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

3840 remcos.exe
3284 remcos.exe

pid	process
3840	remcos.exe
3284	remcos.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-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Windows\CurrentVersion\Run\	Qotation.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Windows\CurrentVersion\Run\Remcos = "\"C:\\Users\\Admin\\AppData\\Roaming\\Remcos\\remcos.exe\""	Qotation.exe
Key created	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Windows\CurrentVersion\Run\	remcos.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\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 2540 set thread context of 2648	2540	Qotation.exe	Qotation.exe
PID 3840 set thread context of 3284	3840	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

3612 schtasks.exe
Modifies registry class 1 IoCs

Processes:

Qotation.exe

description ioc process

Key created \REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000_Classes\Local Settings Qotation.exe
Suspicious behavior: MapViewOfSection 3 IoCs

Processes:

Qotation.exeQotation.exeremcos.exe

pid process

988 Qotation.exe
2540 Qotation.exe
3840 remcos.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

remcos.exe

pid process

3284 remcos.exe

pid	process
3612	schtasks.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000_Classes\Local Settings	Qotation.exe

pid	process
988	Qotation.exe
2540	Qotation.exe
3840	remcos.exe

pid	process
3284	remcos.exe

Suspicious use of WriteProcessMemory 29 IoCs

Processes:

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

description	pid	process	target process
PID 988 wrote to memory of 2252	988	Qotation.exe	cmd.exe
PID 988 wrote to memory of 2252	988	Qotation.exe	cmd.exe
PID 988 wrote to memory of 2252	988	Qotation.exe	cmd.exe
PID 988 wrote to memory of 2388	988	Qotation.exe	Qotation.exe
PID 988 wrote to memory of 2388	988	Qotation.exe	Qotation.exe
PID 988 wrote to memory of 2388	988	Qotation.exe	Qotation.exe
PID 988 wrote to memory of 2540	988	Qotation.exe	Qotation.exe
PID 988 wrote to memory of 2540	988	Qotation.exe	Qotation.exe
PID 988 wrote to memory of 2540	988	Qotation.exe	Qotation.exe
PID 2540 wrote to memory of 2648	2540	Qotation.exe	Qotation.exe
PID 2540 wrote to memory of 2648	2540	Qotation.exe	Qotation.exe
PID 2540 wrote to memory of 2648	2540	Qotation.exe	Qotation.exe
PID 2540 wrote to memory of 2648	2540	Qotation.exe	Qotation.exe
PID 2252 wrote to memory of 3612	2252	cmd.exe	schtasks.exe
PID 2252 wrote to memory of 3612	2252	cmd.exe	schtasks.exe
PID 2252 wrote to memory of 3612	2252	cmd.exe	schtasks.exe
PID 2648 wrote to memory of 568	2648	Qotation.exe	WScript.exe
PID 2648 wrote to memory of 568	2648	Qotation.exe	WScript.exe
PID 2648 wrote to memory of 568	2648	Qotation.exe	WScript.exe
PID 568 wrote to memory of 2272	568	WScript.exe	cmd.exe
PID 568 wrote to memory of 2272	568	WScript.exe	cmd.exe
PID 568 wrote to memory of 2272	568	WScript.exe	cmd.exe
PID 2272 wrote to memory of 3840	2272	cmd.exe	remcos.exe
PID 2272 wrote to memory of 3840	2272	cmd.exe	remcos.exe
PID 2272 wrote to memory of 3840	2272	cmd.exe	remcos.exe
PID 3840 wrote to memory of 3284	3840	remcos.exe	remcos.exe
PID 3840 wrote to memory of 3284	3840	remcos.exe	remcos.exe
PID 3840 wrote to memory of 3284	3840	remcos.exe	remcos.exe
PID 3840 wrote to memory of 3284	3840	remcos.exe	remcos.exe

C:\Users\Admin\AppData\Local\Temp\Qotation.exe
"C:\Users\Admin\AppData\Local\Temp\Qotation.exe"
1⤵
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:988

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:2252

C:\Windows\SysWOW64\schtasks.exe
schtasks /Create /TN name /XML "C:\Users\Admin\AppData\Local\Temp\955056a4c04c43a3ad2c1d5c7e436ce5.xml"
3⤵
- Creates scheduled task(s)
PID:3612

C:\Users\Admin\AppData\Local\Temp\Qotation.exe
"C:\Users\Admin\AppData\Local\Temp\Qotation.exe"
2⤵
PID:2388

C:\Users\Admin\AppData\Local\Temp\Qotation.exe
"C:\Users\Admin\AppData\Local\Temp\Qotation.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2540

C:\Users\Admin\AppData\Local\Temp\Qotation.exe
"C:\Users\Admin\AppData\Local\Temp\Qotation.exe"
3⤵
- Adds Run key to start application
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2648

C:\Windows\SysWOW64\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\install.vbs"
4⤵
- Suspicious use of WriteProcessMemory
PID:568

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c "C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe"
5⤵
- Suspicious use of WriteProcessMemory
PID:2272

C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe
C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe
6⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:3840

C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe
C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe
7⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetWindowsHookEx
PID:3284

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
aa2f6636e997aaa0b01fbc78b1dabe52

SHA1
fd462100fc91975dcbea8e361cf1eb8a70f6ad54

SHA256
d710b6eda22285684579d8b547e5be2f48883c4bf8db39993b00df30f9dc8723

SHA512
6540a3bbdbd3ab51679d5b32380e6c288bf6eba2777d067d40bfe65642ccafecd18028b102dfa46ac189d84282da2b6cb202a4f307587c5639f86834788f5104

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
memory/568-7-0x0000000000000000-mapping.dmp

Download
memory/2252-2-0x0000000000000000-mapping.dmp

Download
memory/2272-10-0x0000000000000000-mapping.dmp

Download
memory/2540-3-0x0000000000000000-mapping.dmp

Download
memory/2648-9-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2648-4-0x0000000000413FA4-mapping.dmp

Download
memory/3284-16-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3284-14-0x0000000000413FA4-mapping.dmp

Download
memory/3612-5-0x0000000000000000-mapping.dmp

Download
memory/3840-11-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads