remcos | e8150f2ffbd67dbb394b4d6889693cfd50b5bfaf74825f814c3b46832d6d8851

General

Target

e8150f2ffbd67dbb394b4d6889693cfd50b5bfaf74825f814c3b46832d6d8851.exe
Size

1.1MB
MD5

73c43f022ab0f2c487b181d2f663da1d
SHA1

717f9dc672446cab2a0bbfc3c776304370ec9d23
SHA256

e8150f2ffbd67dbb394b4d6889693cfd50b5bfaf74825f814c3b46832d6d8851
SHA512

9894abb1aeb900ded96cb1dbf8c75d2160e1ac8a5787525c5adb4f8c39feca3897ea026752a6028e5d1a62ca3c7acae6767532eb0305b1ec812915c6d13c68ff
SSDEEP

12288:Gp+rgRNyA55IxJ+feDOa9rZj5XqkJD0QrOod7XxlW91RRzwAY3Ak83R1:GpugRNJI1D39dlfGQrFUxwAeAk83R1

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	e8150f2ffbd67dbb394b4d6889693cfd50b5bfaf74825f814c3b46832d6d8851.exe

Executes dropped EXE 4 IoCs

pid	Process
2936	sbietrcl.exe
1508	sbietrcl.exe
244	sbietrcl.exe
4640	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"	e8150f2ffbd67dbb394b4d6889693cfd50b5bfaf74825f814c3b46832d6d8851.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2936 set thread context of 244	2936	sbietrcl.exe	103
PID 1508 set thread context of 4640	1508	sbietrcl.exe	104

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	e8150f2ffbd67dbb394b4d6889693cfd50b5bfaf74825f814c3b46832d6d8851.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	sbietrcl.exe

Suspicious behavior: EnumeratesProcesses 18 IoCs

pid	Process
2708	e8150f2ffbd67dbb394b4d6889693cfd50b5bfaf74825f814c3b46832d6d8851.exe
2708	e8150f2ffbd67dbb394b4d6889693cfd50b5bfaf74825f814c3b46832d6d8851.exe
2708	e8150f2ffbd67dbb394b4d6889693cfd50b5bfaf74825f814c3b46832d6d8851.exe
2708	e8150f2ffbd67dbb394b4d6889693cfd50b5bfaf74825f814c3b46832d6d8851.exe
2708	e8150f2ffbd67dbb394b4d6889693cfd50b5bfaf74825f814c3b46832d6d8851.exe
2708	e8150f2ffbd67dbb394b4d6889693cfd50b5bfaf74825f814c3b46832d6d8851.exe
2936	sbietrcl.exe
2936	sbietrcl.exe
2936	sbietrcl.exe
2936	sbietrcl.exe
2936	sbietrcl.exe
2936	sbietrcl.exe
1508	sbietrcl.exe
1508	sbietrcl.exe
1508	sbietrcl.exe
1508	sbietrcl.exe
1508	sbietrcl.exe
1508	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2708	e8150f2ffbd67dbb394b4d6889693cfd50b5bfaf74825f814c3b46832d6d8851.exe
Token: SeDebugPrivilege	2936	sbietrcl.exe
Token: SeDebugPrivilege	1508	sbietrcl.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4640	sbietrcl.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 4884 wrote to memory of 2936	4884	cmd.exe	99
PID 4884 wrote to memory of 2936	4884	cmd.exe	99
PID 4884 wrote to memory of 2936	4884	cmd.exe	99
PID 2708 wrote to memory of 1508	2708	e8150f2ffbd67dbb394b4d6889693cfd50b5bfaf74825f814c3b46832d6d8851.exe	100
PID 2708 wrote to memory of 1508	2708	e8150f2ffbd67dbb394b4d6889693cfd50b5bfaf74825f814c3b46832d6d8851.exe	100
PID 2708 wrote to memory of 1508	2708	e8150f2ffbd67dbb394b4d6889693cfd50b5bfaf74825f814c3b46832d6d8851.exe	100
PID 2936 wrote to memory of 244	2936	sbietrcl.exe	103
PID 2936 wrote to memory of 244	2936	sbietrcl.exe	103
PID 2936 wrote to memory of 244	2936	sbietrcl.exe	103
PID 2936 wrote to memory of 244	2936	sbietrcl.exe	103
PID 2936 wrote to memory of 244	2936	sbietrcl.exe	103
PID 2936 wrote to memory of 244	2936	sbietrcl.exe	103
PID 2936 wrote to memory of 244	2936	sbietrcl.exe	103
PID 2936 wrote to memory of 244	2936	sbietrcl.exe	103
PID 2936 wrote to memory of 244	2936	sbietrcl.exe	103
PID 1508 wrote to memory of 4640	1508	sbietrcl.exe	104
PID 1508 wrote to memory of 4640	1508	sbietrcl.exe	104
PID 1508 wrote to memory of 4640	1508	sbietrcl.exe	104
PID 1508 wrote to memory of 4640	1508	sbietrcl.exe	104
PID 1508 wrote to memory of 4640	1508	sbietrcl.exe	104
PID 1508 wrote to memory of 4640	1508	sbietrcl.exe	104
PID 1508 wrote to memory of 4640	1508	sbietrcl.exe	104
PID 1508 wrote to memory of 4640	1508	sbietrcl.exe	104
PID 1508 wrote to memory of 4640	1508	sbietrcl.exe	104

C:\Users\Admin\AppData\Local\Temp\e8150f2ffbd67dbb394b4d6889693cfd50b5bfaf74825f814c3b46832d6d8851.exe
"C:\Users\Admin\AppData\Local\Temp\e8150f2ffbd67dbb394b4d6889693cfd50b5bfaf74825f814c3b46832d6d8851.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:2708
- 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:1508
- - 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:4640

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:4884
- 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:2936
- - 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:244

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
1.1MB

MD5
d7f469b40369adf4920b2a25112eaaed

SHA1
b8aca39bfdd92155411791e00a54381a83238fd9

SHA256
b29de953bc973468fc6d4d288b2bd5dddcf61071b6c103dab2b6699a0164cd53

SHA512
8222b54dbba4526e1ee715dc1774a78bca708a9410cb60e78885154314cbcb7e30201b4578b150dbb476bfb8f474cb06a17b329d11f63aa8428153c1d6cc6e30

Download Submit
memory/1508-44-0x0000000074730000-0x0000000074CE1000-memory.dmp

Filesize
5.7MB

Download
memory/1508-31-0x0000000074730000-0x0000000074CE1000-memory.dmp

Filesize
5.7MB

Download
memory/1508-29-0x0000000074730000-0x0000000074CE1000-memory.dmp

Filesize
5.7MB

Download
memory/2708-27-0x0000000074730000-0x0000000074CE1000-memory.dmp

Filesize
5.7MB

Download
memory/2708-30-0x0000000074730000-0x0000000074CE1000-memory.dmp

Filesize
5.7MB

Download
memory/2708-18-0x0000000074732000-0x0000000074733000-memory.dmp

Filesize
4KB

Download
memory/2708-23-0x0000000074730000-0x0000000074CE1000-memory.dmp

Filesize
5.7MB

Download
memory/2708-1-0x0000000074730000-0x0000000074CE1000-memory.dmp

Filesize
5.7MB

Download
memory/2708-19-0x0000000074730000-0x0000000074CE1000-memory.dmp

Filesize
5.7MB

Download
memory/2708-2-0x0000000074730000-0x0000000074CE1000-memory.dmp

Filesize
5.7MB

Download
memory/2708-0-0x0000000074732000-0x0000000074733000-memory.dmp

Filesize
4KB

Download
memory/2708-6-0x0000000074730000-0x0000000074CE1000-memory.dmp

Filesize
5.7MB

Download
memory/2708-5-0x0000000074730000-0x0000000074CE1000-memory.dmp

Filesize
5.7MB

Download
memory/2936-25-0x0000000074730000-0x0000000074CE1000-memory.dmp

Filesize
5.7MB

Download
memory/2936-34-0x0000000074730000-0x0000000074CE1000-memory.dmp

Filesize
5.7MB

Download
memory/2936-26-0x0000000074730000-0x0000000074CE1000-memory.dmp

Filesize
5.7MB

Download
memory/2936-24-0x0000000074730000-0x0000000074CE1000-memory.dmp

Filesize
5.7MB

Download
memory/4640-35-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4640-37-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4640-41-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4640-38-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4640-43-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads