remcos | b672afc774d2c57bce68ffea72a0236019a2bfe9fdae61b6deac4906f9dff2ce

Analysis

max time kernel
147s
max time network
144s
platform
windows10-2004_x64
resource
win10v2004-20250211-en
resource tags

arch:x64arch:x86image:win10v2004-20250211-enlocale:en-usos:windows10-2004-x64system
submitted
13-02-2025 12:37

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General

Target

Quote.scr
Size

984KB
MD5

09d1f74cf4434fd7ff3ee83a2479d7a9
SHA1

d70d3164f2fe24b4263e56ff2df171c15110e33b
SHA256

9f05db230894256a6be6bf1b5b523894e621cf0b43632c0465c76717058d3ebb
SHA512

7e8aa100fb7da347d56b9f34a87a91e5dfe71fa370f9dd42f571e70a37b779819253682dfe879224e06427b0ff10f4951e5b31648945011fd44584d480b062bb
SSDEEP

24576:3IHzeLasydPeQ7h+ue7k+i4ZcPU33R1f4VTPx4pty9A:YaLaVJeQ0ue7Tcs33R14Fx4pty9A

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
388	powershell.exe
1536	powershell.exe

Downloads MZ/PE file 1 IoCs

flow	pid	Process
47	4524	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-1-5-21-1318997816-2171176372-1451785247-1000\Control Panel\International\Geo\Nation	Quote.scr

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4196 set thread context of 4688	4196	Quote.scr	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 6 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	MicrosoftEdgeUpdate.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Quote.scr
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	Quote.scr

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
4960	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
5108	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
4196	Quote.scr
4196	Quote.scr
4196	Quote.scr
4196	Quote.scr
388	powershell.exe
388	powershell.exe
1536	powershell.exe
4196	Quote.scr
1536	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4196	Quote.scr
Token: SeDebugPrivilege	388	powershell.exe
Token: SeDebugPrivilege	1536	powershell.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 4196 wrote to memory of 388	4196	Quote.scr	90
PID 4196 wrote to memory of 388	4196	Quote.scr	90
PID 4196 wrote to memory of 388	4196	Quote.scr	90
PID 4196 wrote to memory of 1536	4196	Quote.scr	92
PID 4196 wrote to memory of 1536	4196	Quote.scr	92
PID 4196 wrote to memory of 1536	4196	Quote.scr	92
PID 4196 wrote to memory of 5108	4196	Quote.scr	94
PID 4196 wrote to memory of 5108	4196	Quote.scr	94
PID 4196 wrote to memory of 5108	4196	Quote.scr	94
PID 4196 wrote to memory of 4688	4196	Quote.scr	96
PID 4196 wrote to memory of 4688	4196	Quote.scr	96
PID 4196 wrote to memory of 4688	4196	Quote.scr	96
PID 4196 wrote to memory of 4688	4196	Quote.scr	96
PID 4196 wrote to memory of 4688	4196	Quote.scr	96
PID 4196 wrote to memory of 4688	4196	Quote.scr	96
PID 4196 wrote to memory of 4688	4196	Quote.scr	96
PID 4196 wrote to memory of 4688	4196	Quote.scr	96
PID 4196 wrote to memory of 4688	4196	Quote.scr	96
PID 4196 wrote to memory of 4688	4196	Quote.scr	96

C:\Users\Admin\AppData\Local\Temp\Quote.scr
"C:\Users\Admin\AppData\Local\Temp\Quote.scr" /S
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:4196
- 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\Quote.scr"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:388
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\YPabBLvsNvjDRI.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1536
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\YPabBLvsNvjDRI" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBA91.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:5108
- C:\Users\Admin\AppData\Local\Temp\Quote.scr
  "C:\Users\Admin\AppData\Local\Temp\Quote.scr"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4688

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSIxIiBpbnN0YWxsZGF0ZXRpbWU9IjE3MzkyODMzNzEiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4Mzc1NDE5Mjc1MzAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI1Nzc0NTIwNDM0Ii8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:4960

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:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
3d086a433708053f9bf9523e1d87a4e8

SHA1
b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28

SHA256
6f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69

SHA512
931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
18KB

MD5
88d6342343987cc8b7d91dec647056f2

SHA1
6b5b90f57c7ce6880ebec1b8c058b691b21dc40f

SHA256
ec8c5109e53e5579e99509d3655c82418c145b5774025ea3e47ac9a80b1bcddf

SHA512
065fd5a948288138e65730768ab3a2b6b2466e8e6aa86370e2114bbbdc883064ebf1acac128c5b2f72cbbb4dd6ccbe7c41bc3dd2ad956c8b51e97f42869d26ba

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_g0w5jiym.eys.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpBA91.tmp

Filesize
1KB

MD5
5acd59bc249784f861f5c6ecd68a933d

SHA1
386a0a001dbad3bc3387ce0ece026b94d96ef465

SHA256
f74efd05faada89fb996f6b438e8409313334e0f094e69d4e86c5fe333c482ee

SHA512
f0e34290f15cb5b1399eb5ed201b00d4d6714b8c565ce6d3e1c1acb61037e02dc69c529560544bc7f33caa187ebc26af6ff1b29e82fbad0bcab94b9608ba1daa

Download Submit
memory/388-84-0x00000000070F0000-0x0000000007101000-memory.dmp

Filesize
68KB

Download
memory/388-87-0x0000000007230000-0x000000000724A000-memory.dmp

Filesize
104KB

Download
memory/388-94-0x0000000073B20000-0x00000000742D0000-memory.dmp

Filesize
7.7MB

Download
memory/388-86-0x0000000007130000-0x0000000007144000-memory.dmp

Filesize
80KB

Download
memory/388-81-0x0000000006EF0000-0x0000000006F0A000-memory.dmp

Filesize
104KB

Download
memory/388-80-0x0000000007530000-0x0000000007BAA000-memory.dmp

Filesize
6.5MB

Download
memory/388-57-0x0000000006D70000-0x0000000006DA2000-memory.dmp

Filesize
200KB

Download
memory/388-11-0x00000000022C0000-0x00000000022F6000-memory.dmp

Filesize
216KB

Download
memory/388-13-0x0000000073B20000-0x00000000742D0000-memory.dmp

Filesize
7.7MB

Download
memory/388-12-0x0000000004E70000-0x0000000005498000-memory.dmp

Filesize
6.2MB

Download
memory/388-14-0x0000000073B20000-0x00000000742D0000-memory.dmp

Filesize
7.7MB

Download
memory/388-15-0x0000000073B20000-0x00000000742D0000-memory.dmp

Filesize
7.7MB

Download
memory/388-16-0x0000000004C30000-0x0000000004C52000-memory.dmp

Filesize
136KB

Download
memory/388-22-0x0000000004CD0000-0x0000000004D36000-memory.dmp

Filesize
408KB

Download
memory/388-23-0x00000000055A0000-0x0000000005606000-memory.dmp

Filesize
408KB

Download
memory/388-58-0x000000006EB80000-0x000000006EBCC000-memory.dmp

Filesize
304KB

Download
memory/388-31-0x0000000005610000-0x0000000005964000-memory.dmp

Filesize
3.3MB

Download
memory/388-33-0x0000000005BA0000-0x0000000005BBE000-memory.dmp

Filesize
120KB

Download
memory/388-69-0x0000000006D50000-0x0000000006D6E000-memory.dmp

Filesize
120KB

Download
memory/388-35-0x0000000005C40000-0x0000000005C8C000-memory.dmp

Filesize
304KB

Download
memory/388-83-0x0000000007170000-0x0000000007206000-memory.dmp

Filesize
600KB

Download
memory/1536-95-0x0000000073B20000-0x00000000742D0000-memory.dmp

Filesize
7.7MB

Download
memory/1536-34-0x0000000073B20000-0x00000000742D0000-memory.dmp

Filesize
7.7MB

Download
memory/1536-82-0x0000000007060000-0x000000000706A000-memory.dmp

Filesize
40KB

Download
memory/1536-88-0x0000000007310000-0x0000000007318000-memory.dmp

Filesize
32KB

Download
memory/1536-68-0x000000006EB80000-0x000000006EBCC000-memory.dmp

Filesize
304KB

Download
memory/1536-79-0x0000000006EA0000-0x0000000006F43000-memory.dmp

Filesize
652KB

Download
memory/1536-85-0x0000000007220000-0x000000000722E000-memory.dmp

Filesize
56KB

Download
memory/4196-3-0x0000000005960000-0x00000000059F2000-memory.dmp

Filesize
584KB

Download
memory/4196-5-0x0000000073B20000-0x00000000742D0000-memory.dmp

Filesize
7.7MB

Download
memory/4196-1-0x0000000000E80000-0x0000000000F7C000-memory.dmp

Filesize
1008KB

Download
memory/4196-4-0x0000000005950000-0x000000000595A000-memory.dmp

Filesize
40KB

Download
memory/4196-6-0x0000000007330000-0x000000000734E000-memory.dmp

Filesize
120KB

Download
memory/4196-10-0x0000000009930000-0x00000000099CC000-memory.dmp

Filesize
624KB

Download
memory/4196-9-0x000000000AE70000-0x000000000AF34000-memory.dmp

Filesize
784KB

Download
memory/4196-8-0x0000000073B20000-0x00000000742D0000-memory.dmp

Filesize
7.7MB

Download
memory/4196-2-0x0000000005E70000-0x0000000006414000-memory.dmp

Filesize
5.6MB

Download
memory/4196-0-0x0000000073B2E000-0x0000000073B2F000-memory.dmp

Filesize
4KB

Download
memory/4196-51-0x0000000073B20000-0x00000000742D0000-memory.dmp

Filesize
7.7MB

Download
memory/4196-7-0x0000000073B2E000-0x0000000073B2F000-memory.dmp

Filesize
4KB

Download
memory/4688-102-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4688-98-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4688-40-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4688-103-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4688-38-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4688-37-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4688-52-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4688-97-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4688-39-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4688-99-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4688-100-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4688-101-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4688-53-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4688-54-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4688-104-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download