remcos | e8f7e74c1dcc5b41ab270db144dc219ba8e6ad986299a7fd82ce458ea7930caa

General

Target

e8f7e74c1dcc5b41ab270db144dc219ba8e6ad986299a7fd82ce458ea7930caa.exe
Size

1.4MB
MD5

0b4484f89131f3ab8cf9a4a89d7884c7
SHA1

d20746a8b2954a3a3831de201ffc88213b99dd11
SHA256

e8f7e74c1dcc5b41ab270db144dc219ba8e6ad986299a7fd82ce458ea7930caa
SHA512

5549dfa9acf2eb16c40026ed03bb40e6d128f74cdc54646ace01b3df7d321412f3f6a9c4ce551f090889711b34e01d80aedee7fae01a665b0b99e79058878f03
SSDEEP

24576:1D39dlfGQrFUspugRNJI2DJnUw9W/j+BeKJOW:1F+QrFUBgq25eKwW

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

Executes dropped EXE 2 IoCs

pid	Process
2928	sbietrcl.exe
2768	sbietrcl.exe

Loads dropped DLL 1 IoCs

pid	Process
2356	e8f7e74c1dcc5b41ab270db144dc219ba8e6ad986299a7fd82ce458ea7930caa.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-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe"	e8f7e74c1dcc5b41ab270db144dc219ba8e6ad986299a7fd82ce458ea7930caa.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2928 set thread context of 2768	2928	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	e8f7e74c1dcc5b41ab270db144dc219ba8e6ad986299a7fd82ce458ea7930caa.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sbietrcl.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
2356	e8f7e74c1dcc5b41ab270db144dc219ba8e6ad986299a7fd82ce458ea7930caa.exe
2356	e8f7e74c1dcc5b41ab270db144dc219ba8e6ad986299a7fd82ce458ea7930caa.exe
2356	e8f7e74c1dcc5b41ab270db144dc219ba8e6ad986299a7fd82ce458ea7930caa.exe
2356	e8f7e74c1dcc5b41ab270db144dc219ba8e6ad986299a7fd82ce458ea7930caa.exe
2356	e8f7e74c1dcc5b41ab270db144dc219ba8e6ad986299a7fd82ce458ea7930caa.exe
2356	e8f7e74c1dcc5b41ab270db144dc219ba8e6ad986299a7fd82ce458ea7930caa.exe
2928	sbietrcl.exe
2928	sbietrcl.exe
2928	sbietrcl.exe
2928	sbietrcl.exe
2928	sbietrcl.exe
2928	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2356	e8f7e74c1dcc5b41ab270db144dc219ba8e6ad986299a7fd82ce458ea7930caa.exe
Token: SeDebugPrivilege	2928	sbietrcl.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2768	sbietrcl.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2356 wrote to memory of 2928	2356	e8f7e74c1dcc5b41ab270db144dc219ba8e6ad986299a7fd82ce458ea7930caa.exe	30
PID 2356 wrote to memory of 2928	2356	e8f7e74c1dcc5b41ab270db144dc219ba8e6ad986299a7fd82ce458ea7930caa.exe	30
PID 2356 wrote to memory of 2928	2356	e8f7e74c1dcc5b41ab270db144dc219ba8e6ad986299a7fd82ce458ea7930caa.exe	30
PID 2356 wrote to memory of 2928	2356	e8f7e74c1dcc5b41ab270db144dc219ba8e6ad986299a7fd82ce458ea7930caa.exe	30
PID 2928 wrote to memory of 2768	2928	sbietrcl.exe	32
PID 2928 wrote to memory of 2768	2928	sbietrcl.exe	32
PID 2928 wrote to memory of 2768	2928	sbietrcl.exe	32
PID 2928 wrote to memory of 2768	2928	sbietrcl.exe	32
PID 2928 wrote to memory of 2768	2928	sbietrcl.exe	32
PID 2928 wrote to memory of 2768	2928	sbietrcl.exe	32
PID 2928 wrote to memory of 2768	2928	sbietrcl.exe	32
PID 2928 wrote to memory of 2768	2928	sbietrcl.exe	32
PID 2928 wrote to memory of 2768	2928	sbietrcl.exe	32
PID 2928 wrote to memory of 2768	2928	sbietrcl.exe	32

C:\Users\Admin\AppData\Local\Temp\e8f7e74c1dcc5b41ab270db144dc219ba8e6ad986299a7fd82ce458ea7930caa.exe
"C:\Users\Admin\AppData\Local\Temp\e8f7e74c1dcc5b41ab270db144dc219ba8e6ad986299a7fd82ce458ea7930caa.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:2356
- 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:2928
- - 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:2768

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\CabD4BD.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

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

Filesize
1.4MB

MD5
5d0e640dd13cacfd58c610f0136ecca4

SHA1
e23a94f334babc7b4ed8ca5a0a6f514fc4134f36

SHA256
d489ccbb5b04c8012dcb17699fe6766334b6852eda921e24f5fc868b77089f88

SHA512
2892425dce7ba87f6eb4d65c64654854483460ba911c4fdd1a694c44caf5703fbb881c62b75671cafb44a5fa600e9839734bcd1e413fb3febb7ef6851dc5b559

Download Submit
memory/2356-1-0x0000000074AF0000-0x000000007509B000-memory.dmp

Filesize
5.7MB

Download
memory/2356-9-0x0000000074AF0000-0x000000007509B000-memory.dmp

Filesize
5.7MB

Download
memory/2356-10-0x0000000074AF0000-0x000000007509B000-memory.dmp

Filesize
5.7MB

Download
memory/2356-28-0x0000000074AF0000-0x000000007509B000-memory.dmp

Filesize
5.7MB

Download
memory/2356-0-0x0000000074AF1000-0x0000000074AF2000-memory.dmp

Filesize
4KB

Download
memory/2768-39-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2768-43-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2768-56-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2768-52-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2768-44-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2768-47-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2768-45-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2768-55-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2768-41-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2768-40-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2768-51-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2928-50-0x0000000074AF0000-0x000000007509B000-memory.dmp

Filesize
5.7MB

Download
memory/2928-37-0x0000000074AF0000-0x000000007509B000-memory.dmp

Filesize
5.7MB

Download
memory/2928-29-0x0000000074AF0000-0x000000007509B000-memory.dmp

Filesize
5.7MB

Download
memory/2928-38-0x0000000074AF0000-0x000000007509B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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