remcos | 605834c1fd1e1ad6e039fa17f7de298663ab902e84a70947a15ef18d088879e8

General

Target

Quotation.exe
Size

301KB
MD5

86ee20d76d6fcd5411f6ac7f6087e636
SHA1

bdccba4e08fdcb0eb4881111087b04871ac9a017
SHA256

605834c1fd1e1ad6e039fa17f7de298663ab902e84a70947a15ef18d088879e8
SHA512

811795cd24c69795120dc26c4c876a51453eb11820f9482819a70698d6b14ddece068da18bad307e28975273d20d9a680b31df07c04362e8d33d7de733b26516

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 4 IoCs

Processes:

remcos.exeremcos.exeremcos.exeremcos.exe

pid process

4080 remcos.exe
1244 remcos.exe
1220 remcos.exe
1020 remcos.exe

pid	process
4080	remcos.exe
1244	remcos.exe
1220	remcos.exe
1020	remcos.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

remcos.exeQuotation.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Windows\CurrentVersion\Run\Remcos = "\"C:\\Users\\Admin\\AppData\\Roaming\\Remcos\\remcos.exe\""	remcos.exe
Key created	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Windows\CurrentVersion\Run\	Quotation.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Windows\CurrentVersion\Run\Remcos = "\"C:\\Users\\Admin\\AppData\\Roaming\\Remcos\\remcos.exe\""	Quotation.exe
Key created	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Windows\CurrentVersion\Run\	remcos.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

Quotation.exeremcos.exe

description	pid	process	target process
PID 3996 set thread context of 3784	3996	Quotation.exe	Quotation.exe
PID 1220 set thread context of 1020	1220	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

3256 schtasks.exe
Modifies registry class 1 IoCs

Processes:

Quotation.exe

description ioc process

Key created \REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000_Classes\Local Settings Quotation.exe
Suspicious behavior: MapViewOfSection 3 IoCs

Processes:

Quotation.exeremcos.exeremcos.exe

pid process

3996 Quotation.exe
4080 remcos.exe
1220 remcos.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

remcos.exe

pid process

1020 remcos.exe

pid	process
3256	schtasks.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000_Classes\Local Settings	Quotation.exe

pid	process
3996	Quotation.exe
4080	remcos.exe
1220	remcos.exe

pid	process
1020	remcos.exe

Suspicious use of WriteProcessMemory 29 IoCs

Processes:

Quotation.execmd.exeQuotation.exeWScript.execmd.exeremcos.exeremcos.exe

description	pid	process	target process
PID 3996 wrote to memory of 2132	3996	Quotation.exe	cmd.exe
PID 3996 wrote to memory of 2132	3996	Quotation.exe	cmd.exe
PID 3996 wrote to memory of 2132	3996	Quotation.exe	cmd.exe
PID 3996 wrote to memory of 3784	3996	Quotation.exe	Quotation.exe
PID 3996 wrote to memory of 3784	3996	Quotation.exe	Quotation.exe
PID 3996 wrote to memory of 3784	3996	Quotation.exe	Quotation.exe
PID 3996 wrote to memory of 3784	3996	Quotation.exe	Quotation.exe
PID 2132 wrote to memory of 3256	2132	cmd.exe	schtasks.exe
PID 2132 wrote to memory of 3256	2132	cmd.exe	schtasks.exe
PID 2132 wrote to memory of 3256	2132	cmd.exe	schtasks.exe
PID 3784 wrote to memory of 204	3784	Quotation.exe	WScript.exe
PID 3784 wrote to memory of 204	3784	Quotation.exe	WScript.exe
PID 3784 wrote to memory of 204	3784	Quotation.exe	WScript.exe
PID 204 wrote to memory of 3752	204	WScript.exe	cmd.exe
PID 204 wrote to memory of 3752	204	WScript.exe	cmd.exe
PID 204 wrote to memory of 3752	204	WScript.exe	cmd.exe
PID 3752 wrote to memory of 4080	3752	cmd.exe	remcos.exe
PID 3752 wrote to memory of 4080	3752	cmd.exe	remcos.exe
PID 3752 wrote to memory of 4080	3752	cmd.exe	remcos.exe
PID 4080 wrote to memory of 1244	4080	remcos.exe	remcos.exe
PID 4080 wrote to memory of 1244	4080	remcos.exe	remcos.exe
PID 4080 wrote to memory of 1244	4080	remcos.exe	remcos.exe
PID 4080 wrote to memory of 1220	4080	remcos.exe	remcos.exe
PID 4080 wrote to memory of 1220	4080	remcos.exe	remcos.exe
PID 4080 wrote to memory of 1220	4080	remcos.exe	remcos.exe
PID 1220 wrote to memory of 1020	1220	remcos.exe	remcos.exe
PID 1220 wrote to memory of 1020	1220	remcos.exe	remcos.exe
PID 1220 wrote to memory of 1020	1220	remcos.exe	remcos.exe
PID 1220 wrote to memory of 1020	1220	remcos.exe	remcos.exe

C:\Users\Admin\AppData\Local\Temp\Quotation.exe
"C:\Users\Admin\AppData\Local\Temp\Quotation.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:3996

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /Create /TN name /XML "C:\Users\Admin\AppData\Local\Temp\46b0b47c981843f9ad736934b2e3a8ee.xml"
2⤵
- Suspicious use of WriteProcessMemory
PID:2132

C:\Windows\SysWOW64\schtasks.exe
schtasks /Create /TN name /XML "C:\Users\Admin\AppData\Local\Temp\46b0b47c981843f9ad736934b2e3a8ee.xml"
3⤵
- Creates scheduled task(s)
PID:3256

C:\Users\Admin\AppData\Local\Temp\Quotation.exe
"C:\Users\Admin\AppData\Local\Temp\Quotation.exe"
2⤵
- Adds Run key to start application
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:3784

C:\Windows\SysWOW64\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\install.vbs"
3⤵
- Suspicious use of WriteProcessMemory
PID:204

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c "C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe"
4⤵
- Suspicious use of WriteProcessMemory
PID:3752

C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe
C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe
5⤵
- Executes dropped EXE
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4080

C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe
C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe
6⤵
- Executes dropped EXE
PID:1244

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:1220

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:1020

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\46b0b47c981843f9ad736934b2e3a8ee.xml
MD5
a36564afc14b3eb0849c01a3afdb9944

SHA1
4dcee9fae3fde4e46b08529bc0ba067150686f07

SHA256
9d4342f763c5d62a06f69aa6fdcb1caa376ff2f2c0972f36b487f73b4d221996

SHA512
782082aa36ae056734e90fc079c813dfef59420571a1b70cde4cf15eb6c870f85b2bfe0748ef4db9df3d010c08671bff744d78178ba75bf2ba02b665f044ae89

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
86ee20d76d6fcd5411f6ac7f6087e636

SHA1
bdccba4e08fdcb0eb4881111087b04871ac9a017

SHA256
605834c1fd1e1ad6e039fa17f7de298663ab902e84a70947a15ef18d088879e8

SHA512
811795cd24c69795120dc26c4c876a51453eb11820f9482819a70698d6b14ddece068da18bad307e28975273d20d9a680b31df07c04362e8d33d7de733b26516

Download Submit
C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe
MD5
86ee20d76d6fcd5411f6ac7f6087e636

SHA1
bdccba4e08fdcb0eb4881111087b04871ac9a017

SHA256
605834c1fd1e1ad6e039fa17f7de298663ab902e84a70947a15ef18d088879e8

SHA512
811795cd24c69795120dc26c4c876a51453eb11820f9482819a70698d6b14ddece068da18bad307e28975273d20d9a680b31df07c04362e8d33d7de733b26516

Download Submit
C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe
MD5
86ee20d76d6fcd5411f6ac7f6087e636

SHA1
bdccba4e08fdcb0eb4881111087b04871ac9a017

SHA256
605834c1fd1e1ad6e039fa17f7de298663ab902e84a70947a15ef18d088879e8

SHA512
811795cd24c69795120dc26c4c876a51453eb11820f9482819a70698d6b14ddece068da18bad307e28975273d20d9a680b31df07c04362e8d33d7de733b26516

Download Submit
C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe
MD5
86ee20d76d6fcd5411f6ac7f6087e636

SHA1
bdccba4e08fdcb0eb4881111087b04871ac9a017

SHA256
605834c1fd1e1ad6e039fa17f7de298663ab902e84a70947a15ef18d088879e8

SHA512
811795cd24c69795120dc26c4c876a51453eb11820f9482819a70698d6b14ddece068da18bad307e28975273d20d9a680b31df07c04362e8d33d7de733b26516

Download Submit
C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe
MD5
86ee20d76d6fcd5411f6ac7f6087e636

SHA1
bdccba4e08fdcb0eb4881111087b04871ac9a017

SHA256
605834c1fd1e1ad6e039fa17f7de298663ab902e84a70947a15ef18d088879e8

SHA512
811795cd24c69795120dc26c4c876a51453eb11820f9482819a70698d6b14ddece068da18bad307e28975273d20d9a680b31df07c04362e8d33d7de733b26516

Download Submit
memory/204-6-0x0000000000000000-mapping.dmp

Download
memory/1020-16-0x0000000000413FA4-mapping.dmp

Download
memory/1020-18-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1220-14-0x0000000000000000-mapping.dmp

Download
memory/2132-2-0x0000000000000000-mapping.dmp

Download
memory/3256-4-0x0000000000000000-mapping.dmp

Download
memory/3752-9-0x0000000000000000-mapping.dmp

Download
memory/3784-8-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3784-3-0x0000000000413FA4-mapping.dmp

Download
memory/4080-10-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads