remcos | 2592367f9cc1b37d0735e475bbb52cb61c69c0674c908b9c1d12635163cb4ffb

General

Target

2592367f9cc1b37d0735e475bbb52cb61c69c0674c908b9c1d12635163cb4ffb.exe
Size

1.9MB
MD5

763f1e6fe1bff405f9e6c832dc958c91
SHA1

3ca2538ae35c2c17c2b1097faf2b5e1e5128279f
SHA256

2592367f9cc1b37d0735e475bbb52cb61c69c0674c908b9c1d12635163cb4ffb
SHA512

8146245c3953600b1875675ff7c1164201c03ac0189eb152c2cd8bc9664fa08798fec1f5a8ea42448cf1db3d0631449c1b3c3396f7267a2b10e9748efed5bed5
SSDEEP

24576:QD39dlfGQrFUspugRNJI2DJnUw9W/j+BeKJWqwH6d:QF+QrFUBgq25eKu6d

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-1-5-21-1062200478-553497403-3857448183-1000\Control Panel\International\Geo\Nation	2592367f9cc1b37d0735e475bbb52cb61c69c0674c908b9c1d12635163cb4ffb.exe

Executes dropped EXE 2 IoCs

pid	Process
1720	sbietrcl.exe
4984	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-1-5-21-1062200478-553497403-3857448183-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe"	2592367f9cc1b37d0735e475bbb52cb61c69c0674c908b9c1d12635163cb4ffb.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1720 set thread context of 4984	1720	sbietrcl.exe	95

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	2592367f9cc1b37d0735e475bbb52cb61c69c0674c908b9c1d12635163cb4ffb.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
4336	2592367f9cc1b37d0735e475bbb52cb61c69c0674c908b9c1d12635163cb4ffb.exe
4336	2592367f9cc1b37d0735e475bbb52cb61c69c0674c908b9c1d12635163cb4ffb.exe
4336	2592367f9cc1b37d0735e475bbb52cb61c69c0674c908b9c1d12635163cb4ffb.exe
4336	2592367f9cc1b37d0735e475bbb52cb61c69c0674c908b9c1d12635163cb4ffb.exe
4336	2592367f9cc1b37d0735e475bbb52cb61c69c0674c908b9c1d12635163cb4ffb.exe
4336	2592367f9cc1b37d0735e475bbb52cb61c69c0674c908b9c1d12635163cb4ffb.exe
1720	sbietrcl.exe
1720	sbietrcl.exe
1720	sbietrcl.exe
1720	sbietrcl.exe
1720	sbietrcl.exe
1720	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4336	2592367f9cc1b37d0735e475bbb52cb61c69c0674c908b9c1d12635163cb4ffb.exe
Token: SeDebugPrivilege	1720	sbietrcl.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4984	sbietrcl.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4336 wrote to memory of 1720	4336	2592367f9cc1b37d0735e475bbb52cb61c69c0674c908b9c1d12635163cb4ffb.exe	93
PID 4336 wrote to memory of 1720	4336	2592367f9cc1b37d0735e475bbb52cb61c69c0674c908b9c1d12635163cb4ffb.exe	93
PID 4336 wrote to memory of 1720	4336	2592367f9cc1b37d0735e475bbb52cb61c69c0674c908b9c1d12635163cb4ffb.exe	93
PID 1720 wrote to memory of 4984	1720	sbietrcl.exe	95
PID 1720 wrote to memory of 4984	1720	sbietrcl.exe	95
PID 1720 wrote to memory of 4984	1720	sbietrcl.exe	95
PID 1720 wrote to memory of 4984	1720	sbietrcl.exe	95
PID 1720 wrote to memory of 4984	1720	sbietrcl.exe	95
PID 1720 wrote to memory of 4984	1720	sbietrcl.exe	95
PID 1720 wrote to memory of 4984	1720	sbietrcl.exe	95
PID 1720 wrote to memory of 4984	1720	sbietrcl.exe	95
PID 1720 wrote to memory of 4984	1720	sbietrcl.exe	95

C:\Users\Admin\AppData\Local\Temp\2592367f9cc1b37d0735e475bbb52cb61c69c0674c908b9c1d12635163cb4ffb.exe
"C:\Users\Admin\AppData\Local\Temp\2592367f9cc1b37d0735e475bbb52cb61c69c0674c908b9c1d12635163cb4ffb.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:4336
- 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:1720
- - 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:4984

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
1.9MB

MD5
98c0dc0a25c83e6372058ce1a7bdeacc

SHA1
d48998af15b1da00c72bd0142a56da90ed040e27

SHA256
e6e9726ae57ed257cfc68e2843dcda1dbd3f89fc6accd420c62e11684fd2e208

SHA512
a5f4c848e355ef2f700b076af36374eefa4bd2f8d59fd2ac16315c2366beb88890b7a5fab6d05ad1e714cacc14d8e07b90a78c8d6ad4f65885c959210fc6dbb9

Download Submit
memory/1720-46-0x0000000074E80000-0x0000000075431000-memory.dmp

Filesize
5.7MB

Download
memory/1720-34-0x0000000074E80000-0x0000000075431000-memory.dmp

Filesize
5.7MB

Download
memory/1720-33-0x0000000074E80000-0x0000000075431000-memory.dmp

Filesize
5.7MB

Download
memory/1720-31-0x0000000074E80000-0x0000000075431000-memory.dmp

Filesize
5.7MB

Download
memory/1720-32-0x0000000074E80000-0x0000000075431000-memory.dmp

Filesize
5.7MB

Download
memory/4336-18-0x0000000074E82000-0x0000000074E83000-memory.dmp

Filesize
4KB

Download
memory/4336-1-0x0000000074E80000-0x0000000075431000-memory.dmp

Filesize
5.7MB

Download
memory/4336-30-0x0000000074E80000-0x0000000075431000-memory.dmp

Filesize
5.7MB

Download
memory/4336-0-0x0000000074E82000-0x0000000074E83000-memory.dmp

Filesize
4KB

Download
memory/4336-6-0x0000000074E80000-0x0000000075431000-memory.dmp

Filesize
5.7MB

Download
memory/4336-5-0x0000000074E80000-0x0000000075431000-memory.dmp

Filesize
5.7MB

Download
memory/4336-2-0x0000000074E80000-0x0000000075431000-memory.dmp

Filesize
5.7MB

Download
memory/4336-19-0x0000000074E80000-0x0000000075431000-memory.dmp

Filesize
5.7MB

Download
memory/4984-35-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4984-43-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4984-42-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4984-39-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4984-45-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4984-38-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4984-49-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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