remcos | f3646ac33546540137231400c43e90525e2bc6fad1ba2c27cb56466c65bd58b3

General

Target

f3646ac33546540137231400c43e90525e2bc6fad1ba2c27cb56466c65bd58b3.exe
Size

8.4MB
MD5

7119698425e2056d404e97b12ed5ca37
SHA1

47ebc0744e88fbe12876471b49f4df80195f428a
SHA256

f3646ac33546540137231400c43e90525e2bc6fad1ba2c27cb56466c65bd58b3
SHA512

817eb34af541cd6b7b0a67e8d09668014c3fe9e43cb4df355840a2f7529853a8e34ca6d9af3e9b35137c7e13a6de98874dff50b962dc1d10b4e2a3041a9efede
SSDEEP

98304:Gnbgpe4NdaEMybVR/XfJca1tzZdBTXuOMehkf9O:WUpe4qiJdxcg/

Score

10^/10

remcos rosas discovery persistence rat

Malware Config

Extracted

Family

remcos

Botnet

ROSAS

C2

newstaticfreepoint24.ddns-ip.net:3020

Attributes

audio_folder
MicRecords
audio_path
ApplicationPath
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
registros.dat
keylog_flag
false
keylog_folder
data
mouse_option
false
mutex
kljjbdlcjbavhbiluiewliuwqerlib-DDZVN3
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Capturas de pantalla
screenshot_path
%AppData%
screenshot_time
10
startup_value
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

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-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\VSCode = "C:\\Users\\Admin\\Favorites\\VS Code\\user-data\\Code.exe"	f3646ac33546540137231400c43e90525e2bc6fad1ba2c27cb56466c65bd58b3.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	f3646ac33546540137231400c43e90525e2bc6fad1ba2c27cb56466c65bd58b3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f3646ac33546540137231400c43e90525e2bc6fad1ba2c27cb56466c65bd58b3.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2832	f3646ac33546540137231400c43e90525e2bc6fad1ba2c27cb56466c65bd58b3.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3032 wrote to memory of 2832	3032	f3646ac33546540137231400c43e90525e2bc6fad1ba2c27cb56466c65bd58b3.exe	30
PID 3032 wrote to memory of 2832	3032	f3646ac33546540137231400c43e90525e2bc6fad1ba2c27cb56466c65bd58b3.exe	30
PID 3032 wrote to memory of 2832	3032	f3646ac33546540137231400c43e90525e2bc6fad1ba2c27cb56466c65bd58b3.exe	30
PID 3032 wrote to memory of 2832	3032	f3646ac33546540137231400c43e90525e2bc6fad1ba2c27cb56466c65bd58b3.exe	30
PID 3032 wrote to memory of 2832	3032	f3646ac33546540137231400c43e90525e2bc6fad1ba2c27cb56466c65bd58b3.exe	30
PID 3032 wrote to memory of 2832	3032	f3646ac33546540137231400c43e90525e2bc6fad1ba2c27cb56466c65bd58b3.exe	30

C:\Users\Admin\AppData\Local\Temp\f3646ac33546540137231400c43e90525e2bc6fad1ba2c27cb56466c65bd58b3.exe
"C:\Users\Admin\AppData\Local\Temp\f3646ac33546540137231400c43e90525e2bc6fad1ba2c27cb56466c65bd58b3.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3032
- C:\Users\Admin\AppData\Local\Temp\f3646ac33546540137231400c43e90525e2bc6fad1ba2c27cb56466c65bd58b3.exe
  "C:\Users\Admin\AppData\Local\Temp\f3646ac33546540137231400c43e90525e2bc6fad1ba2c27cb56466c65bd58b3.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:2832

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\data\registros.dat

Filesize
184B

MD5
17bc4a23537e0b16a8c75c732dce1802

SHA1
38ae55ac910f2f36ef24b4c2179d0ef81c042aca

SHA256
d19f710485245c8224aa92d1daffde48d31e9a80b42f85297611f0eb526caf82

SHA512
75e0bf7090756d977abe212e3ebba2dcf636f09f03d205ac7fed1d7b4a9bdd7ce224f9458a6160f8f387f20d54abb0002ac16ff97c7fa157ca12aebd8d6418cf

Download Submit
memory/2832-19-0x00000000001B0000-0x000000000022F000-memory.dmp

Filesize
508KB

Download
memory/2832-4-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2832-6-0x00000000001B0000-0x000000000022F000-memory.dmp

Filesize
508KB

Download
memory/2832-2-0x00000000001B0000-0x000000000022F000-memory.dmp

Filesize
508KB

Download
memory/2832-8-0x00000000001B0000-0x000000000022F000-memory.dmp

Filesize
508KB

Download
memory/2832-9-0x00000000001B0000-0x000000000022F000-memory.dmp

Filesize
508KB

Download
memory/2832-12-0x00000000001B0000-0x000000000022F000-memory.dmp

Filesize
508KB

Download
memory/2832-13-0x0000000000400000-0x0000000000C6C000-memory.dmp

Filesize
8.4MB

Download
memory/2832-46-0x00000000001B0000-0x000000000022F000-memory.dmp

Filesize
508KB

Download
memory/2832-14-0x00000000001B0000-0x000000000022F000-memory.dmp

Filesize
508KB

Download
memory/2832-25-0x00000000001B0000-0x000000000022F000-memory.dmp

Filesize
508KB

Download
memory/2832-45-0x00000000001B0000-0x000000000022F000-memory.dmp

Filesize
508KB

Download
memory/2832-20-0x00000000001B0000-0x000000000022F000-memory.dmp

Filesize
508KB

Download
memory/2832-27-0x00000000001B0000-0x000000000022F000-memory.dmp

Filesize
508KB

Download
memory/2832-32-0x00000000001B0000-0x000000000022F000-memory.dmp

Filesize
508KB

Download
memory/2832-33-0x00000000001B0000-0x000000000022F000-memory.dmp

Filesize
508KB

Download
memory/2832-38-0x00000000001B0000-0x000000000022F000-memory.dmp

Filesize
508KB

Download
memory/2832-39-0x00000000001B0000-0x000000000022F000-memory.dmp

Filesize
508KB

Download
memory/3032-1-0x0000000000400000-0x0000000000C6C000-memory.dmp

Filesize
8.4MB

Download
memory/3032-0-0x000000000082B000-0x000000000082F000-memory.dmp

Filesize
16KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads