remcos | 5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
09-09-2024 12:41

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe
Size

913KB
MD5

5a1a4200ce20d69530ca2b5ea575ef4a
SHA1

00e5d156420606a6ee6da8b37f11f5a561376146
SHA256

5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd
SHA512

7f46f8ab217230a031cfdd377833dfd416d2a64be9ebfd289faba9bbabb77347697d3404faaa72e01e262f6d25277a87ca18f64fe2e7240aa883684f150d82db
SSDEEP

24576:rRAaN6zclYJQqEllY8ZE0TdGuHSbSnsUQKnBgfzoP:rRXscmJXV0tsInB4

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

192.3.243.155:7643

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-C9YEJ8
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 2 IoCs

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

execution

PowerShell

T1059.001

pid	Process
5016	powershell.exe
4276	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	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3008 set thread context of 1808	3008	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	93

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 5 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	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.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	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.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
5024	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
4276	powershell.exe
5016	powershell.exe
3008	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe
3008	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe
5016	powershell.exe
4276	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4276	powershell.exe
Token: SeDebugPrivilege	5016	powershell.exe
Token: SeDebugPrivilege	3008	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1808	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 3008 wrote to memory of 4276	3008	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	86
PID 3008 wrote to memory of 4276	3008	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	86
PID 3008 wrote to memory of 4276	3008	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	86
PID 3008 wrote to memory of 5016	3008	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	88
PID 3008 wrote to memory of 5016	3008	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	88
PID 3008 wrote to memory of 5016	3008	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	88
PID 3008 wrote to memory of 5024	3008	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	90
PID 3008 wrote to memory of 5024	3008	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	90
PID 3008 wrote to memory of 5024	3008	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	90
PID 3008 wrote to memory of 4780	3008	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	92
PID 3008 wrote to memory of 4780	3008	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	92
PID 3008 wrote to memory of 4780	3008	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	92
PID 3008 wrote to memory of 1808	3008	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	93
PID 3008 wrote to memory of 1808	3008	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	93
PID 3008 wrote to memory of 1808	3008	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	93
PID 3008 wrote to memory of 1808	3008	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	93
PID 3008 wrote to memory of 1808	3008	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	93
PID 3008 wrote to memory of 1808	3008	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	93
PID 3008 wrote to memory of 1808	3008	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	93
PID 3008 wrote to memory of 1808	3008	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	93
PID 3008 wrote to memory of 1808	3008	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	93
PID 3008 wrote to memory of 1808	3008	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	93
PID 3008 wrote to memory of 1808	3008	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	93
PID 3008 wrote to memory of 1808	3008	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	93

C:\Users\Admin\AppData\Local\Temp\5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe
"C:\Users\Admin\AppData\Local\Temp\5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.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:3008
- 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\5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4276
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\OzYxABbJ.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:5016
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\OzYxABbJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9F9B.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:5024
- C:\Users\Admin\AppData\Local\Temp\5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe
  "C:\Users\Admin\AppData\Local\Temp\5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe"
  2⤵
  PID:4780
- C:\Users\Admin\AppData\Local\Temp\5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe
  "C:\Users\Admin\AppData\Local\Temp\5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:1808

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

Loading Replay Monitor...

Downloads

C:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
c0c8362238110afd405131832eb8369f

SHA1
1af3a7495fd37e62a4cbe1941946d7e7d00fe153

SHA256
e33ee4da67e82d8ef92b2132b0bb346c43b947a0d2e66e857ad0793441f58051

SHA512
e2d56b4b9e21e7a2642b8255d7b62473f42a7009cedb0bccf5e84fae7ae86495a6ac0e4347c311893c4f4ac5a237d3c7c19579bf6da0ab8cf2452a654058e00c

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
968cb9309758126772781b83adb8a28f

SHA1
8da30e71accf186b2ba11da1797cf67f8f78b47c

SHA256
92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

SHA512
4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
18KB

MD5
84d3be96f0b56c6352b39a22fb6b4cb0

SHA1
96c84d65b7d9566bdc342f3d3b398d877863c58c

SHA256
d35ac9c8856f86ca58f5ecf83ff853376f616b8319f2bc812869e3115faf2216

SHA512
770722d85b585fedb2131ce0233426574a6e6b81de52b10d5fd561181605ec5a9675dcbbc46dbf07db69d1c7442bfa4c1c14591de57734621ecaf9654c311b70

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_nqjri0ev.nx1.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp9F9B.tmp

Filesize
1KB

MD5
3fe1176e3441c2b4553c004a64239a33

SHA1
cbae96285891e90a8df69ff61a67fb9851e72146

SHA256
433d2f0e4ee68b29c960c8e5508e8b1947b9b418f0cf8f1e2bcc5609b49db4b6

SHA512
929781440353288d0b56296828c1205c412d3a7da3430b6e5bbb162b8239dd636212527330621751fc67d18ce2d6f21abf464d249e5b16645ecfe38753c3a405

Download Submit
memory/1808-48-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1808-101-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1808-96-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1808-45-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1808-51-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1808-52-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1808-129-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1808-128-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1808-113-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1808-112-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1808-46-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1808-105-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1808-104-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1808-97-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1808-98-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3008-3-0x0000000005880000-0x0000000005912000-memory.dmp

Filesize
584KB

Download
memory/3008-4-0x0000000074570000-0x0000000074D20000-memory.dmp

Filesize
7.7MB

Download
memory/3008-6-0x0000000006AC0000-0x0000000006AD8000-memory.dmp

Filesize
96KB

Download
memory/3008-5-0x0000000005940000-0x000000000594A000-memory.dmp

Filesize
40KB

Download
memory/3008-0-0x000000007457E000-0x000000007457F000-memory.dmp

Filesize
4KB

Download
memory/3008-10-0x000000000AAD0000-0x000000000AB6C000-memory.dmp

Filesize
624KB

Download
memory/3008-53-0x0000000074570000-0x0000000074D20000-memory.dmp

Filesize
7.7MB

Download
memory/3008-9-0x0000000006BF0000-0x0000000006CB0000-memory.dmp

Filesize
768KB

Download
memory/3008-8-0x0000000074570000-0x0000000074D20000-memory.dmp

Filesize
7.7MB

Download
memory/3008-7-0x000000007457E000-0x000000007457F000-memory.dmp

Filesize
4KB

Download
memory/3008-2-0x0000000005F10000-0x00000000064B4000-memory.dmp

Filesize
5.6MB

Download
memory/3008-1-0x0000000000F10000-0x0000000000FFA000-memory.dmp

Filesize
936KB

Download
memory/4276-86-0x0000000007DC0000-0x0000000007DDA000-memory.dmp

Filesize
104KB

Download
memory/4276-83-0x0000000007C80000-0x0000000007C91000-memory.dmp

Filesize
68KB

Download
memory/4276-56-0x00000000076E0000-0x0000000007712000-memory.dmp

Filesize
200KB

Download
memory/4276-15-0x0000000002E50000-0x0000000002E86000-memory.dmp

Filesize
216KB

Download
memory/4276-78-0x0000000007740000-0x00000000077E3000-memory.dmp

Filesize
652KB

Download
memory/4276-16-0x0000000074570000-0x0000000074D20000-memory.dmp

Filesize
7.7MB

Download
memory/4276-80-0x0000000007A80000-0x0000000007A9A000-memory.dmp

Filesize
104KB

Download
memory/4276-81-0x0000000007AF0000-0x0000000007AFA000-memory.dmp

Filesize
40KB

Download
memory/4276-17-0x00000000058E0000-0x0000000005F08000-memory.dmp

Filesize
6.2MB

Download
memory/4276-29-0x0000000006080000-0x00000000060E6000-memory.dmp

Filesize
408KB

Download
memory/4276-18-0x0000000074570000-0x0000000074D20000-memory.dmp

Filesize
7.7MB

Download
memory/4276-19-0x0000000074570000-0x0000000074D20000-memory.dmp

Filesize
7.7MB

Download
memory/4276-57-0x0000000074E00000-0x0000000074E4C000-memory.dmp

Filesize
304KB

Download
memory/4276-22-0x0000000005790000-0x00000000057B2000-memory.dmp

Filesize
136KB

Download
memory/4276-31-0x00000000060F0000-0x0000000006156000-memory.dmp

Filesize
408KB

Download
memory/4276-67-0x0000000007720000-0x000000000773E000-memory.dmp

Filesize
120KB

Download
memory/4276-94-0x0000000074570000-0x0000000074D20000-memory.dmp

Filesize
7.7MB

Download
memory/5016-44-0x0000000005780000-0x0000000005AD4000-memory.dmp

Filesize
3.3MB

Download
memory/5016-54-0x0000000005D90000-0x0000000005DAE000-memory.dmp

Filesize
120KB

Download
memory/5016-93-0x0000000074570000-0x0000000074D20000-memory.dmp

Filesize
7.7MB

Download
memory/5016-55-0x0000000005DB0000-0x0000000005DFC000-memory.dmp

Filesize
304KB

Download
memory/5016-87-0x00000000073E0000-0x00000000073E8000-memory.dmp

Filesize
32KB

Download
memory/5016-21-0x0000000074570000-0x0000000074D20000-memory.dmp

Filesize
7.7MB

Download
memory/5016-20-0x0000000074570000-0x0000000074D20000-memory.dmp

Filesize
7.7MB

Download
memory/5016-85-0x0000000007300000-0x0000000007314000-memory.dmp

Filesize
80KB

Download
memory/5016-84-0x00000000072F0000-0x00000000072FE000-memory.dmp

Filesize
56KB

Download
memory/5016-82-0x0000000007340000-0x00000000073D6000-memory.dmp

Filesize
600KB

Download
memory/5016-79-0x0000000007700000-0x0000000007D7A000-memory.dmp

Filesize
6.5MB

Download
memory/5016-68-0x0000000074E00000-0x0000000074E4C000-memory.dmp

Filesize
304KB

Download