remcos | f782d90dba9f9e8fb3e059c734cf362b38e79697a02b2e5dbca25e156b6ba8c5

General

Target

f782d90dba9f9e8fb3e059c734cf362b38e79697a02b2e5dbca25e156b6ba8c5.exe
Size

2.0MB
MD5

de8ace350bf5f9ed386aaf2474ead949
SHA1

9af2d597b8e8bf2daa029ff41e2c1712607edc7e
SHA256

f782d90dba9f9e8fb3e059c734cf362b38e79697a02b2e5dbca25e156b6ba8c5
SHA512

51caa8b3422022f439ba43be5fa152e261bb5948d2ab0d38dc66513eeed4b98875438337c5053581f24e8beba1dfacca8956fc6eb548ab16d2f9148932b2e508
SSDEEP

24576:7D39v74lfGQrFUspugRNJI2DJ53J/J/L5dJPj8/j73AneLKJJ+G:7p7E+QrFUBgq29

Score

10^/10

remcos host credential_access 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
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

Executes dropped EXE 2 IoCs

pid	Process
2708	sbietrcl.exe
2628	sbietrcl.exe

Loads dropped DLL 1 IoCs

pid	Process
2388	f782d90dba9f9e8fb3e059c734cf362b38e79697a02b2e5dbca25e156b6ba8c5.exe

Reads user/profile data of web browsers 2 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

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-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe"	f782d90dba9f9e8fb3e059c734cf362b38e79697a02b2e5dbca25e156b6ba8c5.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2708 set thread context of 2628	2708	sbietrcl.exe	32

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	sbietrcl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f782d90dba9f9e8fb3e059c734cf362b38e79697a02b2e5dbca25e156b6ba8c5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sbietrcl.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
2388	f782d90dba9f9e8fb3e059c734cf362b38e79697a02b2e5dbca25e156b6ba8c5.exe
2388	f782d90dba9f9e8fb3e059c734cf362b38e79697a02b2e5dbca25e156b6ba8c5.exe
2388	f782d90dba9f9e8fb3e059c734cf362b38e79697a02b2e5dbca25e156b6ba8c5.exe
2388	f782d90dba9f9e8fb3e059c734cf362b38e79697a02b2e5dbca25e156b6ba8c5.exe
2388	f782d90dba9f9e8fb3e059c734cf362b38e79697a02b2e5dbca25e156b6ba8c5.exe
2388	f782d90dba9f9e8fb3e059c734cf362b38e79697a02b2e5dbca25e156b6ba8c5.exe
2708	sbietrcl.exe
2708	sbietrcl.exe
2708	sbietrcl.exe
2708	sbietrcl.exe
2708	sbietrcl.exe
2708	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2388	f782d90dba9f9e8fb3e059c734cf362b38e79697a02b2e5dbca25e156b6ba8c5.exe
Token: SeDebugPrivilege	2708	sbietrcl.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2628	sbietrcl.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2388 wrote to memory of 2708	2388	f782d90dba9f9e8fb3e059c734cf362b38e79697a02b2e5dbca25e156b6ba8c5.exe	31
PID 2388 wrote to memory of 2708	2388	f782d90dba9f9e8fb3e059c734cf362b38e79697a02b2e5dbca25e156b6ba8c5.exe	31
PID 2388 wrote to memory of 2708	2388	f782d90dba9f9e8fb3e059c734cf362b38e79697a02b2e5dbca25e156b6ba8c5.exe	31
PID 2388 wrote to memory of 2708	2388	f782d90dba9f9e8fb3e059c734cf362b38e79697a02b2e5dbca25e156b6ba8c5.exe	31
PID 2708 wrote to memory of 2628	2708	sbietrcl.exe	32
PID 2708 wrote to memory of 2628	2708	sbietrcl.exe	32
PID 2708 wrote to memory of 2628	2708	sbietrcl.exe	32
PID 2708 wrote to memory of 2628	2708	sbietrcl.exe	32
PID 2708 wrote to memory of 2628	2708	sbietrcl.exe	32
PID 2708 wrote to memory of 2628	2708	sbietrcl.exe	32
PID 2708 wrote to memory of 2628	2708	sbietrcl.exe	32
PID 2708 wrote to memory of 2628	2708	sbietrcl.exe	32
PID 2708 wrote to memory of 2628	2708	sbietrcl.exe	32
PID 2708 wrote to memory of 2628	2708	sbietrcl.exe	32

C:\Users\Admin\AppData\Local\Temp\f782d90dba9f9e8fb3e059c734cf362b38e79697a02b2e5dbca25e156b6ba8c5.exe
"C:\Users\Admin\AppData\Local\Temp\f782d90dba9f9e8fb3e059c734cf362b38e79697a02b2e5dbca25e156b6ba8c5.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2388
- 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:2708
- - 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:2628

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

System Information Discovery

1

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\Temp\CabCD3E.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe

Filesize
2.1MB

MD5
d8557e54a2b5f766dc74ae4c191228de

SHA1
de8da41ee293991cac526f5606dc5ff51302c20a

SHA256
7a1f3f2c34e85c9e17f1764c3c1e038c369c627f533f5e56c3f438f217dd0cf8

SHA512
3518f50e43e418fa454376b65b6335e2444f8c02fafea5c157d39136f74a673312a4cf1a27b33e3536484ef3ce78177499ba2b2aa09d381541a8b5f004ed90d3

Download Submit
memory/2388-28-0x0000000074920000-0x0000000074ECB000-memory.dmp

Filesize
5.7MB

Download
memory/2388-1-0x0000000074920000-0x0000000074ECB000-memory.dmp

Filesize
5.7MB

Download
memory/2388-9-0x0000000074920000-0x0000000074ECB000-memory.dmp

Filesize
5.7MB

Download
memory/2388-10-0x0000000074920000-0x0000000074ECB000-memory.dmp

Filesize
5.7MB

Download
memory/2388-0-0x0000000074921000-0x0000000074922000-memory.dmp

Filesize
4KB

Download
memory/2628-57-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2628-44-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2628-65-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2628-62-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2628-40-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2628-52-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2628-50-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2628-48-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2628-46-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2628-56-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2628-42-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2628-61-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2628-60-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2708-30-0x0000000074920000-0x0000000074ECB000-memory.dmp

Filesize
5.7MB

Download
memory/2708-29-0x0000000074920000-0x0000000074ECB000-memory.dmp

Filesize
5.7MB

Download
memory/2708-55-0x0000000074920000-0x0000000074ECB000-memory.dmp

Filesize
5.7MB

Download
memory/2708-39-0x0000000074920000-0x0000000074ECB000-memory.dmp

Filesize
5.7MB

Download
memory/2708-38-0x0000000074920000-0x0000000074ECB000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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