remcos | 5777515ef44464d49aa0789d35faf78f0d3fd819887b3bc78a554726104f7eb2

Analysis

max time kernel
148s
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
20-11-2024 02:44

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General

Target

5777515ef44464d49aa0789d35faf78f0d3fd819887b3bc78a554726104f7eb2.exe
Size

165KB
MD5

50aadf43e97bff19c1a9e1030cae4c4e
SHA1

949fe67f175d1f8defed2e9194329268b9665cd0
SHA256

5777515ef44464d49aa0789d35faf78f0d3fd819887b3bc78a554726104f7eb2
SHA512

f78a943deb5f54dd55357475e405c998c4e67604774952ccbb75ca826bb251a39dd02d9ec6b7239b9198578815831f8f7daa096e859819f88f093c233d891347
SSDEEP

3072:DGiWBRqDnnKI2VZU7Y6XJs1Nvr5jnM0qTur:DGiWBUrKI20TXo+b

Score

10^/10

remcos remotehost discovery rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

162.251.122.76:7119

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-P2SX34
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
Remcos
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 NtCreateUserProcessOtherParentProcess 1 IoCs

Processes:

5777515ef44464d49aa0789d35faf78f0d3fd819887b3bc78a554726104f7eb2.exe

description pid process target process

PID 3156 created 3504 3156 5777515ef44464d49aa0789d35faf78f0d3fd819887b3bc78a554726104f7eb2.exe Explorer.EXE

description	pid	process	target process
PID 3156 created 3504	3156	5777515ef44464d49aa0789d35faf78f0d3fd819887b3bc78a554726104f7eb2.exe	Explorer.EXE

Drops startup file 1 IoCs

Processes:

5777515ef44464d49aa0789d35faf78f0d3fd819887b3bc78a554726104f7eb2.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Value.vbs	5777515ef44464d49aa0789d35faf78f0d3fd819887b3bc78a554726104f7eb2.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

5777515ef44464d49aa0789d35faf78f0d3fd819887b3bc78a554726104f7eb2.exe

description	pid	process	target process
PID 3156 set thread context of 3544	3156	5777515ef44464d49aa0789d35faf78f0d3fd819887b3bc78a554726104f7eb2.exe	InstallUtil.exe

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

Processes:

5777515ef44464d49aa0789d35faf78f0d3fd819887b3bc78a554726104f7eb2.exeInstallUtil.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5777515ef44464d49aa0789d35faf78f0d3fd819887b3bc78a554726104f7eb2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	InstallUtil.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

5777515ef44464d49aa0789d35faf78f0d3fd819887b3bc78a554726104f7eb2.exe

pid process

3156 5777515ef44464d49aa0789d35faf78f0d3fd819887b3bc78a554726104f7eb2.exe

pid	process
3156	5777515ef44464d49aa0789d35faf78f0d3fd819887b3bc78a554726104f7eb2.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

5777515ef44464d49aa0789d35faf78f0d3fd819887b3bc78a554726104f7eb2.exe

description	pid	process
Token: SeDebugPrivilege	3156	5777515ef44464d49aa0789d35faf78f0d3fd819887b3bc78a554726104f7eb2.exe
Token: SeDebugPrivilege	3156	5777515ef44464d49aa0789d35faf78f0d3fd819887b3bc78a554726104f7eb2.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

