remcos | 72df2aec1ffc4aa6b345c79159ba506ce4bbc0dfe9e0ff15b7cc1ede56bac281

General

Target

72df2aec1ffc4aa6b345c79159ba506ce4bbc0dfe9e0ff15b7cc1ede56bac281.exe
Size

2.6MB
MD5

515db4f6275767476e5694acecf9cbeb
SHA1

3d4e8845de05195402f8e3e13b8f6f7833868927
SHA256

72df2aec1ffc4aa6b345c79159ba506ce4bbc0dfe9e0ff15b7cc1ede56bac281
SHA512

1c3a63aa9dcfec13b23017cb536a4a5f64e647f8a0f67c6f295684fedaecc5b452f3efb88204346eda72f376cd6d72e9479776b1ff4f9aa070bc8830478fec20
SSDEEP

49152:b/RbkzSYl+aFUUhf3LIc3VEarMl7mmpkaRAYY+a357+NRsVS2pVMSYP3eSbkGBD0:b7oLX3VEarqm6kqm5

Score

10^/10

remcos zilvestre discovery persistence rat

Malware Config

Extracted

Family

remcos

Botnet

ZILVESTRE

C2

ximercxjs.con-ip.com:1667

Attributes

audio_folder
MicRecords
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
remcos.exe
copy_folder
Remcos
delete_file
false
hide_file
false
hide_keylog_file
false
install_flag
false
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
mouse_option
false
mutex
Rmc-N245QQ
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
take_screenshot_option
false
take_screenshot_time
5

Signatures

Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos

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-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Nordou = "C:\\Users\\Admin\\Music\\ManagerFI\\ManagerVPNUpdater.exe"	72df2aec1ffc4aa6b345c79159ba506ce4bbc0dfe9e0ff15b7cc1ede56bac281.exe

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	72df2aec1ffc4aa6b345c79159ba506ce4bbc0dfe9e0ff15b7cc1ede56bac281.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	72df2aec1ffc4aa6b345c79159ba506ce4bbc0dfe9e0ff15b7cc1ede56bac281.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2004	72df2aec1ffc4aa6b345c79159ba506ce4bbc0dfe9e0ff15b7cc1ede56bac281.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4912 wrote to memory of 2004	4912	72df2aec1ffc4aa6b345c79159ba506ce4bbc0dfe9e0ff15b7cc1ede56bac281.exe	89
PID 4912 wrote to memory of 2004	4912	72df2aec1ffc4aa6b345c79159ba506ce4bbc0dfe9e0ff15b7cc1ede56bac281.exe	89
PID 4912 wrote to memory of 2004	4912	72df2aec1ffc4aa6b345c79159ba506ce4bbc0dfe9e0ff15b7cc1ede56bac281.exe	89
PID 4912 wrote to memory of 2004	4912	72df2aec1ffc4aa6b345c79159ba506ce4bbc0dfe9e0ff15b7cc1ede56bac281.exe	89
PID 4912 wrote to memory of 2004	4912	72df2aec1ffc4aa6b345c79159ba506ce4bbc0dfe9e0ff15b7cc1ede56bac281.exe	89

C:\Users\Admin\AppData\Local\Temp\72df2aec1ffc4aa6b345c79159ba506ce4bbc0dfe9e0ff15b7cc1ede56bac281.exe
"C:\Users\Admin\AppData\Local\Temp\72df2aec1ffc4aa6b345c79159ba506ce4bbc0dfe9e0ff15b7cc1ede56bac281.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4912
- C:\Users\Admin\AppData\Local\Temp\72df2aec1ffc4aa6b345c79159ba506ce4bbc0dfe9e0ff15b7cc1ede56bac281.exe
  "C:\Users\Admin\AppData\Local\Temp\72df2aec1ffc4aa6b345c79159ba506ce4bbc0dfe9e0ff15b7cc1ede56bac281.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:2004

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

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:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
74847afef439644a3d43bb4582af0856

SHA1
6ec742de6c682edfb6590a66f04afb97e002d182

SHA256
828d3918b5ff511ff79ee89f70ead9d99b0d8d7f9400544bec83966084ea8395

SHA512
e6d917444bdb128c85dcc43c54bec54f06cda7dc0b5ac28a8a431e5dd45a862d764c58f88a5cf69cec8fd5d54d1571970160cda745fc0e50df60c770fb456c85

Download Submit
memory/2004-37-0x00000000006A0000-0x0000000000722000-memory.dmp

Filesize
520KB

Download
memory/2004-51-0x00000000006A0000-0x0000000000722000-memory.dmp

Filesize
520KB

Download
memory/2004-56-0x00000000006A0000-0x0000000000722000-memory.dmp

Filesize
520KB

Download
memory/2004-49-0x00000000006A0000-0x0000000000722000-memory.dmp

Filesize
520KB

Download
memory/2004-13-0x00000000006A0000-0x0000000000722000-memory.dmp

Filesize
520KB

Download
memory/2004-17-0x0000000000400000-0x000000000069A000-memory.dmp

Filesize
2.6MB

Download
memory/2004-16-0x00000000006A0000-0x0000000000722000-memory.dmp

Filesize
520KB

Download
memory/2004-12-0x00000000006A0000-0x0000000000722000-memory.dmp

Filesize
520KB

Download
memory/2004-11-0x00000000006A0000-0x0000000000722000-memory.dmp

Filesize
520KB

Download
memory/2004-18-0x00000000006A0000-0x0000000000722000-memory.dmp

Filesize
520KB

Download
memory/2004-44-0x00000000006A0000-0x0000000000722000-memory.dmp

Filesize
520KB

Download
memory/2004-7-0x00000000006A0000-0x0000000000722000-memory.dmp

Filesize
520KB

Download
memory/2004-57-0x00000000006A0000-0x0000000000722000-memory.dmp

Filesize
520KB

Download
memory/2004-43-0x00000000006A0000-0x0000000000722000-memory.dmp

Filesize
520KB

Download
memory/2004-30-0x00000000006A0000-0x0000000000722000-memory.dmp

Filesize
520KB

Download
memory/2004-24-0x00000000006A0000-0x0000000000722000-memory.dmp

Filesize
520KB

Download
memory/2004-25-0x00000000006A0000-0x0000000000722000-memory.dmp

Filesize
520KB

Download
memory/2004-38-0x00000000006A0000-0x0000000000722000-memory.dmp

Filesize
520KB

Download
memory/2004-31-0x00000000006A0000-0x0000000000722000-memory.dmp

Filesize
520KB

Download
memory/4912-19-0x000000000040A000-0x0000000000423000-memory.dmp

Filesize
100KB

Download
memory/4912-1-0x000000000040A000-0x0000000000423000-memory.dmp

Filesize
100KB

Download
memory/4912-0-0x0000000000400000-0x000000000069A000-memory.dmp

Filesize
2.6MB

Download
memory/4912-5-0x0000000000400000-0x000000000069A000-memory.dmp

Filesize
2.6MB

Download
memory/4912-8-0x0000000000400000-0x000000000069A000-memory.dmp

Filesize
2.6MB

Download
memory/4912-10-0x0000000000400000-0x000000000069A000-memory.dmp

Filesize
2.6MB

Download
memory/4912-4-0x0000000000400000-0x000000000069A000-memory.dmp

Filesize
2.6MB

Download
memory/4912-6-0x0000000000400000-0x000000000069A000-memory.dmp

Filesize
2.6MB

Download
memory/4912-3-0x0000000000400000-0x000000000069A000-memory.dmp

Filesize
2.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads