remcos | 275ef39a84600a2be38a7b0385992f680fea92a3cc293bb890d56fe6080b1182

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
26-09-2024 21:31

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General

Target

275ef39a84600a2be38a7b0385992f680fea92a3cc293bb890d56fe6080b1182.exe
Size

1.9MB
MD5

366d796c570c3932a0d187488b310c99
SHA1

d6a2764e137a785034c785aa142409629f98d491
SHA256

275ef39a84600a2be38a7b0385992f680fea92a3cc293bb890d56fe6080b1182
SHA512

eaa572cce3a75bb8727901ea0d46e8d857f0760d4077db13bf02627a935d98b7cbf4495b22e291e6558ca888bac39eab363d0b21f81f6e953f91f69ab918f815
SSDEEP

24576:Mb1yoJZTkVp+fOIbGER/J520i5GpyAAiTY1rD:Msofw7+979J520iX0TY1/

Score

10^/10

remcos remotehost discovery rat

Malware Config

Extracted

Family

remcos

Version

5.1.2 Light

Botnet

RemoteHost

127.0.0.1:2404

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-HI78ZR
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
take_screenshot_option
false
take_screenshot_time
5

Signatures

Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1088 set thread context of 912	1088	275ef39a84600a2be38a7b0385992f680fea92a3cc293bb890d56fe6080b1182.exe	89

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	275ef39a84600a2be38a7b0385992f680fea92a3cc293bb890d56fe6080b1182.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	iexplore.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
912	iexplore.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
912	iexplore.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1088	275ef39a84600a2be38a7b0385992f680fea92a3cc293bb890d56fe6080b1182.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1088 wrote to memory of 912	1088	275ef39a84600a2be38a7b0385992f680fea92a3cc293bb890d56fe6080b1182.exe	89
PID 1088 wrote to memory of 912	1088	275ef39a84600a2be38a7b0385992f680fea92a3cc293bb890d56fe6080b1182.exe	89
PID 1088 wrote to memory of 912	1088	275ef39a84600a2be38a7b0385992f680fea92a3cc293bb890d56fe6080b1182.exe	89
PID 1088 wrote to memory of 912	1088	275ef39a84600a2be38a7b0385992f680fea92a3cc293bb890d56fe6080b1182.exe	89
PID 1088 wrote to memory of 912	1088	275ef39a84600a2be38a7b0385992f680fea92a3cc293bb890d56fe6080b1182.exe	89
PID 1088 wrote to memory of 912	1088	275ef39a84600a2be38a7b0385992f680fea92a3cc293bb890d56fe6080b1182.exe	89
PID 1088 wrote to memory of 912	1088	275ef39a84600a2be38a7b0385992f680fea92a3cc293bb890d56fe6080b1182.exe	89
PID 1088 wrote to memory of 912	1088	275ef39a84600a2be38a7b0385992f680fea92a3cc293bb890d56fe6080b1182.exe	89
PID 1088 wrote to memory of 912	1088	275ef39a84600a2be38a7b0385992f680fea92a3cc293bb890d56fe6080b1182.exe	89
PID 1088 wrote to memory of 912	1088	275ef39a84600a2be38a7b0385992f680fea92a3cc293bb890d56fe6080b1182.exe	89
PID 1088 wrote to memory of 912	1088	275ef39a84600a2be38a7b0385992f680fea92a3cc293bb890d56fe6080b1182.exe	89
PID 1088 wrote to memory of 912	1088	275ef39a84600a2be38a7b0385992f680fea92a3cc293bb890d56fe6080b1182.exe	89

C:\Users\Admin\AppData\Local\Temp\275ef39a84600a2be38a7b0385992f680fea92a3cc293bb890d56fe6080b1182.exe
"C:\Users\Admin\AppData\Local\Temp\275ef39a84600a2be38a7b0385992f680fea92a3cc293bb890d56fe6080b1182.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1088
- C:\Program Files (x86)\Internet Explorer\iexplore.exe
  "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  PID:912

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/912-2-0x0000000000400000-0x0000000000475000-memory.dmp

Filesize
468KB

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