remcos | e3f448f340d936b220f0cbdf838a812dde35c13568a48853679d4755984632fc

General

Target

new sample order.scr.exe
Size

1.2MB
MD5

c8bf4105a84397474e1a5b351f2a7879
SHA1

522757ccc1279c4eccf0164a75d140457ba68f90
SHA256

e3f448f340d936b220f0cbdf838a812dde35c13568a48853679d4755984632fc
SHA512

0cbe98011bcf8fcdd50f6cdb81d84172db840767cc5e3185a184807a04f84c9e9262c7b15c2936c51c1e2d52448b8c00e105e5fa5c16669bdd0f09dc0b95a805
SSDEEP

12288:527kW06R/4ventCvUR+YGSXHE8rYd8MOimm830PVV+kLA4IAW9zoSDF9nvIo3S9L:qp4vetCvUaLwPm80PpIV9cSbIOKOMF

Score

10^/10

remcos ip-remcos rat

Malware Config

Extracted

Family

remcos

Botnet

IP-REMCOS

C2

91.192.100.12:2404

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-JS00ZN
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:

new sample order.scr.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	new sample order.scr.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

new sample order.scr.exe

description pid process target process

PID 4956 set thread context of 3880 4956 new sample order.scr.exe new sample order.scr.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

3948 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

powershell.exe

pid process

628 powershell.exe
628 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 628 powershell.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

new sample order.scr.exe

pid process

3880 new sample order.scr.exe

description	pid	process	target process
PID 4956 set thread context of 3880	4956	new sample order.scr.exe	new sample order.scr.exe

pid	process
3948	schtasks.exe

pid	process
628	powershell.exe
628	powershell.exe

description	pid	process
Token: SeDebugPrivilege	628	powershell.exe

pid	process
3880	new sample order.scr.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

new sample order.scr.exe

description	pid	process	target process
PID 4956 wrote to memory of 628	4956	new sample order.scr.exe	powershell.exe
PID 4956 wrote to memory of 628	4956	new sample order.scr.exe	powershell.exe
PID 4956 wrote to memory of 628	4956	new sample order.scr.exe	powershell.exe
PID 4956 wrote to memory of 3948	4956	new sample order.scr.exe	schtasks.exe
PID 4956 wrote to memory of 3948	4956	new sample order.scr.exe	schtasks.exe
PID 4956 wrote to memory of 3948	4956	new sample order.scr.exe	schtasks.exe
PID 4956 wrote to memory of 3880	4956	new sample order.scr.exe	new sample order.scr.exe
PID 4956 wrote to memory of 3880	4956	new sample order.scr.exe	new sample order.scr.exe
PID 4956 wrote to memory of 3880	4956	new sample order.scr.exe	new sample order.scr.exe
PID 4956 wrote to memory of 3880	4956	new sample order.scr.exe	new sample order.scr.exe
PID 4956 wrote to memory of 3880	4956	new sample order.scr.exe	new sample order.scr.exe
PID 4956 wrote to memory of 3880	4956	new sample order.scr.exe	new sample order.scr.exe
PID 4956 wrote to memory of 3880	4956	new sample order.scr.exe	new sample order.scr.exe
PID 4956 wrote to memory of 3880	4956	new sample order.scr.exe	new sample order.scr.exe
PID 4956 wrote to memory of 3880	4956	new sample order.scr.exe	new sample order.scr.exe
PID 4956 wrote to memory of 3880	4956	new sample order.scr.exe	new sample order.scr.exe
PID 4956 wrote to memory of 3880	4956	new sample order.scr.exe	new sample order.scr.exe
PID 4956 wrote to memory of 3880	4956	new sample order.scr.exe	new sample order.scr.exe

C:\Users\Admin\AppData\Local\Temp\new sample order.scr.exe
"C:\Users\Admin\AppData\Local\Temp\new sample order.scr.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4956

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\kxyzbuoXXJJ.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:628

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\kxyzbuoXXJJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp40B2.tmp"
2⤵
- Creates scheduled task(s)
PID:3948

C:\Users\Admin\AppData\Local\Temp\new sample order.scr.exe
"C:\Users\Admin\AppData\Local\Temp\new sample order.scr.exe"
2⤵
- Suspicious use of SetWindowsHookEx
PID:3880

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmp40B2.tmp
Filesize
1KB

MD5
82c1cfd470396ffe762bfb05cc129516

SHA1
f47e9165b6e8e41307577464a68d6d8c33b27a3d

SHA256
8a3dfe9c7709d41383130e7ad1470d3fa03acc100ad7615141da59a1f7f52983

SHA512
762fea9bcfab3faf7a98c96ec1d48e9d200161d36b6fdf5911da2b58a4dfc75204ad599cfe63ea81a0d91a0f9a117b4f490175e9e886a5c51c3da5a127a76396

Download Submit
memory/628-153-0x00000000060C0000-0x00000000060DE000-memory.dmp

Filesize
120KB

Download
memory/628-140-0x0000000002200000-0x0000000002236000-memory.dmp

Filesize
216KB

Download
memory/628-155-0x0000000006E20000-0x0000000006E3A000-memory.dmp

Filesize
104KB

Download
memory/628-154-0x0000000007460000-0x0000000007ADA000-memory.dmp

Filesize
6.5MB

Download
memory/628-148-0x0000000005480000-0x00000000054E6000-memory.dmp

Filesize
408KB

Download
memory/628-138-0x0000000000000000-mapping.dmp

Download
memory/628-157-0x00000000070A0000-0x0000000007136000-memory.dmp

Filesize
600KB

Download
memory/628-156-0x0000000006E90000-0x0000000006E9A000-memory.dmp

Filesize
40KB

Download
memory/628-160-0x0000000007140000-0x0000000007148000-memory.dmp

Filesize
32KB

Download
memory/628-142-0x0000000004D50000-0x0000000005378000-memory.dmp

Filesize
6.2MB

Download
memory/628-152-0x0000000071890000-0x00000000718DC000-memory.dmp

Filesize
304KB

Download
memory/628-151-0x00000000060E0000-0x0000000006112000-memory.dmp

Filesize
200KB

Download
memory/628-150-0x0000000005B20000-0x0000000005B3E000-memory.dmp

Filesize
120KB

Download
memory/628-146-0x0000000004C40000-0x0000000004C62000-memory.dmp

Filesize
136KB

Download
memory/628-159-0x0000000007160000-0x000000000717A000-memory.dmp

Filesize
104KB

Download
memory/628-158-0x0000000007050000-0x000000000705E000-memory.dmp

Filesize
56KB

Download
memory/3880-144-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3880-145-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3880-149-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3880-143-0x0000000000000000-mapping.dmp

Download
memory/3880-161-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3880-147-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3948-139-0x0000000000000000-mapping.dmp

Download
memory/4956-133-0x00000000052C0000-0x0000000005864000-memory.dmp

Filesize
5.6MB

Download
memory/4956-132-0x00000000001C0000-0x00000000002FA000-memory.dmp

Filesize
1.2MB

Download
memory/4956-137-0x0000000008B60000-0x0000000008BC6000-memory.dmp

Filesize
408KB

Download
memory/4956-135-0x0000000004C60000-0x0000000004C6A000-memory.dmp

Filesize
40KB

Download
memory/4956-134-0x0000000004D10000-0x0000000004DA2000-memory.dmp

Filesize
584KB

Download
memory/4956-136-0x0000000008A00000-0x0000000008A9C000-memory.dmp

Filesize
624KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads