remcos | fbd5d136c821657e035e512a0b0210e6ece5c4c4e512ed457202bdcfe17fd5cd

Analysis

max time kernel
148s
max time network
138s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
05-10-2022 10:45

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General

Target

Updated List.exe
Size

1.7MB
MD5

b5609bb5a32ba16c87d51ac583436887
SHA1

69353577c7468e049fe07a58bb6bae4a45263cf9
SHA256

fbd5d136c821657e035e512a0b0210e6ece5c4c4e512ed457202bdcfe17fd5cd
SHA512

94a38e80941dd209bcae371aa29e515bda0565efb6cc9293bd52f887773b4d2c3facdf5b9a1d2b6198e3f971097d1b51fa086cdd1b64448dda929d9507262fcc
SSDEEP

12288:2njoXFxJID+9fGS7msccqr+NEiTEnWZQzjFeM6DJOjB9sTTHyZDEJZWxfP4FU7l:fOsMha4nYQb6VOuQHxmUfNK

Score

10^/10

remcos remoteclient persistence rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteClient

45.155.165.139:57604

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-2HZ6JC
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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Updated List.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Qsvdsykhl = "\"C:\\Users\\Admin\\AppData\\Roaming\\Iwezte\\Qsvdsykhl.exe\""	Updated List.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

Updated List.exe

description pid process target process

PID 4900 set thread context of 1252 4900 Updated List.exe Updated List.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

Updated List.exe

description pid process

Token: SeDebugPrivilege 4900 Updated List.exe

description	pid	process	target process
PID 4900 set thread context of 1252	4900	Updated List.exe	Updated List.exe

description	pid	process
Token: SeDebugPrivilege	4900	Updated List.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

Updated List.exe

description	pid	process	target process
PID 4900 wrote to memory of 1252	4900	Updated List.exe	Updated List.exe
PID 4900 wrote to memory of 1252	4900	Updated List.exe	Updated List.exe
PID 4900 wrote to memory of 1252	4900	Updated List.exe	Updated List.exe
PID 4900 wrote to memory of 1252	4900	Updated List.exe	Updated List.exe
PID 4900 wrote to memory of 1252	4900	Updated List.exe	Updated List.exe
PID 4900 wrote to memory of 1252	4900	Updated List.exe	Updated List.exe
PID 4900 wrote to memory of 1252	4900	Updated List.exe	Updated List.exe
PID 4900 wrote to memory of 1252	4900	Updated List.exe	Updated List.exe
PID 4900 wrote to memory of 1252	4900	Updated List.exe	Updated List.exe
PID 4900 wrote to memory of 1252	4900	Updated List.exe	Updated List.exe
PID 4900 wrote to memory of 1252	4900	Updated List.exe	Updated List.exe
PID 4900 wrote to memory of 1252	4900	Updated List.exe	Updated List.exe

C:\Users\Admin\AppData\Local\Temp\Updated List.exe
"C:\Users\Admin\AppData\Local\Temp\Updated List.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4900

C:\Users\Admin\AppData\Local\Temp\Updated List.exe
"C:\Users\Admin\AppData\Local\Temp\Updated List.exe"
2⤵
PID:1252

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1252-137-0x0000000000000000-mapping.dmp

Download
memory/1252-138-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1252-139-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1252-140-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1252-141-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1252-142-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4900-132-0x0000000000730000-0x00000000008F2000-memory.dmp

Filesize
1.8MB

Download
memory/4900-133-0x0000000005460000-0x0000000005482000-memory.dmp

Filesize
136KB

Download
memory/4900-134-0x0000000005890000-0x00000000058F6000-memory.dmp

Filesize
408KB

Download
memory/4900-135-0x0000000005E30000-0x0000000005EC2000-memory.dmp

Filesize
584KB

Download
memory/4900-136-0x0000000006480000-0x0000000006A24000-memory.dmp

Filesize
5.6MB

Download