filesize
1KB

MD5
938651f4937d57ce0f279d916793a200

SHA1
3847aa9bd063b08213d4d786ad2316579628338f

SHA256
afbba9640c5d267a713d496554d6dbbfc89e6c5c54a9019fb3ca33dfba653269

SHA512
59d7ca8a6dc36a2a91a800fce63d6e5ced5f2576b6818ce5e2c277ee4541734631bd638f5f99010e52f71966781957c108783d88a2d967998f3f5c5588d0f7b9

Download Submit
memory/532-35-0x0000000074410000-0x0000000074BC0000-memory.dmp

Filesize
7.7MB

Download
memory/532-34-0x0000000005530000-0x0000000005884000-memory.dmp

Filesize
3.3MB

Download
memory/532-91-0x0000000074410000-0x0000000074BC0000-memory.dmp

Filesize
7.7MB

Download
memory/532-85-0x0000000007170000-0x0000000007178000-memory.dmp

Filesize
32KB

Download
memory/532-71-0x0000000006AF0000-0x0000000006B0E000-memory.dmp

Filesize
120KB

Download
memory/532-78-0x0000000006E50000-0x0000000006E6A000-memory.dmp

Filesize
104KB

Download
memory/532-54-0x0000000006AB0000-0x0000000006AE2000-memory.dmp

Filesize
200KB

Download
memory/532-15-0x0000000002230000-0x0000000002266000-memory.dmp

Filesize
216KB

Download
memory/532-16-0x0000000074410000-0x0000000074BC0000-memory.dmp

Filesize
7.7MB

Download
memory/532-17-0x0000000004C30000-0x0000000005258000-memory.dmp

Filesize
6.2MB

Download
memory/532-20-0x0000000074410000-0x0000000074BC0000-memory.dmp

Filesize
7.7MB

Download
memory/532-21-0x00000000054C0000-0x0000000005526000-memory.dmp

Filesize
408KB

Download
memory/532-19-0x0000000005260000-0x00000000052C6000-memory.dmp

Filesize
408KB

Download
memory/532-18-0x0000000004A60000-0x0000000004A82000-memory.dmp

Filesize
136KB

Download
memory/532-53-0x0000000006040000-0x000000000608C000-memory.dmp

Filesize
304KB

Download
memory/532-52-0x0000000005AF0000-0x0000000005B0E000-memory.dmp

Filesize
120KB

Download
memory/532-55-0x0000000074CC0000-0x0000000074D0C000-memory.dmp

Filesize
304KB

Download
memory/536-2-0x0000000004F30000-0x00000000054D4000-memory.dmp

Filesize
5.6MB

Download
memory/536-8-0x000000007441E000-0x000000007441F000-memory.dmp

Filesize
4KB

Download
memory/536-1-0x0000000000050000-0x000000000014E000-memory.dmp

Filesize
1016KB

Download
memory/536-5-0x0000000074410000-0x0000000074BC0000-memory.dmp

Filesize
7.7MB

Download
memory/536-7-0x0000000004EE0000-0x0000000004EFE000-memory.dmp

Filesize
120KB

Download
memory/536-3-0x0000000004A20000-0x0000000004AB2000-memory.dmp

Filesize
584KB

Download
memory/536-51-0x0000000074410000-0x0000000074BC0000-memory.dmp

Filesize
7.7MB

Download
memory/536-4-0x0000000004A10000-0x0000000004A1A000-memory.dmp

Filesize
40KB

Download
memory/536-9-0x0000000074410000-0x0000000074BC0000-memory.dmp

Filesize
7.7MB

Download
memory/536-0-0x000000007441E000-0x000000007441F000-memory.dmp

Filesize
4KB

Download
memory/536-10-0x000000000A0C0000-0x000000000A184000-memory.dmp

Filesize
784KB

Download
memory/536-6-0x0000000004CF0000-0x0000000004D8C000-memory.dmp

Filesize
624KB

Download
memory/1280-82-0x0000000007660000-0x000000000766E000-memory.dmp

Filesize
56KB

Download
memory/1280-56-0x0000000074CC0000-0x0000000074D0C000-memory.dmp

Filesize
304KB

Download
memory/1280-22-0x0000000074410000-0x0000000074BC0000-memory.dmp

Filesize
7.7MB

Download
memory/1280-76-0x00000000072F0000-0x0000000007393000-memory.dmp

Filesize
652KB

Download
memory/1280-77-0x0000000007A70000-0x00000000080EA000-memory.dmp

Filesize
6.5MB

Download
memory/1280-23-0x0000000074410000-0x0000000074BC0000-memory.dmp

Filesize
7.7MB

Download
memory/1280-79-0x00000000074A0000-0x00000000074AA000-memory.dmp

Filesize
40KB

Download
memory/1280-80-0x00000000076B0000-0x0000000007746000-memory.dmp

Filesize
600KB

Download
memory/1280-81-0x0000000007630000-0x0000000007641000-memory.dmp

Filesize
68KB

Download
memory/1280-92-0x0000000074410000-0x0000000074BC0000-memory.dmp

Filesize
7.7MB

Download
memory/1280-83-0x0000000007670000-0x0000000007684000-memory.dmp

Filesize
80KB

Download
memory/1280-84-0x0000000007770000-0x000000000778A000-memory.dmp

Filesize
104KB

Download
memory/1280-36-0x0000000074410000-0x0000000074BC0000-memory.dmp

Filesize
7.7MB

Download
memory/4404-97-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4404-95-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4404-46-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4404-48-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4404-47-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4404-94-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4404-49-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4404-96-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4404-93-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4404-98-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4404-99-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4404-100-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4404-101-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4404-102-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4404-103-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4404-104-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download