remcos | 2d3ddf1260de8f265cde9976547c500417fcd6fb3e46725e49d9b54f57d2ddb0

General

Target

2d3ddf1260de8f265cde9976547c500417fcd6fb3e46725e49d9b54f57d2ddb0.exe
Size

982KB
MD5

b2fbf1ffcdef4d599457b730f60e6929
SHA1

1bf3ae3e5805937912463859762c072e3cb19705
SHA256

2d3ddf1260de8f265cde9976547c500417fcd6fb3e46725e49d9b54f57d2ddb0
SHA512

1624b13075f37981ced7402e027f988212627f94d51fda5ae159a5dbb2ec08d0a60ce91fe36aac624cf2981177bd4be2efa65645fbcae09fa14b8a9eb7a2b6d1
SSDEEP

12288:Qp+rgRNyA55IxJ+feDOa9rZj5XqkJD0QrOod7XxlW91RRzwAY3An7:QpugRNJI1D39dlfGQrFUxwAeAn7

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-1-5-21-869607583-2483572573-2297019986-1000\Control Panel\International\Geo\Nation	2d3ddf1260de8f265cde9976547c500417fcd6fb3e46725e49d9b54f57d2ddb0.exe

Executes dropped EXE 4 IoCs

pid	Process
4652	sbietrcl.exe
5060	sbietrcl.exe
4836	sbietrcl.exe
3668	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-1-5-21-869607583-2483572573-2297019986-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe"	2d3ddf1260de8f265cde9976547c500417fcd6fb3e46725e49d9b54f57d2ddb0.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4652 set thread context of 4836	4652	sbietrcl.exe	105
PID 5060 set thread context of 3668	5060	sbietrcl.exe	106

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	2d3ddf1260de8f265cde9976547c500417fcd6fb3e46725e49d9b54f57d2ddb0.exe

Suspicious behavior: EnumeratesProcesses 18 IoCs

pid	Process
1880	2d3ddf1260de8f265cde9976547c500417fcd6fb3e46725e49d9b54f57d2ddb0.exe
1880	2d3ddf1260de8f265cde9976547c500417fcd6fb3e46725e49d9b54f57d2ddb0.exe
1880	2d3ddf1260de8f265cde9976547c500417fcd6fb3e46725e49d9b54f57d2ddb0.exe
1880	2d3ddf1260de8f265cde9976547c500417fcd6fb3e46725e49d9b54f57d2ddb0.exe
1880	2d3ddf1260de8f265cde9976547c500417fcd6fb3e46725e49d9b54f57d2ddb0.exe
1880	2d3ddf1260de8f265cde9976547c500417fcd6fb3e46725e49d9b54f57d2ddb0.exe
4652	sbietrcl.exe
4652	sbietrcl.exe
4652	sbietrcl.exe
4652	sbietrcl.exe
4652	sbietrcl.exe
4652	sbietrcl.exe
5060	sbietrcl.exe
5060	sbietrcl.exe
5060	sbietrcl.exe
5060	sbietrcl.exe
5060	sbietrcl.exe
5060	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1880	2d3ddf1260de8f265cde9976547c500417fcd6fb3e46725e49d9b54f57d2ddb0.exe
Token: SeDebugPrivilege	4652	sbietrcl.exe
Token: SeDebugPrivilege	5060	sbietrcl.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3668	sbietrcl.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 4108 wrote to memory of 4652	4108	cmd.exe	101
PID 4108 wrote to memory of 4652	4108	cmd.exe	101
PID 4108 wrote to memory of 4652	4108	cmd.exe	101
PID 1880 wrote to memory of 5060	1880	2d3ddf1260de8f265cde9976547c500417fcd6fb3e46725e49d9b54f57d2ddb0.exe	102
PID 1880 wrote to memory of 5060	1880	2d3ddf1260de8f265cde9976547c500417fcd6fb3e46725e49d9b54f57d2ddb0.exe	102
PID 1880 wrote to memory of 5060	1880	2d3ddf1260de8f265cde9976547c500417fcd6fb3e46725e49d9b54f57d2ddb0.exe	102
PID 4652 wrote to memory of 4836	4652	sbietrcl.exe	105
PID 4652 wrote to memory of 4836	4652	sbietrcl.exe	105
PID 4652 wrote to memory of 4836	4652	sbietrcl.exe	105
PID 4652 wrote to memory of 4836	4652	sbietrcl.exe	105
PID 4652 wrote to memory of 4836	4652	sbietrcl.exe	105
PID 4652 wrote to memory of 4836	4652	sbietrcl.exe	105
PID 4652 wrote to memory of 4836	4652	sbietrcl.exe	105
PID 4652 wrote to memory of 4836	4652	sbietrcl.exe	105
PID 4652 wrote to memory of 4836	4652	sbietrcl.exe	105
PID 5060 wrote to memory of 3668	5060	sbietrcl.exe	106
PID 5060 wrote to memory of 3668	5060	sbietrcl.exe	106
PID 5060 wrote to memory of 3668	5060	sbietrcl.exe	106
PID 5060 wrote to memory of 3668	5060	sbietrcl.exe	106
PID 5060 wrote to memory of 3668	5060	sbietrcl.exe	106
PID 5060 wrote to memory of 3668	5060	sbietrcl.exe	106
PID 5060 wrote to memory of 3668	5060	sbietrcl.exe	106
PID 5060 wrote to memory of 3668	5060	sbietrcl.exe	106
PID 5060 wrote to memory of 3668	5060	sbietrcl.exe	106

C:\Users\Admin\AppData\Local\Temp\2d3ddf1260de8f265cde9976547c500417fcd6fb3e46725e49d9b54f57d2ddb0.exe
"C:\Users\Admin\AppData\Local\Temp\2d3ddf1260de8f265cde9976547c500417fcd6fb3e46725e49d9b54f57d2ddb0.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:1880
- 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:5060
- - 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:3668

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:4108
- 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:4652
- - 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:4836

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
991KB

MD5
245cfb0d2c00fd9333d1224152c44871

SHA1
38f955d696c61496da269b73cd3b7935c1ff0641

SHA256
5aac448df02bf9a0422ffb84c10cae027363c75cf117b5a6c1a77d3d2416bc8d

SHA512
463cf390462e34f67e486d2cdd296dd4fe225db579401955f87a570e11251260220a5ff62bd84944e598177fb103e383c53b3e300282ba953b4ba9e6cc36aaf4

Download Submit
memory/1880-28-0x0000000074E00000-0x00000000753B1000-memory.dmp

Filesize
5.7MB

Download
memory/1880-5-0x0000000074E00000-0x00000000753B1000-memory.dmp

Filesize
5.7MB

Download
memory/1880-6-0x0000000074E00000-0x00000000753B1000-memory.dmp

Filesize
5.7MB

Download
memory/1880-18-0x0000000074E02000-0x0000000074E03000-memory.dmp

Filesize
4KB

Download
memory/1880-19-0x0000000074E00000-0x00000000753B1000-memory.dmp

Filesize
5.7MB

Download
memory/1880-2-0x0000000074E00000-0x00000000753B1000-memory.dmp

Filesize
5.7MB

Download
memory/1880-25-0x0000000074E00000-0x00000000753B1000-memory.dmp

Filesize
5.7MB

Download
memory/1880-1-0x0000000074E00000-0x00000000753B1000-memory.dmp

Filesize
5.7MB

Download
memory/1880-0-0x0000000074E02000-0x0000000074E03000-memory.dmp

Filesize
4KB

Download
memory/3668-34-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3668-36-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3668-40-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3668-38-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3668-42-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4652-26-0x0000000074E00000-0x00000000753B1000-memory.dmp

Filesize
5.7MB

Download
memory/4652-33-0x0000000074E00000-0x00000000753B1000-memory.dmp

Filesize
5.7MB

Download
memory/4652-27-0x0000000074E00000-0x00000000753B1000-memory.dmp

Filesize
5.7MB

Download
memory/5060-30-0x0000000074E00000-0x00000000753B1000-memory.dmp

Filesize
5.7MB

Download
memory/5060-29-0x0000000074E00000-0x00000000753B1000-memory.dmp

Filesize
5.7MB

Download
memory/5060-43-0x0000000074E00000-0x00000000753B1000-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