remcos | e6142fe26f2b69d6a0c29383eda5ba3ea883d706aa86f406a79668a346907d34

Analysis

max time kernel
178s
max time network
179s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
02-10-2024 14:55

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General

Target

ee1e59674071a1c4541fbaf6f6f582cc.exe
Size

379KB
MD5

ee1e59674071a1c4541fbaf6f6f582cc
SHA1

f1b3689389c286197e297a903942d20d3527d2c0
SHA256

e6142fe26f2b69d6a0c29383eda5ba3ea883d706aa86f406a79668a346907d34
SHA512

dd3d6dc531b453da6b583da7e0ec40b2f25ebe541ae0a0189d07be4a95491e1d6174c3b2cc9cf97d7fa773991b1fc4b4335e1cc9fa305c6c253fd451474e7e5e
SSDEEP

384:zYfZf7DceK5eDKe5Teuek41UQFn0FWkorqVsiEsbTGETNkrMX4mT6h8CfsqbPpwW:+ZaiKFnQoWTxglb83Yi3iPmbLDC

Score

10^/10

remcos nuevo5 discovery persistence rat

Malware Config

Extracted

Family

remcos

Botnet

nuevo5

1octubre2024.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
nuevo5
mouse_option
false
mutex
oplkueyojnasuirowqyimcnnvjhfs-QWYDDX
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 5052 created 3420	5052	ee1e59674071a1c4541fbaf6f6f582cc.exe	55

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-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Bmfrope = "C:\\Users\\Admin\\AppData\\Roaming\\Bmfrope.exe"	ee1e59674071a1c4541fbaf6f6f582cc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5052 set thread context of 4708	5052	ee1e59674071a1c4541fbaf6f6f582cc.exe	88

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	ee1e59674071a1c4541fbaf6f6f582cc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	InstallUtil.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
5052	ee1e59674071a1c4541fbaf6f6f582cc.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	5052	ee1e59674071a1c4541fbaf6f6f582cc.exe
Token: SeDebugPrivilege	5052	ee1e59674071a1c4541fbaf6f6f582cc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4708	InstallUtil.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 5052 wrote to memory of 4708	5052	ee1e59674071a1c4541fbaf6f6f582cc.exe	88
PID 5052 wrote to memory of 4708	5052	ee1e59674071a1c4541fbaf6f6f582cc.exe	88
PID 5052 wrote to memory of 4708	5052	ee1e59674071a1c4541fbaf6f6f582cc.exe	88
PID 5052 wrote to memory of 4708	5052	ee1e59674071a1c4541fbaf6f6f582cc.exe	88
PID 5052 wrote to memory of 4708	5052	ee1e59674071a1c4541fbaf6f6f582cc.exe	88
PID 5052 wrote to memory of 4708	5052	ee1e59674071a1c4541fbaf6f6f582cc.exe	88
PID 5052 wrote to memory of 4708	5052	ee1e59674071a1c4541fbaf6f6f582cc.exe	88
PID 5052 wrote to memory of 4708	5052	ee1e59674071a1c4541fbaf6f6f582cc.exe	88
PID 5052 wrote to memory of 4708	5052	ee1e59674071a1c4541fbaf6f6f582cc.exe	88
PID 5052 wrote to memory of 4708	5052	ee1e59674071a1c4541fbaf6f6f582cc.exe	88
PID 5052 wrote to memory of 4708	5052	ee1e59674071a1c4541fbaf6f6f582cc.exe	88
PID 5052 wrote to memory of 4708	5052	ee1e59674071a1c4541fbaf6f6f582cc.exe	88

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3420
- C:\Users\Admin\AppData\Local\Temp\ee1e59674071a1c4541fbaf6f6f582cc.exe
  "C:\Users\Admin\AppData\Local\Temp\ee1e59674071a1c4541fbaf6f6f582cc.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:5052
- 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:4708

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/4708-1098-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4708-1108-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5052-0-0x000000007529E000-0x000000007529F000-memory.dmp

Filesize
4KB

Download
memory/5052-1-0x00000000007D0000-0x0000000000832000-memory.dmp

Filesize
392KB

Download
memory/5052-2-0x0000000075290000-0x0000000075A40000-memory.dmp

Filesize
7.7MB

Download
memory/5052-3-0x0000000005B70000-0x0000000005C8E000-memory.dmp

Filesize
1.1MB

Download
memory/5052-4-0x0000000005B70000-0x0000000005C88000-memory.dmp

Filesize
1.1MB

Download
memory/5052-21-0x0000000005B70000-0x0000000005C88000-memory.dmp

Filesize
1.1MB

Download
memory/5052-43-0x0000000005B70000-0x0000000005C88000-memory.dmp

Filesize
1.1MB

Download
memory/5052-67-0x0000000005B70000-0x0000000005C88000-memory.dmp

Filesize
1.1MB

Download
memory/5052-65-0x0000000005B70000-0x0000000005C88000-memory.dmp

Filesize
1.1MB

Download
memory/5052-63-0x0000000005B70000-0x0000000005C88000-memory.dmp

Filesize
1.1MB

Download
memory/5052-61-0x0000000005B70000-0x0000000005C88000-memory.dmp

Filesize
1.1MB

Download
memory/5052-59-0x0000000005B70000-0x0000000005C88000-memory.dmp

Filesize
1.1MB

Download
memory/5052-57-0x0000000005B70000-0x0000000005C88000-memory.dmp

Filesize
1.1MB

Download
memory/5052-56-0x0000000005B70000-0x0000000005C88000-memory.dmp

Filesize
1.1MB

Download
memory/5052-53-0x0000000005B70000-0x0000000005C88000-memory.dmp

Filesize
1.1MB

Download
memory/5052-51-0x0000000005B70000-0x0000000005C88000-memory.dmp

Filesize
1.1MB

Download
memory/5052-49-0x0000000005B70000-0x0000000005C88000-memory.dmp

Filesize
1.1MB

Download
memory/5052-47-0x0000000005B70000-0x0000000005C88000-memory.dmp

Filesize
1.1MB

Download
memory/5052-45-0x0000000005B70000-0x0000000005C88000-memory.dmp

Filesize
1.1MB

Download
memory/5052-41-0x0000000005B70000-0x0000000005C88000-memory.dmp

Filesize
1.1MB

Download
memory/5052-39-0x0000000005B70000-0x0000000005C88000-memory.dmp

Filesize
1.1MB

Download
memory/5052-37-0x0000000005B70000-0x0000000005C88000-memory.dmp

Filesize
1.1MB

Download
memory/5052-35-0x0000000005B70000-0x0000000005C88000-memory.dmp

Filesize
1.1MB

Download
memory/5052-31-0x0000000005B70000-0x0000000005C88000-memory.dmp

Filesize
1.1MB

Download
memory/5052-29-0x0000000005B70000-0x0000000005C88000-memory.dmp

Filesize
1.1MB

Download
memory/5052-27-0x0000000005B70000-0x0000000005C88000-memory.dmp

Filesize
1.1MB

Download
memory/5052-25-0x0000000005B70000-0x0000000005C88000-memory.dmp

Filesize
1.1MB

Download
memory/5052-23-0x0000000005B70000-0x0000000005C88000-memory.dmp

Filesize
1.1MB

Download
memory/5052-19-0x0000000005B70000-0x0000000005C88000-memory.dmp

Filesize
1.1MB

Download
memory/5052-17-0x0000000005B70000-0x0000000005C88000-memory.dmp

Filesize
1.1MB

Download
memory/5052-15-0x0000000005B70000-0x0000000005C88000-memory.dmp

Filesize
1.1MB

Download
memory/5052-13-0x0000000005B70000-0x0000000005C88000-memory.dmp

Filesize
1.1MB

Download
memory/5052-12-0x0000000005B70000-0x0000000005C88000-memory.dmp

Filesize
1.1MB

Download
memory/5052-9-0x0000000005B70000-0x0000000005C88000-memory.dmp

Filesize
1.1MB

Download
memory/5052-7-0x0000000005B70000-0x0000000005C88000-memory.dmp

Filesize
1.1MB

Download
memory/5052-5-0x0000000005B70000-0x0000000005C88000-memory.dmp

Filesize
1.1MB

Download
memory/5052-33-0x0000000005B70000-0x0000000005C88000-memory.dmp

Filesize
1.1MB

Download
memory/5052-1078-0x0000000075290000-0x0000000075A40000-memory.dmp

Filesize
7.7MB

Download
memory/5052-1079-0x0000000005EE0000-0x0000000005F78000-memory.dmp

Filesize
608KB

Download
memory/5052-1080-0x0000000005F80000-0x0000000005FCC000-memory.dmp

Filesize
304KB

Download
memory/5052-1084-0x0000000075290000-0x0000000075A40000-memory.dmp

Filesize
7.7MB

Download
memory/5052-1085-0x0000000075290000-0x0000000075A40000-memory.dmp

Filesize
7.7MB

Download
memory/5052-1086-0x0000000075290000-0x0000000075A40000-memory.dmp

Filesize
7.7MB

Download
memory/5052-1087-0x000000007529E000-0x000000007529F000-memory.dmp

Filesize
4KB

Download
memory/5052-1088-0x0000000075290000-0x0000000075A40000-memory.dmp

Filesize
7.7MB

Download
memory/5052-1089-0x0000000006840000-0x0000000006DE4000-memory.dmp

Filesize
5.6MB

Download
memory/5052-1090-0x0000000006290000-0x00000000062E4000-memory.dmp

Filesize
336KB

Download
memory/5052-1100-0x0000000075290000-0x0000000075A40000-memory.dmp

Filesize
7.7MB

Download