remcos | 618cc1db8b0225b15c13df19b184970c0dfc180415c572ee7a12433a106e41e4

General

Target

618cc1db8b0225b15c13df19b184970c0dfc180415c572ee7a12433a106e41e4.exe
Size

218KB
MD5

25f290634a8092cc13820b1ade6ec33c
SHA1

3d4913172fedc50d9654effeab0fdcec9bb36014
SHA256

618cc1db8b0225b15c13df19b184970c0dfc180415c572ee7a12433a106e41e4
SHA512

22d9aaa2ab0780eab101a7c387e491e36f9672c59dc4b97a92488685dc3b62e585d004d8550f44a17034dc12e2dc6f08a2406991418452cb01e417f2b5e6da29

Score

10^/10

remcos remotehost rat

Malware Config

Extracted

Family

remcos

Version

2.0.5 Pro

Botnet

RemoteHost

C2

79.172.242.28:2404

Attributes

audio_folder
audio
audio_path
%AppData%
audio_record_time
5
connect_delay
0
connect_interval
5
copy_file
remcos.exe
copy_folder
remcos
delete_file
false
hide_file
false
hide_keylog_file
false
install_flag
false
install_path
%AppData%
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
keylog_path
%AppData%
mouse_option
false
mutex
Remcos-6PPTSU
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
remcos
take_screenshot_option
false
take_screenshot_time
5

Signatures

Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos
Executes dropped EXE 2 IoCs

Processes:

tmp.exe.exe

pid process

1812 tmp.exe
3064 .exe

pid	process
1812	tmp.exe
3064	.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

618cc1db8b0225b15c13df19b184970c0dfc180415c572ee7a12433a106e41e4.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3463845317-933582289-45817732-1000\Control Panel\International\Geo\Nation	618cc1db8b0225b15c13df19b184970c0dfc180415c572ee7a12433a106e41e4.exe

Drops desktop.ini file(s) 2 IoCs

Processes:

618cc1db8b0225b15c13df19b184970c0dfc180415c572ee7a12433a106e41e4.exe

description	ioc	process
File created	C:\Windows\assembly\Desktop.ini	618cc1db8b0225b15c13df19b184970c0dfc180415c572ee7a12433a106e41e4.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	618cc1db8b0225b15c13df19b184970c0dfc180415c572ee7a12433a106e41e4.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

tmp.exe618cc1db8b0225b15c13df19b184970c0dfc180415c572ee7a12433a106e41e4.exe.exe

description	pid	process	target process
PID 1812 set thread context of 2692	1812	tmp.exe	iexplore.exe
PID 3696 set thread context of 3064	3696	618cc1db8b0225b15c13df19b184970c0dfc180415c572ee7a12433a106e41e4.exe	.exe
PID 3064 set thread context of 1800	3064	.exe	iexplore.exe

Drops file in Windows directory 3 IoCs

Processes:

618cc1db8b0225b15c13df19b184970c0dfc180415c572ee7a12433a106e41e4.exe

description	ioc	process
File opened for modification	C:\Windows\assembly	618cc1db8b0225b15c13df19b184970c0dfc180415c572ee7a12433a106e41e4.exe
File created	C:\Windows\assembly\Desktop.ini	618cc1db8b0225b15c13df19b184970c0dfc180415c572ee7a12433a106e41e4.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	618cc1db8b0225b15c13df19b184970c0dfc180415c572ee7a12433a106e41e4.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
NTFS ADS 1 IoCs

Processes:

cmd.exe

description ioc process

File created C:\Users\Admin\AppData\Local\Temp\vf45\b9876.exe:Zone.Identifier cmd.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Local\Temp\vf45\b9876.exe:Zone.Identifier	cmd.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

618cc1db8b0225b15c13df19b184970c0dfc180415c572ee7a12433a106e41e4.exe

pid	process
3696	618cc1db8b0225b15c13df19b184970c0dfc180415c572ee7a12433a106e41e4.exe
3696	618cc1db8b0225b15c13df19b184970c0dfc180415c572ee7a12433a106e41e4.exe
3696	618cc1db8b0225b15c13df19b184970c0dfc180415c572ee7a12433a106e41e4.exe
3696	618cc1db8b0225b15c13df19b184970c0dfc180415c572ee7a12433a106e41e4.exe
3696	618cc1db8b0225b15c13df19b184970c0dfc180415c572ee7a12433a106e41e4.exe
3696	618cc1db8b0225b15c13df19b184970c0dfc180415c572ee7a12433a106e41e4.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

618cc1db8b0225b15c13df19b184970c0dfc180415c572ee7a12433a106e41e4.exe

description pid process

Token: SeDebugPrivilege 3696 618cc1db8b0225b15c13df19b184970c0dfc180415c572ee7a12433a106e41e4.exe

description	pid	process
Token: SeDebugPrivilege	3696	618cc1db8b0225b15c13df19b184970c0dfc180415c572ee7a12433a106e41e4.exe

Suspicious use of WriteProcessMemory 36 IoCs

Processes:

618cc1db8b0225b15c13df19b184970c0dfc180415c572ee7a12433a106e41e4.execmd.exetmp.exe.exe

description	pid	process	target process
PID 3696 wrote to memory of 2024	3696	618cc1db8b0225b15c13df19b184970c0dfc180415c572ee7a12433a106e41e4.exe	cmd.exe
PID 3696 wrote to memory of 2024	3696	618cc1db8b0225b15c13df19b184970c0dfc180415c572ee7a12433a106e41e4.exe	cmd.exe
PID 3696 wrote to memory of 2024	3696	618cc1db8b0225b15c13df19b184970c0dfc180415c572ee7a12433a106e41e4.exe	cmd.exe
PID 2024 wrote to memory of 1236	2024	cmd.exe	reg.exe
PID 2024 wrote to memory of 1236	2024	cmd.exe	reg.exe
PID 2024 wrote to memory of 1236	2024	cmd.exe	reg.exe
PID 3696 wrote to memory of 1812	3696	618cc1db8b0225b15c13df19b184970c0dfc180415c572ee7a12433a106e41e4.exe	tmp.exe
PID 3696 wrote to memory of 1812	3696	618cc1db8b0225b15c13df19b184970c0dfc180415c572ee7a12433a106e41e4.exe	tmp.exe
PID 3696 wrote to memory of 1812	3696	618cc1db8b0225b15c13df19b184970c0dfc180415c572ee7a12433a106e41e4.exe	tmp.exe
PID 1812 wrote to memory of 2692	1812	tmp.exe	iexplore.exe
PID 1812 wrote to memory of 2692	1812	tmp.exe	iexplore.exe
PID 1812 wrote to memory of 2692	1812	tmp.exe	iexplore.exe
PID 1812 wrote to memory of 2692	1812	tmp.exe	iexplore.exe
PID 1812 wrote to memory of 2692	1812	tmp.exe	iexplore.exe
PID 1812 wrote to memory of 2692	1812	tmp.exe	iexplore.exe
PID 1812 wrote to memory of 2692	1812	tmp.exe	iexplore.exe
PID 1812 wrote to memory of 2692	1812	tmp.exe	iexplore.exe
PID 1812 wrote to memory of 2692	1812	tmp.exe	iexplore.exe
PID 3696 wrote to memory of 3064	3696	618cc1db8b0225b15c13df19b184970c0dfc180415c572ee7a12433a106e41e4.exe	.exe
PID 3696 wrote to memory of 3064	3696	618cc1db8b0225b15c13df19b184970c0dfc180415c572ee7a12433a106e41e4.exe	.exe
PID 3696 wrote to memory of 3064	3696	618cc1db8b0225b15c13df19b184970c0dfc180415c572ee7a12433a106e41e4.exe	.exe
PID 3696 wrote to memory of 3064	3696	618cc1db8b0225b15c13df19b184970c0dfc180415c572ee7a12433a106e41e4.exe	.exe
PID 3696 wrote to memory of 3064	3696	618cc1db8b0225b15c13df19b184970c0dfc180415c572ee7a12433a106e41e4.exe	.exe
PID 3696 wrote to memory of 3064	3696	618cc1db8b0225b15c13df19b184970c0dfc180415c572ee7a12433a106e41e4.exe	.exe
PID 3696 wrote to memory of 3064	3696	618cc1db8b0225b15c13df19b184970c0dfc180415c572ee7a12433a106e41e4.exe	.exe
PID 3696 wrote to memory of 3064	3696	618cc1db8b0225b15c13df19b184970c0dfc180415c572ee7a12433a106e41e4.exe	.exe
PID 3696 wrote to memory of 3064	3696	618cc1db8b0225b15c13df19b184970c0dfc180415c572ee7a12433a106e41e4.exe	.exe
PID 3064 wrote to memory of 1800	3064	.exe	iexplore.exe
PID 3064 wrote to memory of 1800	3064	.exe	iexplore.exe
PID 3064 wrote to memory of 1800	3064	.exe	iexplore.exe
PID 3064 wrote to memory of 1800	3064	.exe	iexplore.exe
PID 3064 wrote to memory of 1800	3064	.exe	iexplore.exe
PID 3064 wrote to memory of 1800	3064	.exe	iexplore.exe
PID 3064 wrote to memory of 1800	3064	.exe	iexplore.exe
PID 3064 wrote to memory of 1800	3064	.exe	iexplore.exe
PID 3064 wrote to memory of 1800	3064	.exe	iexplore.exe

