remcos | ee4a689891705260239affa76e606afe4bb0e3100770f0f57a27b6367b0bbb40

Analysis

max time kernel
149s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
10-09-2024 02:21

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General

Target

ee4a689891705260239affa76e606afe4bb0e3100770f0f57a27b6367b0bbb40.exe
Size

926KB
MD5

5d8e15f3fdbd7a70346b8094dda2eb58
SHA1

a5f71868526c7cecfef7ee34ad095b7ae7e381ab
SHA256

ee4a689891705260239affa76e606afe4bb0e3100770f0f57a27b6367b0bbb40
SHA512

fc97903e551219f63af9c874ecad2a4af6ec8855fb54cbbb5b0926d9a80ca9599d7e51e4d0580cb071397135f0b8b9e005e724c00106a16c3e2ef67d8074b433
SSDEEP

24576:hjj0ytqrALi4J+O/kzhS3tZcD+u2woeKEl:xwytqrci44O/kVizg+ub9l

Score

10^/10

remcos 3456789 discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

3456789

172.93.220.148:45682

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
765-8M14I5
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

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
5112	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-1-5-21-355097885-2402257403-2971294179-1000\Control Panel\International\Geo\Nation	ee4a689891705260239affa76e606afe4bb0e3100770f0f57a27b6367b0bbb40.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3996 set thread context of 1412	3996	ee4a689891705260239affa76e606afe4bb0e3100770f0f57a27b6367b0bbb40.exe	90

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 4 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	ee4a689891705260239affa76e606afe4bb0e3100770f0f57a27b6367b0bbb40.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ee4a689891705260239affa76e606afe4bb0e3100770f0f57a27b6367b0bbb40.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
1684	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
5112	powershell.exe
5112	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5112	powershell.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 3996 wrote to memory of 5112	3996	ee4a689891705260239affa76e606afe4bb0e3100770f0f57a27b6367b0bbb40.exe	86
PID 3996 wrote to memory of 5112	3996	ee4a689891705260239affa76e606afe4bb0e3100770f0f57a27b6367b0bbb40.exe	86
PID 3996 wrote to memory of 5112	3996	ee4a689891705260239affa76e606afe4bb0e3100770f0f57a27b6367b0bbb40.exe	86
PID 3996 wrote to memory of 1684	3996	ee4a689891705260239affa76e606afe4bb0e3100770f0f57a27b6367b0bbb40.exe	88
PID 3996 wrote to memory of 1684	3996	ee4a689891705260239affa76e606afe4bb0e3100770f0f57a27b6367b0bbb40.exe	88
PID 3996 wrote to memory of 1684	3996	ee4a689891705260239affa76e606afe4bb0e3100770f0f57a27b6367b0bbb40.exe	88
PID 3996 wrote to memory of 1412	3996	ee4a689891705260239affa76e606afe4bb0e3100770f0f57a27b6367b0bbb40.exe	90
PID 3996 wrote to memory of 1412	3996	ee4a689891705260239affa76e606afe4bb0e3100770f0f57a27b6367b0bbb40.exe	90
PID 3996 wrote to memory of 1412	3996	ee4a689891705260239affa76e606afe4bb0e3100770f0f57a27b6367b0bbb40.exe	90
PID 3996 wrote to memory of 1412	3996	ee4a689891705260239affa76e606afe4bb0e3100770f0f57a27b6367b0bbb40.exe	90
PID 3996 wrote to memory of 1412	3996	ee4a689891705260239affa76e606afe4bb0e3100770f0f57a27b6367b0bbb40.exe	90
PID 3996 wrote to memory of 1412	3996	ee4a689891705260239affa76e606afe4bb0e3100770f0f57a27b6367b0bbb40.exe	90
PID 3996 wrote to memory of 1412	3996	ee4a689891705260239affa76e606afe4bb0e3100770f0f57a27b6367b0bbb40.exe	90
PID 3996 wrote to memory of 1412	3996	ee4a689891705260239affa76e606afe4bb0e3100770f0f57a27b6367b0bbb40.exe	90
PID 3996 wrote to memory of 1412	3996	ee4a689891705260239affa76e606afe4bb0e3100770f0f57a27b6367b0bbb40.exe	90
PID 3996 wrote to memory of 1412	3996	ee4a689891705260239affa76e606afe4bb0e3100770f0f57a27b6367b0bbb40.exe	90
PID 3996 wrote to memory of 1412	3996	ee4a689891705260239affa76e606afe4bb0e3100770f0f57a27b6367b0bbb40.exe	90
PID 3996 wrote to memory of 1412	3996	ee4a689891705260239affa76e606afe4bb0e3100770f0f57a27b6367b0bbb40.exe	90

C:\Users\Admin\AppData\Local\Temp\ee4a689891705260239affa76e606afe4bb0e3100770f0f57a27b6367b0bbb40.exe
"C:\Users\Admin\AppData\Local\Temp\ee4a689891705260239affa76e606afe4bb0e3100770f0f57a27b6367b0bbb40.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3996
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\snlrFEGONNdR.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:5112
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\snlrFEGONNdR" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBE4F.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1684
- C:\Users\Admin\AppData\Local\Temp\ee4a689891705260239affa76e606afe4bb0e3100770f0f57a27b6367b0bbb40.exe
  "C:\Users\Admin\AppData\Local\Temp\ee4a689891705260239affa76e606afe4bb0e3100770f0f57a27b6367b0bbb40.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1412

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_3hv2ym25.suc.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpBE4F.tmp

Filesize
1KB

MD5
716e9d0e532679a116d64e61f01509a8

SHA1
7c9b5d0486cfaef808d3f2748fff25ef7ac8c540

SHA256
bf374114d3b334bc38638f0efc1994de594f17a6a6f35ff62c27bba7eadecb20

SHA512
e8678edea40dfca34e58629a56e8f1102ad883afdffa3ac0af225b762a4de82b5d65363618a5e2768dfee455c472c47c32ca580e643525c5bb57e8bff65d7b2a

Download Submit
memory/1412-28-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1412-81-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1412-26-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1412-43-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1412-45-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1412-73-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1412-74-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1412-75-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1412-76-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1412-77-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1412-23-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1412-78-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1412-79-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1412-24-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1412-27-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1412-44-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1412-80-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3996-10-0x00000000064C0000-0x000000000657E000-memory.dmp

Filesize
760KB

Download
memory/3996-40-0x00000000750E0000-0x0000000075890000-memory.dmp

Filesize
7.7MB

Download
memory/3996-6-0x00000000053A0000-0x000000000543C000-memory.dmp

Filesize
624KB

Download
memory/3996-4-0x00000000750E0000-0x0000000075890000-memory.dmp

Filesize
7.7MB

Download
memory/3996-2-0x0000000005620000-0x0000000005BC4000-memory.dmp

Filesize
5.6MB

Download
memory/3996-3-0x0000000005070000-0x0000000005102000-memory.dmp

Filesize
584KB

Download
memory/3996-9-0x00000000750E0000-0x0000000075890000-memory.dmp

Filesize
7.7MB

Download
memory/3996-8-0x00000000750EE000-0x00000000750EF000-memory.dmp

Filesize
4KB

Download
memory/3996-7-0x0000000005380000-0x0000000005398000-memory.dmp

Filesize
96KB

Download
memory/3996-0-0x00000000750EE000-0x00000000750EF000-memory.dmp

Filesize
4KB

Download
memory/3996-1-0x0000000000570000-0x000000000065E000-memory.dmp

Filesize
952KB

Download
memory/3996-5-0x0000000005040000-0x000000000504A000-memory.dmp

Filesize
40KB

Download
memory/5112-41-0x0000000006390000-0x00000000063AE000-memory.dmp

Filesize
120KB

Download
memory/5112-42-0x00000000066C0000-0x000000000670C000-memory.dmp

Filesize
304KB

Download
memory/5112-48-0x0000000006960000-0x0000000006992000-memory.dmp

Filesize
200KB

Download
memory/5112-49-0x0000000075970000-0x00000000759BC000-memory.dmp

Filesize
304KB

Download
memory/5112-59-0x0000000006940000-0x000000000695E000-memory.dmp

Filesize
120KB

Download
memory/5112-60-0x0000000007570000-0x0000000007613000-memory.dmp

Filesize
652KB

Download
memory/5112-61-0x0000000007D00000-0x000000000837A000-memory.dmp

Filesize
6.5MB

Download
memory/5112-62-0x00000000076B0000-0x00000000076CA000-memory.dmp

Filesize
104KB

Download
memory/5112-63-0x0000000007720000-0x000000000772A000-memory.dmp

Filesize
40KB

Download
memory/5112-64-0x0000000007930000-0x00000000079C6000-memory.dmp

Filesize
600KB

Download
memory/5112-65-0x00000000078B0000-0x00000000078C1000-memory.dmp

Filesize
68KB

Download
memory/5112-66-0x00000000078E0000-0x00000000078EE000-memory.dmp

Filesize
56KB

Download
memory/5112-67-0x00000000078F0000-0x0000000007904000-memory.dmp

Filesize
80KB

Download
memory/5112-68-0x00000000079F0000-0x0000000007A0A000-memory.dmp

Filesize
104KB

Download
memory/5112-69-0x00000000079D0000-0x00000000079D8000-memory.dmp

Filesize
32KB

Download
memory/5112-72-0x00000000750E0000-0x0000000075890000-memory.dmp

Filesize
7.7MB

Download
memory/5112-19-0x00000000750E0000-0x0000000075890000-memory.dmp

Filesize
7.7MB

Download
memory/5112-20-0x00000000053D0000-0x00000000053F2000-memory.dmp

Filesize
136KB

Download
memory/5112-21-0x0000000005480000-0x00000000054E6000-memory.dmp

Filesize
408KB

Download
memory/5112-22-0x00000000054F0000-0x0000000005556000-memory.dmp

Filesize
408KB

Download
memory/5112-34-0x00000000750E0000-0x0000000075890000-memory.dmp

Filesize
7.7MB

Download
memory/5112-36-0x0000000005C60000-0x0000000005FB4000-memory.dmp

Filesize
3.3MB

Download
memory/5112-18-0x0000000005580000-0x0000000005BA8000-memory.dmp

Filesize
6.2MB

Download
memory/5112-17-0x00000000750E0000-0x0000000075890000-memory.dmp

Filesize
7.7MB

Download
memory/5112-15-0x0000000002A70000-0x0000000002AA6000-memory.dmp

Filesize
216KB

Download