remcos | 96fc3f17433553b27cbf2e96329e524eaa04f7cd2e3ced0b34a0a57520b69914

General

Target

96fc3f17433553b27cbf2e96329e524eaa04f7cd2e3ced0b34a0a57520b69914.exe
Size

893KB
MD5

713d5d355897713dedd6ad842803c318
SHA1

04d95dfa3a448e1bc0ea8538d99d00768493103e
SHA256

96fc3f17433553b27cbf2e96329e524eaa04f7cd2e3ced0b34a0a57520b69914
SHA512

b5ea9005a4293b2cfea9e1f7c3b8fd3f6783816bc500640c19a632c28e85ea9797bc6fbc7a2237dbf17219e3dbebf59cc5a77164b74fc2cf18bacfd3be0777af
SSDEEP

12288:Jp+rgRNyA55IxJ+feDOa9rZj5XqkJD0QrOod7XxlW91RRzwAY3z7:JpugRNJI1D39dlfGQrFUxwAez7

Score

10^/10

remcos host discovery persistence rat spyware stealer

Malware Config

Extracted

Family

remcos

Version

1.7 Pro

Botnet

Host

C2

213.183.58.19:4000

Attributes

audio_folder
audio
audio_path
%AppData%
audio_record_time
5
connect_delay
0
connect_interval
5
copy_file
remcos.exe
copy_folder
remcos
delete_file
false
hide_file
false
hide_keylog_file
true
install_flag
false
install_path
%AppData%
keylog_crypt
true
keylog_file
read.dat
keylog_flag
false
keylog_folder
CastC
keylog_path
%AppData%
mouse_option
false
mutex
remcos_sccafsoidz
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screens
screenshot_path
%AppData%
screenshot_time
1
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

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-1-5-21-1279544337-3716153908-718418795-1000\Control Panel\International\Geo\Nation	96fc3f17433553b27cbf2e96329e524eaa04f7cd2e3ced0b34a0a57520b69914.exe

Executes dropped EXE 2 IoCs

pid	Process
1004	sbietrcl.exe
4972	sbietrcl.exe

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1279544337-3716153908-718418795-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe"	96fc3f17433553b27cbf2e96329e524eaa04f7cd2e3ced0b34a0a57520b69914.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1004 set thread context of 4972	1004	sbietrcl.exe	94

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	96fc3f17433553b27cbf2e96329e524eaa04f7cd2e3ced0b34a0a57520b69914.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sbietrcl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sbietrcl.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
260	96fc3f17433553b27cbf2e96329e524eaa04f7cd2e3ced0b34a0a57520b69914.exe
260	96fc3f17433553b27cbf2e96329e524eaa04f7cd2e3ced0b34a0a57520b69914.exe
260	96fc3f17433553b27cbf2e96329e524eaa04f7cd2e3ced0b34a0a57520b69914.exe
260	96fc3f17433553b27cbf2e96329e524eaa04f7cd2e3ced0b34a0a57520b69914.exe
260	96fc3f17433553b27cbf2e96329e524eaa04f7cd2e3ced0b34a0a57520b69914.exe
260	96fc3f17433553b27cbf2e96329e524eaa04f7cd2e3ced0b34a0a57520b69914.exe
1004	sbietrcl.exe
1004	sbietrcl.exe
1004	sbietrcl.exe
1004	sbietrcl.exe
1004	sbietrcl.exe
1004	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	260	96fc3f17433553b27cbf2e96329e524eaa04f7cd2e3ced0b34a0a57520b69914.exe
Token: SeDebugPrivilege	1004	sbietrcl.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4972	sbietrcl.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 260 wrote to memory of 1004	260	96fc3f17433553b27cbf2e96329e524eaa04f7cd2e3ced0b34a0a57520b69914.exe	92
PID 260 wrote to memory of 1004	260	96fc3f17433553b27cbf2e96329e524eaa04f7cd2e3ced0b34a0a57520b69914.exe	92
PID 260 wrote to memory of 1004	260	96fc3f17433553b27cbf2e96329e524eaa04f7cd2e3ced0b34a0a57520b69914.exe	92
PID 1004 wrote to memory of 4972	1004	sbietrcl.exe	94
PID 1004 wrote to memory of 4972	1004	sbietrcl.exe	94
PID 1004 wrote to memory of 4972	1004	sbietrcl.exe	94
PID 1004 wrote to memory of 4972	1004	sbietrcl.exe	94
PID 1004 wrote to memory of 4972	1004	sbietrcl.exe	94
PID 1004 wrote to memory of 4972	1004	sbietrcl.exe	94
PID 1004 wrote to memory of 4972	1004	sbietrcl.exe	94
PID 1004 wrote to memory of 4972	1004	sbietrcl.exe	94
PID 1004 wrote to memory of 4972	1004	sbietrcl.exe	94

C:\Users\Admin\AppData\Local\Temp\96fc3f17433553b27cbf2e96329e524eaa04f7cd2e3ced0b34a0a57520b69914.exe
"C:\Users\Admin\AppData\Local\Temp\96fc3f17433553b27cbf2e96329e524eaa04f7cd2e3ced0b34a0a57520b69914.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:260
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1004
- - C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    PID:4972

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe

Filesize
902KB

MD5
46a59e835a31c4a3e3889ce761752fd2

SHA1
864909ff24bdced37eb948eaa1669bee54f5dc24

SHA256
f2821347aed355b9bc2ecd08be0e46dc5db0318f1c0d5f5b8b74299edc0d0270

SHA512
cc79c32b5f1d16a6433df5cc1f39f780fd1615f0420dad3dfa06485e5531a55e89ca414991d46f58412786ee4f048e8ae61f1ec7184a6c22396c57740a07ca2c

Download Submit
memory/260-0-0x0000000075052000-0x0000000075053000-memory.dmp

Filesize
4KB

Download
memory/260-1-0x0000000075050000-0x0000000075601000-memory.dmp

Filesize
5.7MB

Download
memory/260-2-0x0000000075050000-0x0000000075601000-memory.dmp

Filesize
5.7MB

Download
memory/260-5-0x0000000075050000-0x0000000075601000-memory.dmp

Filesize
5.7MB

Download
memory/260-6-0x0000000075050000-0x0000000075601000-memory.dmp

Filesize
5.7MB

Download
memory/260-18-0x0000000075052000-0x0000000075053000-memory.dmp

Filesize
4KB

Download
memory/260-19-0x0000000075050000-0x0000000075601000-memory.dmp

Filesize
5.7MB

Download
memory/260-29-0x0000000075050000-0x0000000075601000-memory.dmp

Filesize
5.7MB

Download
memory/1004-32-0x0000000075050000-0x0000000075601000-memory.dmp

Filesize
5.7MB

Download
memory/1004-31-0x0000000075050000-0x0000000075601000-memory.dmp

Filesize
5.7MB

Download
memory/1004-33-0x0000000075050000-0x0000000075601000-memory.dmp

Filesize
5.7MB

Download
memory/1004-35-0x0000000075050000-0x0000000075601000-memory.dmp

Filesize
5.7MB

Download
memory/1004-34-0x0000000075050000-0x0000000075601000-memory.dmp

Filesize
5.7MB

Download
memory/1004-47-0x0000000075050000-0x0000000075601000-memory.dmp

Filesize
5.7MB

Download
memory/4972-36-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4972-39-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4972-46-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4972-44-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4972-43-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4972-40-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4972-50-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads