remcos | be5fbed126be0685414464f8d18c42027cbb09c884640c35e2420f96c0d254df

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
17-12-2024 19:40

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General

Target

file.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
2988	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2492 set thread context of 2720	2492	file.exe	35

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 3 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	file.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.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
2172	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2988	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2988	powershell.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2492 wrote to memory of 2988	2492	file.exe	31
PID 2492 wrote to memory of 2988	2492	file.exe	31
PID 2492 wrote to memory of 2988	2492	file.exe	31
PID 2492 wrote to memory of 2988	2492	file.exe	31
PID 2492 wrote to memory of 2172	2492	file.exe	33
PID 2492 wrote to memory of 2172	2492	file.exe	33
PID 2492 wrote to memory of 2172	2492	file.exe	33
PID 2492 wrote to memory of 2172	2492	file.exe	33
PID 2492 wrote to memory of 2720	2492	file.exe	35
PID 2492 wrote to memory of 2720	2492	file.exe	35
PID 2492 wrote to memory of 2720	2492	file.exe	35
PID 2492 wrote to memory of 2720	2492	file.exe	35
PID 2492 wrote to memory of 2720	2492	file.exe	35
PID 2492 wrote to memory of 2720	2492	file.exe	35
PID 2492 wrote to memory of 2720	2492	file.exe	35
PID 2492 wrote to memory of 2720	2492	file.exe	35
PID 2492 wrote to memory of 2720	2492	file.exe	35
PID 2492 wrote to memory of 2720	2492	file.exe	35
PID 2492 wrote to memory of 2720	2492	file.exe	35

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2492
- 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:2988
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\DcBNSgyxoJFip" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE3DA.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2172
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  2⤵
  PID:2720

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

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpE3DA.tmp

Filesize
1KB

MD5
900d08c9a55d06c804f5be408b80adc5

SHA1
05fe7e6744a577d1ab790119994d6abd6bcb8128

SHA256
b48379e6ae1be51523fb910a8df5dd13b244a573ee6c39308ee2ff1c3c2dc619

SHA512
1ee0dbf281dc0f1e6fa19971c57b9f94834df0734c1ada33d8110dfa02926a96f98453d4ec40f67630821b255f2320e0104a55e0e7adcefb0b1dc8b9a6082288

Download Submit
memory/2492-29-0x0000000074110000-0x00000000747FE000-memory.dmp

Filesize
6.9MB

Download
memory/2492-1-0x0000000001030000-0x000000000113C000-memory.dmp

Filesize
1.0MB

Download
memory/2492-2-0x0000000074110000-0x00000000747FE000-memory.dmp

Filesize
6.9MB

Download
memory/2492-3-0x00000000009E0000-0x0000000000A06000-memory.dmp

Filesize
152KB

Download
memory/2492-4-0x000000007411E000-0x000000007411F000-memory.dmp

Filesize
4KB

Download
memory/2492-5-0x0000000074110000-0x00000000747FE000-memory.dmp

Filesize
6.9MB

Download
memory/2492-6-0x000000000A480000-0x000000000A544000-memory.dmp

Filesize
784KB

Download
memory/2492-0-0x000000007411E000-0x000000007411F000-memory.dmp

Filesize
4KB

Download
memory/2720-44-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2720-50-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2720-16-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2720-18-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2720-22-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2720-30-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2720-31-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2720-20-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2720-28-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2720-27-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2720-24-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2720-32-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2720-33-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2720-34-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2720-35-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2720-36-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2720-37-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2720-38-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2720-39-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2720-40-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2720-41-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2720-42-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2720-43-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2720-14-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2720-45-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2720-46-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2720-47-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2720-48-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2720-49-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2720-26-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2720-51-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2720-52-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2720-53-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2720-54-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2720-55-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2720-56-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2720-57-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2720-58-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2720-59-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2720-60-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2720-61-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2720-62-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2720-63-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2720-64-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2720-65-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2720-66-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2720-67-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2720-68-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2720-69-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2720-70-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2720-71-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2720-72-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2720-73-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2720-74-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2720-75-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2720-76-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2720-77-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2720-78-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download