remcos | e2ea885f488456059c96c81a4bf58904323ade3f476ec4c717a43ebdb0955aad

General

Target

e2ea885f488456059c96c81a4bf58904323ade3f476ec4c717a43ebdb0955aad.exe
Size

1.8MB
MD5

216efdc601e0cfdf9423dea7a8767143
SHA1

14045825bf5b8db0ac65c7c94ed7c7dfb62f06b1
SHA256

e2ea885f488456059c96c81a4bf58904323ade3f476ec4c717a43ebdb0955aad
SHA512

a5ddc58640925c3bf80a4bd8a97a8f7a4486cf5146fdba480a6023eed5f8c7affd6802ff37224663c18f7ec0acc6a780a3fcced87e2b610907c93ecdf262e762
SSDEEP

24576:AD39v74lfGQrFUspugRNJI2DJ53J/J/L5dJPjoo:Ap7E+QrFUBgq21

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-1-5-21-3342763580-2723508992-2885672917-1000\Control Panel\International\Geo\Nation	e2ea885f488456059c96c81a4bf58904323ade3f476ec4c717a43ebdb0955aad.exe

Executes dropped EXE 2 IoCs

pid	Process
2804	sbietrcl.exe
4892	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-1-5-21-3342763580-2723508992-2885672917-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe"	e2ea885f488456059c96c81a4bf58904323ade3f476ec4c717a43ebdb0955aad.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2804 set thread context of 4892	2804	sbietrcl.exe	95

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	e2ea885f488456059c96c81a4bf58904323ade3f476ec4c717a43ebdb0955aad.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
3116	e2ea885f488456059c96c81a4bf58904323ade3f476ec4c717a43ebdb0955aad.exe
3116	e2ea885f488456059c96c81a4bf58904323ade3f476ec4c717a43ebdb0955aad.exe
3116	e2ea885f488456059c96c81a4bf58904323ade3f476ec4c717a43ebdb0955aad.exe
3116	e2ea885f488456059c96c81a4bf58904323ade3f476ec4c717a43ebdb0955aad.exe
3116	e2ea885f488456059c96c81a4bf58904323ade3f476ec4c717a43ebdb0955aad.exe
3116	e2ea885f488456059c96c81a4bf58904323ade3f476ec4c717a43ebdb0955aad.exe
2804	sbietrcl.exe
2804	sbietrcl.exe
2804	sbietrcl.exe
2804	sbietrcl.exe
2804	sbietrcl.exe
2804	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3116	e2ea885f488456059c96c81a4bf58904323ade3f476ec4c717a43ebdb0955aad.exe
Token: SeDebugPrivilege	2804	sbietrcl.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4892	sbietrcl.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3116 wrote to memory of 2804	3116	e2ea885f488456059c96c81a4bf58904323ade3f476ec4c717a43ebdb0955aad.exe	93
PID 3116 wrote to memory of 2804	3116	e2ea885f488456059c96c81a4bf58904323ade3f476ec4c717a43ebdb0955aad.exe	93
PID 3116 wrote to memory of 2804	3116	e2ea885f488456059c96c81a4bf58904323ade3f476ec4c717a43ebdb0955aad.exe	93
PID 2804 wrote to memory of 4892	2804	sbietrcl.exe	95
PID 2804 wrote to memory of 4892	2804	sbietrcl.exe	95
PID 2804 wrote to memory of 4892	2804	sbietrcl.exe	95
PID 2804 wrote to memory of 4892	2804	sbietrcl.exe	95
PID 2804 wrote to memory of 4892	2804	sbietrcl.exe	95
PID 2804 wrote to memory of 4892	2804	sbietrcl.exe	95
PID 2804 wrote to memory of 4892	2804	sbietrcl.exe	95
PID 2804 wrote to memory of 4892	2804	sbietrcl.exe	95
PID 2804 wrote to memory of 4892	2804	sbietrcl.exe	95

C:\Users\Admin\AppData\Local\Temp\e2ea885f488456059c96c81a4bf58904323ade3f476ec4c717a43ebdb0955aad.exe
"C:\Users\Admin\AppData\Local\Temp\e2ea885f488456059c96c81a4bf58904323ade3f476ec4c717a43ebdb0955aad.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:3116
- 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:2804
- - 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:4892

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
1.8MB

MD5
48cfff2e853cc8da87e2fa01bc2e5b72

SHA1
c882ae39a1b27b610984d351e2cebf1534eafc80

SHA256
e8d1bca8c6f0dc65e448d7667b8e17f00c8cdf6de98175f797f0d929fb1d7a92

SHA512
08a01a5a295b971b997a839504555ebabbf1f4b288335db78339ad1c541ba3a9909679926f96d841993c7b538a61984fdad146c9800f85493e4a35eaf15f97cf

Download Submit
memory/2804-46-0x00000000751F0000-0x00000000757A1000-memory.dmp

Filesize
5.7MB

Download
memory/2804-34-0x00000000751F0000-0x00000000757A1000-memory.dmp

Filesize
5.7MB

Download
memory/2804-33-0x00000000751F0000-0x00000000757A1000-memory.dmp

Filesize
5.7MB

Download
memory/2804-31-0x00000000751F0000-0x00000000757A1000-memory.dmp

Filesize
5.7MB

Download
memory/2804-32-0x00000000751F0000-0x00000000757A1000-memory.dmp

Filesize
5.7MB

Download
memory/3116-18-0x00000000751F2000-0x00000000751F3000-memory.dmp

Filesize
4KB

Download
memory/3116-1-0x00000000751F0000-0x00000000757A1000-memory.dmp

Filesize
5.7MB

Download
memory/3116-30-0x00000000751F0000-0x00000000757A1000-memory.dmp

Filesize
5.7MB

Download
memory/3116-0-0x00000000751F2000-0x00000000751F3000-memory.dmp

Filesize
4KB

Download
memory/3116-6-0x00000000751F0000-0x00000000757A1000-memory.dmp

Filesize
5.7MB

Download
memory/3116-5-0x00000000751F0000-0x00000000757A1000-memory.dmp

Filesize
5.7MB

Download
memory/3116-2-0x00000000751F0000-0x00000000757A1000-memory.dmp

Filesize
5.7MB

Download
memory/3116-19-0x00000000751F0000-0x00000000757A1000-memory.dmp

Filesize
5.7MB

Download
memory/4892-35-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4892-42-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4892-39-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4892-43-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4892-44-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4892-38-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4892-49-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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