remcos | 86e3a5e24146d1a42311819bc13c20ca51ca84849dac11f660e4f366a93c36cd

General

Target

SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe
Size

1.4MB
MD5

c608a1b47c4bf0891be778c247b1ded4
SHA1

1c96c2f12a60ea9d72d1f92e63a8ac5669793cc8
SHA256

86e3a5e24146d1a42311819bc13c20ca51ca84849dac11f660e4f366a93c36cd
SHA512

805eba6969f06a1a0a5825e59515ffcba37841173028bbfd477acaeb69cce39a2f894b81e288d130703f867e385b9c5e3d9cf2f3a668438d5f5b7040ca37a9ff
SSDEEP

24576:Cr74qlKPw+mfS5+CCGXuGP4s+c1SB9TOpTkykfdvfMA0lMTCh:m74UJasCpgHccnS4rfRf+w

Score

10^/10

remcos remotehost persistence rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

drremcoz1.ddns.net:1307

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
true
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
mouse_option
false
mutex
Rmc-51BI37
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
Executes dropped EXE 2 IoCs

Processes:

remcos.exeremcos.exe

pid process

544 remcos.exe
1956 remcos.exe
Loads dropped DLL 1 IoCs

Processes:

cmd.exe

pid process

1688 cmd.exe

pid	process
544	remcos.exe
1956	remcos.exe

pid	process
1688	cmd.exe

Adds Run key to start application 2 TTPs 8 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exeremcos.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\	SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Remcos = "\"C:\\ProgramData\\Remcos\\remcos.exe\""	SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\	remcos.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\Remcos = "\"C:\\ProgramData\\Remcos\\remcos.exe\""	remcos.exe
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\	remcos.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Remcos = "\"C:\\ProgramData\\Remcos\\remcos.exe\""	remcos.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\	SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\Remcos = "\"C:\\ProgramData\\Remcos\\remcos.exe\""	SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exeremcos.exe

description	pid	process	target process
PID 1228 set thread context of 1920	1228	SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe	SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe
PID 544 set thread context of 1956	544	remcos.exe	remcos.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exeschtasks.exe

pid process

688 schtasks.exe
1800 schtasks.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

remcos.exe

pid process

1956 remcos.exe

pid	process
688	schtasks.exe
1800	schtasks.exe

pid	process
1956	remcos.exe

Suspicious use of WriteProcessMemory 46 IoCs

Processes:

SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exeSecuriteInfo.com.Win32.PWSX-gen.4830.29679.exeWScript.execmd.exeremcos.exe

description	pid	process	target process
PID 1228 wrote to memory of 688	1228	SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe	schtasks.exe
PID 1228 wrote to memory of 688	1228	SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe	schtasks.exe
PID 1228 wrote to memory of 688	1228	SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe	schtasks.exe
PID 1228 wrote to memory of 688	1228	SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe	schtasks.exe
PID 1228 wrote to memory of 1920	1228	SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe	SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe
PID 1228 wrote to memory of 1920	1228	SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe	SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe
PID 1228 wrote to memory of 1920	1228	SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe	SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe
PID 1228 wrote to memory of 1920	1228	SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe	SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe
PID 1228 wrote to memory of 1920	1228	SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe	SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe
PID 1228 wrote to memory of 1920	1228	SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe	SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe
PID 1228 wrote to memory of 1920	1228	SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe	SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe
PID 1228 wrote to memory of 1920	1228	SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe	SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe
PID 1228 wrote to memory of 1920	1228	SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe	SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe
PID 1228 wrote to memory of 1920	1228	SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe	SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe
PID 1228 wrote to memory of 1920	1228	SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe	SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe
PID 1228 wrote to memory of 1920	1228	SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe	SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe
PID 1228 wrote to memory of 1920	1228	SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe	SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe
PID 1920 wrote to memory of 960	1920	SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe	WScript.exe
PID 1920 wrote to memory of 960	1920	SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe	WScript.exe
PID 1920 wrote to memory of 960	1920	SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe	WScript.exe
PID 1920 wrote to memory of 960	1920	SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe	WScript.exe
PID 960 wrote to memory of 1688	960	WScript.exe	cmd.exe
PID 960 wrote to memory of 1688	960	WScript.exe	cmd.exe
PID 960 wrote to memory of 1688	960	WScript.exe	cmd.exe
PID 960 wrote to memory of 1688	960	WScript.exe	cmd.exe
PID 1688 wrote to memory of 544	1688	cmd.exe	remcos.exe
PID 1688 wrote to memory of 544	1688	cmd.exe	remcos.exe
PID 1688 wrote to memory of 544	1688	cmd.exe	remcos.exe
PID 1688 wrote to memory of 544	1688	cmd.exe	remcos.exe
PID 544 wrote to memory of 1800	544	remcos.exe	schtasks.exe
PID 544 wrote to memory of 1800	544	remcos.exe	schtasks.exe
PID 544 wrote to memory of 1800	544	remcos.exe	schtasks.exe
PID 544 wrote to memory of 1800	544	remcos.exe	schtasks.exe
PID 544 wrote to memory of 1956	544	remcos.exe	remcos.exe
PID 544 wrote to memory of 1956	544	remcos.exe	remcos.exe
PID 544 wrote to memory of 1956	544	remcos.exe	remcos.exe
PID 544 wrote to memory of 1956	544	remcos.exe	remcos.exe
PID 544 wrote to memory of 1956	544	remcos.exe	remcos.exe
PID 544 wrote to memory of 1956	544	remcos.exe	remcos.exe
PID 544 wrote to memory of 1956	544	remcos.exe	remcos.exe
PID 544 wrote to memory of 1956	544	remcos.exe	remcos.exe
PID 544 wrote to memory of 1956	544	remcos.exe	remcos.exe
PID 544 wrote to memory of 1956	544	remcos.exe	remcos.exe
PID 544 wrote to memory of 1956	544	remcos.exe	remcos.exe
PID 544 wrote to memory of 1956	544	remcos.exe	remcos.exe
PID 544 wrote to memory of 1956	544	remcos.exe	remcos.exe

C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe
"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1228

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ioRUiODpW" /XML "C:\Users\Admin\AppData\Local\Temp\tmp82A8.tmp"
2⤵
- Creates scheduled task(s)
PID:688

C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.4830.29679.exe
"{path}"
2⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1920

C:\Windows\SysWOW64\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\install.vbs"
3⤵
- Suspicious use of WriteProcessMemory
PID:960

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c "C:\ProgramData\Remcos\remcos.exe"
4⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1688

C:\ProgramData\Remcos\remcos.exe
C:\ProgramData\Remcos\remcos.exe
5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:544

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ioRUiODpW" /XML "C:\Users\Admin\AppData\Local\Temp\tmp692F.tmp"
6⤵
- Creates scheduled task(s)
PID:1800

C:\ProgramData\Remcos\remcos.exe
"{path}"
6⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetWindowsHookEx
PID:1956

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

1

T1060

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\ProgramData\Remcos\remcos.exe
Filesize
1.4MB

MD5
c608a1b47c4bf0891be778c247b1ded4

SHA1
1c96c2f12a60ea9d72d1f92e63a8ac5669793cc8

SHA256
86e3a5e24146d1a42311819bc13c20ca51ca84849dac11f660e4f366a93c36cd

SHA512
805eba6969f06a1a0a5825e59515ffcba37841173028bbfd477acaeb69cce39a2f894b81e288d130703f867e385b9c5e3d9cf2f3a668438d5f5b7040ca37a9ff

Download Submit
C:\ProgramData\Remcos\remcos.exe
Filesize
1.4MB

MD5
c608a1b47c4bf0891be778c247b1ded4

SHA1
1c96c2f12a60ea9d72d1f92e63a8ac5669793cc8

SHA256
86e3a5e24146d1a42311819bc13c20ca51ca84849dac11f660e4f366a93c36cd

SHA512
805eba6969f06a1a0a5825e59515ffcba37841173028bbfd477acaeb69cce39a2f894b81e288d130703f867e385b9c5e3d9cf2f3a668438d5f5b7040ca37a9ff

Download Submit
C:\ProgramData\Remcos\remcos.exe
Filesize
1.4MB

MD5
c608a1b47c4bf0891be778c247b1ded4

SHA1
1c96c2f12a60ea9d72d1f92e63a8ac5669793cc8

SHA256
86e3a5e24146d1a42311819bc13c20ca51ca84849dac11f660e4f366a93c36cd

SHA512
805eba6969f06a1a0a5825e59515ffcba37841173028bbfd477acaeb69cce39a2f894b81e288d130703f867e385b9c5e3d9cf2f3a668438d5f5b7040ca37a9ff

Download Submit
C:\Users\Admin\AppData\Local\Temp\install.vbs
Filesize
386B

MD5
1ec6289c6fd4c2ded6b2836ed28cbeb5

SHA1
c4e08195e6c640eb8860acc03fda1d649b4fe070

SHA256
6efdc40f9eb217f879607614e928b65bff759e424f3efb31faceb2a043c32dc2

SHA512
20bc46f4dee22f75f15c402c7c2eaee60fff7dd92548050585571dcbefd59485cc249c06bc3f1aac7a138e5ae67c0c3918b46ffa24c8b0f1b092e2f6b6e21288

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp692F.tmp
Filesize
1KB

MD5
349d985f551bab55faf889de007d2bf6

SHA1
21c6de4f707609e214db1e911072d621f8f33564

SHA256
fc24c4414753d4df8e7fdefe63d87166a45d1b2fbd62f64eb624a082884c26c6

SHA512
45e7b673d7f83d7b4063d9422a8e865af03814713e86be926c570f5da0833ace761d69b98fd0ac784640efe36844466b3746b10faeb809c74ba5462de6b80eaf

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp82A8.tmp
Filesize
1KB

MD5
349d985f551bab55faf889de007d2bf6

SHA1
21c6de4f707609e214db1e911072d621f8f33564

SHA256
fc24c4414753d4df8e7fdefe63d87166a45d1b2fbd62f64eb624a082884c26c6

SHA512
45e7b673d7f83d7b4063d9422a8e865af03814713e86be926c570f5da0833ace761d69b98fd0ac784640efe36844466b3746b10faeb809c74ba5462de6b80eaf

Download Submit
\ProgramData\Remcos\remcos.exe
Filesize
1.4MB

MD5
c608a1b47c4bf0891be778c247b1ded4

SHA1
1c96c2f12a60ea9d72d1f92e63a8ac5669793cc8

SHA256
86e3a5e24146d1a42311819bc13c20ca51ca84849dac11f660e4f366a93c36cd

SHA512
805eba6969f06a1a0a5825e59515ffcba37841173028bbfd477acaeb69cce39a2f894b81e288d130703f867e385b9c5e3d9cf2f3a668438d5f5b7040ca37a9ff

Download Submit
memory/544-87-0x0000000000AF0000-0x0000000000C54000-memory.dmp

Filesize
1.4MB

Download
memory/544-85-0x0000000000000000-mapping.dmp

Download
memory/544-89-0x0000000000440000-0x0000000000452000-memory.dmp

Filesize
72KB

Download
memory/688-59-0x0000000000000000-mapping.dmp

Download
memory/960-78-0x0000000000000000-mapping.dmp

Download
memory/1228-58-0x00000000053B0000-0x000000000546C000-memory.dmp

Filesize
752KB

Download
memory/1228-54-0x00000000009E0000-0x0000000000B44000-memory.dmp

Filesize
1.4MB

Download
memory/1228-57-0x0000000005C60000-0x0000000005D5E000-memory.dmp

Filesize
1016KB

Download
memory/1228-56-0x0000000000970000-0x0000000000982000-memory.dmp

Filesize
72KB

Download
memory/1228-55-0x00000000760A1000-0x00000000760A3000-memory.dmp

Filesize
8KB

Download
memory/1688-82-0x0000000000000000-mapping.dmp

Download
memory/1800-90-0x0000000000000000-mapping.dmp

Download
memory/1920-62-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1920-79-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1920-77-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1920-74-0x00000000004327A4-mapping.dmp

Download
memory/1920-73-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1920-71-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1920-69-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1920-68-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1920-67-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1920-66-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1920-64-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1920-61-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1956-105-0x00000000004327A4-mapping.dmp

Download
memory/1956-109-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1956-110-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1956-111-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads