remcos | 1744bcc45c4af593d5f3a72c972bc86d1158fb3408fe03db2d80d28b2c51d7c8

Resubmissions

17/02/2025, 13:50

250217-q5qthszjgm 10

17/02/2025, 13:26

250217-qpzrgszjar 10

Analysis

max time kernel
2s
max time network
4s
platform
windows10-ltsc 2021_x64
resource
win10ltsc2021-20250211-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20250211-enlocale:en-usos:windows10-ltsc 2021-x64system
submitted
17/02/2025, 13:50

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

Windows_Security_Patch_KB5021130.exe
Size

618KB
MD5

4b7cb7621606abd6ffb6d38bafafb8e9
SHA1

831c1c044cdf6515ce3444444242015e8b52271f
SHA256

1744bcc45c4af593d5f3a72c972bc86d1158fb3408fe03db2d80d28b2c51d7c8
SHA512

98437691db7c50e50ece2de7caffddfe6a5bcb17af69754377bfbb195865a1362df6e911dfd6b7c9ebb17f98fae27c743a8518dc9348bcc10962f53e87e89d3a
SSDEEP

12288:BrtxWWIHuw2W41RfGx6UL7Uhd9BKcaQID8G3e3JgFaX:BanHubW4DfGUtKcadQ3JO0

Score

10^/10

remcos googlegroupaccount2 discovery rat

Malware Config

Extracted

Family

remcos

Botnet

googlegroupaccount2

107.174.65.146:1194

Attributes

audio_folder
MicRecords
audio_path
ApplicationPath
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
googlegroupaccount.exe
copy_folder
googlegroupaccount
delete_file
false
hide_file
false
hide_keylog_file
false
install_flag
true
install_path
%AppData%
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
googlegroupaccount
mouse_option
false
mutex
Rmc-3UY7X7
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
Remcos family
remcos

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4608 set thread context of 2480	4608	Windows_Security_Patch_KB5021130.exe	83

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2144	2480	WerFault.exe	83

System Location Discovery: System Language Discovery 1 TTPs 1 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	Windows_Security_Patch_KB5021130.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4608 wrote to memory of 2480	4608	Windows_Security_Patch_KB5021130.exe	83
PID 4608 wrote to memory of 2480	4608	Windows_Security_Patch_KB5021130.exe	83
PID 4608 wrote to memory of 2480	4608	Windows_Security_Patch_KB5021130.exe	83
PID 4608 wrote to memory of 2480	4608	Windows_Security_Patch_KB5021130.exe	83
PID 4608 wrote to memory of 2480	4608	Windows_Security_Patch_KB5021130.exe	83
PID 4608 wrote to memory of 2480	4608	Windows_Security_Patch_KB5021130.exe	83
PID 4608 wrote to memory of 2480	4608	Windows_Security_Patch_KB5021130.exe	83
PID 4608 wrote to memory of 2480	4608	Windows_Security_Patch_KB5021130.exe	83
PID 4608 wrote to memory of 2480	4608	Windows_Security_Patch_KB5021130.exe	83
PID 4608 wrote to memory of 2480	4608	Windows_Security_Patch_KB5021130.exe	83

C:\Users\Admin\AppData\Local\Temp\Windows_Security_Patch_KB5021130.exe
"C:\Users\Admin\AppData\Local\Temp\Windows_Security_Patch_KB5021130.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4608
- C:\Users\Admin\AppData\Local\Temp\Windows_Security_Patch_KB5021130.exe
  "C:\Users\Admin\AppData\Local\Temp\Windows_Security_Patch_KB5021130.exe"
  2⤵
  PID:2480
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2480 -s 548
    3⤵
    - Program crash
    PID:2144

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2480 -ip 2480
1⤵
PID:3820

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

Loading Replay Monitor...

Downloads

memory/2480-8-0x0000000000580000-0x0000000000600000-memory.dmp

Filesize
512KB

Download
memory/2480-3-0x0000000000580000-0x0000000000600000-memory.dmp

Filesize
512KB

Download
memory/2480-13-0x0000000000580000-0x0000000000600000-memory.dmp

Filesize
512KB

Download
memory/4608-0-0x0000000073F8E000-0x0000000073F8F000-memory.dmp

Filesize
4KB

Download
memory/4608-1-0x00000000001A0000-0x0000000000242000-memory.dmp

Filesize
648KB

Download
memory/4608-2-0x00000000050E0000-0x0000000005686000-memory.dmp

Filesize
5.6MB

Download
memory/4608-12-0x0000000073F80000-0x0000000074731000-memory.dmp

Filesize
7.7MB

Download
memory/4608-14-0x0000000073F80000-0x0000000074731000-memory.dmp

Filesize
7.7MB

Download