remcos | eeb926f2febcc2bb70d39869f6cf89ec3ffa8c3bc8839a405d5cf116a3500cfe

General

Target

eeb926f2febcc2bb70d39869f6cf89ec3ffa8c3bc8839a405d5cf116a3500cfe.exe
Size

1.4MB
MD5

0aab0aa6b18cc7b75cac96ee3703f49b
SHA1

2a156d69283e7e06cf4f8ca055cf59edbb71a71c
SHA256

eeb926f2febcc2bb70d39869f6cf89ec3ffa8c3bc8839a405d5cf116a3500cfe
SHA512

b885189333556394a34c11a9413950da324edbba342c5bc55c2d879df04c0ef44766da227af16e819ebc1645f41072df35baad918c8e8c0e0f0827d119a0f79d
SSDEEP

24576:ID39dlfGQrFUspugRNJI2DJnUw9W/j+BeKJ3:IF+QrFUBgq25eKl

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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	eeb926f2febcc2bb70d39869f6cf89ec3ffa8c3bc8839a405d5cf116a3500cfe.exe

Executes dropped EXE 2 IoCs

pid	Process
4232	sbietrcl.exe
1780	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-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe"	eeb926f2febcc2bb70d39869f6cf89ec3ffa8c3bc8839a405d5cf116a3500cfe.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4232 set thread context of 1780	4232	sbietrcl.exe	88

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	eeb926f2febcc2bb70d39869f6cf89ec3ffa8c3bc8839a405d5cf116a3500cfe.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
4796	eeb926f2febcc2bb70d39869f6cf89ec3ffa8c3bc8839a405d5cf116a3500cfe.exe
4796	eeb926f2febcc2bb70d39869f6cf89ec3ffa8c3bc8839a405d5cf116a3500cfe.exe
4796	eeb926f2febcc2bb70d39869f6cf89ec3ffa8c3bc8839a405d5cf116a3500cfe.exe
4796	eeb926f2febcc2bb70d39869f6cf89ec3ffa8c3bc8839a405d5cf116a3500cfe.exe
4796	eeb926f2febcc2bb70d39869f6cf89ec3ffa8c3bc8839a405d5cf116a3500cfe.exe
4796	eeb926f2febcc2bb70d39869f6cf89ec3ffa8c3bc8839a405d5cf116a3500cfe.exe
4232	sbietrcl.exe
4232	sbietrcl.exe
4232	sbietrcl.exe
4232	sbietrcl.exe
4232	sbietrcl.exe
4232	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4796	eeb926f2febcc2bb70d39869f6cf89ec3ffa8c3bc8839a405d5cf116a3500cfe.exe
Token: SeDebugPrivilege	4232	sbietrcl.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1780	sbietrcl.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4796 wrote to memory of 4232	4796	eeb926f2febcc2bb70d39869f6cf89ec3ffa8c3bc8839a405d5cf116a3500cfe.exe	86
PID 4796 wrote to memory of 4232	4796	eeb926f2febcc2bb70d39869f6cf89ec3ffa8c3bc8839a405d5cf116a3500cfe.exe	86
PID 4796 wrote to memory of 4232	4796	eeb926f2febcc2bb70d39869f6cf89ec3ffa8c3bc8839a405d5cf116a3500cfe.exe	86
PID 4232 wrote to memory of 1780	4232	sbietrcl.exe	88
PID 4232 wrote to memory of 1780	4232	sbietrcl.exe	88
PID 4232 wrote to memory of 1780	4232	sbietrcl.exe	88
PID 4232 wrote to memory of 1780	4232	sbietrcl.exe	88
PID 4232 wrote to memory of 1780	4232	sbietrcl.exe	88
PID 4232 wrote to memory of 1780	4232	sbietrcl.exe	88
PID 4232 wrote to memory of 1780	4232	sbietrcl.exe	88
PID 4232 wrote to memory of 1780	4232	sbietrcl.exe	88
PID 4232 wrote to memory of 1780	4232	sbietrcl.exe	88

C:\Users\Admin\AppData\Local\Temp\eeb926f2febcc2bb70d39869f6cf89ec3ffa8c3bc8839a405d5cf116a3500cfe.exe
"C:\Users\Admin\AppData\Local\Temp\eeb926f2febcc2bb70d39869f6cf89ec3ffa8c3bc8839a405d5cf116a3500cfe.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:4796
- 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:4232
- - 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:1780

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
1.4MB

MD5
a3ac7f33fbd3ee0d54c194bbcf26a07d

SHA1
a4bab79732115842e2dce6ae138a7c680dcf16d8

SHA256
bd88ff3632e2925424a96239666e40e5e4f66791c80f9209b2b795d4aca85cad

SHA512
63f9ea778d280334f8a17cde5b3c75c9e9339d8b81166391e6178cdc3a4dec2214dc62242de4627bff16aceb77148502d7670239b8c25a99ed90e89ec00e7e02

Download Submit
memory/1780-35-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1780-49-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1780-44-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1780-45-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1780-40-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1780-43-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1780-38-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4232-32-0x0000000075340000-0x00000000758F1000-memory.dmp

Filesize
5.7MB

Download
memory/4232-31-0x0000000075340000-0x00000000758F1000-memory.dmp

Filesize
5.7MB

Download
memory/4232-33-0x0000000075340000-0x00000000758F1000-memory.dmp

Filesize
5.7MB

Download
memory/4232-34-0x0000000075340000-0x00000000758F1000-memory.dmp

Filesize
5.7MB

Download
memory/4232-46-0x0000000075340000-0x00000000758F1000-memory.dmp

Filesize
5.7MB

Download
memory/4796-0-0x0000000075342000-0x0000000075343000-memory.dmp

Filesize
4KB

Download
memory/4796-30-0x0000000075340000-0x00000000758F1000-memory.dmp

Filesize
5.7MB

Download
memory/4796-19-0x0000000075340000-0x00000000758F1000-memory.dmp

Filesize
5.7MB

Download
memory/4796-18-0x0000000075342000-0x0000000075343000-memory.dmp

Filesize
4KB

Download
memory/4796-6-0x0000000075340000-0x00000000758F1000-memory.dmp

Filesize
5.7MB

Download
memory/4796-5-0x0000000075340000-0x00000000758F1000-memory.dmp

Filesize
5.7MB

Download
memory/4796-2-0x0000000075340000-0x00000000758F1000-memory.dmp

Filesize
5.7MB

Download
memory/4796-1-0x0000000075340000-0x00000000758F1000-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