remcos | d7b82542403c06b63adcd6c4a46614ebc04d903c9c404097d30cc85e0237c2bc

Analysis

max time kernel
149s
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
25-09-2024 02:36

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General

Target

d7b82542403c06b63adcd6c4a46614ebc04d903c9c404097d30cc85e0237c2bc.exe
Size

881KB
MD5

a1b7c41a0ef9eb2af3337a97127329d9
SHA1

c94ffbdc29ab82e90b704e33838a1ea6af3cf14a
SHA256

d7b82542403c06b63adcd6c4a46614ebc04d903c9c404097d30cc85e0237c2bc
SHA512

4cd922ffff1940fdea5350b98a54954970f200c3a5c23c2117f8cbcf48bf389c170506b9760b949357d378734e60634512a2801f9a37512f7cf6f12a97147e1e
SSDEEP

24576:5rEmwPVpOaOXAHs2NAZZHy0SUAP2F/cvn:SZtpxOl2NAZ5fD/

Score

10^/10

remcos mekus discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

mekus

dpm-sael.com:2017

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
meckus-ODY51K
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
4980	powershell.exe
4952	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-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation	d7b82542403c06b63adcd6c4a46614ebc04d903c9c404097d30cc85e0237c2bc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2944 set thread context of 3320	2944	d7b82542403c06b63adcd6c4a46614ebc04d903c9c404097d30cc85e0237c2bc.exe	95

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	d7b82542403c06b63adcd6c4a46614ebc04d903c9c404097d30cc85e0237c2bc.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	d7b82542403c06b63adcd6c4a46614ebc04d903c9c404097d30cc85e0237c2bc.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
4156	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4980	powershell.exe
4952	powershell.exe
4980	powershell.exe
4952	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4980	powershell.exe
Token: SeDebugPrivilege	4952	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3320	d7b82542403c06b63adcd6c4a46614ebc04d903c9c404097d30cc85e0237c2bc.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2944 wrote to memory of 4980	2944	d7b82542403c06b63adcd6c4a46614ebc04d903c9c404097d30cc85e0237c2bc.exe	89
PID 2944 wrote to memory of 4980	2944	d7b82542403c06b63adcd6c4a46614ebc04d903c9c404097d30cc85e0237c2bc.exe	89
PID 2944 wrote to memory of 4980	2944	d7b82542403c06b63adcd6c4a46614ebc04d903c9c404097d30cc85e0237c2bc.exe	89
PID 2944 wrote to memory of 4952	2944	d7b82542403c06b63adcd6c4a46614ebc04d903c9c404097d30cc85e0237c2bc.exe	91
PID 2944 wrote to memory of 4952	2944	d7b82542403c06b63adcd6c4a46614ebc04d903c9c404097d30cc85e0237c2bc.exe	91
PID 2944 wrote to memory of 4952	2944	d7b82542403c06b63adcd6c4a46614ebc04d903c9c404097d30cc85e0237c2bc.exe	91
PID 2944 wrote to memory of 4156	2944	d7b82542403c06b63adcd6c4a46614ebc04d903c9c404097d30cc85e0237c2bc.exe	93
PID 2944 wrote to memory of 4156	2944	d7b82542403c06b63adcd6c4a46614ebc04d903c9c404097d30cc85e0237c2bc.exe	93
PID 2944 wrote to memory of 4156	2944	d7b82542403c06b63adcd6c4a46614ebc04d903c9c404097d30cc85e0237c2bc.exe	93
PID 2944 wrote to memory of 3320	2944	d7b82542403c06b63adcd6c4a46614ebc04d903c9c404097d30cc85e0237c2bc.exe	95
PID 2944 wrote to memory of 3320	2944	d7b82542403c06b63adcd6c4a46614ebc04d903c9c404097d30cc85e0237c2bc.exe	95
PID 2944 wrote to memory of 3320	2944	d7b82542403c06b63adcd6c4a46614ebc04d903c9c404097d30cc85e0237c2bc.exe	95
PID 2944 wrote to memory of 3320	2944	d7b82542403c06b63adcd6c4a46614ebc04d903c9c404097d30cc85e0237c2bc.exe	95
PID 2944 wrote to memory of 3320	2944	d7b82542403c06b63adcd6c4a46614ebc04d903c9c404097d30cc85e0237c2bc.exe	95
PID 2944 wrote to memory of 3320	2944	d7b82542403c06b63adcd6c4a46614ebc04d903c9c404097d30cc85e0237c2bc.exe	95
PID 2944 wrote to memory of 3320	2944	d7b82542403c06b63adcd6c4a46614ebc04d903c9c404097d30cc85e0237c2bc.exe	95
PID 2944 wrote to memory of 3320	2944	d7b82542403c06b63adcd6c4a46614ebc04d903c9c404097d30cc85e0237c2bc.exe	95
PID 2944 wrote to memory of 3320	2944	d7b82542403c06b63adcd6c4a46614ebc04d903c9c404097d30cc85e0237c2bc.exe	95
PID 2944 wrote to memory of 3320	2944	d7b82542403c06b63adcd6c4a46614ebc04d903c9c404097d30cc85e0237c2bc.exe	95
PID 2944 wrote to memory of 3320	2944	d7b82542403c06b63adcd6c4a46614ebc04d903c9c404097d30cc85e0237c2bc.exe	95
PID 2944 wrote to memory of 3320	2944	d7b82542403c06b63adcd6c4a46614ebc04d903c9c404097d30cc85e0237c2bc.exe	95

C:\Users\Admin\AppData\Local\Temp\d7b82542403c06b63adcd6c4a46614ebc04d903c9c404097d30cc85e0237c2bc.exe
"C:\Users\Admin\AppData\Local\Temp\d7b82542403c06b63adcd6c4a46614ebc04d903c9c404097d30cc85e0237c2bc.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2944
- 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\d7b82542403c06b63adcd6c4a46614ebc04d903c9c404097d30cc85e0237c2bc.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4980
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\rxoPEmTYk.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4952
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\rxoPEmTYk" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDC56.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:4156
- C:\Users\Admin\AppData\Local\Temp\d7b82542403c06b63adcd6c4a46614ebc04d903c9c404097d30cc85e0237c2bc.exe
  "C:\Users\Admin\AppData\Local\Temp\d7b82542403c06b63adcd6c4a46614ebc04d903c9c404097d30cc85e0237c2bc.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:3320

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:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
6ff002c0b71d5fbf009a45d3b0658e15

SHA1
9bf157464c25753161f664b5edc2c7ce949e27f4

SHA256
8d8cd174aed3d03fbf0cbef6141669d2e06c368be145717df553995c8509aa20

SHA512
70bb4ee0acd2b066a2384993e220a5545fb9439723f669eb4c5083c5305b27dbce06902e1784ccdf06106d66e685961beebbf2a7de9f1dcff1e70ffa029a1121

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
72d8756fc8033b41c2c09434144d3da1

SHA1
a5639cb5f59a1a781ccb8ea3c2febe1839089a82

SHA256
51b66c651e549c62d340578acb1e3c92f4da6983dca6fb035f3df2fbc68401be

SHA512
4e6560b34da1bff9f9a432edc4c2941bfa5cdbac491edb75bdd0b6689cd9f271f707e7984fdc7d6a30bbf2474b455182ad1ba075d6efad28538b58d9ea5c7f80

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_r00ygm5i.xag.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpDC56.tmp

Filesize
1KB

MD5
1432857321139daf1743f239edaa2207

SHA1
407361b8a0d46a4bf2f0475b3903c6d7f7d04870

SHA256
24030f48f84e54ce2d1d5edca1e77b3e78572d1c43ce72c36b03a9437dcf7ff0

SHA512
28a4c817295523648a756c5a0d5b397ad553bb9e0aadf847e9e8e923688af85da52aafc379b8c14899a9e50a001ba150fd2a256593879c3b733ca7463681ccca

Download Submit
memory/2944-4-0x00000000751A0000-0x0000000075950000-memory.dmp

Filesize
7.7MB

Download
memory/2944-6-0x0000000005C00000-0x0000000005C10000-memory.dmp

Filesize
64KB

Download
memory/2944-7-0x00000000751AE000-0x00000000751AF000-memory.dmp

Filesize
4KB

Download
memory/2944-8-0x00000000751A0000-0x0000000075950000-memory.dmp

Filesize
7.7MB

Download
memory/2944-9-0x00000000075E0000-0x00000000076A0000-memory.dmp

Filesize
768KB

Download
memory/2944-10-0x0000000009C20000-0x0000000009CBC000-memory.dmp

Filesize
624KB

Download
memory/2944-5-0x0000000005A30000-0x0000000005A3A000-memory.dmp

Filesize
40KB

Download
memory/2944-3-0x0000000005980000-0x0000000005A12000-memory.dmp

Filesize
584KB

Download
memory/2944-2-0x0000000005E30000-0x00000000063D4000-memory.dmp

Filesize
5.6MB

Download
memory/2944-53-0x00000000751A0000-0x0000000075950000-memory.dmp

Filesize
7.7MB

Download
memory/2944-1-0x0000000000EC0000-0x0000000000FA2000-memory.dmp

Filesize
904KB

Download
memory/2944-0-0x00000000751AE000-0x00000000751AF000-memory.dmp

Filesize
4KB

Download
memory/3320-58-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3320-57-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3320-111-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3320-119-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3320-120-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3320-136-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3320-135-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3320-45-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3320-103-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3320-54-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3320-127-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3320-128-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3320-52-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3320-112-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3320-104-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3320-49-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3320-61-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3320-59-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3320-48-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4952-91-0x0000000007D20000-0x0000000007D34000-memory.dmp

Filesize
80KB

Download
memory/4952-47-0x00000000751A0000-0x0000000075950000-memory.dmp

Filesize
7.7MB

Download
memory/4952-44-0x00000000751A0000-0x0000000075950000-memory.dmp

Filesize
7.7MB

Download
memory/4952-74-0x000000006FAD0000-0x000000006FB1C000-memory.dmp

Filesize
304KB

Download
memory/4952-100-0x00000000751A0000-0x0000000075950000-memory.dmp

Filesize
7.7MB

Download
memory/4952-29-0x00000000751A0000-0x0000000075950000-memory.dmp

Filesize
7.7MB

Download
memory/4952-86-0x0000000008120000-0x000000000879A000-memory.dmp

Filesize
6.5MB

Download
memory/4952-93-0x0000000007E00000-0x0000000007E08000-memory.dmp

Filesize
32KB

Download
memory/4980-21-0x0000000005DF0000-0x0000000005E56000-memory.dmp

Filesize
408KB

Download
memory/4980-88-0x0000000007AE0000-0x0000000007B76000-memory.dmp

Filesize
600KB

Download
memory/4980-89-0x0000000007A60000-0x0000000007A71000-memory.dmp

Filesize
68KB

Download
memory/4980-90-0x0000000007A90000-0x0000000007A9E000-memory.dmp

Filesize
56KB

Download
memory/4980-87-0x00000000078D0000-0x00000000078DA000-memory.dmp

Filesize
40KB

Download
memory/4980-92-0x0000000007BA0000-0x0000000007BBA000-memory.dmp

Filesize
104KB

Download
memory/4980-85-0x0000000007860000-0x000000000787A000-memory.dmp

Filesize
104KB

Download
memory/4980-62-0x0000000007510000-0x0000000007542000-memory.dmp

Filesize
200KB

Download
memory/4980-73-0x0000000006B00000-0x0000000006B1E000-memory.dmp

Filesize
120KB

Download
memory/4980-99-0x00000000751A0000-0x0000000075950000-memory.dmp

Filesize
7.7MB

Download
memory/4980-80-0x0000000007550000-0x00000000075F3000-memory.dmp

Filesize
652KB

Download
memory/4980-63-0x000000006FAD0000-0x000000006FB1C000-memory.dmp

Filesize
304KB

Download
memory/4980-56-0x0000000006A70000-0x0000000006ABC000-memory.dmp

Filesize
304KB

Download
memory/4980-55-0x0000000006510000-0x000000000652E000-memory.dmp

Filesize
120KB

Download
memory/4980-23-0x0000000005E60000-0x00000000061B4000-memory.dmp

Filesize
3.3MB

Download
memory/4980-19-0x0000000005570000-0x0000000005592000-memory.dmp

Filesize
136KB

Download
memory/4980-20-0x0000000005D80000-0x0000000005DE6000-memory.dmp

Filesize
408KB

Download
memory/4980-22-0x00000000751A0000-0x0000000075950000-memory.dmp

Filesize
7.7MB

Download
memory/4980-17-0x00000000055E0000-0x0000000005C08000-memory.dmp

Filesize
6.2MB

Download
memory/4980-18-0x00000000751A0000-0x0000000075950000-memory.dmp

Filesize
7.7MB

Download
memory/4980-16-0x00000000751A0000-0x0000000075950000-memory.dmp

Filesize
7.7MB

Download
memory/4980-15-0x0000000004F70000-0x0000000004FA6000-memory.dmp

Filesize
216KB

Download