remcos | 89f4203e055ad6d3b40b74d683ed1ca0436ad4df41c3456f23134c4a15eb6c13

General

Target

ORDER INQUIRY 20230201.exe
Size

1.1MB
MD5

4bc918bf6311c5b753c353efd306547e
SHA1

9b7301fc448a6d9564e6b984363190ffa88ab891
SHA256

89f4203e055ad6d3b40b74d683ed1ca0436ad4df41c3456f23134c4a15eb6c13
SHA512

0d9b575c93cb73de5cfc175335f72cefb8b9d3f5d5e90ab1353b0362fbde0bbcfc288fa5039759fb92ad0154e836c3cefb9636e7a108d5706023611e1ac93cfe
SSDEEP

24576:peOaJr8zw6RgDlCwwWbYqhseWy97+3A3Me83RAiTH/qc4N34:pAJr8zgDlCww6YqhsOY3OKhAiT

Score

10^/10

remcos new rem stub rat

Malware Config

Extracted

Family

remcos

Botnet

NEW REM STUB

C2

onyem.duckdns.org:5050

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-HFP2Q6
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:

ORDER INQUIRY 20230201.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	ORDER INQUIRY 20230201.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

ORDER INQUIRY 20230201.exe

description pid process target process

PID 4656 set thread context of 1492 4656 ORDER INQUIRY 20230201.exe ORDER INQUIRY 20230201.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
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

3924 schtasks.exe

description	pid	process	target process
PID 4656 set thread context of 1492	4656	ORDER INQUIRY 20230201.exe	ORDER INQUIRY 20230201.exe

pid	process
3924	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

Processes:

ORDER INQUIRY 20230201.exepowershell.exe

pid	process
4656	ORDER INQUIRY 20230201.exe
4656	ORDER INQUIRY 20230201.exe
4656	ORDER INQUIRY 20230201.exe
4656	ORDER INQUIRY 20230201.exe
4656	ORDER INQUIRY 20230201.exe
4656	ORDER INQUIRY 20230201.exe
4656	ORDER INQUIRY 20230201.exe
4980	powershell.exe
4980	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

ORDER INQUIRY 20230201.exepowershell.exe

description pid process

Token: SeDebugPrivilege 4656 ORDER INQUIRY 20230201.exe
Token: SeDebugPrivilege 4980 powershell.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

ORDER INQUIRY 20230201.exe

pid process

1492 ORDER INQUIRY 20230201.exe

description	pid	process
Token: SeDebugPrivilege	4656	ORDER INQUIRY 20230201.exe
Token: SeDebugPrivilege	4980	powershell.exe

pid	process
1492	ORDER INQUIRY 20230201.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

ORDER INQUIRY 20230201.exe

description	pid	process	target process
PID 4656 wrote to memory of 4980	4656	ORDER INQUIRY 20230201.exe	powershell.exe
PID 4656 wrote to memory of 4980	4656	ORDER INQUIRY 20230201.exe	powershell.exe
PID 4656 wrote to memory of 4980	4656	ORDER INQUIRY 20230201.exe	powershell.exe
PID 4656 wrote to memory of 3924	4656	ORDER INQUIRY 20230201.exe	schtasks.exe
PID 4656 wrote to memory of 3924	4656	ORDER INQUIRY 20230201.exe	schtasks.exe
PID 4656 wrote to memory of 3924	4656	ORDER INQUIRY 20230201.exe	schtasks.exe
PID 4656 wrote to memory of 1492	4656	ORDER INQUIRY 20230201.exe	ORDER INQUIRY 20230201.exe
PID 4656 wrote to memory of 1492	4656	ORDER INQUIRY 20230201.exe	ORDER INQUIRY 20230201.exe
PID 4656 wrote to memory of 1492	4656	ORDER INQUIRY 20230201.exe	ORDER INQUIRY 20230201.exe
PID 4656 wrote to memory of 1492	4656	ORDER INQUIRY 20230201.exe	ORDER INQUIRY 20230201.exe
PID 4656 wrote to memory of 1492	4656	ORDER INQUIRY 20230201.exe	ORDER INQUIRY 20230201.exe
PID 4656 wrote to memory of 1492	4656	ORDER INQUIRY 20230201.exe	ORDER INQUIRY 20230201.exe
PID 4656 wrote to memory of 1492	4656	ORDER INQUIRY 20230201.exe	ORDER INQUIRY 20230201.exe
PID 4656 wrote to memory of 1492	4656	ORDER INQUIRY 20230201.exe	ORDER INQUIRY 20230201.exe
PID 4656 wrote to memory of 1492	4656	ORDER INQUIRY 20230201.exe	ORDER INQUIRY 20230201.exe
PID 4656 wrote to memory of 1492	4656	ORDER INQUIRY 20230201.exe	ORDER INQUIRY 20230201.exe
PID 4656 wrote to memory of 1492	4656	ORDER INQUIRY 20230201.exe	ORDER INQUIRY 20230201.exe
PID 4656 wrote to memory of 1492	4656	ORDER INQUIRY 20230201.exe	ORDER INQUIRY 20230201.exe

