remcos | 36ed24fd100db4ab36461303fcadf2101c391f95e635fb33f0fa396204e642ab

Analysis

max time kernel
149s
max time network
105s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
23/10/2024, 07:26

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

c28afe52e15d615ba4564d0223dba716.exe
Size

948KB
MD5

c28afe52e15d615ba4564d0223dba716
SHA1

d92a8a3d96e130eda394f74583dd67941de22c04
SHA256

36ed24fd100db4ab36461303fcadf2101c391f95e635fb33f0fa396204e642ab
SHA512

63b17395d174d1959ec7d52e5b87b736890be4d77669311e8e734a4feb9d01e025228b4def13841a11f295809f28101c2ac402ebdc5ca4bfbc4ab1bd900ca428
SSDEEP

24576:58kh5oDiJiFYu7nK4o7bpcF6b0xV5+rVfWnKG:5v5oDigFzVofpcF6b0xehkKG

Score

10^/10

remcos m33rmco discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

m33rmco

m3n0nsuit3.sytes.net:1974

Attributes

audio_folder
MicRecords
audio_path
ApplicationPath
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-878CXZ
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

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2948	powershell.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	c28afe52e15d615ba4564d0223dba716.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3100 set thread context of 1496	3100	c28afe52e15d615ba4564d0223dba716.exe	100

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 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	c28afe52e15d615ba4564d0223dba716.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c28afe52e15d615ba4564d0223dba716.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3100	c28afe52e15d615ba4564d0223dba716.exe
3100	c28afe52e15d615ba4564d0223dba716.exe
2948	powershell.exe
2948	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3100	c28afe52e15d615ba4564d0223dba716.exe
Token: SeDebugPrivilege	2948	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1496	c28afe52e15d615ba4564d0223dba716.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 3100 wrote to memory of 2948	3100	c28afe52e15d615ba4564d0223dba716.exe	97
PID 3100 wrote to memory of 2948	3100	c28afe52e15d615ba4564d0223dba716.exe	97
PID 3100 wrote to memory of 2948	3100	c28afe52e15d615ba4564d0223dba716.exe	97
PID 3100 wrote to memory of 3476	3100	c28afe52e15d615ba4564d0223dba716.exe	99
PID 3100 wrote to memory of 3476	3100	c28afe52e15d615ba4564d0223dba716.exe	99
PID 3100 wrote to memory of 3476	3100	c28afe52e15d615ba4564d0223dba716.exe	99
PID 3100 wrote to memory of 1496	3100	c28afe52e15d615ba4564d0223dba716.exe	100
PID 3100 wrote to memory of 1496	3100	c28afe52e15d615ba4564d0223dba716.exe	100
PID 3100 wrote to memory of 1496	3100	c28afe52e15d615ba4564d0223dba716.exe	100
PID 3100 wrote to memory of 1496	3100	c28afe52e15d615ba4564d0223dba716.exe	100
PID 3100 wrote to memory of 1496	3100	c28afe52e15d615ba4564d0223dba716.exe	100
PID 3100 wrote to memory of 1496	3100	c28afe52e15d615ba4564d0223dba716.exe	100
PID 3100 wrote to memory of 1496	3100	c28afe52e15d615ba4564d0223dba716.exe	100
PID 3100 wrote to memory of 1496	3100	c28afe52e15d615ba4564d0223dba716.exe	100
PID 3100 wrote to memory of 1496	3100	c28afe52e15d615ba4564d0223dba716.exe	100
PID 3100 wrote to memory of 1496	3100	c28afe52e15d615ba4564d0223dba716.exe	100
PID 3100 wrote to memory of 1496	3100	c28afe52e15d615ba4564d0223dba716.exe	100
PID 3100 wrote to memory of 1496	3100	c28afe52e15d615ba4564d0223dba716.exe	100

C:\Users\Admin\AppData\Local\Temp\c28afe52e15d615ba4564d0223dba716.exe
"C:\Users\Admin\AppData\Local\Temp\c28afe52e15d615ba4564d0223dba716.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3100
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\c28afe52e15d615ba4564d0223dba716.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2948
- C:\Users\Admin\AppData\Local\Temp\c28afe52e15d615ba4564d0223dba716.exe
  "C:\Users\Admin\AppData\Local\Temp\c28afe52e15d615ba4564d0223dba716.exe"
  2⤵
  PID:3476
- C:\Users\Admin\AppData\Local\Temp\c28afe52e15d615ba4564d0223dba716.exe
  "C:\Users\Admin\AppData\Local\Temp\c28afe52e15d615ba4564d0223dba716.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:1496

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
0f570d8205b9c0da957d997ed11ead46

SHA1
18ac1550db3f63ab25ef8224162359e90c509157

SHA256
9410f97e6abb35ff0d7ad224de3860a4d35ded410d41f7e1a39876d0157cb42d

SHA512
66bee3d38971aee29b6c017ee7baa74df6f1f8486ec19b4eef06150abf12b842eabb720295b1e398e0c16801f0b94430c30f6680c2c13f132e1a51f86f3736ff

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_zu2ijx2c.kp2.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1496-12-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1496-69-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1496-16-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1496-17-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1496-21-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1496-11-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1496-13-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2948-28-0x0000000005FE0000-0x0000000006046000-memory.dmp

Filesize
408KB

Download
memory/2948-39-0x0000000006660000-0x000000000667E000-memory.dmp

Filesize
120KB

Download
memory/2948-67-0x0000000075210000-0x00000000759C0000-memory.dmp

Filesize
7.7MB

Download
memory/2948-64-0x0000000007CA0000-0x0000000007CA8000-memory.dmp

Filesize
32KB

Download
memory/2948-63-0x0000000007CC0000-0x0000000007CDA000-memory.dmp

Filesize
104KB

Download
memory/2948-62-0x0000000007BC0000-0x0000000007BD4000-memory.dmp

Filesize
80KB

Download
memory/2948-20-0x000000007521E000-0x000000007521F000-memory.dmp

Filesize
4KB

Download
memory/2948-61-0x0000000007BB0000-0x0000000007BBE000-memory.dmp

Filesize
56KB

Download
memory/2948-60-0x0000000007B80000-0x0000000007B91000-memory.dmp

Filesize
68KB

Download
memory/2948-23-0x0000000075210000-0x00000000759C0000-memory.dmp

Filesize
7.7MB

Download
memory/2948-22-0x0000000005830000-0x0000000005E58000-memory.dmp

Filesize
6.2MB

Download
memory/2948-59-0x0000000007C00000-0x0000000007C96000-memory.dmp

Filesize
600KB

Download
memory/2948-15-0x00000000050B0000-0x00000000050E6000-memory.dmp

Filesize
216KB

Download
memory/2948-25-0x0000000075210000-0x00000000759C0000-memory.dmp

Filesize
7.7MB

Download
memory/2948-26-0x0000000005ED0000-0x0000000005EF2000-memory.dmp

Filesize
136KB

Download
memory/2948-58-0x00000000079F0000-0x00000000079FA000-memory.dmp

Filesize
40KB

Download
memory/2948-27-0x0000000005F70000-0x0000000005FD6000-memory.dmp

Filesize
408KB

Download
memory/2948-57-0x0000000007980000-0x000000000799A000-memory.dmp

Filesize
104KB

Download
memory/2948-29-0x0000000006050000-0x00000000063A4000-memory.dmp

Filesize
3.3MB

Download
memory/2948-56-0x0000000007FD0000-0x000000000864A000-memory.dmp

Filesize
6.5MB

Download
memory/2948-40-0x00000000066F0000-0x000000000673C000-memory.dmp

Filesize
304KB

Download
memory/2948-41-0x0000000006C30000-0x0000000006C62000-memory.dmp

Filesize
200KB

Download
memory/2948-42-0x0000000071A00000-0x0000000071A4C000-memory.dmp

Filesize
304KB

Download
memory/2948-52-0x0000000075210000-0x00000000759C0000-memory.dmp

Filesize
7.7MB

Download
memory/2948-54-0x0000000006C10000-0x0000000006C2E000-memory.dmp

Filesize
120KB

Download
memory/2948-53-0x0000000075210000-0x00000000759C0000-memory.dmp

Filesize
7.7MB

Download
memory/2948-55-0x0000000007630000-0x00000000076D3000-memory.dmp

Filesize
652KB

Download
memory/3100-10-0x0000000008730000-0x00000000087F0000-memory.dmp

Filesize
768KB

Download
memory/3100-3-0x0000000004C50000-0x0000000004CE2000-memory.dmp

Filesize
584KB

Download
memory/3100-0-0x000000007521E000-0x000000007521F000-memory.dmp

Filesize
4KB

Download
memory/3100-4-0x0000000004D10000-0x0000000004D1A000-memory.dmp

Filesize
40KB

Download
memory/3100-24-0x0000000075210000-0x00000000759C0000-memory.dmp

Filesize
7.7MB

Download
memory/3100-5-0x0000000004F10000-0x0000000004FAC000-memory.dmp

Filesize
624KB

Download
memory/3100-6-0x0000000075210000-0x00000000759C0000-memory.dmp

Filesize
7.7MB

Download
memory/3100-7-0x0000000004FB0000-0x0000000004FCC000-memory.dmp

Filesize
112KB

Download
memory/3100-8-0x000000007521E000-0x000000007521F000-memory.dmp

Filesize
4KB

Download
memory/3100-9-0x0000000075210000-0x00000000759C0000-memory.dmp

Filesize
7.7MB

Download
memory/3100-2-0x00000000052E0000-0x0000000005884000-memory.dmp

Filesize
5.6MB

Download
memory/3100-1-0x0000000000180000-0x0000000000274000-memory.dmp

Filesize
976KB

Download