remcos | 48636ac6e9bd609bc8f2bbfe157084dd91acc90da6153f8a544a70a24e53a543

General

Target

48636ac6e9bd609bc8f2bbfe157084dd91acc90da6153f8a544a70a24e53a543.exe
Size

1.5MB
MD5

a8bb2b3d9ea6cef43fd1b023d374de4b
SHA1

099988309812569af57af98437c54e840d0283b9
SHA256

48636ac6e9bd609bc8f2bbfe157084dd91acc90da6153f8a544a70a24e53a543
SHA512

96e2ae00e65f6a256f82a3dd4fd4a89badaf262c4ed0a4333441dcc106fb877b3a9a12bad8836036f17e70408e990375fe186cf833fa197c81a1f99f761f991c
SSDEEP

24576:LD39dlfGQrFUspugRNJI2DJnUw9W/j+BeKJdD:LF+QrFUBgq25eKDD

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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	48636ac6e9bd609bc8f2bbfe157084dd91acc90da6153f8a544a70a24e53a543.exe

Executes dropped EXE 2 IoCs

pid	Process
1816	sbietrcl.exe
2152	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-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe"	48636ac6e9bd609bc8f2bbfe157084dd91acc90da6153f8a544a70a24e53a543.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1816 set thread context of 2152	1816	sbietrcl.exe	83

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	48636ac6e9bd609bc8f2bbfe157084dd91acc90da6153f8a544a70a24e53a543.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
4360	48636ac6e9bd609bc8f2bbfe157084dd91acc90da6153f8a544a70a24e53a543.exe
4360	48636ac6e9bd609bc8f2bbfe157084dd91acc90da6153f8a544a70a24e53a543.exe
4360	48636ac6e9bd609bc8f2bbfe157084dd91acc90da6153f8a544a70a24e53a543.exe
4360	48636ac6e9bd609bc8f2bbfe157084dd91acc90da6153f8a544a70a24e53a543.exe
4360	48636ac6e9bd609bc8f2bbfe157084dd91acc90da6153f8a544a70a24e53a543.exe
4360	48636ac6e9bd609bc8f2bbfe157084dd91acc90da6153f8a544a70a24e53a543.exe
1816	sbietrcl.exe
1816	sbietrcl.exe
1816	sbietrcl.exe
1816	sbietrcl.exe
1816	sbietrcl.exe
1816	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4360	48636ac6e9bd609bc8f2bbfe157084dd91acc90da6153f8a544a70a24e53a543.exe
Token: SeDebugPrivilege	1816	sbietrcl.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2152	sbietrcl.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4360 wrote to memory of 1816	4360	48636ac6e9bd609bc8f2bbfe157084dd91acc90da6153f8a544a70a24e53a543.exe	82
PID 4360 wrote to memory of 1816	4360	48636ac6e9bd609bc8f2bbfe157084dd91acc90da6153f8a544a70a24e53a543.exe	82
PID 4360 wrote to memory of 1816	4360	48636ac6e9bd609bc8f2bbfe157084dd91acc90da6153f8a544a70a24e53a543.exe	82
PID 1816 wrote to memory of 2152	1816	sbietrcl.exe	83
PID 1816 wrote to memory of 2152	1816	sbietrcl.exe	83
PID 1816 wrote to memory of 2152	1816	sbietrcl.exe	83
PID 1816 wrote to memory of 2152	1816	sbietrcl.exe	83
PID 1816 wrote to memory of 2152	1816	sbietrcl.exe	83
PID 1816 wrote to memory of 2152	1816	sbietrcl.exe	83
PID 1816 wrote to memory of 2152	1816	sbietrcl.exe	83
PID 1816 wrote to memory of 2152	1816	sbietrcl.exe	83
PID 1816 wrote to memory of 2152	1816	sbietrcl.exe	83

C:\Users\Admin\AppData\Local\Temp\48636ac6e9bd609bc8f2bbfe157084dd91acc90da6153f8a544a70a24e53a543.exe
"C:\Users\Admin\AppData\Local\Temp\48636ac6e9bd609bc8f2bbfe157084dd91acc90da6153f8a544a70a24e53a543.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:4360
- 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:1816
- - 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:2152

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
1.5MB

MD5
fd450a8ab0ba892d838df96410f5d8d5

SHA1
4c58ab68fb1a152746648f1c6364d46e4ad548c0

SHA256
ac8e31f936284d2fcded6e8771254b4481570c236b5ef9f58db941c548dc0e60

SHA512
be3a412ba5cfe691db9edd3743f72b4cc6328dd1db9f9b8db9c98a3ea663553b196f09391749271228f4598a08b2e3167f8389aaad71245b4ae178cf9c2b6ee4

Download Submit
memory/1816-47-0x0000000074BE0000-0x0000000075191000-memory.dmp

Filesize
5.7MB

Download
memory/1816-35-0x0000000074BE0000-0x0000000075191000-memory.dmp

Filesize
5.7MB

Download
memory/1816-34-0x0000000074BE0000-0x0000000075191000-memory.dmp

Filesize
5.7MB

Download
memory/1816-33-0x0000000074BE0000-0x0000000075191000-memory.dmp

Filesize
5.7MB

Download
memory/1816-32-0x0000000074BE0000-0x0000000075191000-memory.dmp

Filesize
5.7MB

Download
memory/2152-39-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2152-36-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2152-50-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2152-46-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2152-40-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2152-45-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2152-43-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4360-18-0x0000000074BE2000-0x0000000074BE3000-memory.dmp

Filesize
4KB

Download
memory/4360-2-0x0000000074BE0000-0x0000000075191000-memory.dmp

Filesize
5.7MB

Download
memory/4360-0-0x0000000074BE2000-0x0000000074BE3000-memory.dmp

Filesize
4KB

Download
memory/4360-5-0x0000000074BE0000-0x0000000075191000-memory.dmp

Filesize
5.7MB

Download
memory/4360-6-0x0000000074BE0000-0x0000000075191000-memory.dmp

Filesize
5.7MB

Download
memory/4360-20-0x0000000074BE0000-0x0000000075191000-memory.dmp

Filesize
5.7MB

Download
memory/4360-31-0x0000000074BE0000-0x0000000075191000-memory.dmp

Filesize
5.7MB

Download
memory/4360-1-0x0000000074BE0000-0x0000000075191000-memory.dmp

Filesize
5.7MB

Download
memory/4360-19-0x0000000074BE0000-0x0000000075191000-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