remcos | b254541038b979c1c21f489e21bc15f594492aff656bc908aa54033bafb05775

General

Target

Bukti-transfer...exe
Size

1.0MB
MD5

ec5a7a616e71dd9eaa5453a172a2c952
SHA1

77c2abbfee86dc74dab6b7a13e7d0e3cd1589dec
SHA256

b254541038b979c1c21f489e21bc15f594492aff656bc908aa54033bafb05775
SHA512

7192ba6bc1353ad5ec5c1b6a19b7e7402cb36fc11e377fd23859c24a9ee28a6767138a726d630b5d201f4dc202a6d02cb1e18845115d7e83eae7808977e3fb9a
SSDEEP

24576:k+wIZTEg2BKLobjEmOTWcN0QCgqYmt9yX8THRr1OBQeb:k+wIZTPBkEWeCgZmt3p1OBzb

Score

10^/10

remcos feb 09 discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

FEB 09

C2

oktoviyanto.ddns.net:9373

103.186.117.61:9373

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-Z2L02T
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
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
2676	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1996 set thread context of 2912	1996	Bukti-transfer...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 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	Bukti-transfer...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	Bukti-transfer...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
2788	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1996	Bukti-transfer...exe
1996	Bukti-transfer...exe
2676	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1996	Bukti-transfer...exe
Token: SeDebugPrivilege	2676	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2912	Bukti-transfer...exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 1996 wrote to memory of 2676	1996	Bukti-transfer...exe	31
PID 1996 wrote to memory of 2676	1996	Bukti-transfer...exe	31
PID 1996 wrote to memory of 2676	1996	Bukti-transfer...exe	31
PID 1996 wrote to memory of 2676	1996	Bukti-transfer...exe	31
PID 1996 wrote to memory of 2788	1996	Bukti-transfer...exe	33
PID 1996 wrote to memory of 2788	1996	Bukti-transfer...exe	33
PID 1996 wrote to memory of 2788	1996	Bukti-transfer...exe	33
PID 1996 wrote to memory of 2788	1996	Bukti-transfer...exe	33
PID 1996 wrote to memory of 2912	1996	Bukti-transfer...exe	35
PID 1996 wrote to memory of 2912	1996	Bukti-transfer...exe	35
PID 1996 wrote to memory of 2912	1996	Bukti-transfer...exe	35
PID 1996 wrote to memory of 2912	1996	Bukti-transfer...exe	35
PID 1996 wrote to memory of 2912	1996	Bukti-transfer...exe	35
PID 1996 wrote to memory of 2912	1996	Bukti-transfer...exe	35
PID 1996 wrote to memory of 2912	1996	Bukti-transfer...exe	35
PID 1996 wrote to memory of 2912	1996	Bukti-transfer...exe	35
PID 1996 wrote to memory of 2912	1996	Bukti-transfer...exe	35
PID 1996 wrote to memory of 2912	1996	Bukti-transfer...exe	35
PID 1996 wrote to memory of 2912	1996	Bukti-transfer...exe	35
PID 1996 wrote to memory of 2912	1996	Bukti-transfer...exe	35
PID 1996 wrote to memory of 2912	1996	Bukti-transfer...exe	35

C:\Users\Admin\AppData\Local\Temp\Bukti-transfer...exe
"C:\Users\Admin\AppData\Local\Temp\Bukti-transfer...exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1996
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\libpROjsBrZfd.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2676
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\libpROjsBrZfd" /XML "C:\Users\Admin\AppData\Local\Temp\tmp20D9.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2788
- C:\Users\Admin\AppData\Local\Temp\Bukti-transfer...exe
  "C:\Users\Admin\AppData\Local\Temp\Bukti-transfer...exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:2912

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

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
c231bb45988f5d91948d6b0dda04d507

SHA1
984197f2c0e654de2367975261d53105f36d8708

SHA256
20f715807779fe721fe1a57f4faa93a8d6c4cbc3228c7b388a5422d2bb8e07b8

SHA512
076afd1ca3cb2362f4dce0a315bc7d3f669ac166fb9d8dff68e51be20c34d12fd0f7c66afdb013a0d14df11e40a76730e24d1d2b6a3f4742e318968c08bb915c

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp20D9.tmp

Filesize
1KB

MD5
23793f0413d06a62fa35d02e7879d2af

SHA1
b04b5f977ded21738b8e61b59b050620b7656a94

SHA256
f6dab986bacda5bca726f0a320b2da9874dccc321b32b5d2dcaa6520af6f3dd3

SHA512
983118b23c859aae9e48f55768583cf856314fc2b04009759552c541f7cac2e3f0db72350dc1162505733b4b8250eefeed39106813a9fb1a50b97174e3431d67

Download Submit
memory/1996-0-0x000000007467E000-0x000000007467F000-memory.dmp

Filesize
4KB

Download
memory/1996-1-0x0000000001280000-0x0000000001388000-memory.dmp

Filesize
1.0MB

Download
memory/1996-2-0x0000000074670000-0x0000000074D5E000-memory.dmp

Filesize
6.9MB

Download
memory/1996-3-0x0000000000480000-0x000000000049E000-memory.dmp

Filesize
120KB

Download
memory/1996-4-0x000000007467E000-0x000000007467F000-memory.dmp

Filesize
4KB

Download
memory/1996-5-0x0000000074670000-0x0000000074D5E000-memory.dmp

Filesize
6.9MB

Download
memory/1996-6-0x0000000005C80000-0x0000000005D40000-memory.dmp

Filesize
768KB

Download
memory/1996-38-0x0000000074670000-0x0000000074D5E000-memory.dmp

Filesize
6.9MB

Download
memory/2912-20-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2912-26-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2912-32-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2912-24-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2912-31-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2912-22-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2912-36-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2912-18-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2912-28-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2912-14-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2912-37-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2912-33-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2912-16-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2912-42-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2912-43-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2912-45-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2912-30-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2912-54-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2912-55-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2912-63-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2912-62-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2912-71-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2912-70-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads