remcos | c413b5fc353f566a47c17c56b69b2cc7b33e048673b78678d33b3aa8804d1d08

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
14-11-2024 19:57

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

c413b5fc353f566a47c17c56b69b2cc7b33e048673b78678d33b3aa8804d1d08.exe
Size

2.6MB
MD5

8e921737fd53f5a40e982495f0c7c3c9
SHA1

c46e2cae95d387f64964fa000b8daff2f646bdbb
SHA256

c413b5fc353f566a47c17c56b69b2cc7b33e048673b78678d33b3aa8804d1d08
SHA512

e767b00c4ea757b4af8dd0339260f5748d2475d5b94c6c2a83d20077990379068e8bf7bbfb7b2cf1015ad4f56968456131447ab63225975d2bb5cdb2535f0fdc
SSDEEP

49152:rTOYjy2jq6ZutrfM2IAIbu/GFcThB84muqmSj9TgM/rhiYO/CeQTWoNdjjEPOaDT:rBIknAIbuQ2mtnhiY8dT

Score

10^/10

remcos rojo discovery persistence rat

Malware Config

Extracted

Family

remcos

Botnet

ROJO

nuevodntestchec.addns.org:3018

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
jjajbsfbisfablklsafg-LEIC4X
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
Downloads MZ/PE file

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

c413b5fc353f566a47c17c56b69b2cc7b33e048673b78678d33b3aa8804d1d08.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SteganosSafe = "C:\\Users\\Admin\\Videos\\SteganosSafe\\SafeVideo.exe"	c413b5fc353f566a47c17c56b69b2cc7b33e048673b78678d33b3aa8804d1d08.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

c413b5fc353f566a47c17c56b69b2cc7b33e048673b78678d33b3aa8804d1d08.execsc.exe

description	pid	process	target process
PID 2764 set thread context of 220	2764	c413b5fc353f566a47c17c56b69b2cc7b33e048673b78678d33b3aa8804d1d08.exe	csc.exe
PID 220 set thread context of 5572	220	csc.exe	MSBuild.exe

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

Processes:

c413b5fc353f566a47c17c56b69b2cc7b33e048673b78678d33b3aa8804d1d08.execsc.exeMSBuild.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c413b5fc353f566a47c17c56b69b2cc7b33e048673b78678d33b3aa8804d1d08.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MSBuild.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

csc.exe

description pid process

Token: SeDebugPrivilege 220 csc.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

MSBuild.exe

pid process

5572 MSBuild.exe

description	pid	process
Token: SeDebugPrivilege	220	csc.exe

pid	process
5572	MSBuild.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

c413b5fc353f566a47c17c56b69b2cc7b33e048673b78678d33b3aa8804d1d08.execsc.exe

description	pid	process	target process
PID 2764 wrote to memory of 220	2764	c413b5fc353f566a47c17c56b69b2cc7b33e048673b78678d33b3aa8804d1d08.exe	csc.exe
PID 2764 wrote to memory of 220	2764	c413b5fc353f566a47c17c56b69b2cc7b33e048673b78678d33b3aa8804d1d08.exe	csc.exe
PID 2764 wrote to memory of 220	2764	c413b5fc353f566a47c17c56b69b2cc7b33e048673b78678d33b3aa8804d1d08.exe	csc.exe
PID 2764 wrote to memory of 220	2764	c413b5fc353f566a47c17c56b69b2cc7b33e048673b78678d33b3aa8804d1d08.exe	csc.exe
PID 2764 wrote to memory of 220	2764	c413b5fc353f566a47c17c56b69b2cc7b33e048673b78678d33b3aa8804d1d08.exe	csc.exe
PID 220 wrote to memory of 5572	220	csc.exe	MSBuild.exe
PID 220 wrote to memory of 5572	220	csc.exe	MSBuild.exe
PID 220 wrote to memory of 5572	220	csc.exe	MSBuild.exe
PID 220 wrote to memory of 5572	220	csc.exe	MSBuild.exe
PID 220 wrote to memory of 5572	220	csc.exe	MSBuild.exe
PID 220 wrote to memory of 5572	220	csc.exe	MSBuild.exe
PID 220 wrote to memory of 5572	220	csc.exe	MSBuild.exe
PID 220 wrote to memory of 5572	220	csc.exe	MSBuild.exe
PID 220 wrote to memory of 5572	220	csc.exe	MSBuild.exe
PID 220 wrote to memory of 5572	220	csc.exe	MSBuild.exe

C:\Users\Admin\AppData\Local\Temp\c413b5fc353f566a47c17c56b69b2cc7b33e048673b78678d33b3aa8804d1d08.exe
"C:\Users\Admin\AppData\Local\Temp\c413b5fc353f566a47c17c56b69b2cc7b33e048673b78678d33b3aa8804d1d08.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2764
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:220
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    PID:5572

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\ProgramData\data\registros.dat

Filesize
184B

MD5
85846c3074f3273b7dfaead3b06cb609

SHA1
c9265a2b0f1b8ed42cd56fc5141cb13f0ced293d

SHA256
e1e1a2810bdb9cae7f5acdf742375271ae79ccae0a5a78d3b4875d15675e43d8

SHA512
68c604ca7c4f75b92b490c4f94ccaeace13865faa40cfee80d1a437169d15d4a6c0c5cbc861ab65bf83261384a8a704770441045159b2c78450cf1de909260a3

Download Submit
memory/220-33-0x0000000004F90000-0x000000000505E000-memory.dmp

Filesize
824KB

Download
memory/220-65-0x0000000004F90000-0x000000000505E000-memory.dmp

Filesize
824KB

Download
memory/220-31-0x0000000004F90000-0x000000000505E000-memory.dmp

Filesize
824KB

Download
memory/220-15-0x0000000004F90000-0x000000000505E000-memory.dmp

Filesize
824KB

Download
memory/220-29-0x0000000004F90000-0x000000000505E000-memory.dmp

Filesize
824KB

Download
memory/220-9-0x000000007497E000-0x000000007497F000-memory.dmp

Filesize
4KB

Download
memory/220-3932-0x0000000005920000-0x0000000005974000-memory.dmp

Filesize
336KB

Download
memory/220-58-0x0000000004F90000-0x000000000505E000-memory.dmp

Filesize
824KB

Download
memory/220-63-0x0000000004F90000-0x000000000505E000-memory.dmp

Filesize
824KB

Download
memory/220-61-0x0000000004F90000-0x000000000505E000-memory.dmp

Filesize
824KB

Download
memory/220-59-0x0000000004F90000-0x000000000505E000-memory.dmp

Filesize
824KB

Download
memory/220-55-0x0000000004F90000-0x000000000505E000-memory.dmp

Filesize
824KB

Download
memory/220-53-0x0000000004F90000-0x000000000505E000-memory.dmp

Filesize
824KB

Download
memory/220-49-0x0000000004F90000-0x000000000505E000-memory.dmp

Filesize
824KB

Download
memory/220-47-0x0000000004F90000-0x000000000505E000-memory.dmp

Filesize
824KB

Download
memory/220-52-0x0000000004F90000-0x000000000505E000-memory.dmp

Filesize
824KB

Download
memory/220-43-0x0000000004F90000-0x000000000505E000-memory.dmp

Filesize
824KB

Download
memory/220-41-0x0000000004F90000-0x000000000505E000-memory.dmp

Filesize
824KB

Download
memory/220-67-0x0000000004F90000-0x000000000505E000-memory.dmp

Filesize
824KB

Download
memory/220-3927-0x0000000005110000-0x0000000005166000-memory.dmp

Filesize
344KB

Download
memory/220-39-0x0000000004F90000-0x000000000505E000-memory.dmp

Filesize
824KB

Download
memory/220-37-0x0000000004F90000-0x000000000505E000-memory.dmp

Filesize
824KB

Download
memory/220-35-0x0000000004F90000-0x000000000505E000-memory.dmp

Filesize
824KB

Download
memory/220-6-0x0000000000680000-0x0000000000724000-memory.dmp

Filesize
656KB

Download
memory/220-11-0x0000000074970000-0x0000000075120000-memory.dmp

Filesize
7.7MB

Download
memory/220-10-0x0000000004F90000-0x0000000005064000-memory.dmp

Filesize
848KB

Download
memory/220-45-0x0000000004F90000-0x000000000505E000-memory.dmp

Filesize
824KB

Download
memory/220-27-0x0000000004F90000-0x000000000505E000-memory.dmp

Filesize
824KB

Download
memory/220-25-0x0000000004F90000-0x000000000505E000-memory.dmp

Filesize
824KB

Download
memory/220-23-0x0000000004F90000-0x000000000505E000-memory.dmp

Filesize
824KB

Download
memory/220-21-0x0000000004F90000-0x000000000505E000-memory.dmp

Filesize
824KB

Download
memory/220-19-0x0000000004F90000-0x000000000505E000-memory.dmp

Filesize
824KB

Download
memory/220-17-0x0000000004F90000-0x000000000505E000-memory.dmp

Filesize
824KB

Download
memory/220-12-0x0000000004F90000-0x000000000505E000-memory.dmp

Filesize
824KB

Download
memory/220-13-0x0000000004F90000-0x000000000505E000-memory.dmp

Filesize
824KB

Download
memory/220-3931-0x0000000074970000-0x0000000075120000-memory.dmp

Filesize
7.7MB

Download
memory/220-3930-0x000000007497E000-0x000000007497F000-memory.dmp

Filesize
4KB

Download
memory/220-3929-0x0000000005280000-0x00000000052E6000-memory.dmp

Filesize
408KB

Download
memory/220-3928-0x0000000005170000-0x00000000051BC000-memory.dmp

Filesize
304KB

Download
memory/2764-1-0x000000000042F000-0x0000000000448000-memory.dmp

Filesize
100KB

Download
memory/2764-1582-0x000000000042F000-0x0000000000448000-memory.dmp

Filesize
100KB

Download
memory/2764-7-0x0000000000400000-0x00000000006A9000-memory.dmp

Filesize
2.7MB

Download
memory/2764-8-0x0000000000400000-0x00000000006A9000-memory.dmp

Filesize
2.7MB

Download
memory/2764-2-0x0000000000400000-0x00000000006A9000-memory.dmp

Filesize
2.7MB

Download
memory/2764-5-0x0000000000400000-0x00000000006A9000-memory.dmp

Filesize
2.7MB

Download
memory/2764-4-0x0000000000400000-0x00000000006A9000-memory.dmp

Filesize
2.7MB

Download
memory/2764-3-0x0000000000400000-0x00000000006A9000-memory.dmp

Filesize
2.7MB

Download
memory/2764-0-0x0000000000400000-0x00000000006A9000-memory.dmp

Filesize
2.7MB

Download
memory/5572-3937-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/5572-3951-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download