remcos | d9c9afaa00e606c9eec0e592a1382583243ed92496cd3be8df37584deeb76354

General

Target

d9c9afaa00e606c9eec0e592a1382583243ed92496cd3be8df37584deeb76354N.exe
Size

1.4MB
MD5

d24fc9836a5fe7ffa3798c8ea49d9460
SHA1

1a85ac23f48b896695a8645a8818a5fc8166e541
SHA256

d9c9afaa00e606c9eec0e592a1382583243ed92496cd3be8df37584deeb76354
SHA512

f53750ddac4fb2850afb4137beea6bdb7735a2192b2ae82ca30b535021ef5c426fc23f51d500b39a529b3a0f130f1f08d523baba0654de475543fbd3920e668c
SSDEEP

24576:1D39dlfGQrFUspugRNJI2DJnUw9W/j+BeKJOW:1F+QrFUBgq25eKwW

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	d9c9afaa00e606c9eec0e592a1382583243ed92496cd3be8df37584deeb76354N.exe

Executes dropped EXE 2 IoCs

pid	Process
4472	sbietrcl.exe
3316	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"	d9c9afaa00e606c9eec0e592a1382583243ed92496cd3be8df37584deeb76354N.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4472 set thread context of 3316	4472	sbietrcl.exe	83

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	d9c9afaa00e606c9eec0e592a1382583243ed92496cd3be8df37584deeb76354N.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
2108	d9c9afaa00e606c9eec0e592a1382583243ed92496cd3be8df37584deeb76354N.exe
2108	d9c9afaa00e606c9eec0e592a1382583243ed92496cd3be8df37584deeb76354N.exe
2108	d9c9afaa00e606c9eec0e592a1382583243ed92496cd3be8df37584deeb76354N.exe
2108	d9c9afaa00e606c9eec0e592a1382583243ed92496cd3be8df37584deeb76354N.exe
2108	d9c9afaa00e606c9eec0e592a1382583243ed92496cd3be8df37584deeb76354N.exe
2108	d9c9afaa00e606c9eec0e592a1382583243ed92496cd3be8df37584deeb76354N.exe
4472	sbietrcl.exe
4472	sbietrcl.exe
4472	sbietrcl.exe
4472	sbietrcl.exe
4472	sbietrcl.exe
4472	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2108	d9c9afaa00e606c9eec0e592a1382583243ed92496cd3be8df37584deeb76354N.exe
Token: SeDebugPrivilege	4472	sbietrcl.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3316	sbietrcl.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2108 wrote to memory of 4472	2108	d9c9afaa00e606c9eec0e592a1382583243ed92496cd3be8df37584deeb76354N.exe	82
PID 2108 wrote to memory of 4472	2108	d9c9afaa00e606c9eec0e592a1382583243ed92496cd3be8df37584deeb76354N.exe	82
PID 2108 wrote to memory of 4472	2108	d9c9afaa00e606c9eec0e592a1382583243ed92496cd3be8df37584deeb76354N.exe	82
PID 4472 wrote to memory of 3316	4472	sbietrcl.exe	83
PID 4472 wrote to memory of 3316	4472	sbietrcl.exe	83
PID 4472 wrote to memory of 3316	4472	sbietrcl.exe	83
PID 4472 wrote to memory of 3316	4472	sbietrcl.exe	83
PID 4472 wrote to memory of 3316	4472	sbietrcl.exe	83
PID 4472 wrote to memory of 3316	4472	sbietrcl.exe	83
PID 4472 wrote to memory of 3316	4472	sbietrcl.exe	83
PID 4472 wrote to memory of 3316	4472	sbietrcl.exe	83
PID 4472 wrote to memory of 3316	4472	sbietrcl.exe	83

C:\Users\Admin\AppData\Local\Temp\d9c9afaa00e606c9eec0e592a1382583243ed92496cd3be8df37584deeb76354N.exe
"C:\Users\Admin\AppData\Local\Temp\d9c9afaa00e606c9eec0e592a1382583243ed92496cd3be8df37584deeb76354N.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:2108
- 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:4472
- - 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:3316

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
c78bd16cff7eda9e0c682c17fe0b6af9

SHA1
1ab97a992e6ed799d199745902b8559975f68339

SHA256
bd01fee87eeaee1cc97f8abf54a0b75ab1e265db195b2f449ce915273aa4756e

SHA512
069f009618597fbf6210ed9b7ef908c0441ed79631420f2eface91b61b200b486a719cb93c219f3ab251400786e4b7bc21c977b439fe837b4c908362d58dd9dc

Download Submit
memory/2108-0-0x0000000075592000-0x0000000075593000-memory.dmp

Filesize
4KB

Download
memory/2108-1-0x0000000075590000-0x0000000075B41000-memory.dmp

Filesize
5.7MB

Download
memory/2108-2-0x0000000075590000-0x0000000075B41000-memory.dmp

Filesize
5.7MB

Download
memory/2108-5-0x0000000075592000-0x0000000075593000-memory.dmp

Filesize
4KB

Download
memory/2108-6-0x0000000075590000-0x0000000075B41000-memory.dmp

Filesize
5.7MB

Download
memory/2108-7-0x0000000075590000-0x0000000075B41000-memory.dmp

Filesize
5.7MB

Download
memory/2108-8-0x0000000075590000-0x0000000075B41000-memory.dmp

Filesize
5.7MB

Download
memory/2108-9-0x0000000075590000-0x0000000075B41000-memory.dmp

Filesize
5.7MB

Download
memory/2108-31-0x0000000075590000-0x0000000075B41000-memory.dmp

Filesize
5.7MB

Download
memory/3316-39-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3316-36-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3316-40-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3316-44-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3316-43-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3316-45-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3316-50-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4472-33-0x0000000075590000-0x0000000075B41000-memory.dmp

Filesize
5.7MB

Download
memory/4472-35-0x0000000075590000-0x0000000075B41000-memory.dmp

Filesize
5.7MB

Download
memory/4472-34-0x0000000075590000-0x0000000075B41000-memory.dmp

Filesize
5.7MB

Download
memory/4472-32-0x0000000075590000-0x0000000075B41000-memory.dmp

Filesize
5.7MB

Download
memory/4472-47-0x0000000075590000-0x0000000075B41000-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