C:\Users\Admin\AppData\Local\Temp\618cc1db8b0225b15c13df19b184970c0dfc180415c572ee7a12433a106e41e4.exe
"C:\Users\Admin\AppData\Local\Temp\618cc1db8b0225b15c13df19b184970c0dfc180415c572ee7a12433a106e41e4.exe"
1⤵
- Checks computer location settings
- Drops desktop.ini file(s)
- Suspicious use of SetThreadContext
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3696

C:\Windows\SysWOW64\cmd.exe
"cmd.exe"
2⤵
- NTFS ADS
- Suspicious use of WriteProcessMemory
PID:2024

C:\Windows\SysWOW64\reg.exe
reg add "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Windows" /v Load /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\vf45\b9876.exe.lnk" /f
3⤵
PID:1236

C:\Users\Admin\AppData\Roaming\tmp.exe
"C:\Users\Admin\AppData\Roaming\tmp.exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1812

C:\Program Files (x86)\Internet Explorer\iexplore.exe
"C:\Program Files (x86)\Internet Explorer\iexplore.exe"
3⤵
PID:2692

C:\Users\Admin\AppData\Local\Temp\.exe
"C:\Users\Admin\AppData\Local\Temp\.exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3064

C:\Program Files (x86)\Internet Explorer\iexplore.exe
"C:\Program Files (x86)\Internet Explorer\iexplore.exe"
3⤵
PID:1800

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\.exe
Filesize
1.6MB

MD5
1c9ff7df71493896054a91bee0322ebf

SHA1
38f1c85965d58b910d8e8381b6b1099d5dfcbfe4

SHA256
e8b5da3394bbdd7868122ffd88d9d06afe31bd69d656857910d2f820c32d0efa

SHA512
aa0def62b663743e6c3c022182b35cff33cb9abf08453d5098f3c5d32b2a8b0cd1cc5de64b93e39680c1d1396fef1fd50b642ca3ea4ba1f6d1078321d96916ab

Download Submit
C:\Users\Admin\AppData\Local\Temp\.exe
Filesize
1.6MB

MD5
1c9ff7df71493896054a91bee0322ebf

SHA1
38f1c85965d58b910d8e8381b6b1099d5dfcbfe4

SHA256
e8b5da3394bbdd7868122ffd88d9d06afe31bd69d656857910d2f820c32d0efa

SHA512
aa0def62b663743e6c3c022182b35cff33cb9abf08453d5098f3c5d32b2a8b0cd1cc5de64b93e39680c1d1396fef1fd50b642ca3ea4ba1f6d1078321d96916ab

Download Submit
C:\Users\Admin\AppData\Local\Temp\vf45\b9876.exe
Filesize
218KB

MD5
25f290634a8092cc13820b1ade6ec33c

SHA1
3d4913172fedc50d9654effeab0fdcec9bb36014

SHA256
618cc1db8b0225b15c13df19b184970c0dfc180415c572ee7a12433a106e41e4

SHA512
22d9aaa2ab0780eab101a7c387e491e36f9672c59dc4b97a92488685dc3b62e585d004d8550f44a17034dc12e2dc6f08a2406991418452cb01e417f2b5e6da29

Download Submit
C:\Users\Admin\AppData\Roaming\tmp.exe
Filesize
108KB

MD5
07dafacf45c8e2fe217985a20c1ee89d

SHA1
f62ec5fdd8a397465399b8d20a9196ebbbfe5a1c

SHA256
71f4ff98b5c43912e39c9b68c0ae1ed894903e94756f41cf5631445499356527

SHA512
08c3a614f2e44bde9610519e0f751f131d80d2dd1c4939921f1b4455d2e7095d96d0c21f9c854dcdc4abf0d1e20c2de4a9e2cb602367f7efa5f4c524909c4074

Download Submit
C:\Users\Admin\AppData\Roaming\tmp.exe
Filesize
108KB

MD5
07dafacf45c8e2fe217985a20c1ee89d

SHA1
f62ec5fdd8a397465399b8d20a9196ebbbfe5a1c

SHA256
71f4ff98b5c43912e39c9b68c0ae1ed894903e94756f41cf5631445499356527

SHA512
08c3a614f2e44bde9610519e0f751f131d80d2dd1c4939921f1b4455d2e7095d96d0c21f9c854dcdc4abf0d1e20c2de4a9e2cb602367f7efa5f4c524909c4074

Download Submit
memory/1236-136-0x0000000000000000-mapping.dmp

Download
memory/1812-138-0x0000000000000000-mapping.dmp

Download
memory/2024-135-0x0000000000000000-mapping.dmp

Download
memory/3064-141-0x0000000000000000-mapping.dmp

Download
memory/3064-142-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/3064-146-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/3064-148-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/3696-133-0x0000000074780000-0x0000000074D31000-memory.dmp

Filesize
5.7MB

Download
memory/3696-134-0x0000000074780000-0x0000000074D31000-memory.dmp

Filesize
5.7MB

Download
memory/3696-149-0x0000000074780000-0x0000000074D31000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads