remcos | d020daee98bb26f87e749c1d27cbfeebbf6e8d97a806b8507a40abf6bb7c00f8

General

Target

d020daee98bb26f87e749c1d27cbfeebbf6e8d97a806b8507a40abf6bb7c00f8N.exe
Size

2.2MB
MD5

57c5592f6f1395bb06bf3f34f977cd40
SHA1

6b1f1ef7559ea159645425989a3c4700d84c0018
SHA256

d020daee98bb26f87e749c1d27cbfeebbf6e8d97a806b8507a40abf6bb7c00f8
SHA512

e99a6eccc95089773aab385c8f66cebaa53cc5ab58fea7a2293adc6e438c0ff7a5e94405cfcb9710fb4fb2acb2b560a66e034dca27db74491a5375b6b8a8f054
SSDEEP

24576:iD39v74lfGQrFUspugRNJI2DJ53J/J/L5dJPjYF4ag/uI:ip7E+QrFUBgq2UI

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

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	d020daee98bb26f87e749c1d27cbfeebbf6e8d97a806b8507a40abf6bb7c00f8N.exe

Executes dropped EXE 2 IoCs

pid	Process
4028	sbietrcl.exe
1900	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"	d020daee98bb26f87e749c1d27cbfeebbf6e8d97a806b8507a40abf6bb7c00f8N.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4028 set thread context of 1900	4028	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	d020daee98bb26f87e749c1d27cbfeebbf6e8d97a806b8507a40abf6bb7c00f8N.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
2420	d020daee98bb26f87e749c1d27cbfeebbf6e8d97a806b8507a40abf6bb7c00f8N.exe
2420	d020daee98bb26f87e749c1d27cbfeebbf6e8d97a806b8507a40abf6bb7c00f8N.exe
2420	d020daee98bb26f87e749c1d27cbfeebbf6e8d97a806b8507a40abf6bb7c00f8N.exe
2420	d020daee98bb26f87e749c1d27cbfeebbf6e8d97a806b8507a40abf6bb7c00f8N.exe
2420	d020daee98bb26f87e749c1d27cbfeebbf6e8d97a806b8507a40abf6bb7c00f8N.exe
2420	d020daee98bb26f87e749c1d27cbfeebbf6e8d97a806b8507a40abf6bb7c00f8N.exe
4028	sbietrcl.exe
4028	sbietrcl.exe
4028	sbietrcl.exe
4028	sbietrcl.exe
4028	sbietrcl.exe
4028	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2420	d020daee98bb26f87e749c1d27cbfeebbf6e8d97a806b8507a40abf6bb7c00f8N.exe
Token: SeDebugPrivilege	4028	sbietrcl.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1900	sbietrcl.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2420 wrote to memory of 4028	2420	d020daee98bb26f87e749c1d27cbfeebbf6e8d97a806b8507a40abf6bb7c00f8N.exe	92
PID 2420 wrote to memory of 4028	2420	d020daee98bb26f87e749c1d27cbfeebbf6e8d97a806b8507a40abf6bb7c00f8N.exe	92
PID 2420 wrote to memory of 4028	2420	d020daee98bb26f87e749c1d27cbfeebbf6e8d97a806b8507a40abf6bb7c00f8N.exe	92
PID 4028 wrote to memory of 1900	4028	sbietrcl.exe	94
PID 4028 wrote to memory of 1900	4028	sbietrcl.exe	94
PID 4028 wrote to memory of 1900	4028	sbietrcl.exe	94
PID 4028 wrote to memory of 1900	4028	sbietrcl.exe	94
PID 4028 wrote to memory of 1900	4028	sbietrcl.exe	94
PID 4028 wrote to memory of 1900	4028	sbietrcl.exe	94
PID 4028 wrote to memory of 1900	4028	sbietrcl.exe	94
PID 4028 wrote to memory of 1900	4028	sbietrcl.exe	94
PID 4028 wrote to memory of 1900	4028	sbietrcl.exe	94

C:\Users\Admin\AppData\Local\Temp\d020daee98bb26f87e749c1d27cbfeebbf6e8d97a806b8507a40abf6bb7c00f8N.exe
"C:\Users\Admin\AppData\Local\Temp\d020daee98bb26f87e749c1d27cbfeebbf6e8d97a806b8507a40abf6bb7c00f8N.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:2420
- 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:4028
- - 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:1900

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
2.2MB

MD5
fb94b6b3dc6beb3e496f20ad12f98b2a

SHA1
948734cabeda165ae0ae33217bd9179b7f17125a

SHA256
ef652094db3177b875b62031f0c687d88236ea96f62291281e775a3b5100d0a3

SHA512
1391407fdad1a2207f1704d96a86edf3f54dbb9c27c179baffbf8c4b830f4a35203ecba44eac3aaf79b74c0b00825c98075b3e52ce05f474162a07e62e9e5176

Download Submit
memory/1900-34-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1900-48-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1900-45-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1900-43-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1900-39-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1900-42-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1900-37-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2420-18-0x0000000074A30000-0x0000000074FE1000-memory.dmp

Filesize
5.7MB

Download
memory/2420-29-0x0000000074A30000-0x0000000074FE1000-memory.dmp

Filesize
5.7MB

Download
memory/2420-0-0x0000000074A32000-0x0000000074A33000-memory.dmp

Filesize
4KB

Download
memory/2420-17-0x0000000074A32000-0x0000000074A33000-memory.dmp

Filesize
4KB

Download
memory/2420-5-0x0000000074A30000-0x0000000074FE1000-memory.dmp

Filesize
5.7MB

Download
memory/2420-4-0x0000000074A30000-0x0000000074FE1000-memory.dmp

Filesize
5.7MB

Download
memory/2420-1-0x0000000074A30000-0x0000000074FE1000-memory.dmp

Filesize
5.7MB

Download
memory/4028-32-0x0000000074A30000-0x0000000074FE1000-memory.dmp

Filesize
5.7MB

Download
memory/4028-33-0x0000000074A30000-0x0000000074FE1000-memory.dmp

Filesize
5.7MB

Download
memory/4028-31-0x0000000074A30000-0x0000000074FE1000-memory.dmp

Filesize
5.7MB

Download
memory/4028-30-0x0000000074A30000-0x0000000074FE1000-memory.dmp

Filesize
5.7MB

Download
memory/4028-44-0x0000000074A30000-0x0000000074FE1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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