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

Malware Config

Extracted

Family

remcos

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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	48636ac6e9bd609bc8f2bbfe157084dd91acc90da6153f8a544a70a24e53a543.exe

Executes dropped EXE 2 IoCs

pid	Process
3676	sbietrcl.exe
2504	sbietrcl.exe

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-1-5-21-3442511616-637977696-3186306149-1000\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 3676 set thread context of 2504	3676	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 2 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

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
2164	48636ac6e9bd609bc8f2bbfe157084dd91acc90da6153f8a544a70a24e53a543.exe
2164	48636ac6e9bd609bc8f2bbfe157084dd91acc90da6153f8a544a70a24e53a543.exe
2164	48636ac6e9bd609bc8f2bbfe157084dd91acc90da6153f8a544a70a24e53a543.exe
2164	48636ac6e9bd609bc8f2bbfe157084dd91acc90da6153f8a544a70a24e53a543.exe
2164	48636ac6e9bd609bc8f2bbfe157084dd91acc90da6153f8a544a70a24e53a543.exe
2164	48636ac6e9bd609bc8f2bbfe157084dd91acc90da6153f8a544a70a24e53a543.exe
3676	sbietrcl.exe
3676	sbietrcl.exe
3676	sbietrcl.exe
3676	sbietrcl.exe
3676	sbietrcl.exe
3676	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2164	48636ac6e9bd609bc8f2bbfe157084dd91acc90da6153f8a544a70a24e53a543.exe
Token: SeDebugPrivilege	3676	sbietrcl.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2164 wrote to memory of 3676	2164	48636ac6e9bd609bc8f2bbfe157084dd91acc90da6153f8a544a70a24e53a543.exe	82
PID 2164 wrote to memory of 3676	2164	48636ac6e9bd609bc8f2bbfe157084dd91acc90da6153f8a544a70a24e53a543.exe	82
PID 2164 wrote to memory of 3676	2164	48636ac6e9bd609bc8f2bbfe157084dd91acc90da6153f8a544a70a24e53a543.exe	82
PID 3676 wrote to memory of 2504	3676	sbietrcl.exe	83
PID 3676 wrote to memory of 2504	3676	sbietrcl.exe	83
PID 3676 wrote to memory of 2504	3676	sbietrcl.exe	83
PID 3676 wrote to memory of 2504	3676	sbietrcl.exe	83
PID 3676 wrote to memory of 2504	3676	sbietrcl.exe	83
PID 3676 wrote to memory of 2504	3676	sbietrcl.exe	83
PID 3676 wrote to memory of 2504	3676	sbietrcl.exe	83
PID 3676 wrote to memory of 2504	3676	sbietrcl.exe	83
PID 3676 wrote to memory of 2504	3676	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:2164
- 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:3676
- - 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:2504

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

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

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/2164-19-0x0000000074DE0000-0x0000000075391000-memory.dmp

Filesize
5.7MB

Download
memory/2164-30-0x0000000074DE0000-0x0000000075391000-memory.dmp

Filesize
5.7MB

Download
memory/2164-5-0x0000000074DE0000-0x0000000075391000-memory.dmp

Filesize
5.7MB

Download
memory/2164-6-0x0000000074DE0000-0x0000000075391000-memory.dmp

Filesize
5.7MB

Download
memory/2164-18-0x0000000074DE2000-0x0000000074DE3000-memory.dmp

Filesize
4KB

Download
memory/2164-0-0x0000000074DE2000-0x0000000074DE3000-memory.dmp

Filesize
4KB

Download
memory/2164-1-0x0000000074DE0000-0x0000000075391000-memory.dmp

Filesize
5.7MB

Download
memory/2164-2-0x0000000074DE0000-0x0000000075391000-memory.dmp

Filesize
5.7MB

Download
memory/2504-36-0x0000000000820000-0x0000000000837000-memory.dmp

Filesize
92KB

Download
memory/3676-31-0x0000000074DE0000-0x0000000075391000-memory.dmp

Filesize
5.7MB

Download
memory/3676-32-0x0000000074DE0000-0x0000000075391000-memory.dmp

Filesize
5.7MB

Download
memory/3676-33-0x0000000074DE0000-0x0000000075391000-memory.dmp

Filesize
5.7MB

Download
memory/3676-34-0x0000000074DE0000-0x0000000075391000-memory.dmp

Filesize
5.7MB

Download
memory/3676-40-0x0000000074DE0000-0x0000000075391000-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