remcos | 7c09d979fd266f49eb9418364e54d1cfe596bd343073eb5175539d3a4edf898b

General

Target

7c09d979fd266f49eb9418364e54d1cfe596bd343073eb5175539d3a4edf898bN.exe
Size

1.4MB
MD5

e002d88c5146ec8f42bcc9cf0a029af0
SHA1

88ce6da042c371b5ca59a86b3e8955d13d40aa7d
SHA256

7c09d979fd266f49eb9418364e54d1cfe596bd343073eb5175539d3a4edf898b
SHA512

c88ac937212bc0dfb0cdb020f7415550f086e593720c868f4af1f49e0134f8b1cc2d0c22fc12c3d8260628766a5df013030b21bc8883b0c2b7f7a0bf68c8f927
SSDEEP

24576:lD39dlfGQrFUspugRNJI2DJnUw9W/j+BeKJ33G:lF+QrFUBgq25eKZW

Score

10^/10

remcos host discovery persistence rat

Malware Config

Extracted

Family

remcos

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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	7c09d979fd266f49eb9418364e54d1cfe596bd343073eb5175539d3a4edf898bN.exe

Executes dropped EXE 2 IoCs

pid	Process
4524	sbietrcl.exe
4892	sbietrcl.exe

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-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe"	7c09d979fd266f49eb9418364e54d1cfe596bd343073eb5175539d3a4edf898bN.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4524 set thread context of 4892	4524	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 2 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	7c09d979fd266f49eb9418364e54d1cfe596bd343073eb5175539d3a4edf898bN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sbietrcl.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
4412	7c09d979fd266f49eb9418364e54d1cfe596bd343073eb5175539d3a4edf898bN.exe
4412	7c09d979fd266f49eb9418364e54d1cfe596bd343073eb5175539d3a4edf898bN.exe
4412	7c09d979fd266f49eb9418364e54d1cfe596bd343073eb5175539d3a4edf898bN.exe
4412	7c09d979fd266f49eb9418364e54d1cfe596bd343073eb5175539d3a4edf898bN.exe
4412	7c09d979fd266f49eb9418364e54d1cfe596bd343073eb5175539d3a4edf898bN.exe
4412	7c09d979fd266f49eb9418364e54d1cfe596bd343073eb5175539d3a4edf898bN.exe
4524	sbietrcl.exe
4524	sbietrcl.exe
4524	sbietrcl.exe
4524	sbietrcl.exe
4524	sbietrcl.exe
4524	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4412	7c09d979fd266f49eb9418364e54d1cfe596bd343073eb5175539d3a4edf898bN.exe
Token: SeDebugPrivilege	4524	sbietrcl.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4412 wrote to memory of 4524	4412	7c09d979fd266f49eb9418364e54d1cfe596bd343073eb5175539d3a4edf898bN.exe	84
PID 4412 wrote to memory of 4524	4412	7c09d979fd266f49eb9418364e54d1cfe596bd343073eb5175539d3a4edf898bN.exe	84
PID 4412 wrote to memory of 4524	4412	7c09d979fd266f49eb9418364e54d1cfe596bd343073eb5175539d3a4edf898bN.exe	84
PID 4524 wrote to memory of 4892	4524	sbietrcl.exe	85
PID 4524 wrote to memory of 4892	4524	sbietrcl.exe	85
PID 4524 wrote to memory of 4892	4524	sbietrcl.exe	85
PID 4524 wrote to memory of 4892	4524	sbietrcl.exe	85
PID 4524 wrote to memory of 4892	4524	sbietrcl.exe	85
PID 4524 wrote to memory of 4892	4524	sbietrcl.exe	85
PID 4524 wrote to memory of 4892	4524	sbietrcl.exe	85
PID 4524 wrote to memory of 4892	4524	sbietrcl.exe	85
PID 4524 wrote to memory of 4892	4524	sbietrcl.exe	85

C:\Users\Admin\AppData\Local\Temp\7c09d979fd266f49eb9418364e54d1cfe596bd343073eb5175539d3a4edf898bN.exe
"C:\Users\Admin\AppData\Local\Temp\7c09d979fd266f49eb9418364e54d1cfe596bd343073eb5175539d3a4edf898bN.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:4412
- 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:4524
- - C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe"
    3⤵
    - Executes dropped EXE
    PID:4892

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

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe

Filesize
1.4MB

MD5
b128c8444522b7e72c4cd13279323f75

SHA1
1c248b5323145789eb8b057a60aef42b379e1047

SHA256
376da0eaf607a81b11f03007b79bcd18a463bf8a336feb0ae1dcaeee9fa49162

SHA512
ef3c43647796b4b7e592ee6c5ff05792e9752be5c7f18a382fc35edc7f58a6a1d30285626908076cbe8dc15917e757a27fcdf95a61a93978d4348872c1516537

Download Submit
memory/4412-19-0x0000000074A50000-0x0000000075001000-memory.dmp

Filesize
5.7MB

Download
memory/4412-2-0x0000000074A50000-0x0000000075001000-memory.dmp

Filesize
5.7MB

Download
memory/4412-5-0x0000000074A50000-0x0000000075001000-memory.dmp

Filesize
5.7MB

Download
memory/4412-6-0x0000000074A50000-0x0000000075001000-memory.dmp

Filesize
5.7MB

Download
memory/4412-18-0x0000000074A52000-0x0000000074A53000-memory.dmp

Filesize
4KB

Download
memory/4412-0-0x0000000074A52000-0x0000000074A53000-memory.dmp

Filesize
4KB

Download
memory/4412-1-0x0000000074A50000-0x0000000075001000-memory.dmp

Filesize
5.7MB

Download
memory/4412-30-0x0000000074A50000-0x0000000075001000-memory.dmp

Filesize
5.7MB

Download
memory/4524-31-0x0000000074A50000-0x0000000075001000-memory.dmp

Filesize
5.7MB

Download
memory/4524-32-0x0000000074A50000-0x0000000075001000-memory.dmp

Filesize
5.7MB

Download
memory/4524-33-0x0000000074A50000-0x0000000075001000-memory.dmp

Filesize
5.7MB

Download
memory/4524-40-0x0000000074A50000-0x0000000075001000-memory.dmp

Filesize
5.7MB

Download
memory/4892-36-0x0000000000600000-0x0000000000617000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads