remcos | b72df5535e69fb7ea6dd6638059825c267e176baa3213a2f513d76d2455f1776

General

Target

Qotation.exe
Size

330KB
MD5

28b8acaf74bd16212a1d2fb732e88c6d
SHA1

993b52b65b755aa59f4d1f4390e3e0cd6c2ffacf
SHA256

b72df5535e69fb7ea6dd6638059825c267e176baa3213a2f513d76d2455f1776
SHA512

0da3543e18958730fe92ebc318fdcc7f8744a37bbadaea096f3a327b4207efc8a5b67819284aa7bb9fd293122c4daed5acbcb27842a45cfab6b10dfc4a88ed59

Score

10^/10

remcos persistence rat

Malware Config

Extracted

Family

remcos

C2

whatgodcannotdodoestnotexist.duckdns.org:2889

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

980 remcos.exe
1548 remcos.exe
Loads dropped DLL 2 IoCs

Processes:

cmd.exe

pid process

848 cmd.exe
848 cmd.exe

pid	process
980	remcos.exe
1548	remcos.exe

pid	process
848	cmd.exe
848	cmd.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Qotation.exeremcos.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Windows\CurrentVersion\Run\	Qotation.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Windows\CurrentVersion\Run\Remcos = "\"C:\\Users\\Admin\\AppData\\Roaming\\Remcos\\remcos.exe\""	Qotation.exe
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Windows\CurrentVersion\Run\	remcos.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Windows\CurrentVersion\Run\Remcos = "\"C:\\Users\\Admin\\AppData\\Roaming\\Remcos\\remcos.exe\""	remcos.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

Qotation.exeremcos.exe

description	pid	process	target process
PID 792 set thread context of 1996	792	Qotation.exe	Qotation.exe
PID 980 set thread context of 1548	980	remcos.exe	remcos.exe

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

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

1988 schtasks.exe
Suspicious behavior: MapViewOfSection 2 IoCs

Processes:

Qotation.exeremcos.exe

pid process

792 Qotation.exe
980 remcos.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

remcos.exe

pid process

1548 remcos.exe

pid	process
1988	schtasks.exe

pid	process
792	Qotation.exe
980	remcos.exe

pid	process
1548	remcos.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

Qotation.execmd.exeQotation.exeWScript.execmd.exeremcos.exe

description	pid	process	target process
PID 792 wrote to memory of 2036	792	Qotation.exe	cmd.exe
PID 792 wrote to memory of 2036	792	Qotation.exe	cmd.exe
PID 792 wrote to memory of 2036	792	Qotation.exe	cmd.exe
PID 792 wrote to memory of 2036	792	Qotation.exe	cmd.exe
PID 792 wrote to memory of 1996	792	Qotation.exe	Qotation.exe
PID 792 wrote to memory of 1996	792	Qotation.exe	Qotation.exe
PID 792 wrote to memory of 1996	792	Qotation.exe	Qotation.exe
PID 792 wrote to memory of 1996	792	Qotation.exe	Qotation.exe
PID 792 wrote to memory of 1996	792	Qotation.exe	Qotation.exe
PID 2036 wrote to memory of 1988	2036	cmd.exe	schtasks.exe
PID 2036 wrote to memory of 1988	2036	cmd.exe	schtasks.exe
PID 2036 wrote to memory of 1988	2036	cmd.exe	schtasks.exe
PID 2036 wrote to memory of 1988	2036	cmd.exe	schtasks.exe
PID 1996 wrote to memory of 1784	1996	Qotation.exe	WScript.exe
PID 1996 wrote to memory of 1784	1996	Qotation.exe	WScript.exe
PID 1996 wrote to memory of 1784	1996	Qotation.exe	WScript.exe
PID 1996 wrote to memory of 1784	1996	Qotation.exe	WScript.exe
PID 1784 wrote to memory of 848	1784	WScript.exe	cmd.exe
PID 1784 wrote to memory of 848	1784	WScript.exe	cmd.exe
PID 1784 wrote to memory of 848	1784	WScript.exe	cmd.exe
PID 1784 wrote to memory of 848	1784	WScript.exe	cmd.exe
PID 848 wrote to memory of 980	848	cmd.exe	remcos.exe
PID 848 wrote to memory of 980	848	cmd.exe	remcos.exe
PID 848 wrote to memory of 980	848	cmd.exe	remcos.exe
PID 848 wrote to memory of 980	848	cmd.exe	remcos.exe
PID 980 wrote to memory of 1548	980	remcos.exe	remcos.exe
PID 980 wrote to memory of 1548	980	remcos.exe	remcos.exe
PID 980 wrote to memory of 1548	980	remcos.exe	remcos.exe
PID 980 wrote to memory of 1548	980	remcos.exe	remcos.exe
PID 980 wrote to memory of 1548	980	remcos.exe	remcos.exe

C:\Users\Admin\AppData\Local\Temp\Qotation.exe
"C:\Users\Admin\AppData\Local\Temp\Qotation.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:792

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /Create /TN name /XML "C:\Users\Admin\AppData\Local\Temp\955056a4c04c43a3ad2c1d5c7e436ce5.xml"
2⤵
- Suspicious use of WriteProcessMemory
PID:2036

C:\Windows\SysWOW64\schtasks.exe
schtasks /Create /TN name /XML "C:\Users\Admin\AppData\Local\Temp\955056a4c04c43a3ad2c1d5c7e436ce5.xml"
3⤵
- Creates scheduled task(s)
PID:1988

C:\Users\Admin\AppData\Local\Temp\Qotation.exe
"C:\Users\Admin\AppData\Local\Temp\Qotation.exe"
2⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1996

C:\Windows\SysWOW64\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\install.vbs"
3⤵
- Suspicious use of WriteProcessMemory
PID:1784

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c "C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe"
4⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:848

C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe
C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe
5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:980

C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe
C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe
6⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetWindowsHookEx
PID:1548

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

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\955056a4c04c43a3ad2c1d5c7e436ce5.xml
MD5
a035055e1c80bc652520df45650c690f

SHA1
37b8364ad46e17199eb5a7ee89bb506bba384adb

SHA256
2b9948d34674d0fc0f9cb290da8298441b56205f6e341e3cfa1954df42c2b655

SHA512
678279d1bfc8a71c27a5a2c3afa5fd266882a62610863a3e4ebc2489f17827ed4c680c89e6b8b52621320500294d2df9888259ccdc5d38def43e739c1f325fc1

Download Submit
C:\Users\Admin\AppData\Local\Temp\install.vbs
MD5
b92d64fe5b1d1f59df4b738262aea8df

SHA1
c8fb1981759c2d9bb2ec91b705985fba5fc7af63

SHA256
fa20e9aab03dc8e9f1910aaf0cf42662379fa16ae3a22642084fb97fa3d4f83a

SHA512
2566248b93c0cfb0414f033b8dd18bbd4f88180093eac2861107289bcb4ee160f9593706ff1f7d1f2e4ecea430d67a5a2897551a4f9ebd82b707243e300520e2

Download Submit
C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe
MD5
28b8acaf74bd16212a1d2fb732e88c6d

SHA1
993b52b65b755aa59f4d1f4390e3e0cd6c2ffacf

SHA256
b72df5535e69fb7ea6dd6638059825c267e176baa3213a2f513d76d2455f1776

SHA512
0da3543e18958730fe92ebc318fdcc7f8744a37bbadaea096f3a327b4207efc8a5b67819284aa7bb9fd293122c4daed5acbcb27842a45cfab6b10dfc4a88ed59

Download Submit
C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe
MD5
28b8acaf74bd16212a1d2fb732e88c6d

SHA1
993b52b65b755aa59f4d1f4390e3e0cd6c2ffacf

SHA256
b72df5535e69fb7ea6dd6638059825c267e176baa3213a2f513d76d2455f1776

SHA512
0da3543e18958730fe92ebc318fdcc7f8744a37bbadaea096f3a327b4207efc8a5b67819284aa7bb9fd293122c4daed5acbcb27842a45cfab6b10dfc4a88ed59

Download Submit
C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe
MD5
28b8acaf74bd16212a1d2fb732e88c6d

SHA1
993b52b65b755aa59f4d1f4390e3e0cd6c2ffacf

SHA256
b72df5535e69fb7ea6dd6638059825c267e176baa3213a2f513d76d2455f1776

SHA512
0da3543e18958730fe92ebc318fdcc7f8744a37bbadaea096f3a327b4207efc8a5b67819284aa7bb9fd293122c4daed5acbcb27842a45cfab6b10dfc4a88ed59

Download Submit
\Users\Admin\AppData\Roaming\Remcos\remcos.exe
MD5
28b8acaf74bd16212a1d2fb732e88c6d

SHA1
993b52b65b755aa59f4d1f4390e3e0cd6c2ffacf

SHA256
b72df5535e69fb7ea6dd6638059825c267e176baa3213a2f513d76d2455f1776

SHA512
0da3543e18958730fe92ebc318fdcc7f8744a37bbadaea096f3a327b4207efc8a5b67819284aa7bb9fd293122c4daed5acbcb27842a45cfab6b10dfc4a88ed59

Download Submit
\Users\Admin\AppData\Roaming\Remcos\remcos.exe
MD5
28b8acaf74bd16212a1d2fb732e88c6d

SHA1
993b52b65b755aa59f4d1f4390e3e0cd6c2ffacf

SHA256
b72df5535e69fb7ea6dd6638059825c267e176baa3213a2f513d76d2455f1776

SHA512
0da3543e18958730fe92ebc318fdcc7f8744a37bbadaea096f3a327b4207efc8a5b67819284aa7bb9fd293122c4daed5acbcb27842a45cfab6b10dfc4a88ed59

Download Submit
memory/792-2-0x0000000076861000-0x0000000076863000-memory.dmp

Filesize
8KB

Download
memory/848-12-0x0000000000000000-mapping.dmp

Download
memory/980-16-0x0000000000000000-mapping.dmp

Download
memory/1548-18-0x0000000000413FA4-mapping.dmp

Download
memory/1548-21-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1784-8-0x0000000000000000-mapping.dmp

Download
memory/1988-6-0x0000000000000000-mapping.dmp

Download
memory/1996-11-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1996-4-0x0000000000413FA4-mapping.dmp

Download
memory/2036-3-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads