remcos | 74f00395b788009acf25e23ce1859e6ab6190ed10ff7e7519b2947261406714f

General

Target

74f00395b788009acf25e23ce1859e6ab6190ed10ff7e7519b2947261406714f.exe
Size

1013KB
MD5

e9c0befbe98043f4a4179491187e8635
SHA1

f58ea4e73e9fb40dc450cee931fdef8170f728c9
SHA256

74f00395b788009acf25e23ce1859e6ab6190ed10ff7e7519b2947261406714f
SHA512

f2818aacb6930012ce9e8a5dd4543980cf74c19407434909ca1214e4889f5c5a6a83c9de0fc8d087facf86b2c2a280aa7f39e27abca8ac5db6bba66f7e74578e
SSDEEP

12288:9p+rgRNyA55IxJ+feDOa9rZj5XqkJD0QrOod7XxlW91RRzwAY3AzC3r:9pugRNJI1D39dlfGQrFUxwAeAzC3r

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-1-5-21-814918696-1585701690-3140955116-1000\Control Panel\International\Geo\Nation	74f00395b788009acf25e23ce1859e6ab6190ed10ff7e7519b2947261406714f.exe

Executes dropped EXE 2 IoCs

pid	Process
2688	sbietrcl.exe
5256	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-1-5-21-814918696-1585701690-3140955116-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe"	74f00395b788009acf25e23ce1859e6ab6190ed10ff7e7519b2947261406714f.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2688 set thread context of 5256	2688	sbietrcl.exe	97

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	74f00395b788009acf25e23ce1859e6ab6190ed10ff7e7519b2947261406714f.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
3556	74f00395b788009acf25e23ce1859e6ab6190ed10ff7e7519b2947261406714f.exe
3556	74f00395b788009acf25e23ce1859e6ab6190ed10ff7e7519b2947261406714f.exe
3556	74f00395b788009acf25e23ce1859e6ab6190ed10ff7e7519b2947261406714f.exe
3556	74f00395b788009acf25e23ce1859e6ab6190ed10ff7e7519b2947261406714f.exe
3556	74f00395b788009acf25e23ce1859e6ab6190ed10ff7e7519b2947261406714f.exe
3556	74f00395b788009acf25e23ce1859e6ab6190ed10ff7e7519b2947261406714f.exe
2688	sbietrcl.exe
2688	sbietrcl.exe
2688	sbietrcl.exe
2688	sbietrcl.exe
2688	sbietrcl.exe
2688	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3556	74f00395b788009acf25e23ce1859e6ab6190ed10ff7e7519b2947261406714f.exe
Token: SeDebugPrivilege	2688	sbietrcl.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
5256	sbietrcl.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3556 wrote to memory of 2688	3556	74f00395b788009acf25e23ce1859e6ab6190ed10ff7e7519b2947261406714f.exe	96
PID 3556 wrote to memory of 2688	3556	74f00395b788009acf25e23ce1859e6ab6190ed10ff7e7519b2947261406714f.exe	96
PID 3556 wrote to memory of 2688	3556	74f00395b788009acf25e23ce1859e6ab6190ed10ff7e7519b2947261406714f.exe	96
PID 2688 wrote to memory of 5256	2688	sbietrcl.exe	97
PID 2688 wrote to memory of 5256	2688	sbietrcl.exe	97
PID 2688 wrote to memory of 5256	2688	sbietrcl.exe	97
PID 2688 wrote to memory of 5256	2688	sbietrcl.exe	97
PID 2688 wrote to memory of 5256	2688	sbietrcl.exe	97
PID 2688 wrote to memory of 5256	2688	sbietrcl.exe	97
PID 2688 wrote to memory of 5256	2688	sbietrcl.exe	97
PID 2688 wrote to memory of 5256	2688	sbietrcl.exe	97
PID 2688 wrote to memory of 5256	2688	sbietrcl.exe	97

C:\Users\Admin\AppData\Local\Temp\74f00395b788009acf25e23ce1859e6ab6190ed10ff7e7519b2947261406714f.exe
"C:\Users\Admin\AppData\Local\Temp\74f00395b788009acf25e23ce1859e6ab6190ed10ff7e7519b2947261406714f.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:3556
- 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:2688
- - 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:5256

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
1022KB

MD5
9eabe84fa23c56e11e3970176707e05e

SHA1
755adbfe364126ca519927140b6ccf5808e69814

SHA256
ae5f1e1c685b0f94ad366044662e9a9ba241e41ddcb7740e9a1e9382ff4c1336

SHA512
8ac2d99ed49f414ba50a2fba9b39a16ffa09c9eb08e8f7b670e34fe5a73aafe219c430a5ad28c8d05087b36786a3143200cd359400df0cce915f93416a0c4261

Download Submit
memory/2688-46-0x0000000075130000-0x00000000756E1000-memory.dmp

Filesize
5.7MB

Download
memory/2688-33-0x0000000075130000-0x00000000756E1000-memory.dmp

Filesize
5.7MB

Download
memory/2688-34-0x0000000075130000-0x00000000756E1000-memory.dmp

Filesize
5.7MB

Download
memory/2688-32-0x0000000075130000-0x00000000756E1000-memory.dmp

Filesize
5.7MB

Download
memory/2688-31-0x0000000075130000-0x00000000756E1000-memory.dmp

Filesize
5.7MB

Download
memory/3556-18-0x0000000075132000-0x0000000075133000-memory.dmp

Filesize
4KB

Download
memory/3556-1-0x0000000075130000-0x00000000756E1000-memory.dmp

Filesize
5.7MB

Download
memory/3556-29-0x0000000075130000-0x00000000756E1000-memory.dmp

Filesize
5.7MB

Download
memory/3556-0-0x0000000075132000-0x0000000075133000-memory.dmp

Filesize
4KB

Download
memory/3556-6-0x0000000075130000-0x00000000756E1000-memory.dmp

Filesize
5.7MB

Download
memory/3556-5-0x0000000075130000-0x00000000756E1000-memory.dmp

Filesize
5.7MB

Download
memory/3556-2-0x0000000075130000-0x00000000756E1000-memory.dmp

Filesize
5.7MB

Download
memory/3556-19-0x0000000075130000-0x00000000756E1000-memory.dmp

Filesize
5.7MB

Download
memory/5256-35-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/5256-42-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/5256-39-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/5256-38-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/5256-44-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/5256-43-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/5256-49-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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