remcos | 4467138cf6bec169b6c0cb9abe48e86202b75a5301828766b059c8af06d4a0f5

Analysis

max time kernel
147s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
23-06-2024 06:05

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General

Target

4467138cf6bec169b6c0cb9abe48e86202b75a5301828766b059c8af06d4a0f5_NeikiAnalytics.exe
Size

137KB
MD5

e00031d57b49909b95ded10db62617d0
SHA1

18058c6408248bd17b68344118e03a8ca30b47c3
SHA256

4467138cf6bec169b6c0cb9abe48e86202b75a5301828766b059c8af06d4a0f5
SHA512

5cc7b09643456ac64e1a87437882d021be18c07b70d21b104c4cea0e0230f874732dd364a6ae7840ebce511aafc2e365e1fc71c02f86f7c7ebf8564db0bc50fc
SSDEEP

1536:ITHiPBX4nDzMyRXGHrc9YRHqbTypgpmb5Q+ZReSdhk/J+YLgD3mrxb53cSuYQjKR:xPd4n/M+WLcilrpgGH/GwY87mVmIXB

Score

10^/10

remcos host persistence rat

Malware Config

Extracted

Family

remcos

Version

1.7 Pro

Botnet

Host

systemcontrol.ddns.net:45000

systemcontrol2.ddns.net:45000

Attributes

audio_folder
audio
audio_path
%AppData%
audio_record_time
5
connect_delay
0
connect_interval
5
copy_file
OfficeUpgrade.exe
copy_folder
OfficeUpgrade
delete_file
false
hide_file
true
hide_keylog_file
true
install_flag
false
install_path
%AppData%
keylog_crypt
true
keylog_file
Upgrader.dat
keylog_flag
false
keylog_folder
Upgrader
keylog_path
%AppData%
mouse_option
false
mutex
req_khauflaoyr
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screens
screenshot_path
%AppData%
screenshot_time
1
startup_value
OfficeUpgrade
take_screenshot_option
false
take_screenshot_time
5

Signatures

Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos
Executes dropped EXE 2 IoCs

Processes:

wn2ra4ohzdr.exewn2ra4ohzdr.exe

pid process

2664 wn2ra4ohzdr.exe
3024 wn2ra4ohzdr.exe
Loads dropped DLL 1 IoCs

Processes:

4467138cf6bec169b6c0cb9abe48e86202b75a5301828766b059c8af06d4a0f5_NeikiAnalytics.exe

pid process

2368 4467138cf6bec169b6c0cb9abe48e86202b75a5301828766b059c8af06d4a0f5_NeikiAnalytics.exe

pid	process
2664	wn2ra4ohzdr.exe
3024	wn2ra4ohzdr.exe

pid	process
2368	4467138cf6bec169b6c0cb9abe48e86202b75a5301828766b059c8af06d4a0f5_NeikiAnalytics.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

4467138cf6bec169b6c0cb9abe48e86202b75a5301828766b059c8af06d4a0f5_NeikiAnalytics.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Windows\CurrentVersion\Run\raj4dkhhiap = "C:\\Users\\Admin\\AppData\\Roaming\\raj4dkhhiap\\wn2ra4ohzdr.exe"	4467138cf6bec169b6c0cb9abe48e86202b75a5301828766b059c8af06d4a0f5_NeikiAnalytics.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

wn2ra4ohzdr.exe

description pid process target process

PID 2664 set thread context of 3024 2664 wn2ra4ohzdr.exe wn2ra4ohzdr.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

wn2ra4ohzdr.exe

pid process

3024 wn2ra4ohzdr.exe

description	pid	process	target process
PID 2664 set thread context of 3024	2664	wn2ra4ohzdr.exe	wn2ra4ohzdr.exe

pid	process
3024	wn2ra4ohzdr.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

4467138cf6bec169b6c0cb9abe48e86202b75a5301828766b059c8af06d4a0f5_NeikiAnalytics.exewn2ra4ohzdr.exe

description	pid	process	target process
PID 2368 wrote to memory of 2664	2368	4467138cf6bec169b6c0cb9abe48e86202b75a5301828766b059c8af06d4a0f5_NeikiAnalytics.exe	wn2ra4ohzdr.exe
PID 2368 wrote to memory of 2664	2368	4467138cf6bec169b6c0cb9abe48e86202b75a5301828766b059c8af06d4a0f5_NeikiAnalytics.exe	wn2ra4ohzdr.exe
PID 2368 wrote to memory of 2664	2368	4467138cf6bec169b6c0cb9abe48e86202b75a5301828766b059c8af06d4a0f5_NeikiAnalytics.exe	wn2ra4ohzdr.exe
PID 2368 wrote to memory of 2664	2368	4467138cf6bec169b6c0cb9abe48e86202b75a5301828766b059c8af06d4a0f5_NeikiAnalytics.exe	wn2ra4ohzdr.exe
PID 2664 wrote to memory of 3024	2664	wn2ra4ohzdr.exe	wn2ra4ohzdr.exe
PID 2664 wrote to memory of 3024	2664	wn2ra4ohzdr.exe	wn2ra4ohzdr.exe
PID 2664 wrote to memory of 3024	2664	wn2ra4ohzdr.exe	wn2ra4ohzdr.exe
PID 2664 wrote to memory of 3024	2664	wn2ra4ohzdr.exe	wn2ra4ohzdr.exe
PID 2664 wrote to memory of 3024	2664	wn2ra4ohzdr.exe	wn2ra4ohzdr.exe
PID 2664 wrote to memory of 3024	2664	wn2ra4ohzdr.exe	wn2ra4ohzdr.exe
PID 2664 wrote to memory of 3024	2664	wn2ra4ohzdr.exe	wn2ra4ohzdr.exe
PID 2664 wrote to memory of 3024	2664	wn2ra4ohzdr.exe	wn2ra4ohzdr.exe
PID 2664 wrote to memory of 3024	2664	wn2ra4ohzdr.exe	wn2ra4ohzdr.exe
PID 2664 wrote to memory of 3024	2664	wn2ra4ohzdr.exe	wn2ra4ohzdr.exe

C:\Users\Admin\AppData\Local\Temp\4467138cf6bec169b6c0cb9abe48e86202b75a5301828766b059c8af06d4a0f5_NeikiAnalytics.exe
"C:\Users\Admin\AppData\Local\Temp\4467138cf6bec169b6c0cb9abe48e86202b75a5301828766b059c8af06d4a0f5_NeikiAnalytics.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2368

C:\Users\Admin\AppData\Roaming\raj4dkhhiap\wn2ra4ohzdr.exe
"C:\Users\Admin\AppData\Roaming\raj4dkhhiap\wn2ra4ohzdr.exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2664

C:\Users\Admin\AppData\Roaming\raj4dkhhiap\wn2ra4ohzdr.exe
"C:\Users\Admin\AppData\Roaming\raj4dkhhiap\wn2ra4ohzdr.exe"
3⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:3024

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads

\Users\Admin\AppData\Roaming\raj4dkhhiap\wn2ra4ohzdr.exe
Filesize
137KB

MD5
66c2f338f80512975a165b60317992e3

SHA1
07e32cb0e5c2bfbd3a2f0e4f8d0bed194af670ff

SHA256
5735cd98674934fca4ef8a7ca98e1d8c9fb8ffacfb7176eff97c8090a405b01d

SHA512
22db849b9aa7757275fe85c46b7a0c4c3fded2f44e02cb393862aaffa8404b46c382f4d1704f7dd000a3009acf1a7e77b01fe701dc5aba26758b6ce5aac6434b

Download Submit
memory/2368-0-0x000000007466E000-0x000000007466F000-memory.dmp

Filesize
4KB

Download
memory/2368-1-0x0000000000EF0000-0x0000000000F18000-memory.dmp

Filesize
160KB

Download
memory/2368-2-0x0000000074660000-0x0000000074D4E000-memory.dmp

Filesize
6.9MB

Download
memory/2368-3-0x0000000000610000-0x0000000000630000-memory.dmp

Filesize
128KB

Download
memory/2368-12-0x0000000074660000-0x0000000074D4E000-memory.dmp

Filesize
6.9MB

Download
memory/2664-13-0x0000000074660000-0x0000000074D4E000-memory.dmp

Filesize
6.9MB

Download
memory/2664-14-0x00000000013E0000-0x0000000001408000-memory.dmp

Filesize
160KB

Download
memory/2664-15-0x0000000074660000-0x0000000074D4E000-memory.dmp

Filesize
6.9MB

Download
memory/2664-38-0x0000000074660000-0x0000000074D4E000-memory.dmp

Filesize
6.9MB

Download
memory/3024-18-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3024-28-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3024-27-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3024-25-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3024-23-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3024-20-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3024-33-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3024-34-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3024-37-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3024-16-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3024-41-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download