remcos | e3f448f340d936b220f0cbdf838a812dde35c13568a48853679d4755984632fc

General

Target

new sample order.scr
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

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	new sample order.scr

Suspicious use of SetThreadContext 1 IoCs

Processes:

new sample order.scr

description pid process target process

PID 5072 set thread context of 4604 5072 new sample order.scr new sample order.scr
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

4672 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

powershell.exe

pid process

3680 powershell.exe
3680 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 3680 powershell.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

new sample order.scr

pid process

4604 new sample order.scr

description	pid	process	target process
PID 5072 set thread context of 4604	5072	new sample order.scr	new sample order.scr

pid	process
4672	schtasks.exe

pid	process
3680	powershell.exe
3680	powershell.exe

description	pid	process
Token: SeDebugPrivilege	3680	powershell.exe

pid	process
4604	new sample order.scr

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

new sample order.scr

description	pid	process	target process
PID 5072 wrote to memory of 3680	5072	new sample order.scr	powershell.exe
PID 5072 wrote to memory of 3680	5072	new sample order.scr	powershell.exe
PID 5072 wrote to memory of 3680	5072	new sample order.scr	powershell.exe
PID 5072 wrote to memory of 4672	5072	new sample order.scr	schtasks.exe
PID 5072 wrote to memory of 4672	5072	new sample order.scr	schtasks.exe
PID 5072 wrote to memory of 4672	5072	new sample order.scr	schtasks.exe
PID 5072 wrote to memory of 4604	5072	new sample order.scr	new sample order.scr
PID 5072 wrote to memory of 4604	5072	new sample order.scr	new sample order.scr
PID 5072 wrote to memory of 4604	5072	new sample order.scr	new sample order.scr
PID 5072 wrote to memory of 4604	5072	new sample order.scr	new sample order.scr
PID 5072 wrote to memory of 4604	5072	new sample order.scr	new sample order.scr
PID 5072 wrote to memory of 4604	5072	new sample order.scr	new sample order.scr
PID 5072 wrote to memory of 4604	5072	new sample order.scr	new sample order.scr
PID 5072 wrote to memory of 4604	5072	new sample order.scr	new sample order.scr
PID 5072 wrote to memory of 4604	5072	new sample order.scr	new sample order.scr
PID 5072 wrote to memory of 4604	5072	new sample order.scr	new sample order.scr
PID 5072 wrote to memory of 4604	5072	new sample order.scr	new sample order.scr
PID 5072 wrote to memory of 4604	5072	new sample order.scr	new sample order.scr

C:\Users\Admin\AppData\Local\Temp\new sample order.scr
"C:\Users\Admin\AppData\Local\Temp\new sample order.scr" /S
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:5072

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:3680

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\kxyzbuoXXJJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5EE9.tmp"
2⤵
- Creates scheduled task(s)
PID:4672

C:\Users\Admin\AppData\Local\Temp\new sample order.scr
"C:\Users\Admin\AppData\Local\Temp\new sample order.scr"
2⤵
- Suspicious use of SetWindowsHookEx
PID:4604

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\tmp5EE9.tmp
Filesize
1KB

MD5
ce1df5cbbe32e10c57018a00d87061ce

SHA1
7442c164fdc65f445e30479fdeeb31be73f95154

SHA256
1f000bc3a67bd21f23b2b0b86d2d41a012e851aa8d196e98e77a05c3b97f126d

SHA512
89acca5e28f8e1e0ff20838837d0a2b33d37e491ff1fbc1184bb0060668ae2a7c01eca1f14b45c9adf70c8c56d586e2831d911715024b2f43aa553de151abc70

Download Submit
memory/3680-140-0x0000000002960000-0x0000000002996000-memory.dmp

Filesize
216KB

Download
memory/3680-155-0x00000000075E0000-0x00000000075FA000-memory.dmp

Filesize
104KB

Download
memory/3680-158-0x0000000007810000-0x000000000781E000-memory.dmp

Filesize
56KB

Download
memory/3680-157-0x0000000007860000-0x00000000078F6000-memory.dmp

Filesize
600KB

Download
memory/3680-160-0x0000000007900000-0x0000000007908000-memory.dmp

Filesize
32KB

Download
memory/3680-138-0x0000000000000000-mapping.dmp

Download
memory/3680-159-0x0000000007920000-0x000000000793A000-memory.dmp

Filesize
104KB

Download
memory/3680-150-0x00000000062E0000-0x00000000062FE000-memory.dmp

Filesize
120KB

Download
memory/3680-156-0x0000000007660000-0x000000000766A000-memory.dmp

Filesize
40KB

Download
memory/3680-142-0x0000000005390000-0x00000000059B8000-memory.dmp

Filesize
6.2MB

Download
memory/3680-154-0x0000000007C30000-0x00000000082AA000-memory.dmp

Filesize
6.5MB

Download
memory/3680-153-0x0000000006880000-0x000000000689E000-memory.dmp

Filesize
120KB

Download
memory/3680-152-0x0000000070C60000-0x0000000070CAC000-memory.dmp

Filesize
304KB

Download
memory/3680-151-0x00000000068A0000-0x00000000068D2000-memory.dmp

Filesize
200KB

Download
memory/3680-147-0x00000000052B0000-0x00000000052D2000-memory.dmp

Filesize
136KB

Download
memory/3680-148-0x00000000059C0000-0x0000000005A26000-memory.dmp

Filesize
408KB

Download
memory/4604-146-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4604-149-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4604-145-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4604-144-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4604-143-0x0000000000000000-mapping.dmp

Download
memory/4604-161-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4672-139-0x0000000000000000-mapping.dmp

Download
memory/5072-132-0x0000000000900000-0x0000000000A3A000-memory.dmp

Filesize
1.2MB

Download
memory/5072-137-0x00000000092A0000-0x0000000009306000-memory.dmp

Filesize
408KB

Download
memory/5072-136-0x00000000091D0000-0x000000000926C000-memory.dmp

Filesize
624KB

Download
memory/5072-135-0x0000000005550000-0x000000000555A000-memory.dmp

Filesize
40KB

Download
memory/5072-134-0x00000000053C0000-0x0000000005452000-memory.dmp

Filesize
584KB

Download
memory/5072-133-0x00000000058D0000-0x0000000005E74000-memory.dmp

Filesize
5.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads