remcos | 641c7a85c8e5fa2acfd3c75abd60f9621267392a2ac8de3695a68985e474ffe1

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
16-09-2024 10:16

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General

Target

Trojan.Win32.exe
Size

911KB
MD5

5fa35f95fcde854ab3597e772806d130
SHA1

ae86292275be173522c5f67ecec11b1a7d891601
SHA256

641c7a85c8e5fa2acfd3c75abd60f9621267392a2ac8de3695a68985e474ffe1
SHA512

6182245cf86fa5ec728f38ef9275ec67372793abfa6e508f492f8e761cecc3ca4cc031f8e73f5d0d06cb5544dfcc38e022bc7a262366ef8611d98018105a0d1f
SSDEEP

24576:lJorJR8YGIrpDXDoSWdLhaP7pNALylx3SZfUgbHjtFh:lyNXGoTIzq7ELyL3cUsRFh

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

127.0.0.1:56765

127.0.0.1:45645

latestgrace2024.duckdns.org:45645

latestgrace2024.duckdns.org:56765

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-NXBY7S
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
Remcos
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 1 IoCs

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

execution

PowerShell

T1059.001

pid	Process
2740	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2956 set thread context of 2212	2956	Trojan.Win32.exe	33

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	Trojan.Win32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Trojan.Win32.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2740	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2740	powershell.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 2956 wrote to memory of 2740	2956	Trojan.Win32.exe	31
PID 2956 wrote to memory of 2740	2956	Trojan.Win32.exe	31
PID 2956 wrote to memory of 2740	2956	Trojan.Win32.exe	31
PID 2956 wrote to memory of 2740	2956	Trojan.Win32.exe	31
PID 2956 wrote to memory of 2212	2956	Trojan.Win32.exe	33
PID 2956 wrote to memory of 2212	2956	Trojan.Win32.exe	33
PID 2956 wrote to memory of 2212	2956	Trojan.Win32.exe	33
PID 2956 wrote to memory of 2212	2956	Trojan.Win32.exe	33
PID 2956 wrote to memory of 2212	2956	Trojan.Win32.exe	33
PID 2956 wrote to memory of 2212	2956	Trojan.Win32.exe	33
PID 2956 wrote to memory of 2212	2956	Trojan.Win32.exe	33
PID 2956 wrote to memory of 2212	2956	Trojan.Win32.exe	33
PID 2956 wrote to memory of 2212	2956	Trojan.Win32.exe	33
PID 2956 wrote to memory of 2212	2956	Trojan.Win32.exe	33
PID 2956 wrote to memory of 2212	2956	Trojan.Win32.exe	33
PID 2956 wrote to memory of 2212	2956	Trojan.Win32.exe	33
PID 2956 wrote to memory of 2212	2956	Trojan.Win32.exe	33

C:\Users\Admin\AppData\Local\Temp\Trojan.Win32.exe
"C:\Users\Admin\AppData\Local\Temp\Trojan.Win32.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2956
- 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\Trojan.Win32.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2740
- C:\Users\Admin\AppData\Local\Temp\Trojan.Win32.exe
  "C:\Users\Admin\AppData\Local\Temp\Trojan.Win32.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2212

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

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

Replay Monitor

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Downloads

memory/2212-40-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2212-71-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2212-19-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2212-30-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2212-27-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2212-75-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2212-74-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2212-23-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2212-21-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2212-17-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2212-15-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2212-13-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2212-11-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2212-9-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2212-7-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2212-73-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2212-72-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2212-41-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2212-69-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2212-70-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2212-68-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2212-34-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2212-36-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2212-37-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2212-38-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2212-39-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2212-28-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2212-25-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2212-65-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2212-44-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2212-45-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2212-46-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2212-48-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2212-47-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2212-49-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2212-50-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2212-51-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2212-54-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2212-56-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2212-57-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2212-58-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2212-60-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2212-62-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2212-64-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2212-42-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2212-66-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2956-33-0x0000000074690000-0x0000000074D7E000-memory.dmp

Filesize
6.9MB

Download
memory/2956-6-0x0000000005340000-0x00000000053FE000-memory.dmp

Filesize
760KB

Download
memory/2956-5-0x0000000074690000-0x0000000074D7E000-memory.dmp

Filesize
6.9MB

Download
memory/2956-4-0x000000007469E000-0x000000007469F000-memory.dmp

Filesize
4KB

Download
memory/2956-3-0x0000000000510000-0x0000000000520000-memory.dmp

Filesize
64KB

Download
memory/2956-2-0x0000000074690000-0x0000000074D7E000-memory.dmp

Filesize
6.9MB

Download
memory/2956-1-0x0000000000F00000-0x0000000000FEA000-memory.dmp

Filesize
936KB

Download
memory/2956-0-0x000000007469E000-0x000000007469F000-memory.dmp

Filesize
4KB

Download