remcos | 36dd1628bc3935506e2aec81868813136f6b1c0ee52abae8cf9a7b5389f4f33c

General

Target

SOA FROM UNIBEST--MAY-JUN-JUL- 2022.exe
Size

219KB
MD5

70b97952feb29f9a3fa913f78dd56416
SHA1

323c84431a669ad0bf6038bd22b7413198f7f434
SHA256

36dd1628bc3935506e2aec81868813136f6b1c0ee52abae8cf9a7b5389f4f33c
SHA512

d219b54f08d81c3e58607c2d60c69fc061c43bb5b5431df436006700c214deaf542ab0cf078fa8a5e1b37133c4be0444926e0df61009f5cc1f19551694a382b5

Score

10^/10

remcos remotehost persistence rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

172.94.88.13:5888

Attributes

audio_folder
MicRecords
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
remcos.exe
copy_folder
Remcos
delete_file
false
hide_file
false
hide_keylog_file
false
install_flag
false
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
mouse_option
false
mutex
Rmc-3VUS2W
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

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:

SOA FROM UNIBEST--MAY-JUN-JUL- 2022.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2660308776-3705150086-26593515-1000\Control Panel\International\Geo\Nation	SOA FROM UNIBEST--MAY-JUN-JUL- 2022.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

SOA FROM UNIBEST--MAY-JUN-JUL- 2022.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2660308776-3705150086-26593515-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Gpxkbcvai = "\"C:\\Users\\Admin\\AppData\\Roaming\\Uymodgmv\\Gpxkbcvai.exe\""	SOA FROM UNIBEST--MAY-JUN-JUL- 2022.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

SOA FROM UNIBEST--MAY-JUN-JUL- 2022.exe

description pid process target process

PID 4284 set thread context of 4352 4284 SOA FROM UNIBEST--MAY-JUN-JUL- 2022.exe InstallUtil.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

powershell.exeSOA FROM UNIBEST--MAY-JUN-JUL- 2022.exe

pid process

668 powershell.exe
668 powershell.exe
4284 SOA FROM UNIBEST--MAY-JUN-JUL- 2022.exe
4284 SOA FROM UNIBEST--MAY-JUN-JUL- 2022.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

SOA FROM UNIBEST--MAY-JUN-JUL- 2022.exepowershell.exe

description pid process

Token: SeDebugPrivilege 4284 SOA FROM UNIBEST--MAY-JUN-JUL- 2022.exe
Token: SeDebugPrivilege 668 powershell.exe

description	pid	process	target process
PID 4284 set thread context of 4352	4284	SOA FROM UNIBEST--MAY-JUN-JUL- 2022.exe	InstallUtil.exe

pid	process
668	powershell.exe
668	powershell.exe
4284	SOA FROM UNIBEST--MAY-JUN-JUL- 2022.exe
4284	SOA FROM UNIBEST--MAY-JUN-JUL- 2022.exe

description	pid	process
Token: SeDebugPrivilege	4284	SOA FROM UNIBEST--MAY-JUN-JUL- 2022.exe
Token: SeDebugPrivilege	668	powershell.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

SOA FROM UNIBEST--MAY-JUN-JUL- 2022.exe

description	pid	process	target process
PID 4284 wrote to memory of 668	4284	SOA FROM UNIBEST--MAY-JUN-JUL- 2022.exe	powershell.exe
PID 4284 wrote to memory of 668	4284	SOA FROM UNIBEST--MAY-JUN-JUL- 2022.exe	powershell.exe
PID 4284 wrote to memory of 668	4284	SOA FROM UNIBEST--MAY-JUN-JUL- 2022.exe	powershell.exe
PID 4284 wrote to memory of 4352	4284	SOA FROM UNIBEST--MAY-JUN-JUL- 2022.exe	InstallUtil.exe
PID 4284 wrote to memory of 4352	4284	SOA FROM UNIBEST--MAY-JUN-JUL- 2022.exe	InstallUtil.exe
PID 4284 wrote to memory of 4352	4284	SOA FROM UNIBEST--MAY-JUN-JUL- 2022.exe	InstallUtil.exe
PID 4284 wrote to memory of 4352	4284	SOA FROM UNIBEST--MAY-JUN-JUL- 2022.exe	InstallUtil.exe
PID 4284 wrote to memory of 4352	4284	SOA FROM UNIBEST--MAY-JUN-JUL- 2022.exe	InstallUtil.exe
PID 4284 wrote to memory of 4352	4284	SOA FROM UNIBEST--MAY-JUN-JUL- 2022.exe	InstallUtil.exe
PID 4284 wrote to memory of 4352	4284	SOA FROM UNIBEST--MAY-JUN-JUL- 2022.exe	InstallUtil.exe
PID 4284 wrote to memory of 4352	4284	SOA FROM UNIBEST--MAY-JUN-JUL- 2022.exe	InstallUtil.exe
PID 4284 wrote to memory of 4352	4284	SOA FROM UNIBEST--MAY-JUN-JUL- 2022.exe	InstallUtil.exe
PID 4284 wrote to memory of 4352	4284	SOA FROM UNIBEST--MAY-JUN-JUL- 2022.exe	InstallUtil.exe
PID 4284 wrote to memory of 4352	4284	SOA FROM UNIBEST--MAY-JUN-JUL- 2022.exe	InstallUtil.exe
PID 4284 wrote to memory of 4352	4284	SOA FROM UNIBEST--MAY-JUN-JUL- 2022.exe	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\SOA FROM UNIBEST--MAY-JUN-JUL- 2022.exe
"C:\Users\Admin\AppData\Local\Temp\SOA FROM UNIBEST--MAY-JUN-JUL- 2022.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4284

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMgA=
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:668

C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
2⤵
PID:4352

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

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

memory/668-138-0x00000000075D0000-0x0000000007C4A000-memory.dmp

Filesize
6.5MB

Download
memory/668-134-0x00000000050B0000-0x00000000056D8000-memory.dmp

Filesize
6.2MB

Download
memory/668-132-0x0000000000000000-mapping.dmp

Download
memory/668-133-0x00000000029A0000-0x00000000029D6000-memory.dmp

Filesize
216KB

Download
memory/668-137-0x0000000005F80000-0x0000000005F9E000-memory.dmp

Filesize
120KB

Download
memory/668-135-0x00000000057E0000-0x0000000005846000-memory.dmp

Filesize
408KB

Download
memory/668-139-0x0000000006470000-0x000000000648A000-memory.dmp

Filesize
104KB

Download
memory/668-136-0x0000000005850000-0x00000000058B6000-memory.dmp

Filesize
408KB

Download
memory/4284-130-0x00000000008F0000-0x000000000092C000-memory.dmp

Filesize
240KB

Download
memory/4284-131-0x0000000006B40000-0x0000000006B62000-memory.dmp

Filesize
136KB

Download
memory/4352-140-0x0000000000000000-mapping.dmp

Download
memory/4352-141-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/4352-142-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/4352-143-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/4352-144-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/4352-145-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads