remcos | 3245fd1b8227b9b542c71d8e1f7c19de8339de9eb02b1329436f8a6b09f1b16c

Analysis

max time kernel
150s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
12-10-2024 23:17

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General

Target

3245fd1b8227b9b542c71d8e1f7c19de8339de9eb02b1329436f8a6b09f1b16c.exe
Size

658KB
MD5

27ddea14dd1f3a0f64fae63318047ea1
SHA1

2d6774e7b22c4d5303ab3369ca008385b2908153
SHA256

3245fd1b8227b9b542c71d8e1f7c19de8339de9eb02b1329436f8a6b09f1b16c
SHA512

98e03d54b3f2de80cee26d6b3d34d5f1fb21a7130d9ab75957ba87ca34370c1c60fe6364eee7219ed9c7ed272ff8596fca196a5920a66de8aa43fe4581b54d41
SSDEEP

6144:OuZeZi9IXa9Dvc37TNWAYSbJNOOkBqKED0:OuZeZiOXa9DsdYWkBFED0

Score

10^/10

remcos new8 discovery persistence rat

Malware Config

Extracted

Family

remcos

Botnet

New8

11oct2024.con-ip.com:1510

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
registros.dat
keylog_flag
false
keylog_folder
New8
mouse_option
false
mutex
ikmcpqlsahgyxlñpakhdettkjsmzxñpe-QLSNZD
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Capturas de pantalla
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 NtCreateUserProcessOtherParentProcess 1 IoCs

description	pid	Process	procid_target
PID 440 created 3564	440	3245fd1b8227b9b542c71d8e1f7c19de8339de9eb02b1329436f8a6b09f1b16c.exe	56

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Gqxxcnxb = "C:\\Users\\Admin\\AppData\\Roaming\\Gqxxcnxb.exe"	3245fd1b8227b9b542c71d8e1f7c19de8339de9eb02b1329436f8a6b09f1b16c.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 440 set thread context of 4472	440	3245fd1b8227b9b542c71d8e1f7c19de8339de9eb02b1329436f8a6b09f1b16c.exe	86

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	3245fd1b8227b9b542c71d8e1f7c19de8339de9eb02b1329436f8a6b09f1b16c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	InstallUtil.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
440	3245fd1b8227b9b542c71d8e1f7c19de8339de9eb02b1329436f8a6b09f1b16c.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	440	3245fd1b8227b9b542c71d8e1f7c19de8339de9eb02b1329436f8a6b09f1b16c.exe
Token: SeDebugPrivilege	440	3245fd1b8227b9b542c71d8e1f7c19de8339de9eb02b1329436f8a6b09f1b16c.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4472	InstallUtil.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 440 wrote to memory of 4472	440	3245fd1b8227b9b542c71d8e1f7c19de8339de9eb02b1329436f8a6b09f1b16c.exe	86
PID 440 wrote to memory of 4472	440	3245fd1b8227b9b542c71d8e1f7c19de8339de9eb02b1329436f8a6b09f1b16c.exe	86
PID 440 wrote to memory of 4472	440	3245fd1b8227b9b542c71d8e1f7c19de8339de9eb02b1329436f8a6b09f1b16c.exe	86
PID 440 wrote to memory of 4472	440	3245fd1b8227b9b542c71d8e1f7c19de8339de9eb02b1329436f8a6b09f1b16c.exe	86
PID 440 wrote to memory of 4472	440	3245fd1b8227b9b542c71d8e1f7c19de8339de9eb02b1329436f8a6b09f1b16c.exe	86
PID 440 wrote to memory of 4472	440	3245fd1b8227b9b542c71d8e1f7c19de8339de9eb02b1329436f8a6b09f1b16c.exe	86
PID 440 wrote to memory of 4472	440	3245fd1b8227b9b542c71d8e1f7c19de8339de9eb02b1329436f8a6b09f1b16c.exe	86
PID 440 wrote to memory of 4472	440	3245fd1b8227b9b542c71d8e1f7c19de8339de9eb02b1329436f8a6b09f1b16c.exe	86
PID 440 wrote to memory of 4472	440	3245fd1b8227b9b542c71d8e1f7c19de8339de9eb02b1329436f8a6b09f1b16c.exe	86
PID 440 wrote to memory of 4472	440	3245fd1b8227b9b542c71d8e1f7c19de8339de9eb02b1329436f8a6b09f1b16c.exe	86
PID 440 wrote to memory of 4472	440	3245fd1b8227b9b542c71d8e1f7c19de8339de9eb02b1329436f8a6b09f1b16c.exe	86
PID 440 wrote to memory of 4472	440	3245fd1b8227b9b542c71d8e1f7c19de8339de9eb02b1329436f8a6b09f1b16c.exe	86

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3564
- C:\Users\Admin\AppData\Local\Temp\3245fd1b8227b9b542c71d8e1f7c19de8339de9eb02b1329436f8a6b09f1b16c.exe
  "C:\Users\Admin\AppData\Local\Temp\3245fd1b8227b9b542c71d8e1f7c19de8339de9eb02b1329436f8a6b09f1b16c.exe"
  2⤵
  - Suspicious use of NtCreateUserProcessOtherParentProcess
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:440
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:4472

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

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/440-33-0x0000000006120000-0x0000000006238000-memory.dmp

Filesize
1.1MB

Download
memory/440-1086-0x0000000075210000-0x00000000759C0000-memory.dmp

Filesize
7.7MB

Download
memory/440-2-0x0000000075210000-0x00000000759C0000-memory.dmp

Filesize
7.7MB

Download
memory/440-3-0x0000000006120000-0x000000000623E000-memory.dmp

Filesize
1.1MB

Download
memory/440-4-0x0000000006120000-0x0000000006238000-memory.dmp

Filesize
1.1MB

Download
memory/440-15-0x0000000006120000-0x0000000006238000-memory.dmp

Filesize
1.1MB

Download
memory/440-27-0x0000000006120000-0x0000000006238000-memory.dmp

Filesize
1.1MB

Download
memory/440-49-0x0000000006120000-0x0000000006238000-memory.dmp

Filesize
1.1MB

Download
memory/440-67-0x0000000006120000-0x0000000006238000-memory.dmp

Filesize
1.1MB

Download
memory/440-65-0x0000000006120000-0x0000000006238000-memory.dmp

Filesize
1.1MB

Download
memory/440-63-0x0000000006120000-0x0000000006238000-memory.dmp

Filesize
1.1MB

Download
memory/440-61-0x0000000006120000-0x0000000006238000-memory.dmp

Filesize
1.1MB

Download
memory/440-59-0x0000000006120000-0x0000000006238000-memory.dmp

Filesize
1.1MB

Download
memory/440-57-0x0000000006120000-0x0000000006238000-memory.dmp

Filesize
1.1MB

Download
memory/440-37-0x0000000006120000-0x0000000006238000-memory.dmp

Filesize
1.1MB

Download
memory/440-53-0x0000000006120000-0x0000000006238000-memory.dmp

Filesize
1.1MB

Download
memory/440-51-0x0000000006120000-0x0000000006238000-memory.dmp

Filesize
1.1MB

Download
memory/440-47-0x0000000006120000-0x0000000006238000-memory.dmp

Filesize
1.1MB

Download
memory/440-45-0x0000000006120000-0x0000000006238000-memory.dmp

Filesize
1.1MB

Download
memory/440-43-0x0000000006120000-0x0000000006238000-memory.dmp

Filesize
1.1MB

Download
memory/440-41-0x0000000006120000-0x0000000006238000-memory.dmp

Filesize
1.1MB

Download
memory/440-39-0x0000000006120000-0x0000000006238000-memory.dmp

Filesize
1.1MB

Download
memory/440-55-0x0000000006120000-0x0000000006238000-memory.dmp

Filesize
1.1MB

Download
memory/440-1-0x0000000000E50000-0x0000000000EF8000-memory.dmp

Filesize
672KB

Download
memory/440-13-0x0000000006120000-0x0000000006238000-memory.dmp

Filesize
1.1MB

Download
memory/440-31-0x0000000006120000-0x0000000006238000-memory.dmp

Filesize
1.1MB

Download
memory/440-29-0x0000000006120000-0x0000000006238000-memory.dmp

Filesize
1.1MB

Download
memory/440-25-0x0000000006120000-0x0000000006238000-memory.dmp

Filesize
1.1MB

Download
memory/440-23-0x0000000006120000-0x0000000006238000-memory.dmp

Filesize
1.1MB

Download
memory/440-21-0x0000000006120000-0x0000000006238000-memory.dmp

Filesize
1.1MB

Download
memory/440-19-0x0000000006120000-0x0000000006238000-memory.dmp

Filesize
1.1MB

Download
memory/440-17-0x0000000006120000-0x0000000006238000-memory.dmp

Filesize
1.1MB

Download
memory/440-0-0x000000007521E000-0x000000007521F000-memory.dmp

Filesize
4KB

Download
memory/440-11-0x0000000006120000-0x0000000006238000-memory.dmp

Filesize
1.1MB

Download
memory/440-9-0x0000000006120000-0x0000000006238000-memory.dmp

Filesize
1.1MB

Download
memory/440-7-0x0000000006120000-0x0000000006238000-memory.dmp

Filesize
1.1MB

Download
memory/440-5-0x0000000006120000-0x0000000006238000-memory.dmp

Filesize
1.1MB

Download
memory/440-1078-0x0000000075210000-0x00000000759C0000-memory.dmp

Filesize
7.7MB

Download
memory/440-1079-0x00000000064C0000-0x0000000006558000-memory.dmp

Filesize
608KB

Download
memory/440-1080-0x0000000006660000-0x00000000066AC000-memory.dmp

Filesize
304KB

Download
memory/440-1081-0x0000000006D10000-0x00000000072B4000-memory.dmp

Filesize
5.6MB

Download
memory/440-1082-0x0000000006760000-0x00000000067B4000-memory.dmp

Filesize
336KB

Download
memory/440-35-0x0000000006120000-0x0000000006238000-memory.dmp

Filesize
1.1MB

Download
memory/440-1088-0x0000000075210000-0x00000000759C0000-memory.dmp

Filesize
7.7MB

Download
memory/440-1087-0x0000000075210000-0x00000000759C0000-memory.dmp

Filesize
7.7MB

Download
memory/440-1098-0x0000000075210000-0x00000000759C0000-memory.dmp

Filesize
7.7MB

Download
memory/4472-1093-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4472-1101-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download