C:\Users\Admin\AppData\Local\Temp\ORDER INQUIRY 20230201.exe
"C:\Users\Admin\AppData\Local\Temp\ORDER INQUIRY 20230201.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4656

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\VlANzLOhprFUhQ.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4980

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\VlANzLOhprFUhQ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp30C4.tmp"
2⤵
- Creates scheduled task(s)
PID:3924

C:\Users\Admin\AppData\Local\Temp\ORDER INQUIRY 20230201.exe
"C:\Users\Admin\AppData\Local\Temp\ORDER INQUIRY 20230201.exe"
2⤵
- Suspicious use of SetWindowsHookEx
PID:1492

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

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\tmp30C4.tmp
Filesize
1KB

MD5
c04dc4d7af83862275b2a910e79e8123

SHA1
5754c42ae4d7183961da614d97d39ba72487009d

SHA256
fdc4446208fc91e98bd8d54c7187effa8501dc14f2659066ffb452ca1e57de66

SHA512
ee982a0fa589dbef14361309c0ff77990223082b8050c75bf2f993e5f3e71ee00d9c5ac44cb8046a81db4343bfcbb3bb654b905870dfea3700a362f33915b11f

Download Submit
memory/1492-144-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1492-143-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1492-145-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1492-142-0x0000000000000000-mapping.dmp

Download
memory/1492-161-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1492-150-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3924-138-0x0000000000000000-mapping.dmp

Download
memory/4656-135-0x0000000004DD0000-0x0000000004DDA000-memory.dmp

Filesize
40KB

Download
memory/4656-132-0x0000000000370000-0x0000000000486000-memory.dmp

Filesize
1.1MB

Download
memory/4656-136-0x0000000008710000-0x00000000087AC000-memory.dmp

Filesize
624KB

Download
memory/4656-134-0x0000000004E00000-0x0000000004E92000-memory.dmp

Filesize
584KB

Download
memory/4656-133-0x00000000053B0000-0x0000000005954000-memory.dmp

Filesize
5.6MB

Download
memory/4980-146-0x0000000004A80000-0x0000000004AA2000-memory.dmp

Filesize
136KB

Download
memory/4980-154-0x00000000074A0000-0x0000000007B1A000-memory.dmp

Filesize
6.5MB

Download
memory/4980-147-0x00000000052A0000-0x0000000005306000-memory.dmp

Filesize
408KB

Download
memory/4980-148-0x00000000054F0000-0x0000000005556000-memory.dmp

Filesize
408KB

Download
memory/4980-149-0x0000000005B50000-0x0000000005B6E000-memory.dmp

Filesize
120KB

Download
memory/4980-139-0x0000000004600000-0x0000000004636000-memory.dmp

Filesize
216KB

Download
memory/4980-151-0x0000000006120000-0x0000000006152000-memory.dmp

Filesize
200KB

Download
memory/4980-152-0x0000000071B40000-0x0000000071B8C000-memory.dmp

Filesize
304KB

Download
memory/4980-153-0x0000000006100000-0x000000000611E000-memory.dmp

Filesize
120KB

Download
memory/4980-141-0x0000000004C70000-0x0000000005298000-memory.dmp

Filesize
6.2MB

Download
memory/4980-155-0x0000000006E60000-0x0000000006E7A000-memory.dmp

Filesize
104KB

Download
memory/4980-156-0x0000000006ED0000-0x0000000006EDA000-memory.dmp

Filesize
40KB

Download
memory/4980-157-0x00000000070E0000-0x0000000007176000-memory.dmp

Filesize
600KB

Download
memory/4980-158-0x0000000007090000-0x000000000709E000-memory.dmp

Filesize
56KB

Download
memory/4980-159-0x00000000071A0000-0x00000000071BA000-memory.dmp

Filesize
104KB

Download
memory/4980-160-0x0000000007180000-0x0000000007188000-memory.dmp

Filesize
32KB

Download
memory/4980-137-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads