remcos | 6704e5c8b340f0b22b506d04e5b61317fa2cccb7138c270a5c3c6c26646a96a4

Analysis

max time kernel
298s
max time network
287s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
30-12-2024 11:23

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General

Target

Quotation.exe
Size

958KB
MD5

56bf061d982087efb8e2df5789da93db
SHA1

ad6a49a4dd091fc78f8d5f09d8b2b82b39ef3670
SHA256

3129730bf6dd9fe71cb30b1ed34ba03b44ab76a820fec8a83cf08c6acce09a56
SHA512

81cb03129a789907001eb4fd2c4c4a2db4a5ba742ac8f90750b127283b83c1747760a5c4220a39a2bcc59e570d2fe913e2ec7fb7662fe501703a4d5679750523
SSDEEP

24576:vzraQlDkENJ0aElSCubzae03sA3nD/uRYy:3aUoENJelSlae08A3nTuuy

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

185.241.208.87:2404

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-7DRXD9
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
3572	powershell.exe
1868	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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	Quotation.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1876 set thread context of 1004	1876	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	powershell.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	Quotation.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
2256	schtasks.exe

Suspicious behavior: EnumeratesProcesses 13 IoCs

pid	Process
1876	Quotation.exe
1876	Quotation.exe
1876	Quotation.exe
1876	Quotation.exe
1876	Quotation.exe
1876	Quotation.exe
1868	powershell.exe
3572	powershell.exe
1876	Quotation.exe
1876	Quotation.exe
1876	Quotation.exe
1868	powershell.exe
3572	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1876	Quotation.exe
Token: SeDebugPrivilege	1868	powershell.exe
Token: SeDebugPrivilege	3572	powershell.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 1876 wrote to memory of 1868	1876	Quotation.exe	96
PID 1876 wrote to memory of 1868	1876	Quotation.exe	96
PID 1876 wrote to memory of 1868	1876	Quotation.exe	96
PID 1876 wrote to memory of 3572	1876	Quotation.exe	98
PID 1876 wrote to memory of 3572	1876	Quotation.exe	98
PID 1876 wrote to memory of 3572	1876	Quotation.exe	98
PID 1876 wrote to memory of 2256	1876	Quotation.exe	100
PID 1876 wrote to memory of 2256	1876	Quotation.exe	100
PID 1876 wrote to memory of 2256	1876	Quotation.exe	100
PID 1876 wrote to memory of 1424	1876	Quotation.exe	102
PID 1876 wrote to memory of 1424	1876	Quotation.exe	102
PID 1876 wrote to memory of 1424	1876	Quotation.exe	102
PID 1876 wrote to memory of 1004	1876	Quotation.exe	103
PID 1876 wrote to memory of 1004	1876	Quotation.exe	103
PID 1876 wrote to memory of 1004	1876	Quotation.exe	103
PID 1876 wrote to memory of 1004	1876	Quotation.exe	103
PID 1876 wrote to memory of 1004	1876	Quotation.exe	103
PID 1876 wrote to memory of 1004	1876	Quotation.exe	103
PID 1876 wrote to memory of 1004	1876	Quotation.exe	103
PID 1876 wrote to memory of 1004	1876	Quotation.exe	103
PID 1876 wrote to memory of 1004	1876	Quotation.exe	103
PID 1876 wrote to memory of 1004	1876	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:1876
- 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:1868
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\dujreQplfpYHR.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3572
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\dujreQplfpYHR" /XML "C:\Users\Admin\AppData\Local\Temp\tmp54A.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2256
- C:\Users\Admin\AppData\Local\Temp\Quotation.exe
  "C:\Users\Admin\AppData\Local\Temp\Quotation.exe"
  2⤵
  PID:1424
- C:\Users\Admin\AppData\Local\Temp\Quotation.exe
  "C:\Users\Admin\AppData\Local\Temp\Quotation.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1004

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
4a9f31b2e6ec2f26f1a1eefed57077f3

SHA1
041b94dd4194adc20a1b8f678a1447b0c5ee504a

SHA256
2ffb2cf9682feac5997464db5898b9c723c1bfe7cec94146dce81eb8844d1817

SHA512
7c1b3a39d7e40c914e266d2b2380341cd1643f789a4dd3af726b84df9a7cfcbaa64003a17320ea536bd97504ff961a13aabaf833d308df4f58b804ff94beaa0b

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_m3ywdtyk.uxu.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp54A.tmp

Filesize
1KB

MD5
ab9ce7024f5572d8461cfdfc0b22dc6d

SHA1
5b9f4fc7ccece766f389629a8181fed44ed70cbd

SHA256
407200f742fe04542af5aa71b26c7527efd4b14b8a57f112d82e2cbfcc771734

SHA512
b4ec9a9442e067f5bd074bfe44b2554dcd0611fa5ad52418becc07ced5bcaf2a33f30728e11e376a59602d629bbe3460dbff6c3181b12a7c9b1d2391f87f1e74

Download Submit
memory/1004-99-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1004-55-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1004-115-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1004-114-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1004-113-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1004-112-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1004-111-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1004-110-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1004-109-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1004-108-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1004-107-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1004-106-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1004-105-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1004-104-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1004-103-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1004-102-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1004-44-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1004-45-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1004-100-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1004-101-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1004-98-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1004-49-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1004-48-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1004-58-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1004-56-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1004-54-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1868-19-0x0000000004AE0000-0x0000000004B02000-memory.dmp

Filesize
136KB

Download
memory/1868-21-0x0000000005490000-0x00000000054F6000-memory.dmp

Filesize
408KB

Download
memory/1868-52-0x0000000005AB0000-0x0000000005ACE000-memory.dmp

Filesize
120KB

Download
memory/1868-16-0x00000000751A0000-0x0000000075950000-memory.dmp

Filesize
7.7MB

Download
memory/1868-59-0x0000000006C30000-0x0000000006C62000-memory.dmp

Filesize
200KB

Download
memory/1868-15-0x0000000002180000-0x00000000021B6000-memory.dmp

Filesize
216KB

Download
memory/1868-85-0x0000000007050000-0x00000000070E6000-memory.dmp

Filesize
600KB

Download
memory/1868-18-0x00000000751A0000-0x0000000075950000-memory.dmp

Filesize
7.7MB

Download
memory/1868-20-0x0000000004D00000-0x0000000004D66000-memory.dmp

Filesize
408KB

Download
memory/1868-53-0x0000000005C20000-0x0000000005C6C000-memory.dmp

Filesize
304KB

Download
memory/1868-60-0x0000000075A50000-0x0000000075A9C000-memory.dmp

Filesize
304KB

Download
memory/1868-82-0x0000000007420000-0x0000000007A9A000-memory.dmp

Filesize
6.5MB

Download
memory/1868-83-0x0000000006DD0000-0x0000000006DEA000-memory.dmp

Filesize
104KB

Download
memory/1868-84-0x0000000006E40000-0x0000000006E4A000-memory.dmp

Filesize
40KB

Download
memory/1868-40-0x00000000751A0000-0x0000000075950000-memory.dmp

Filesize
7.7MB

Download
memory/1868-97-0x00000000751A0000-0x0000000075950000-memory.dmp

Filesize
7.7MB

Download
memory/1868-88-0x0000000007010000-0x0000000007024000-memory.dmp

Filesize
80KB

Download
memory/1876-3-0x00000000055E0000-0x0000000005672000-memory.dmp

Filesize
584KB

Download
memory/1876-6-0x0000000005820000-0x00000000058BC000-memory.dmp

Filesize
624KB

Download
memory/1876-7-0x0000000007C60000-0x0000000007C78000-memory.dmp

Filesize
96KB

Download
memory/1876-2-0x0000000005AF0000-0x0000000006094000-memory.dmp

Filesize
5.6MB

Download
memory/1876-8-0x00000000751AE000-0x00000000751AF000-memory.dmp

Filesize
4KB

Download
memory/1876-1-0x0000000000A70000-0x0000000000B66000-memory.dmp

Filesize
984KB

Download
memory/1876-9-0x00000000751A0000-0x0000000075950000-memory.dmp

Filesize
7.7MB

Download
memory/1876-10-0x0000000007D70000-0x0000000007E34000-memory.dmp

Filesize
784KB

Download
memory/1876-0-0x00000000751AE000-0x00000000751AF000-memory.dmp

Filesize
4KB

Download
memory/1876-51-0x00000000751A0000-0x0000000075950000-memory.dmp

Filesize
7.7MB

Download
memory/1876-4-0x0000000005560000-0x000000000556A000-memory.dmp

Filesize
40KB

Download
memory/1876-5-0x00000000751A0000-0x0000000075950000-memory.dmp

Filesize
7.7MB

Download
memory/3572-86-0x0000000007730000-0x0000000007741000-memory.dmp

Filesize
68KB

Download
memory/3572-81-0x00000000071E0000-0x0000000007283000-memory.dmp

Filesize
652KB

Download
memory/3572-80-0x0000000007170000-0x000000000718E000-memory.dmp

Filesize
120KB

Download
memory/3572-61-0x0000000075A50000-0x0000000075A9C000-memory.dmp

Filesize
304KB

Download
memory/3572-39-0x0000000005C10000-0x0000000005F64000-memory.dmp

Filesize
3.3MB

Download
memory/3572-17-0x00000000054E0000-0x0000000005B08000-memory.dmp

Filesize
6.2MB

Download
memory/3572-23-0x00000000751A0000-0x0000000075950000-memory.dmp

Filesize
7.7MB

Download
memory/3572-46-0x00000000751A0000-0x0000000075950000-memory.dmp

Filesize
7.7MB

Download
memory/3572-50-0x00000000751A0000-0x0000000075950000-memory.dmp

Filesize
7.7MB

Download
memory/3572-87-0x0000000007760000-0x000000000776E000-memory.dmp

Filesize
56KB

Download
memory/3572-96-0x00000000751A0000-0x0000000075950000-memory.dmp

Filesize
7.7MB

Download
memory/3572-90-0x0000000007850000-0x0000000007858000-memory.dmp

Filesize
32KB

Download
memory/3572-89-0x0000000007870000-0x000000000788A000-memory.dmp

Filesize
104KB

Download