remcos | e7e1894e1d0f29a19852739fff0eb940c8943166f6dd8ec9686c05fe7f440124

General

Target

e7e1894e1d0f29a19852739fff0eb940c8943166f6dd8ec9686c05fe7f440124.exe
Size

1.5MB
MD5

8c68c01c09f7f8542589548aca1ea076
SHA1

7765c552d6f99d6b04f617af17e59cea4a59585d
SHA256

e7e1894e1d0f29a19852739fff0eb940c8943166f6dd8ec9686c05fe7f440124
SHA512

2b66082b5ceef9399011e34750185606652f8d2a3166719d582326db682d0807ce698986d2c8047d78b76527a16e387d6f783b19afb04b02cf3df59696aaa1a0
SSDEEP

24576:ID39dlfGQrFUspugRNJI2DJnUw9W/j+BeKJBk:IF+QrFUBgq25eKbk

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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	e7e1894e1d0f29a19852739fff0eb940c8943166f6dd8ec9686c05fe7f440124.exe

Executes dropped EXE 2 IoCs

pid	Process
3460	sbietrcl.exe
2624	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-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe"	e7e1894e1d0f29a19852739fff0eb940c8943166f6dd8ec9686c05fe7f440124.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3460 set thread context of 2624	3460	sbietrcl.exe	84

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	sbietrcl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e7e1894e1d0f29a19852739fff0eb940c8943166f6dd8ec9686c05fe7f440124.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
3352	e7e1894e1d0f29a19852739fff0eb940c8943166f6dd8ec9686c05fe7f440124.exe
3352	e7e1894e1d0f29a19852739fff0eb940c8943166f6dd8ec9686c05fe7f440124.exe
3352	e7e1894e1d0f29a19852739fff0eb940c8943166f6dd8ec9686c05fe7f440124.exe
3352	e7e1894e1d0f29a19852739fff0eb940c8943166f6dd8ec9686c05fe7f440124.exe
3352	e7e1894e1d0f29a19852739fff0eb940c8943166f6dd8ec9686c05fe7f440124.exe
3352	e7e1894e1d0f29a19852739fff0eb940c8943166f6dd8ec9686c05fe7f440124.exe
3460	sbietrcl.exe
3460	sbietrcl.exe
3460	sbietrcl.exe
3460	sbietrcl.exe
3460	sbietrcl.exe
3460	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3352	e7e1894e1d0f29a19852739fff0eb940c8943166f6dd8ec9686c05fe7f440124.exe
Token: SeDebugPrivilege	3460	sbietrcl.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2624	sbietrcl.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3352 wrote to memory of 3460	3352	e7e1894e1d0f29a19852739fff0eb940c8943166f6dd8ec9686c05fe7f440124.exe	83
PID 3352 wrote to memory of 3460	3352	e7e1894e1d0f29a19852739fff0eb940c8943166f6dd8ec9686c05fe7f440124.exe	83
PID 3352 wrote to memory of 3460	3352	e7e1894e1d0f29a19852739fff0eb940c8943166f6dd8ec9686c05fe7f440124.exe	83
PID 3460 wrote to memory of 2624	3460	sbietrcl.exe	84
PID 3460 wrote to memory of 2624	3460	sbietrcl.exe	84
PID 3460 wrote to memory of 2624	3460	sbietrcl.exe	84
PID 3460 wrote to memory of 2624	3460	sbietrcl.exe	84
PID 3460 wrote to memory of 2624	3460	sbietrcl.exe	84
PID 3460 wrote to memory of 2624	3460	sbietrcl.exe	84
PID 3460 wrote to memory of 2624	3460	sbietrcl.exe	84
PID 3460 wrote to memory of 2624	3460	sbietrcl.exe	84
PID 3460 wrote to memory of 2624	3460	sbietrcl.exe	84

C:\Users\Admin\AppData\Local\Temp\e7e1894e1d0f29a19852739fff0eb940c8943166f6dd8ec9686c05fe7f440124.exe
"C:\Users\Admin\AppData\Local\Temp\e7e1894e1d0f29a19852739fff0eb940c8943166f6dd8ec9686c05fe7f440124.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:3352
- 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:3460
- - 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:2624

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
1.5MB

MD5
a39c2db6103b0e23ed156449b2ad0068

SHA1
2ed96bb8dccbf02235fcdafd808fcf3fc8b8e987

SHA256
6617689f348e50dc710881a1cd9ce6d31f5e9de21c63301f37e8cdee06b1cf24

SHA512
ff92ce0b73d79247f1b926040a6f8c7ece73d17fc1415a51323b1f012a69dc4f1b048daeae98fa6c164e964a3cdbc713588c42e78ebbdd9962df1348a184c2b0

Download Submit
memory/2624-33-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2624-47-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2624-43-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2624-37-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2624-41-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2624-40-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2624-36-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3352-16-0x0000000074BB2000-0x0000000074BB3000-memory.dmp

Filesize
4KB

Download
memory/3352-28-0x0000000074BB0000-0x0000000075161000-memory.dmp

Filesize
5.7MB

Download
memory/3352-17-0x0000000074BB0000-0x0000000075161000-memory.dmp

Filesize
5.7MB

Download
memory/3352-0-0x0000000074BB2000-0x0000000074BB3000-memory.dmp

Filesize
4KB

Download
memory/3352-4-0x0000000074BB0000-0x0000000075161000-memory.dmp

Filesize
5.7MB

Download
memory/3352-3-0x0000000074BB0000-0x0000000075161000-memory.dmp

Filesize
5.7MB

Download
memory/3352-2-0x0000000074BB0000-0x0000000075161000-memory.dmp

Filesize
5.7MB

Download
memory/3352-1-0x0000000074BB0000-0x0000000075161000-memory.dmp

Filesize
5.7MB

Download
memory/3460-29-0x0000000074BB0000-0x0000000075161000-memory.dmp

Filesize
5.7MB

Download
memory/3460-30-0x0000000074BB0000-0x0000000075161000-memory.dmp

Filesize
5.7MB

Download
memory/3460-31-0x0000000074BB0000-0x0000000075161000-memory.dmp

Filesize
5.7MB

Download
memory/3460-32-0x0000000074BB0000-0x0000000075161000-memory.dmp

Filesize
5.7MB

Download
memory/3460-44-0x0000000074BB0000-0x0000000075161000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads