remcos | 6a9beed2218eb04e929a87b8e1e1fb1f5d3197136c96b434e82f9dd62e71233c

General

Target

Quotation.exe
Size

163KB
MD5

5d3efb4803c5ec263edc87d268c6035b
SHA1

d16a17af079d759e90f6fbb955455e00dd5d6df6
SHA256

6a9beed2218eb04e929a87b8e1e1fb1f5d3197136c96b434e82f9dd62e71233c
SHA512

1ed1da2650690e98aa10c498f8bba6562169a54bcb28a7cad53818c1f077de777de7d4888a4da8ef7a4c5a0b31d11b52357f01749ec51f391f46e17fc2045913

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

1108 remcos.exe
1092 remcos.exe
Loads dropped DLL 2 IoCs

Processes:

cmd.exe

pid process

1508 cmd.exe
1508 cmd.exe

pid	process
1108	remcos.exe
1092	remcos.exe

pid	process
1508	cmd.exe
1508	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 1676 set thread context of 2028	1676	Quotation.exe	Quotation.exe
PID 1108 set thread context of 1092	1108	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

2032 schtasks.exe
Suspicious behavior: MapViewOfSection 2 IoCs

Processes:

Quotation.exeremcos.exe

pid process

1676 Quotation.exe
1108 remcos.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

remcos.exe

pid process

1092 remcos.exe

pid	process
2032	schtasks.exe

pid	process
1676	Quotation.exe
1108	remcos.exe

pid	process
1092	remcos.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

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

description	pid	process	target process
PID 1676 wrote to memory of 1212	1676	Quotation.exe	cmd.exe
PID 1676 wrote to memory of 1212	1676	Quotation.exe	cmd.exe
PID 1676 wrote to memory of 1212	1676	Quotation.exe	cmd.exe
PID 1676 wrote to memory of 1212	1676	Quotation.exe	cmd.exe
PID 1676 wrote to memory of 2028	1676	Quotation.exe	Quotation.exe
PID 1676 wrote to memory of 2028	1676	Quotation.exe	Quotation.exe
PID 1676 wrote to memory of 2028	1676	Quotation.exe	Quotation.exe
PID 1676 wrote to memory of 2028	1676	Quotation.exe	Quotation.exe
PID 1676 wrote to memory of 2028	1676	Quotation.exe	Quotation.exe
PID 1212 wrote to memory of 2032	1212	cmd.exe	schtasks.exe
PID 1212 wrote to memory of 2032	1212	cmd.exe	schtasks.exe
PID 1212 wrote to memory of 2032	1212	cmd.exe	schtasks.exe
PID 1212 wrote to memory of 2032	1212	cmd.exe	schtasks.exe
PID 2028 wrote to memory of 788	2028	Quotation.exe	WScript.exe
PID 2028 wrote to memory of 788	2028	Quotation.exe	WScript.exe
PID 2028 wrote to memory of 788	2028	Quotation.exe	WScript.exe
PID 2028 wrote to memory of 788	2028	Quotation.exe	WScript.exe
PID 788 wrote to memory of 1508	788	WScript.exe	cmd.exe
PID 788 wrote to memory of 1508	788	WScript.exe	cmd.exe
PID 788 wrote to memory of 1508	788	WScript.exe	cmd.exe
PID 788 wrote to memory of 1508	788	WScript.exe	cmd.exe
PID 1508 wrote to memory of 1108	1508	cmd.exe	remcos.exe
PID 1508 wrote to memory of 1108	1508	cmd.exe	remcos.exe
PID 1508 wrote to memory of 1108	1508	cmd.exe	remcos.exe
PID 1508 wrote to memory of 1108	1508	cmd.exe	remcos.exe
PID 1108 wrote to memory of 1092	1108	remcos.exe	remcos.exe
PID 1108 wrote to memory of 1092	1108	remcos.exe	remcos.exe
PID 1108 wrote to memory of 1092	1108	remcos.exe	remcos.exe
PID 1108 wrote to memory of 1092	1108	remcos.exe	remcos.exe
PID 1108 wrote to memory of 1092	1108	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:1676

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /Create /TN name /XML "C:\Users\Admin\AppData\Local\Temp\1f3091a968c34196a6722074c331f0f3.xml"
2⤵
- Suspicious use of WriteProcessMemory
PID:1212

C:\Windows\SysWOW64\schtasks.exe
schtasks /Create /TN name /XML "C:\Users\Admin\AppData\Local\Temp\1f3091a968c34196a6722074c331f0f3.xml"
3⤵
- Creates scheduled task(s)
PID:2032

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:2028

C:\Windows\SysWOW64\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\install.vbs"
3⤵
- Suspicious use of WriteProcessMemory
PID:788

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:1508

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:1108

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:1092

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\1f3091a968c34196a6722074c331f0f3.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
5d3efb4803c5ec263edc87d268c6035b

SHA1
d16a17af079d759e90f6fbb955455e00dd5d6df6

SHA256
6a9beed2218eb04e929a87b8e1e1fb1f5d3197136c96b434e82f9dd62e71233c

SHA512
1ed1da2650690e98aa10c498f8bba6562169a54bcb28a7cad53818c1f077de777de7d4888a4da8ef7a4c5a0b31d11b52357f01749ec51f391f46e17fc2045913

Download Submit
C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe
MD5
5d3efb4803c5ec263edc87d268c6035b

SHA1
d16a17af079d759e90f6fbb955455e00dd5d6df6

SHA256
6a9beed2218eb04e929a87b8e1e1fb1f5d3197136c96b434e82f9dd62e71233c

SHA512
1ed1da2650690e98aa10c498f8bba6562169a54bcb28a7cad53818c1f077de777de7d4888a4da8ef7a4c5a0b31d11b52357f01749ec51f391f46e17fc2045913

Download Submit
C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe
MD5
5d3efb4803c5ec263edc87d268c6035b

SHA1
d16a17af079d759e90f6fbb955455e00dd5d6df6

SHA256
6a9beed2218eb04e929a87b8e1e1fb1f5d3197136c96b434e82f9dd62e71233c

SHA512
1ed1da2650690e98aa10c498f8bba6562169a54bcb28a7cad53818c1f077de777de7d4888a4da8ef7a4c5a0b31d11b52357f01749ec51f391f46e17fc2045913

Download Submit
\Users\Admin\AppData\Roaming\Remcos\remcos.exe
MD5
5d3efb4803c5ec263edc87d268c6035b

SHA1
d16a17af079d759e90f6fbb955455e00dd5d6df6

SHA256
6a9beed2218eb04e929a87b8e1e1fb1f5d3197136c96b434e82f9dd62e71233c

SHA512
1ed1da2650690e98aa10c498f8bba6562169a54bcb28a7cad53818c1f077de777de7d4888a4da8ef7a4c5a0b31d11b52357f01749ec51f391f46e17fc2045913

Download Submit
\Users\Admin\AppData\Roaming\Remcos\remcos.exe
MD5
5d3efb4803c5ec263edc87d268c6035b

SHA1
d16a17af079d759e90f6fbb955455e00dd5d6df6

SHA256
6a9beed2218eb04e929a87b8e1e1fb1f5d3197136c96b434e82f9dd62e71233c

SHA512
1ed1da2650690e98aa10c498f8bba6562169a54bcb28a7cad53818c1f077de777de7d4888a4da8ef7a4c5a0b31d11b52357f01749ec51f391f46e17fc2045913

Download Submit
memory/788-11-0x0000000002760000-0x0000000002764000-memory.dmp

Filesize
16KB

Download
memory/788-8-0x0000000000000000-mapping.dmp

Download
memory/1092-18-0x0000000000413FA4-mapping.dmp

Download
memory/1108-20-0x0000000000460000-0x0000000000481000-memory.dmp

Filesize
132KB

Download
memory/1108-15-0x0000000000000000-mapping.dmp

Download
memory/1212-2-0x0000000000000000-mapping.dmp

Download
memory/1508-10-0x0000000000000000-mapping.dmp

Download
memory/2028-6-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2028-4-0x0000000000413FA4-mapping.dmp

Download
memory/2028-3-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2032-5-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads