remcos | c0b8ab0ce70e5ef60f0e3a39efb2a33b2ca93d7c129a08fd05323575fb4a3dad

Analysis

max time kernel
149s
max time network
148s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
28/09/2024, 00:56

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General

Target

30586cbe469e9512308408268d1cf7cf.exe
Size

936KB
MD5

30586cbe469e9512308408268d1cf7cf
SHA1

4fbe66e2ac6e47a813d2b16f0323abf899ce0425
SHA256

c0b8ab0ce70e5ef60f0e3a39efb2a33b2ca93d7c129a08fd05323575fb4a3dad
SHA512

2c441b4c527f97e16ea3135e5715f3efa347a1214aa1d036cfa04cdce757dfa05823acb19c8f9d80b76858410ea05916cfa030d5bc48b5cae61d3a33e52ee066
SSDEEP

24576:cxoL0xHuCPEHka3tAZoZV/MXllDDYbb23IYJI:cxoLjCL+uZGV1XY

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

23.106.127.109:5432

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-8RHX5L
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 1 IoCs

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

execution

PowerShell

T1059.001

pid	Process
2152	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2568 set thread context of 2840	2568	30586cbe469e9512308408268d1cf7cf.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	30586cbe469e9512308408268d1cf7cf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	30586cbe469e9512308408268d1cf7cf.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2568	30586cbe469e9512308408268d1cf7cf.exe
2568	30586cbe469e9512308408268d1cf7cf.exe
2152	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2568	30586cbe469e9512308408268d1cf7cf.exe
Token: SeDebugPrivilege	2152	powershell.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 2568 wrote to memory of 2152	2568	30586cbe469e9512308408268d1cf7cf.exe	31
PID 2568 wrote to memory of 2152	2568	30586cbe469e9512308408268d1cf7cf.exe	31
PID 2568 wrote to memory of 2152	2568	30586cbe469e9512308408268d1cf7cf.exe	31
PID 2568 wrote to memory of 2152	2568	30586cbe469e9512308408268d1cf7cf.exe	31
PID 2568 wrote to memory of 2840	2568	30586cbe469e9512308408268d1cf7cf.exe	33
PID 2568 wrote to memory of 2840	2568	30586cbe469e9512308408268d1cf7cf.exe	33
PID 2568 wrote to memory of 2840	2568	30586cbe469e9512308408268d1cf7cf.exe	33
PID 2568 wrote to memory of 2840	2568	30586cbe469e9512308408268d1cf7cf.exe	33
PID 2568 wrote to memory of 2840	2568	30586cbe469e9512308408268d1cf7cf.exe	33
PID 2568 wrote to memory of 2840	2568	30586cbe469e9512308408268d1cf7cf.exe	33
PID 2568 wrote to memory of 2840	2568	30586cbe469e9512308408268d1cf7cf.exe	33
PID 2568 wrote to memory of 2840	2568	30586cbe469e9512308408268d1cf7cf.exe	33
PID 2568 wrote to memory of 2840	2568	30586cbe469e9512308408268d1cf7cf.exe	33
PID 2568 wrote to memory of 2840	2568	30586cbe469e9512308408268d1cf7cf.exe	33
PID 2568 wrote to memory of 2840	2568	30586cbe469e9512308408268d1cf7cf.exe	33
PID 2568 wrote to memory of 2840	2568	30586cbe469e9512308408268d1cf7cf.exe	33
PID 2568 wrote to memory of 2840	2568	30586cbe469e9512308408268d1cf7cf.exe	33

C:\Users\Admin\AppData\Local\Temp\30586cbe469e9512308408268d1cf7cf.exe
"C:\Users\Admin\AppData\Local\Temp\30586cbe469e9512308408268d1cf7cf.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2568
- 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\30586cbe469e9512308408268d1cf7cf.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2152
- C:\Users\Admin\AppData\Local\Temp\30586cbe469e9512308408268d1cf7cf.exe
  "C:\Users\Admin\AppData\Local\Temp\30586cbe469e9512308408268d1cf7cf.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2840

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/2568-0-0x00000000742AE000-0x00000000742AF000-memory.dmp

Filesize
4KB

Download
memory/2568-1-0x00000000012C0000-0x00000000013B0000-memory.dmp

Filesize
960KB

Download
memory/2568-2-0x00000000742A0000-0x000000007498E000-memory.dmp

Filesize
6.9MB

Download
memory/2568-3-0x00000000742A0000-0x000000007498E000-memory.dmp

Filesize
6.9MB

Download
memory/2568-4-0x00000000005E0000-0x00000000005F2000-memory.dmp

Filesize
72KB

Download
memory/2568-5-0x00000000742AE000-0x00000000742AF000-memory.dmp

Filesize
4KB

Download
memory/2568-6-0x00000000742A0000-0x000000007498E000-memory.dmp

Filesize
6.9MB

Download
memory/2568-7-0x0000000005890000-0x0000000005950000-memory.dmp

Filesize
768KB

Download
memory/2568-27-0x00000000742A0000-0x000000007498E000-memory.dmp

Filesize
6.9MB

Download
memory/2840-14-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2840-16-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2840-21-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2840-24-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2840-23-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2840-19-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2840-18-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2840-17-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2840-15-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2840-8-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2840-10-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2840-25-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2840-26-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2840-12-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2840-30-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2840-31-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2840-32-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2840-35-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2840-36-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2840-37-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2840-38-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2840-39-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2840-40-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2840-41-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2840-42-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2840-43-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2840-44-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2840-45-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download