5777515ef44464d49aa0789d35faf78f0d3fd819887b3bc78a554726104f7eb2.exe

description	pid	process	target process
PID 3156 wrote to memory of 3544	3156	5777515ef44464d49aa0789d35faf78f0d3fd819887b3bc78a554726104f7eb2.exe	InstallUtil.exe
PID 3156 wrote to memory of 3544	3156	5777515ef44464d49aa0789d35faf78f0d3fd819887b3bc78a554726104f7eb2.exe	InstallUtil.exe
PID 3156 wrote to memory of 3544	3156	5777515ef44464d49aa0789d35faf78f0d3fd819887b3bc78a554726104f7eb2.exe	InstallUtil.exe
PID 3156 wrote to memory of 3544	3156	5777515ef44464d49aa0789d35faf78f0d3fd819887b3bc78a554726104f7eb2.exe	InstallUtil.exe
PID 3156 wrote to memory of 3544	3156	5777515ef44464d49aa0789d35faf78f0d3fd819887b3bc78a554726104f7eb2.exe	InstallUtil.exe
PID 3156 wrote to memory of 3544	3156	5777515ef44464d49aa0789d35faf78f0d3fd819887b3bc78a554726104f7eb2.exe	InstallUtil.exe
PID 3156 wrote to memory of 3544	3156	5777515ef44464d49aa0789d35faf78f0d3fd819887b3bc78a554726104f7eb2.exe	InstallUtil.exe
PID 3156 wrote to memory of 3544	3156	5777515ef44464d49aa0789d35faf78f0d3fd819887b3bc78a554726104f7eb2.exe	InstallUtil.exe
PID 3156 wrote to memory of 3544	3156	5777515ef44464d49aa0789d35faf78f0d3fd819887b3bc78a554726104f7eb2.exe	InstallUtil.exe
PID 3156 wrote to memory of 3544	3156	5777515ef44464d49aa0789d35faf78f0d3fd819887b3bc78a554726104f7eb2.exe	InstallUtil.exe
PID 3156 wrote to memory of 3544	3156	5777515ef44464d49aa0789d35faf78f0d3fd819887b3bc78a554726104f7eb2.exe	InstallUtil.exe
PID 3156 wrote to memory of 3544	3156	5777515ef44464d49aa0789d35faf78f0d3fd819887b3bc78a554726104f7eb2.exe	InstallUtil.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3504
- C:\Users\Admin\AppData\Local\Temp\5777515ef44464d49aa0789d35faf78f0d3fd819887b3bc78a554726104f7eb2.exe
  "C:\Users\Admin\AppData\Local\Temp\5777515ef44464d49aa0789d35faf78f0d3fd819887b3bc78a554726104f7eb2.exe"
  2⤵
  - Suspicious use of NtCreateUserProcessOtherParentProcess
  - Drops startup file
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3156
- 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
  PID:3544

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/3156-0-0x00000000745EE000-0x00000000745EF000-memory.dmp

Filesize
4KB

Download
memory/3156-1-0x0000000000DA0000-0x0000000000DD0000-memory.dmp

Filesize
192KB

Download
memory/3156-2-0x00000000745E0000-0x0000000074D90000-memory.dmp

Filesize
7.7MB

Download
memory/3156-3-0x0000000006F30000-0x0000000007054000-memory.dmp

Filesize
1.1MB

Download
memory/3156-4-0x0000000007630000-0x0000000007BD4000-memory.dmp

Filesize
5.6MB

Download
memory/3156-5-0x0000000007180000-0x0000000007212000-memory.dmp

Filesize
584KB

Download
memory/3156-11-0x0000000006F30000-0x000000000704E000-memory.dmp

Filesize
1.1MB

Download
memory/3156-9-0x0000000006F30000-0x000000000704E000-memory.dmp

Filesize
1.1MB

Download
memory/3156-7-0x0000000006F30000-0x000000000704E000-memory.dmp

Filesize
1.1MB

Download
memory/3156-6-0x0000000006F30000-0x000000000704E000-memory.dmp

Filesize
1.1MB

Download
memory/3156-30-0x0000000006F30000-0x000000000704E000-memory.dmp

Filesize
1.1MB

Download
memory/3156-31-0x0000000006F30000-0x000000000704E000-memory.dmp

Filesize
1.1MB

Download
memory/3156-27-0x0000000006F30000-0x000000000704E000-memory.dmp

Filesize
1.1MB

Download
memory/3156-25-0x0000000006F30000-0x000000000704E000-memory.dmp

Filesize
1.1MB

Download
memory/3156-23-0x0000000006F30000-0x000000000704E000-memory.dmp

Filesize
1.1MB

Download
memory/3156-21-0x0000000006F30000-0x000000000704E000-memory.dmp

Filesize
1.1MB

Download
memory/3156-19-0x0000000006F30000-0x000000000704E000-memory.dmp

Filesize
1.1MB

Download
memory/3156-17-0x0000000006F30000-0x000000000704E000-memory.dmp

Filesize
1.1MB

Download
memory/3156-15-0x0000000006F30000-0x000000000704E000-memory.dmp

Filesize
1.1MB

Download
memory/3156-13-0x0000000006F30000-0x000000000704E000-memory.dmp

Filesize
1.1MB

Download
memory/3156-41-0x0000000006F30000-0x000000000704E000-memory.dmp

Filesize
1.1MB

Download
memory/3156-49-0x0000000006F30000-0x000000000704E000-memory.dmp

Filesize
1.1MB

Download
memory/3156-67-0x0000000006F30000-0x000000000704E000-memory.dmp

Filesize
1.1MB

Download
memory/3156-69-0x0000000006F30000-0x000000000704E000-memory.dmp

Filesize
1.1MB

Download
memory/3156-65-0x0000000006F30000-0x000000000704E000-memory.dmp

Filesize
1.1MB

Download
memory/3156-63-0x0000000006F30000-0x000000000704E000-memory.dmp

Filesize
1.1MB

Download
memory/3156-61-0x0000000006F30000-0x000000000704E000-memory.dmp

Filesize
1.1MB

Download
memory/3156-57-0x0000000006F30000-0x000000000704E000-memory.dmp

Filesize
1.1MB

Download
memory/3156-55-0x0000000006F30000-0x000000000704E000-memory.dmp

Filesize
1.1MB

Download
memory/3156-53-0x0000000006F30000-0x000000000704E000-memory.dmp

Filesize
1.1MB

Download
memory/3156-51-0x0000000006F30000-0x000000000704E000-memory.dmp

Filesize
1.1MB

Download
memory/3156-47-0x0000000006F30000-0x000000000704E000-memory.dmp

Filesize
1.1MB

Download
memory/3156-45-0x0000000006F30000-0x000000000704E000-memory.dmp

Filesize
1.1MB

Download
memory/3156-43-0x0000000006F30000-0x000000000704E000-memory.dmp

Filesize
1.1MB

Download
memory/3156-39-0x0000000006F30000-0x000000000704E000-memory.dmp

Filesize
1.1MB

Download
memory/3156-37-0x0000000006F30000-0x000000000704E000-memory.dmp

Filesize
1.1MB

Download
memory/3156-35-0x0000000006F30000-0x000000000704E000-memory.dmp

Filesize
1.1MB

Download
memory/3156-59-0x0000000006F30000-0x000000000704E000-memory.dmp

Filesize
1.1MB

Download
memory/3156-33-0x0000000006F30000-0x000000000704E000-memory.dmp

Filesize
1.1MB

Download
memory/3156-681-0x00000000745EE000-0x00000000745EF000-memory.dmp

Filesize
4KB

Download
memory/3156-1081-0x00000000745E0000-0x0000000074D90000-memory.dmp

Filesize
7.7MB

Download
memory/3156-1082-0x00000000745E0000-0x0000000074D90000-memory.dmp

Filesize
7.7MB

Download
memory/3156-1083-0x0000000007390000-0x0000000007426000-memory.dmp

Filesize
600KB

Download
memory/3156-1084-0x0000000007130000-0x000000000717C000-memory.dmp

Filesize
304KB

Download
memory/3156-1088-0x00000000745E0000-0x0000000074D90000-memory.dmp

Filesize
7.7MB

Download
memory/3156-1090-0x00000000745E0000-0x0000000074D90000-memory.dmp

Filesize
7.7MB

Download
memory/3156-1089-0x00000000745E0000-0x0000000074D90000-memory.dmp

Filesize
7.7MB

Download
memory/3156-1091-0x00000000745E0000-0x0000000074D90000-memory.dmp

Filesize
7.7MB

Download
memory/3156-1092-0x00000000068D0000-0x0000000006924000-memory.dmp

Filesize
336KB

Download
memory/3156-1101-0x00000000745E0000-0x0000000074D90000-memory.dmp

Filesize
7.7MB

Download
memory/3544-1100-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3544-1107-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download