remcos | 3d9599c4660790e2a9ec335ff9384efb10443eae67d22925697fd30d48f87414

Analysis

max time kernel
148s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
31-01-2023 13:35

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General

Target

tmp.exe
Size

2.7MB
MD5

79f47ea1ffef2cbc356aaa87610d9168
SHA1

3dfa9f0128fbcb080f2dd22ccd5917d2d57d06be
SHA256

3d9599c4660790e2a9ec335ff9384efb10443eae67d22925697fd30d48f87414
SHA512

4330bc516693b647da60de7e109d811321e98164362ca495bd0f4402c3f42f7eb1fb265cdae685655b51ef837909c895281587ab4f9af987e9550ab495433cb6
SSDEEP

49152:X3VxHbk7Rv6msAP/RpWY23Y7MrKSmSejpe:Hbr/O/BO+SV

Score

10^/10

remcos solution rat

Malware Config

Extracted

Family

remcos

Botnet

Solution

infoprokaps.ddns.net:6838

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-SJ6VHY
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:

tmp.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation tmp.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

tmp.exe

description pid process target process

PID 1048 set thread context of 4200 1048 tmp.exe tmp.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 2 IoCs

Processes:

powershell.exe

pid process

5040 powershell.exe
5040 powershell.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

tmp.exepowershell.exe

description pid process

Token: SeDebugPrivilege 1048 tmp.exe
Token: SeDebugPrivilege 5040 powershell.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

tmp.exe

pid process

4200 tmp.exe

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

description	pid	process	target process
PID 1048 set thread context of 4200	1048	tmp.exe	tmp.exe

pid	process
5040	powershell.exe
5040	powershell.exe

description	pid	process
Token: SeDebugPrivilege	1048	tmp.exe
Token: SeDebugPrivilege	5040	powershell.exe

pid	process
4200	tmp.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

tmp.exe

description	pid	process	target process
PID 1048 wrote to memory of 5040	1048	tmp.exe	powershell.exe
PID 1048 wrote to memory of 5040	1048	tmp.exe	powershell.exe
PID 1048 wrote to memory of 5040	1048	tmp.exe	powershell.exe
PID 1048 wrote to memory of 4200	1048	tmp.exe	tmp.exe
PID 1048 wrote to memory of 4200	1048	tmp.exe	tmp.exe
PID 1048 wrote to memory of 4200	1048	tmp.exe	tmp.exe
PID 1048 wrote to memory of 4200	1048	tmp.exe	tmp.exe
PID 1048 wrote to memory of 4200	1048	tmp.exe	tmp.exe
PID 1048 wrote to memory of 4200	1048	tmp.exe	tmp.exe
PID 1048 wrote to memory of 4200	1048	tmp.exe	tmp.exe
PID 1048 wrote to memory of 4200	1048	tmp.exe	tmp.exe
PID 1048 wrote to memory of 4200	1048	tmp.exe	tmp.exe
PID 1048 wrote to memory of 4200	1048	tmp.exe	tmp.exe
PID 1048 wrote to memory of 4200	1048	tmp.exe	tmp.exe
PID 1048 wrote to memory of 4200	1048	tmp.exe	tmp.exe

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1048

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMwA1AA==
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5040

C:\Users\Admin\AppData\Local\Temp\tmp.exe
C:\Users\Admin\AppData\Local\Temp\tmp.exe
2⤵
- Suspicious use of SetWindowsHookEx
PID:4200

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1048-133-0x0000000005330000-0x0000000005352000-memory.dmp

Filesize
136KB

Download
memory/1048-132-0x00000000002B0000-0x0000000000568000-memory.dmp

Filesize
2.7MB

Download
memory/4200-142-0x0000000000000000-mapping.dmp

Download
memory/4200-147-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4200-146-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4200-145-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4200-144-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4200-143-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/5040-136-0x0000000004FB0000-0x00000000055D8000-memory.dmp

Filesize
6.2MB

Download
memory/5040-141-0x0000000006420000-0x000000000643A000-memory.dmp

Filesize
104KB

Download
memory/5040-140-0x0000000007780000-0x0000000007DFA000-memory.dmp

Filesize
6.5MB

Download
memory/5040-139-0x0000000005F30000-0x0000000005F4E000-memory.dmp

Filesize
120KB

Download
memory/5040-138-0x00000000058F0000-0x0000000005956000-memory.dmp

Filesize
408KB

Download
memory/5040-137-0x00000000057D0000-0x0000000005836000-memory.dmp

Filesize
408KB

Download
memory/5040-135-0x0000000004940000-0x0000000004976000-memory.dmp

Filesize
216KB

Download
memory/5040-134-0x0000000000000000-mapping.dmp

Download