remcos | eeac2673ba8c27f69ec5efe64669138bc0e4d7b19c1778c6e8789729baf564b2

General

Target

eeac2673ba8c27f69ec5efe64669138bc0e4d7b19c1778c6e8789729baf564b2.exe
Size

1.0MB
MD5

60de3e1538e7d83d611ed4ffe50e939c
SHA1

f55771a99a67720c0fbf8372a3d967b4c70b0172
SHA256

eeac2673ba8c27f69ec5efe64669138bc0e4d7b19c1778c6e8789729baf564b2
SHA512

621326429847902b2b5a33a42d110b280f955867652ee17aaf0380bafdd9514d8bdd645788fb60280f3a459c604421b52b940a17edc11c06ad3160e7f437a7f9
SSDEEP

12288:PfeDOa9rDeYSorINpj5XqkJD0QrOod7XxlW91RRep+rgRNyA55IxJ2DJW//oj/y:uD39v74lfGQrFUspugRNJI2DJW//oja

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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	eeac2673ba8c27f69ec5efe64669138bc0e4d7b19c1778c6e8789729baf564b2.exe

Executes dropped EXE 2 IoCs

pid	Process
4160	sbietrcl.exe
2548	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-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe"	eeac2673ba8c27f69ec5efe64669138bc0e4d7b19c1778c6e8789729baf564b2.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4160 set thread context of 2548	4160	sbietrcl.exe	85

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	eeac2673ba8c27f69ec5efe64669138bc0e4d7b19c1778c6e8789729baf564b2.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
4948	eeac2673ba8c27f69ec5efe64669138bc0e4d7b19c1778c6e8789729baf564b2.exe
4948	eeac2673ba8c27f69ec5efe64669138bc0e4d7b19c1778c6e8789729baf564b2.exe
4948	eeac2673ba8c27f69ec5efe64669138bc0e4d7b19c1778c6e8789729baf564b2.exe
4948	eeac2673ba8c27f69ec5efe64669138bc0e4d7b19c1778c6e8789729baf564b2.exe
4948	eeac2673ba8c27f69ec5efe64669138bc0e4d7b19c1778c6e8789729baf564b2.exe
4948	eeac2673ba8c27f69ec5efe64669138bc0e4d7b19c1778c6e8789729baf564b2.exe
4160	sbietrcl.exe
4160	sbietrcl.exe
4160	sbietrcl.exe
4160	sbietrcl.exe
4160	sbietrcl.exe
4160	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4948	eeac2673ba8c27f69ec5efe64669138bc0e4d7b19c1778c6e8789729baf564b2.exe
Token: SeDebugPrivilege	4160	sbietrcl.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2548	sbietrcl.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4948 wrote to memory of 4160	4948	eeac2673ba8c27f69ec5efe64669138bc0e4d7b19c1778c6e8789729baf564b2.exe	82
PID 4948 wrote to memory of 4160	4948	eeac2673ba8c27f69ec5efe64669138bc0e4d7b19c1778c6e8789729baf564b2.exe	82
PID 4948 wrote to memory of 4160	4948	eeac2673ba8c27f69ec5efe64669138bc0e4d7b19c1778c6e8789729baf564b2.exe	82
PID 4160 wrote to memory of 2548	4160	sbietrcl.exe	85
PID 4160 wrote to memory of 2548	4160	sbietrcl.exe	85
PID 4160 wrote to memory of 2548	4160	sbietrcl.exe	85
PID 4160 wrote to memory of 2548	4160	sbietrcl.exe	85
PID 4160 wrote to memory of 2548	4160	sbietrcl.exe	85
PID 4160 wrote to memory of 2548	4160	sbietrcl.exe	85
PID 4160 wrote to memory of 2548	4160	sbietrcl.exe	85
PID 4160 wrote to memory of 2548	4160	sbietrcl.exe	85
PID 4160 wrote to memory of 2548	4160	sbietrcl.exe	85

C:\Users\Admin\AppData\Local\Temp\eeac2673ba8c27f69ec5efe64669138bc0e4d7b19c1778c6e8789729baf564b2.exe
"C:\Users\Admin\AppData\Local\Temp\eeac2673ba8c27f69ec5efe64669138bc0e4d7b19c1778c6e8789729baf564b2.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:4948
- 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:4160
- - 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:2548

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
1.0MB

MD5
150399a378fcf04683b3d9eef6502610

SHA1
d801fdd5adb0057d544daa3f5ae166d503896f14

SHA256
4a7866e24de8abfc5c3ed5a3696e72ad5410e6d74c32a2e19e98ffc1804e5b7f

SHA512
582741080d02be4ca8778d319afbcd2729327ea47ab3f74337cf6971e3767258c87ec7e50427f09eace3d9183086e1d12692cee36f5dffadfe7778274707263b

Download Submit
memory/2548-32-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2548-46-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2548-42-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2548-41-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2548-39-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2548-36-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2548-35-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4160-30-0x0000000075400000-0x00000000759B1000-memory.dmp

Filesize
5.7MB

Download
memory/4160-29-0x0000000075400000-0x00000000759B1000-memory.dmp

Filesize
5.7MB

Download
memory/4160-31-0x0000000075400000-0x00000000759B1000-memory.dmp

Filesize
5.7MB

Download
memory/4160-43-0x0000000075400000-0x00000000759B1000-memory.dmp

Filesize
5.7MB

Download
memory/4948-0-0x0000000075402000-0x0000000075403000-memory.dmp

Filesize
4KB

Download
memory/4948-28-0x0000000075400000-0x00000000759B1000-memory.dmp

Filesize
5.7MB

Download
memory/4948-17-0x0000000075400000-0x00000000759B1000-memory.dmp

Filesize
5.7MB

Download
memory/4948-16-0x0000000075402000-0x0000000075403000-memory.dmp

Filesize
4KB

Download
memory/4948-4-0x0000000075400000-0x00000000759B1000-memory.dmp

Filesize
5.7MB

Download
memory/4948-3-0x0000000075400000-0x00000000759B1000-memory.dmp

Filesize
5.7MB

Download
memory/4948-2-0x0000000075400000-0x00000000759B1000-memory.dmp

Filesize
5.7MB

Download
memory/4948-1-0x0000000075400000-0x00000000759B1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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