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 2 IoCs

Processes:

remcos.exeremcos.exe

pid process

1704 remcos.exe
268 remcos.exe
Loads dropped DLL 2 IoCs

Processes:

cmd.exe

pid process

1300 cmd.exe
1300 cmd.exe

pid	process
1704	remcos.exe
268	remcos.exe

pid	process
1300	cmd.exe
1300	cmd.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Quotation.exeremcos.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Windows\CurrentVersion\Run\	Quotation.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Windows\CurrentVersion\Run\Remcos = "\"C:\\Users\\Admin\\AppData\\Roaming\\Remcos\\remcos.exe\""	Quotation.exe
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Windows\CurrentVersion\Run\	remcos.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Windows\CurrentVersion\Run\Remcos = "\"C:\\Users\\Admin\\AppData\\Roaming\\Remcos\\remcos.exe\""	remcos.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

Quotation.exeremcos.exe

description	pid	process	target process
PID 1832 set thread context of 1364	1832	Quotation.exe	Quotation.exe
PID 1704 set thread context of 268	1704	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

1996 schtasks.exe
Suspicious behavior: MapViewOfSection 2 IoCs

Processes:

Quotation.exeremcos.exe

pid process

1832 Quotation.exe
1704 remcos.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

remcos.exe

pid process

268 remcos.exe

pid	process
1996	schtasks.exe

pid	process
1832	Quotation.exe
1704	remcos.exe

pid	process
268	remcos.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

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

description	pid	process	target process
PID 1832 wrote to memory of 1188	1832	Quotation.exe	cmd.exe
PID 1832 wrote to memory of 1188	1832	Quotation.exe	cmd.exe
PID 1832 wrote to memory of 1188	1832	Quotation.exe	cmd.exe
PID 1832 wrote to memory of 1188	1832	Quotation.exe	cmd.exe
PID 1832 wrote to memory of 1364	1832	Quotation.exe	Quotation.exe
PID 1832 wrote to memory of 1364	1832	Quotation.exe	Quotation.exe
PID 1832 wrote to memory of 1364	1832	Quotation.exe	Quotation.exe
PID 1832 wrote to memory of 1364	1832	Quotation.exe	Quotation.exe
PID 1832 wrote to memory of 1364	1832	Quotation.exe	Quotation.exe
PID 1188 wrote to memory of 1996	1188	cmd.exe	schtasks.exe
PID 1188 wrote to memory of 1996	1188	cmd.exe	schtasks.exe
PID 1188 wrote to memory of 1996	1188	cmd.exe	schtasks.exe
PID 1188 wrote to memory of 1996	1188	cmd.exe	schtasks.exe
PID 1364 wrote to memory of 1264	1364	Quotation.exe	WScript.exe
PID 1364 wrote to memory of 1264	1364	Quotation.exe	WScript.exe
PID 1364 wrote to memory of 1264	1364	Quotation.exe	WScript.exe
PID 1364 wrote to memory of 1264	1364	Quotation.exe	WScript.exe
PID 1264 wrote to memory of 1300	1264	WScript.exe	cmd.exe
PID 1264 wrote to memory of 1300	1264	WScript.exe	cmd.exe
PID 1264 wrote to memory of 1300	1264	WScript.exe	cmd.exe
PID 1264 wrote to memory of 1300	1264	WScript.exe	cmd.exe
PID 1300 wrote to memory of 1704	1300	cmd.exe	remcos.exe
PID 1300 wrote to memory of 1704	1300	cmd.exe	remcos.exe
PID 1300 wrote to memory of 1704	1300	cmd.exe	remcos.exe
PID 1300 wrote to memory of 1704	1300	cmd.exe	remcos.exe
PID 1704 wrote to memory of 268	1704	remcos.exe	remcos.exe
PID 1704 wrote to memory of 268	1704	remcos.exe	remcos.exe
PID 1704 wrote to memory of 268	1704	remcos.exe	remcos.exe
PID 1704 wrote to memory of 268	1704	remcos.exe	remcos.exe
PID 1704 wrote to memory of 268	1704	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:1832

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:1188

C:\Windows\SysWOW64\schtasks.exe
schtasks /Create /TN name /XML "C:\Users\Admin\AppData\Local\Temp\46b0b47c981843f9ad736934b2e3a8ee.xml"
3⤵
- Creates scheduled task(s)
PID:1996

C:\Users\Admin\AppData\Local\Temp\Quotation.exe
"C:\Users\Admin\AppData\Local\Temp\Quotation.exe"
2⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1364

C:\Windows\SysWOW64\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\install.vbs"
3⤵
- Suspicious use of WriteProcessMemory
PID:1264

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:1300

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:1704

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:268

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\46b0b47c981843f9ad736934b2e3a8ee.xml
MD5
9313352a59e3b368ab4eb8173567c406

SHA1
fc776c28e3ae9bd5e68f25c2a4f6248126731370

SHA256
469d4994320f37196faca4de8ada85161a43dd42c9405b283bea5e4ea84c9a8d

SHA512
000f6edf387b4ea0f244003fad3f66be5eb1920012838ba3a19c3f2dcde973fce8450c8e556c22cc20f7a3a0980d735fb169ecfafd440993c9fe5b8875fc7462

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
\Users\Admin\AppData\Roaming\Remcos\remcos.exe
MD5
86ee20d76d6fcd5411f6ac7f6087e636

SHA1
bdccba4e08fdcb0eb4881111087b04871ac9a017

SHA256
605834c1fd1e1ad6e039fa17f7de298663ab902e84a70947a15ef18d088879e8

SHA512
811795cd24c69795120dc26c4c876a51453eb11820f9482819a70698d6b14ddece068da18bad307e28975273d20d9a680b31df07c04362e8d33d7de733b26516

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

SHA1
bdccba4e08fdcb0eb4881111087b04871ac9a017

SHA256
605834c1fd1e1ad6e039fa17f7de298663ab902e84a70947a15ef18d088879e8

SHA512
811795cd24c69795120dc26c4c876a51453eb11820f9482819a70698d6b14ddece068da18bad307e28975273d20d9a680b31df07c04362e8d33d7de733b26516

Download Submit
memory/268-22-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/268-19-0x0000000000413FA4-mapping.dmp

Download
memory/1188-3-0x0000000000000000-mapping.dmp

Download
memory/1264-8-0x0000000000000000-mapping.dmp

Download
memory/1264-13-0x00000000026E0000-0x00000000026E4000-memory.dmp

Filesize
16KB

Download
memory/1300-12-0x0000000000000000-mapping.dmp

Download
memory/1364-10-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1364-4-0x0000000000413FA4-mapping.dmp

Download
memory/1704-17-0x0000000000000000-mapping.dmp

Download
memory/1832-2-0x0000000076371000-0x0000000076373000-memory.dmp

Filesize
8KB

Download
memory/1996-6-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads