remcos | 4f168264877cc440fc01894809f1512ac35a5785792a8c8c42cb33d4abf3124e

General

Target

4f168264877cc440fc01894809f1512ac35a5785792a8c8c42cb33d4abf3124e.exe
Size

1.9MB
MD5

d7c4a8dd324ae3012864217758dba9cc
SHA1

b87e3c1f54c5faed13889c9993e40942fcb5f528
SHA256

4f168264877cc440fc01894809f1512ac35a5785792a8c8c42cb33d4abf3124e
SHA512

177b3d85e6308779e344085dc8231e707baebeb2ba8e3a8e1c353dfc5cfe04d44de7e45522f245a7c7ec961e146b7a01f7d38343a0cc6b04c404517d0a12e1cd
SSDEEP

24576:aD39dlfGQrFUspugRNJI2DJnUw9W/j+BeKJWqwH6jvO:aF+QrFUBgq25eKu6jvO

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	4f168264877cc440fc01894809f1512ac35a5785792a8c8c42cb33d4abf3124e.exe

Executes dropped EXE 4 IoCs

pid	Process
4844	sbietrcl.exe
4032	sbietrcl.exe
4756	sbietrcl.exe
5652	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"	4f168264877cc440fc01894809f1512ac35a5785792a8c8c42cb33d4abf3124e.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4844 set thread context of 4756	4844	sbietrcl.exe	98
PID 4032 set thread context of 5652	4032	sbietrcl.exe	99

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	sbietrcl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sbietrcl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sbietrcl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4f168264877cc440fc01894809f1512ac35a5785792a8c8c42cb33d4abf3124e.exe

Suspicious behavior: EnumeratesProcesses 18 IoCs

pid	Process
5688	4f168264877cc440fc01894809f1512ac35a5785792a8c8c42cb33d4abf3124e.exe
5688	4f168264877cc440fc01894809f1512ac35a5785792a8c8c42cb33d4abf3124e.exe
5688	4f168264877cc440fc01894809f1512ac35a5785792a8c8c42cb33d4abf3124e.exe
5688	4f168264877cc440fc01894809f1512ac35a5785792a8c8c42cb33d4abf3124e.exe
5688	4f168264877cc440fc01894809f1512ac35a5785792a8c8c42cb33d4abf3124e.exe
5688	4f168264877cc440fc01894809f1512ac35a5785792a8c8c42cb33d4abf3124e.exe
4844	sbietrcl.exe
4844	sbietrcl.exe
4844	sbietrcl.exe
4844	sbietrcl.exe
4844	sbietrcl.exe
4844	sbietrcl.exe
4032	sbietrcl.exe
4032	sbietrcl.exe
4032	sbietrcl.exe
4032	sbietrcl.exe
4032	sbietrcl.exe
4032	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	5688	4f168264877cc440fc01894809f1512ac35a5785792a8c8c42cb33d4abf3124e.exe
Token: SeDebugPrivilege	4844	sbietrcl.exe
Token: SeDebugPrivilege	4032	sbietrcl.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4756	sbietrcl.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 5028 wrote to memory of 4844	5028	cmd.exe	96
PID 5028 wrote to memory of 4844	5028	cmd.exe	96
PID 5028 wrote to memory of 4844	5028	cmd.exe	96
PID 5688 wrote to memory of 4032	5688	4f168264877cc440fc01894809f1512ac35a5785792a8c8c42cb33d4abf3124e.exe	97
PID 5688 wrote to memory of 4032	5688	4f168264877cc440fc01894809f1512ac35a5785792a8c8c42cb33d4abf3124e.exe	97
PID 5688 wrote to memory of 4032	5688	4f168264877cc440fc01894809f1512ac35a5785792a8c8c42cb33d4abf3124e.exe	97
PID 4844 wrote to memory of 4756	4844	sbietrcl.exe	98
PID 4844 wrote to memory of 4756	4844	sbietrcl.exe	98
PID 4844 wrote to memory of 4756	4844	sbietrcl.exe	98
PID 4844 wrote to memory of 4756	4844	sbietrcl.exe	98
PID 4844 wrote to memory of 4756	4844	sbietrcl.exe	98
PID 4844 wrote to memory of 4756	4844	sbietrcl.exe	98
PID 4844 wrote to memory of 4756	4844	sbietrcl.exe	98
PID 4844 wrote to memory of 4756	4844	sbietrcl.exe	98
PID 4844 wrote to memory of 4756	4844	sbietrcl.exe	98
PID 4032 wrote to memory of 5652	4032	sbietrcl.exe	99
PID 4032 wrote to memory of 5652	4032	sbietrcl.exe	99
PID 4032 wrote to memory of 5652	4032	sbietrcl.exe	99
PID 4032 wrote to memory of 5652	4032	sbietrcl.exe	99
PID 4032 wrote to memory of 5652	4032	sbietrcl.exe	99
PID 4032 wrote to memory of 5652	4032	sbietrcl.exe	99
PID 4032 wrote to memory of 5652	4032	sbietrcl.exe	99
PID 4032 wrote to memory of 5652	4032	sbietrcl.exe	99
PID 4032 wrote to memory of 5652	4032	sbietrcl.exe	99

C:\Users\Admin\AppData\Local\Temp\4f168264877cc440fc01894809f1512ac35a5785792a8c8c42cb33d4abf3124e.exe
"C:\Users\Admin\AppData\Local\Temp\4f168264877cc440fc01894809f1512ac35a5785792a8c8c42cb33d4abf3124e.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:5688
- 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:4032
- - C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe"
    3⤵
    - Executes dropped EXE
    PID:5652

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe
1⤵
- Suspicious use of WriteProcessMemory
PID:5028
- 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:4844
- - 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:4756

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\Local\Microsoft\CLR_v2.0_32\UsageLogs\sbietrcl.exe.log

Filesize
400B

MD5
0a9b4592cd49c3c21f6767c2dabda92f

SHA1
f534297527ae5ccc0ecb2221ddeb8e58daeb8b74

SHA256
c7effe9cb81a70d738dee863991afefab040290d4c4b78b4202383bcb9f88fcd

SHA512
6b878df474e5bbfb8e9e265f15a76560c2ef151dcebc6388c82d7f6f86ffaf83f5ade5a09f1842e493cb6c8fd63b0b88d088c728fd725f7139f965a5ee332307

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

Filesize
1.9MB

MD5
9f1a7c33fd9daf77cb6a724e6e7782c1

SHA1
6291eab744c8af060a8f309454f0ec28a4905e1e

SHA256
5a250501d13d4b6644cefa3eade210b37fd827651d45154b5386ec3e3ae94a29

SHA512
700844cc715738c2c3fe21fcf670bb8e7d3ef3c0b99eb939b463e4920cf01f801f266cf26bc44a90484654a076713da83b98e445a10feb6c361adf5638662503

Download Submit
memory/4032-44-0x00000000746E0000-0x0000000074C91000-memory.dmp

Filesize
5.7MB

Download
memory/4032-29-0x00000000746E0000-0x0000000074C91000-memory.dmp

Filesize
5.7MB

Download
memory/4756-37-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4756-30-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4756-32-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4756-36-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4756-33-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4844-39-0x00000000746E0000-0x0000000074C91000-memory.dmp

Filesize
5.7MB

Download
memory/4844-24-0x00000000746E0000-0x0000000074C91000-memory.dmp

Filesize
5.7MB

Download
memory/4844-27-0x00000000746E0000-0x0000000074C91000-memory.dmp

Filesize
5.7MB

Download
memory/4844-23-0x00000000746E0000-0x0000000074C91000-memory.dmp

Filesize
5.7MB

Download
memory/5688-18-0x00000000746E2000-0x00000000746E3000-memory.dmp

Filesize
4KB

Download
memory/5688-28-0x00000000746E0000-0x0000000074C91000-memory.dmp

Filesize
5.7MB

Download
memory/5688-26-0x00000000746E0000-0x0000000074C91000-memory.dmp

Filesize
5.7MB

Download
memory/5688-19-0x00000000746E0000-0x0000000074C91000-memory.dmp

Filesize
5.7MB

Download
memory/5688-0-0x00000000746E2000-0x00000000746E3000-memory.dmp

Filesize
4KB

Download
memory/5688-6-0x00000000746E0000-0x0000000074C91000-memory.dmp

Filesize
5.7MB

Download
memory/5688-5-0x00000000746E0000-0x0000000074C91000-memory.dmp

Filesize
5.7MB

Download
memory/5688-2-0x00000000746E0000-0x0000000074C91000-memory.dmp

Filesize
5.7MB

Download
memory/5688-1-0x00000000746E0000-0x0000000074C91000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads