remcos | 79732670234d723da588faab41efbaeeb0708fdd15fa283a7322b91963d41b6e

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
09-09-2024 16:31

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General

Target

Quotation.exe
Size

899KB
MD5

9704ccf025eb5b76cf9485718a5ae9ba
SHA1

1a50054fb88f8667ea346a9cfd4ffa501ff491fe
SHA256

1c022ec2400c0c5197aa32cef3182a09a13213dedfe1db71fc18c6d399571ed9
SHA512

02a54924f0f6de0b7df557fc0606f372fb52d70dc950e843195aacbf6b1f12f2a0d0a879be79c5c2da4b2bd9a159a0948b1a3dc594ba9227a345cf792c55e038
SSDEEP

12288:qEXIarzS1y2y5bQqTIl7ahRvVDAJU+Ib9/xyDszk1rCMNcEBVhj2MVOEjctICdch:SaaBGvlh1+fIbTZklf32MsactInKkE

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

spacesave.duckdns.org:14645

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-RLABK3
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
4400	powershell.exe
4724	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-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation	Quotation.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4692 set thread context of 860	4692	Quotation.exe	99

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
3616	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4400	powershell.exe
4724	powershell.exe
4400	powershell.exe
4724	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4400	powershell.exe
Token: SeDebugPrivilege	4724	powershell.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 4692 wrote to memory of 4400	4692	Quotation.exe	93
PID 4692 wrote to memory of 4400	4692	Quotation.exe	93
PID 4692 wrote to memory of 4400	4692	Quotation.exe	93
PID 4692 wrote to memory of 4724	4692	Quotation.exe	95
PID 4692 wrote to memory of 4724	4692	Quotation.exe	95
PID 4692 wrote to memory of 4724	4692	Quotation.exe	95
PID 4692 wrote to memory of 3616	4692	Quotation.exe	97
PID 4692 wrote to memory of 3616	4692	Quotation.exe	97
PID 4692 wrote to memory of 3616	4692	Quotation.exe	97
PID 4692 wrote to memory of 860	4692	Quotation.exe	99
PID 4692 wrote to memory of 860	4692	Quotation.exe	99
PID 4692 wrote to memory of 860	4692	Quotation.exe	99
PID 4692 wrote to memory of 860	4692	Quotation.exe	99
PID 4692 wrote to memory of 860	4692	Quotation.exe	99
PID 4692 wrote to memory of 860	4692	Quotation.exe	99
PID 4692 wrote to memory of 860	4692	Quotation.exe	99
PID 4692 wrote to memory of 860	4692	Quotation.exe	99
PID 4692 wrote to memory of 860	4692	Quotation.exe	99
PID 4692 wrote to memory of 860	4692	Quotation.exe	99
PID 4692 wrote to memory of 860	4692	Quotation.exe	99
PID 4692 wrote to memory of 860	4692	Quotation.exe	99

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 use of WriteProcessMemory
PID:4692
- 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:4400
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\wCnzGs.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4724
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\wCnzGs" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC505.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:3616
- C:\Users\Admin\AppData\Local\Temp\Quotation.exe
  "C:\Users\Admin\AppData\Local\Temp\Quotation.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:860

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\Temp\__PSScriptPolicyTest_nc2uamhh.vda.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpC505.tmp

Filesize
1KB

MD5
6024f8e59f77577a336852fc8844e7b0

SHA1
e38f90ac955054cc385a2d371f0697d411d9e74e

SHA256
0ee45499fdb60edd624eb016dc9de94a44a9454d60e6acf54e50f8154a6f6749

SHA512
b203d3afcac7c0c498a28a223b404604bdece17526b3e20910cc54c2b0afc0fd28cbbbf1548f61f6f47a6d245d8e7456b682e24067d3804920c27f0417e6264c

Download Submit
memory/860-96-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/860-87-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/860-100-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/860-99-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/860-98-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/860-97-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/860-102-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/860-95-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/860-94-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/860-101-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/860-84-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/860-85-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/860-52-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/860-39-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/860-103-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/860-37-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/860-35-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4400-51-0x0000000006740000-0x000000000678C000-memory.dmp

Filesize
304KB

Download
memory/4400-80-0x0000000007B10000-0x0000000007B21000-memory.dmp

Filesize
68KB

Download
memory/4400-21-0x0000000005630000-0x0000000005652000-memory.dmp

Filesize
136KB

Download
memory/4400-22-0x0000000005750000-0x00000000057B6000-memory.dmp

Filesize
408KB

Download
memory/4400-25-0x0000000006070000-0x00000000063C4000-memory.dmp

Filesize
3.3MB

Download
memory/4400-23-0x0000000006000000-0x0000000006066000-memory.dmp

Filesize
408KB

Download
memory/4400-19-0x0000000075020000-0x00000000757D0000-memory.dmp

Filesize
7.7MB

Download
memory/4400-91-0x0000000075020000-0x00000000757D0000-memory.dmp

Filesize
7.7MB

Download
memory/4400-15-0x0000000001530000-0x0000000001566000-memory.dmp

Filesize
216KB

Download
memory/4400-50-0x00000000065D0000-0x00000000065EE000-memory.dmp

Filesize
120KB

Download
memory/4400-16-0x0000000075020000-0x00000000757D0000-memory.dmp

Filesize
7.7MB

Download
memory/4400-17-0x00000000058D0000-0x0000000005EF8000-memory.dmp

Filesize
6.2MB

Download
memory/4400-18-0x0000000075020000-0x00000000757D0000-memory.dmp

Filesize
7.7MB

Download
memory/4400-64-0x00000000758B0000-0x00000000758FC000-memory.dmp

Filesize
304KB

Download
memory/4400-82-0x0000000007B50000-0x0000000007B64000-memory.dmp

Filesize
80KB

Download
memory/4692-40-0x0000000075020000-0x00000000757D0000-memory.dmp

Filesize
7.7MB

Download
memory/4692-1-0x0000000000DD0000-0x0000000000EB6000-memory.dmp

Filesize
920KB

Download
memory/4692-2-0x0000000005F20000-0x00000000064C4000-memory.dmp

Filesize
5.6MB

Download
memory/4692-3-0x0000000005970000-0x0000000005A02000-memory.dmp

Filesize
584KB

Download
memory/4692-4-0x00000000058A0000-0x00000000058AA000-memory.dmp

Filesize
40KB

Download
memory/4692-5-0x0000000075020000-0x00000000757D0000-memory.dmp

Filesize
7.7MB

Download
memory/4692-6-0x0000000005B30000-0x0000000005B40000-memory.dmp

Filesize
64KB

Download
memory/4692-7-0x000000007502E000-0x000000007502F000-memory.dmp

Filesize
4KB

Download
memory/4692-8-0x0000000075020000-0x00000000757D0000-memory.dmp

Filesize
7.7MB

Download
memory/4692-9-0x0000000008400000-0x00000000084C0000-memory.dmp

Filesize
768KB

Download
memory/4692-10-0x000000000AAF0000-0x000000000AB8C000-memory.dmp

Filesize
624KB

Download
memory/4692-0-0x000000007502E000-0x000000007502F000-memory.dmp

Filesize
4KB

Download
memory/4724-24-0x0000000075020000-0x00000000757D0000-memory.dmp

Filesize
7.7MB

Download
memory/4724-81-0x0000000007CE0000-0x0000000007CEE000-memory.dmp

Filesize
56KB

Download
memory/4724-83-0x0000000007DF0000-0x0000000007E0A000-memory.dmp

Filesize
104KB

Download
memory/4724-90-0x0000000075020000-0x00000000757D0000-memory.dmp

Filesize
7.7MB

Download
memory/4724-86-0x0000000007DD0000-0x0000000007DD8000-memory.dmp

Filesize
32KB

Download
memory/4724-65-0x0000000007740000-0x000000000775E000-memory.dmp

Filesize
120KB

Download
memory/4724-54-0x00000000758B0000-0x00000000758FC000-memory.dmp

Filesize
304KB

Download
memory/4724-36-0x0000000075020000-0x00000000757D0000-memory.dmp

Filesize
7.7MB

Download
memory/4724-53-0x0000000007700000-0x0000000007732000-memory.dmp

Filesize
200KB

Download
memory/4724-79-0x0000000007D30000-0x0000000007DC6000-memory.dmp

Filesize
600KB

Download
memory/4724-78-0x0000000007B20000-0x0000000007B2A000-memory.dmp

Filesize
40KB

Download
memory/4724-76-0x00000000080F0000-0x000000000876A000-memory.dmp

Filesize
6.5MB

Download
memory/4724-77-0x0000000007AB0000-0x0000000007ACA000-memory.dmp

Filesize
104KB

Download
memory/4724-75-0x00000000079A0000-0x0000000007A43000-memory.dmp

Filesize
652KB

Download