remcos | 30cce4098f4b1b1cf5bffc2e8fa8a58a8d51e130db48e7d157fe8fab5c12bd38

Analysis

max time kernel
298s
max time network
251s
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 06:48

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General

Target

0988986/0988986.exe
Size

897KB
MD5

00cb16ec61346dc7a4410acbb683a6f2
SHA1

d4c2741a51aef320c23e66221741bdbfbda9ddea
SHA256

1c251b2a58b7c9c19bca9f5eb75fa7cd93a73fe07e34c1759a2381dda79ffda4
SHA512

e33736dcb7e553bfdfc708c948413630496befdc9fc4bf5a83e42cea93ea400624379aeca984636b066c7d2377a524ce00112215c68a9dd6b4bdd9aba845ed9d
SSDEEP

24576:qgEceydzP4Nj+x/SZ/Jk9R9Hq9AfQaz/smsNqGxDeI:qVkjmK9R9K9Af7sN3

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
4024	powershell.exe
2552	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-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation	0988986.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3228 set thread context of 4600	3228	0988986.exe	98

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	0988986.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	0988986.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
1792	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
4024	powershell.exe
2552	powershell.exe
3228	0988986.exe
3228	0988986.exe
3228	0988986.exe
3228	0988986.exe
4024	powershell.exe
2552	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4024	powershell.exe
Token: SeDebugPrivilege	2552	powershell.exe
Token: SeDebugPrivilege	3228	0988986.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4600	0988986.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 3228 wrote to memory of 4024	3228	0988986.exe	90
PID 3228 wrote to memory of 4024	3228	0988986.exe	90
PID 3228 wrote to memory of 4024	3228	0988986.exe	90
PID 3228 wrote to memory of 2552	3228	0988986.exe	92
PID 3228 wrote to memory of 2552	3228	0988986.exe	92
PID 3228 wrote to memory of 2552	3228	0988986.exe	92
PID 3228 wrote to memory of 1792	3228	0988986.exe	94
PID 3228 wrote to memory of 1792	3228	0988986.exe	94
PID 3228 wrote to memory of 1792	3228	0988986.exe	94
PID 3228 wrote to memory of 4012	3228	0988986.exe	96
PID 3228 wrote to memory of 4012	3228	0988986.exe	96
PID 3228 wrote to memory of 4012	3228	0988986.exe	96
PID 3228 wrote to memory of 2704	3228	0988986.exe	97
PID 3228 wrote to memory of 2704	3228	0988986.exe	97
PID 3228 wrote to memory of 2704	3228	0988986.exe	97
PID 3228 wrote to memory of 4600	3228	0988986.exe	98
PID 3228 wrote to memory of 4600	3228	0988986.exe	98
PID 3228 wrote to memory of 4600	3228	0988986.exe	98
PID 3228 wrote to memory of 4600	3228	0988986.exe	98
PID 3228 wrote to memory of 4600	3228	0988986.exe	98
PID 3228 wrote to memory of 4600	3228	0988986.exe	98
PID 3228 wrote to memory of 4600	3228	0988986.exe	98
PID 3228 wrote to memory of 4600	3228	0988986.exe	98
PID 3228 wrote to memory of 4600	3228	0988986.exe	98
PID 3228 wrote to memory of 4600	3228	0988986.exe	98
PID 3228 wrote to memory of 4600	3228	0988986.exe	98
PID 3228 wrote to memory of 4600	3228	0988986.exe	98

C:\Users\Admin\AppData\Local\Temp\0988986\0988986.exe
"C:\Users\Admin\AppData\Local\Temp\0988986\0988986.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:3228
- 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\0988986\0988986.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4024
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\jcXOqLBJLRu.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2552
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\jcXOqLBJLRu" /XML "C:\Users\Admin\AppData\Local\Temp\tmpEF13.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1792
- C:\Users\Admin\AppData\Local\Temp\0988986\0988986.exe
  "C:\Users\Admin\AppData\Local\Temp\0988986\0988986.exe"
  2⤵
  PID:4012
- C:\Users\Admin\AppData\Local\Temp\0988986\0988986.exe
  "C:\Users\Admin\AppData\Local\Temp\0988986\0988986.exe"
  2⤵
  PID:2704
- C:\Users\Admin\AppData\Local\Temp\0988986\0988986.exe
  "C:\Users\Admin\AppData\Local\Temp\0988986\0988986.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:4600

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
aa611cde7024fdb1a4be8350977814d1

SHA1
4204b7a5240bacb9323fce0ca7b6c9d670f66476

SHA256
f8667b2610ba096a151aa0397b7d04e62ac8ffc645d12f3e09ec0fdeecc9a4b9

SHA512
2a8f940cad1ee55fcaf41a0601a14d665eebe495a49d3d3d5d025f50456e1f82d87e8e2ab1ac041c3fe3785d272bab7065a4519f6afb50599076d6a2181a5bd3

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
ab9c2e07c41dd3cc05d03e401ae4da14

SHA1
70de15538f5be78fcf63cea8b50e3c3c81e547ff

SHA256
ef0fcd19329d141518cdecd1083fd2d6a6abdf5e419bcb479c5a5e75cf8c324b

SHA512
7ec84bda12134e6d80b76928f95eaf08a98503f2f3cf24cf21e777aeea7eabc730ed64c4d01fbf6d6a80bce100fc5d9e668cc25c2eee2c38a453339e1f144302

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_b2ynpdst.odn.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpEF13.tmp

Filesize
1KB

MD5
0a2c87a97318251bd3d8725cc372880d

SHA1
169d362b8fd2e4cc0f050d1f2197658809131860

SHA256
c228a16a84ec114019589b960121166c45d8d3ac55bdd2e67c9c42177c2b4058

SHA512
f2dc0c24f84e09eb328f70b503ca9c42a277d89fddba7e6ee8efd35d228088df27d7941c5ad8545497fc99ccd0b04911570532de5cc36a5cfe82cc038cfb8d37

Download Submit
memory/2552-72-0x00000000739A0000-0x00000000739EC000-memory.dmp

Filesize
304KB

Download
memory/2552-36-0x0000000074ED0000-0x0000000075680000-memory.dmp

Filesize
7.7MB

Download
memory/2552-86-0x0000000007410000-0x0000000007424000-memory.dmp

Filesize
80KB

Download
memory/2552-87-0x0000000007510000-0x000000000752A000-memory.dmp

Filesize
104KB

Download
memory/2552-88-0x00000000074F0000-0x00000000074F8000-memory.dmp

Filesize
32KB

Download
memory/2552-52-0x0000000074ED0000-0x0000000075680000-memory.dmp

Filesize
7.7MB

Download
memory/2552-24-0x0000000074ED0000-0x0000000075680000-memory.dmp

Filesize
7.7MB

Download
memory/2552-97-0x0000000074ED0000-0x0000000075680000-memory.dmp

Filesize
7.7MB

Download
memory/3228-1-0x0000000000070000-0x0000000000156000-memory.dmp

Filesize
920KB

Download
memory/3228-9-0x00000000087F0000-0x00000000088B0000-memory.dmp

Filesize
768KB

Download
memory/3228-10-0x000000000B080000-0x000000000B11C000-memory.dmp

Filesize
624KB

Download
memory/3228-8-0x0000000074ED0000-0x0000000075680000-memory.dmp

Filesize
7.7MB

Download
memory/3228-7-0x0000000074EDE000-0x0000000074EDF000-memory.dmp

Filesize
4KB

Download
memory/3228-6-0x0000000004C40000-0x0000000004C52000-memory.dmp

Filesize
72KB

Download
memory/3228-4-0x0000000004A20000-0x0000000004A2A000-memory.dmp

Filesize
40KB

Download
memory/3228-5-0x0000000074ED0000-0x0000000075680000-memory.dmp

Filesize
7.7MB

Download
memory/3228-3-0x0000000004A50000-0x0000000004AE2000-memory.dmp

Filesize
584KB

Download
memory/3228-2-0x0000000004F60000-0x0000000005504000-memory.dmp

Filesize
5.6MB

Download
memory/3228-53-0x0000000074ED0000-0x0000000075680000-memory.dmp

Filesize
7.7MB

Download
memory/3228-0-0x0000000074EDE000-0x0000000074EDF000-memory.dmp

Filesize
4KB

Download
memory/4024-56-0x00000000060F0000-0x000000000613C000-memory.dmp

Filesize
304KB

Download
memory/4024-30-0x0000000005610000-0x0000000005964000-memory.dmp

Filesize
3.3MB

Download
memory/4024-15-0x0000000004650000-0x0000000004686000-memory.dmp

Filesize
216KB

Download
memory/4024-17-0x0000000004E80000-0x00000000054A8000-memory.dmp

Filesize
6.2MB

Download
memory/4024-98-0x0000000074ED0000-0x0000000075680000-memory.dmp

Filesize
7.7MB

Download
memory/4024-16-0x0000000074ED0000-0x0000000075680000-memory.dmp

Filesize
7.7MB

Download
memory/4024-54-0x0000000005BC0000-0x0000000005BDE000-memory.dmp

Filesize
120KB

Download
memory/4024-22-0x0000000004DC0000-0x0000000004E26000-memory.dmp

Filesize
408KB

Download
memory/4024-58-0x00000000739A0000-0x00000000739EC000-memory.dmp

Filesize
304KB

Download
memory/4024-57-0x0000000006190000-0x00000000061C2000-memory.dmp

Filesize
200KB

Download
memory/4024-68-0x0000000006DA0000-0x0000000006DBE000-memory.dmp

Filesize
120KB

Download
memory/4024-69-0x0000000006DD0000-0x0000000006E73000-memory.dmp

Filesize
652KB

Download
memory/4024-71-0x0000000006F00000-0x0000000006F1A000-memory.dmp

Filesize
104KB

Download
memory/4024-70-0x0000000007550000-0x0000000007BCA000-memory.dmp

Filesize
6.5MB

Download
memory/4024-23-0x00000000055A0000-0x0000000005606000-memory.dmp

Filesize
408KB

Download
memory/4024-82-0x0000000006F80000-0x0000000006F8A000-memory.dmp

Filesize
40KB

Download
memory/4024-83-0x0000000007180000-0x0000000007216000-memory.dmp

Filesize
600KB

Download
memory/4024-84-0x0000000007100000-0x0000000007111000-memory.dmp

Filesize
68KB

Download
memory/4024-85-0x0000000007130000-0x000000000713E000-memory.dmp

Filesize
56KB

Download
memory/4024-18-0x0000000074ED0000-0x0000000075680000-memory.dmp

Filesize
7.7MB

Download
memory/4024-21-0x0000000004C20000-0x0000000004C42000-memory.dmp

Filesize
136KB

Download
memory/4024-20-0x0000000074ED0000-0x0000000075680000-memory.dmp

Filesize
7.7MB

Download
memory/4600-103-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4600-91-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4600-104-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4600-48-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4600-55-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4600-37-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4600-35-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4600-100-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4600-156-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4600-90-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4600-51-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4600-113-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4600-127-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4600-128-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4600-141-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4600-142-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4600-155-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4600-89-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download