remcos | d6c69f2a5e78ae36b23f18cda3188b1df50a2e7cc1bbd9ae79008c9a070ff8b6

General

Target

d6c69f2a5e78ae36b23f18cda3188b1df50a2e7cc1bbd9ae79008c9a070ff8b6.exe
Size

2.2MB
MD5

7b2f2592d4c6b19dd8ab8f78778cde9b
SHA1

29d02c3eb53e75ca642e018ceb938aae8b4e7e83
SHA256

d6c69f2a5e78ae36b23f18cda3188b1df50a2e7cc1bbd9ae79008c9a070ff8b6
SHA512

0d86779afac9727c9851cdb4012ad49c4ee19fee09f203aa62f152cfaf9938097146291c1af1a1d2e281096a2012d19ded13d5641016c2fe3827fdd973bef2c6
SSDEEP

24576:XD39v74lfGQrFUspugRNJI2DJ53J/J/L5dJPjYF49rO/L:Xp7E+QrFUBgq2U

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

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-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation	d6c69f2a5e78ae36b23f18cda3188b1df50a2e7cc1bbd9ae79008c9a070ff8b6.exe

Executes dropped EXE 2 IoCs

pid	Process
796	sbietrcl.exe
3980	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-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe"	d6c69f2a5e78ae36b23f18cda3188b1df50a2e7cc1bbd9ae79008c9a070ff8b6.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 796 set thread context of 3980	796	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 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	sbietrcl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d6c69f2a5e78ae36b23f18cda3188b1df50a2e7cc1bbd9ae79008c9a070ff8b6.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
4860	d6c69f2a5e78ae36b23f18cda3188b1df50a2e7cc1bbd9ae79008c9a070ff8b6.exe
4860	d6c69f2a5e78ae36b23f18cda3188b1df50a2e7cc1bbd9ae79008c9a070ff8b6.exe
4860	d6c69f2a5e78ae36b23f18cda3188b1df50a2e7cc1bbd9ae79008c9a070ff8b6.exe
4860	d6c69f2a5e78ae36b23f18cda3188b1df50a2e7cc1bbd9ae79008c9a070ff8b6.exe
4860	d6c69f2a5e78ae36b23f18cda3188b1df50a2e7cc1bbd9ae79008c9a070ff8b6.exe
4860	d6c69f2a5e78ae36b23f18cda3188b1df50a2e7cc1bbd9ae79008c9a070ff8b6.exe
796	sbietrcl.exe
796	sbietrcl.exe
796	sbietrcl.exe
796	sbietrcl.exe
796	sbietrcl.exe
796	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4860	d6c69f2a5e78ae36b23f18cda3188b1df50a2e7cc1bbd9ae79008c9a070ff8b6.exe
Token: SeDebugPrivilege	796	sbietrcl.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4860 wrote to memory of 796	4860	d6c69f2a5e78ae36b23f18cda3188b1df50a2e7cc1bbd9ae79008c9a070ff8b6.exe	91
PID 4860 wrote to memory of 796	4860	d6c69f2a5e78ae36b23f18cda3188b1df50a2e7cc1bbd9ae79008c9a070ff8b6.exe	91
PID 4860 wrote to memory of 796	4860	d6c69f2a5e78ae36b23f18cda3188b1df50a2e7cc1bbd9ae79008c9a070ff8b6.exe	91
PID 796 wrote to memory of 3980	796	sbietrcl.exe	94
PID 796 wrote to memory of 3980	796	sbietrcl.exe	94
PID 796 wrote to memory of 3980	796	sbietrcl.exe	94
PID 796 wrote to memory of 3980	796	sbietrcl.exe	94
PID 796 wrote to memory of 3980	796	sbietrcl.exe	94
PID 796 wrote to memory of 3980	796	sbietrcl.exe	94
PID 796 wrote to memory of 3980	796	sbietrcl.exe	94
PID 796 wrote to memory of 3980	796	sbietrcl.exe	94
PID 796 wrote to memory of 3980	796	sbietrcl.exe	94

C:\Users\Admin\AppData\Local\Temp\d6c69f2a5e78ae36b23f18cda3188b1df50a2e7cc1bbd9ae79008c9a070ff8b6.exe
"C:\Users\Admin\AppData\Local\Temp\d6c69f2a5e78ae36b23f18cda3188b1df50a2e7cc1bbd9ae79008c9a070ff8b6.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:4860
- 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:796
- - 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:3980

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
2.2MB

MD5
e4ba5bdb3a2cc986931363d8aae2f432

SHA1
83cb2594b178817c19d1abe9352b5914084346be

SHA256
7fa8259339d7886ae7af54e5af9dd66a78cbe80c9f7012e035bde80bd5487242

SHA512
926de77cb314d8a3d1347e06b5eeddd0ebe283f5c2136952c2bc7658ede9f5df4394927e512ddc1f0efd2b56ca17da87b1b6077a1ca2329920ece946b6e9f1f8

Download Submit
memory/796-30-0x0000000074A70000-0x0000000075021000-memory.dmp

Filesize
5.7MB

Download
memory/796-40-0x0000000074A70000-0x0000000075021000-memory.dmp

Filesize
5.7MB

Download
memory/796-33-0x0000000074A70000-0x0000000075021000-memory.dmp

Filesize
5.7MB

Download
memory/796-32-0x0000000074A70000-0x0000000075021000-memory.dmp

Filesize
5.7MB

Download
memory/796-31-0x0000000074A70000-0x0000000075021000-memory.dmp

Filesize
5.7MB

Download
memory/3980-36-0x0000000000610000-0x0000000000627000-memory.dmp

Filesize
92KB

Download
memory/4860-5-0x0000000074A70000-0x0000000075021000-memory.dmp

Filesize
5.7MB

Download
memory/4860-18-0x0000000074A70000-0x0000000075021000-memory.dmp

Filesize
5.7MB

Download
memory/4860-29-0x0000000074A70000-0x0000000075021000-memory.dmp

Filesize
5.7MB

Download
memory/4860-17-0x0000000074A72000-0x0000000074A73000-memory.dmp

Filesize
4KB

Download
memory/4860-0-0x0000000074A72000-0x0000000074A73000-memory.dmp

Filesize
4KB

Download
memory/4860-2-0x0000000074A70000-0x0000000075021000-memory.dmp

Filesize
5.7MB

Download
memory/4860-1-0x0000000074A70000-0x0000000075021000-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