remcos | 3d34565abf55fd4d5963b1b1f2cf5590468b716b83ea67ba5231457f9153bc38

Analysis

max time kernel
150s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
19-12-2024 01:00

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General

Target

be5fbed126be0685414464f8d18c42027cbb09c884640c35e2420f96c0d254df.exe
Size

1.0MB
MD5

065a6053492ecc989755413d4b9cffea
SHA1

9955cde6556837bc877e596c5b206df39d060a00
SHA256

be5fbed126be0685414464f8d18c42027cbb09c884640c35e2420f96c0d254df
SHA512

1185623940e192747b0c794c3e63c56ad6f941dca6cccf5db2cbf57ccf3cca6b3ba49aa9922dfde87c82b69920c48222c249b70e13915e542dfb6e11072c9588
SSDEEP

24576:60u2uOCjadxmISCQDJ8wovaxTFfJDe4Pu2:6euCfLQ5xTFd5

Score

10^/10

remcos elvis discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

elvis

107.173.4.16:2560

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-T6WK9E
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
Remcos family
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
376	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	be5fbed126be0685414464f8d18c42027cbb09c884640c35e2420f96c0d254df.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1384 set thread context of 3940	1384	be5fbed126be0685414464f8d18c42027cbb09c884640c35e2420f96c0d254df.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 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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MSBuild.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	be5fbed126be0685414464f8d18c42027cbb09c884640c35e2420f96c0d254df.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.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
2624	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
376	powershell.exe
376	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	376	powershell.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1384 wrote to memory of 376	1384	be5fbed126be0685414464f8d18c42027cbb09c884640c35e2420f96c0d254df.exe	96
PID 1384 wrote to memory of 376	1384	be5fbed126be0685414464f8d18c42027cbb09c884640c35e2420f96c0d254df.exe	96
PID 1384 wrote to memory of 376	1384	be5fbed126be0685414464f8d18c42027cbb09c884640c35e2420f96c0d254df.exe	96
PID 1384 wrote to memory of 2624	1384	be5fbed126be0685414464f8d18c42027cbb09c884640c35e2420f96c0d254df.exe	98
PID 1384 wrote to memory of 2624	1384	be5fbed126be0685414464f8d18c42027cbb09c884640c35e2420f96c0d254df.exe	98
PID 1384 wrote to memory of 2624	1384	be5fbed126be0685414464f8d18c42027cbb09c884640c35e2420f96c0d254df.exe	98
PID 1384 wrote to memory of 3940	1384	be5fbed126be0685414464f8d18c42027cbb09c884640c35e2420f96c0d254df.exe	100
PID 1384 wrote to memory of 3940	1384	be5fbed126be0685414464f8d18c42027cbb09c884640c35e2420f96c0d254df.exe	100
PID 1384 wrote to memory of 3940	1384	be5fbed126be0685414464f8d18c42027cbb09c884640c35e2420f96c0d254df.exe	100
PID 1384 wrote to memory of 3940	1384	be5fbed126be0685414464f8d18c42027cbb09c884640c35e2420f96c0d254df.exe	100
PID 1384 wrote to memory of 3940	1384	be5fbed126be0685414464f8d18c42027cbb09c884640c35e2420f96c0d254df.exe	100
PID 1384 wrote to memory of 3940	1384	be5fbed126be0685414464f8d18c42027cbb09c884640c35e2420f96c0d254df.exe	100
PID 1384 wrote to memory of 3940	1384	be5fbed126be0685414464f8d18c42027cbb09c884640c35e2420f96c0d254df.exe	100
PID 1384 wrote to memory of 3940	1384	be5fbed126be0685414464f8d18c42027cbb09c884640c35e2420f96c0d254df.exe	100
PID 1384 wrote to memory of 3940	1384	be5fbed126be0685414464f8d18c42027cbb09c884640c35e2420f96c0d254df.exe	100
PID 1384 wrote to memory of 3940	1384	be5fbed126be0685414464f8d18c42027cbb09c884640c35e2420f96c0d254df.exe	100

C:\Users\Admin\AppData\Local\Temp\be5fbed126be0685414464f8d18c42027cbb09c884640c35e2420f96c0d254df.exe
"C:\Users\Admin\AppData\Local\Temp\be5fbed126be0685414464f8d18c42027cbb09c884640c35e2420f96c0d254df.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1384
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\DcBNSgyxoJFip.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:376
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\DcBNSgyxoJFip" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFE36.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2624
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3940

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_0cnsqboy.ne0.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpFE36.tmp

Filesize
1KB

MD5
ce26234ed42907bb06fa034f024a380e

SHA1
b33a73c58c558c286ddfc8faea5ffc9d2f696dca

SHA256
bc1e6765314f3cb5a27d3ed271ec7acf0b2f0dc39d96ce805d3eddebe7b61981

SHA512
c9f57182d03fcbc6d3043ea1d3c62a61cc12192076da362af60591506d82f83c093c556cdd51c1a52339836a0ded340c265a11ee09be1dd146a25b4e6c76a72a

Download Submit
memory/376-67-0x0000000007060000-0x0000000007074000-memory.dmp

Filesize
80KB

Download
memory/376-68-0x0000000007160000-0x000000000717A000-memory.dmp

Filesize
104KB

Download
memory/376-46-0x0000000005B00000-0x0000000005B1E000-memory.dmp

Filesize
120KB

Download
memory/376-62-0x0000000006E20000-0x0000000006E3A000-memory.dmp

Filesize
104KB

Download
memory/376-61-0x0000000007470000-0x0000000007AEA000-memory.dmp

Filesize
6.5MB

Download
memory/376-60-0x0000000006AD0000-0x0000000006B73000-memory.dmp

Filesize
652KB

Download
memory/376-59-0x00000000060A0000-0x00000000060BE000-memory.dmp

Filesize
120KB

Download
memory/376-49-0x0000000070CD0000-0x0000000070D1C000-memory.dmp

Filesize
304KB

Download
memory/376-48-0x00000000060C0000-0x00000000060F2000-memory.dmp

Filesize
200KB

Download
memory/376-15-0x00000000021E0000-0x0000000002216000-memory.dmp

Filesize
216KB

Download
memory/376-17-0x0000000074510000-0x0000000074CC0000-memory.dmp

Filesize
7.7MB

Download
memory/376-18-0x0000000004DF0000-0x0000000005418000-memory.dmp

Filesize
6.2MB

Download
memory/376-47-0x0000000005B30000-0x0000000005B7C000-memory.dmp

Filesize
304KB

Download
memory/376-19-0x0000000074510000-0x0000000074CC0000-memory.dmp

Filesize
7.7MB

Download
memory/376-64-0x00000000070A0000-0x0000000007136000-memory.dmp

Filesize
600KB

Download
memory/376-72-0x0000000074510000-0x0000000074CC0000-memory.dmp

Filesize
7.7MB

Download
memory/376-69-0x0000000007140000-0x0000000007148000-memory.dmp

Filesize
32KB

Download
memory/376-63-0x0000000006E90000-0x0000000006E9A000-memory.dmp

Filesize
40KB

Download
memory/376-65-0x0000000007020000-0x0000000007031000-memory.dmp

Filesize
68KB

Download
memory/376-27-0x0000000004D40000-0x0000000004D62000-memory.dmp

Filesize
136KB

Download
memory/376-29-0x0000000005420000-0x0000000005486000-memory.dmp

Filesize
408KB

Download
memory/376-66-0x0000000007050000-0x000000000705E000-memory.dmp

Filesize
56KB

Download
memory/376-30-0x0000000005490000-0x00000000054F6000-memory.dmp

Filesize
408KB

Download
memory/376-36-0x0000000005500000-0x0000000005854000-memory.dmp

Filesize
3.3MB

Download
memory/1384-28-0x0000000074510000-0x0000000074CC0000-memory.dmp

Filesize
7.7MB

Download
memory/1384-1-0x0000000000A00000-0x0000000000B0C000-memory.dmp

Filesize
1.0MB

Download
memory/1384-4-0x00000000056A0000-0x00000000056AA000-memory.dmp

Filesize
40KB

Download
memory/1384-0-0x000000007451E000-0x000000007451F000-memory.dmp

Filesize
4KB

Download
memory/1384-3-0x0000000005500000-0x0000000005592000-memory.dmp

Filesize
584KB

Download
memory/1384-2-0x0000000005A10000-0x0000000005FB4000-memory.dmp

Filesize
5.6MB

Download
memory/1384-10-0x000000000A800000-0x000000000A8C4000-memory.dmp

Filesize
784KB

Download
memory/1384-9-0x0000000074510000-0x0000000074CC0000-memory.dmp

Filesize
7.7MB

Download
memory/1384-8-0x000000007451E000-0x000000007451F000-memory.dmp

Filesize
4KB

Download
memory/1384-7-0x00000000059E0000-0x0000000005A06000-memory.dmp

Filesize
152KB

Download
memory/1384-6-0x00000000057A0000-0x000000000583C000-memory.dmp

Filesize
624KB

Download
memory/1384-5-0x0000000074510000-0x0000000074CC0000-memory.dmp

Filesize
7.7MB

Download
memory/3940-21-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3940-73-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3940-79-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3940-38-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3940-20-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3940-24-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3940-26-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3940-23-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3940-37-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3940-74-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3940-75-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3940-76-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3940-78-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3940-39-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3940-80-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3940-81-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3940-82-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3940-83-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download