remcos | 918c574b7b2841d4dfafd36d23940f4b5f9636ccfb483589ff7df63967ddcf87

General

Target

918c574b7b2841d4dfafd36d23940f4b5f9636ccfb483589ff7df63967ddcf87.exe
Size

5.2MB
MD5

c3c8e7b07e16739c1c0b79f5ff91479f
SHA1

5de5162c4f4c76a1fbcc281f26a02486f626f29a
SHA256

918c574b7b2841d4dfafd36d23940f4b5f9636ccfb483589ff7df63967ddcf87
SHA512

cef48c9be82f4db90c68443630d58084aae1aea054bca82803d51ab63226ca085e1c05b393505dd9442c832b1c59e6720ff217d61200ac9011159d145ac33ba4
SSDEEP

49152:/IFXei/uNQrNQDuNz6jk+1n+Vu1cJ+TsehmvK718uFvvPRSTp8UX6:/QN8DU6jn+V8/IeIA8u08UX6

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-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\userModel = "C:\\Users\\Admin\\Favorites\\my-web-app\\backend\\userModel.exe"	918c574b7b2841d4dfafd36d23940f4b5f9636ccfb483589ff7df63967ddcf87.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	918c574b7b2841d4dfafd36d23940f4b5f9636ccfb483589ff7df63967ddcf87.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	918c574b7b2841d4dfafd36d23940f4b5f9636ccfb483589ff7df63967ddcf87.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2712	918c574b7b2841d4dfafd36d23940f4b5f9636ccfb483589ff7df63967ddcf87.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 628 wrote to memory of 2712	628	918c574b7b2841d4dfafd36d23940f4b5f9636ccfb483589ff7df63967ddcf87.exe	94
PID 628 wrote to memory of 2712	628	918c574b7b2841d4dfafd36d23940f4b5f9636ccfb483589ff7df63967ddcf87.exe	94
PID 628 wrote to memory of 2712	628	918c574b7b2841d4dfafd36d23940f4b5f9636ccfb483589ff7df63967ddcf87.exe	94
PID 628 wrote to memory of 2712	628	918c574b7b2841d4dfafd36d23940f4b5f9636ccfb483589ff7df63967ddcf87.exe	94
PID 628 wrote to memory of 2712	628	918c574b7b2841d4dfafd36d23940f4b5f9636ccfb483589ff7df63967ddcf87.exe	94

C:\Users\Admin\AppData\Local\Temp\918c574b7b2841d4dfafd36d23940f4b5f9636ccfb483589ff7df63967ddcf87.exe
"C:\Users\Admin\AppData\Local\Temp\918c574b7b2841d4dfafd36d23940f4b5f9636ccfb483589ff7df63967ddcf87.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:628
- C:\Users\Admin\AppData\Local\Temp\918c574b7b2841d4dfafd36d23940f4b5f9636ccfb483589ff7df63967ddcf87.exe
  "C:\Users\Admin\AppData\Local\Temp\918c574b7b2841d4dfafd36d23940f4b5f9636ccfb483589ff7df63967ddcf87.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:2712

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
6741414e220e7048b9b4a1c854cfaa9f

SHA1
9d367574f4cf46498656416e3ae35cee4be16e2b

SHA256
5850b8b1ff11242b4ff0974c5716f0059e5aaccf0291f165d034d0357a09735e

SHA512
7cb02096cabb586766a2e5e6043c587be1e2cc3152586deb512b092f79f3379512de32b6f065988d0783615f62564dbf98868115bbb9728cdd08e834f0c5c59e

Download Submit
memory/628-0-0x000000000042F000-0x0000000000432000-memory.dmp

Filesize
12KB

Download
memory/628-1-0x0000000000400000-0x000000000093F000-memory.dmp

Filesize
5.2MB

Download
memory/2712-16-0x0000000000940000-0x00000000009BF000-memory.dmp

Filesize
508KB

Download
memory/2712-21-0x0000000000940000-0x00000000009BF000-memory.dmp

Filesize
508KB

Download
memory/2712-9-0x0000000000400000-0x000000000093F000-memory.dmp

Filesize
5.2MB

Download
memory/2712-5-0x0000000000940000-0x00000000009BF000-memory.dmp

Filesize
508KB

Download
memory/2712-2-0x0000000000940000-0x00000000009BF000-memory.dmp

Filesize
508KB

Download
memory/2712-10-0x0000000000940000-0x00000000009BF000-memory.dmp

Filesize
508KB

Download
memory/2712-15-0x0000000000940000-0x00000000009BF000-memory.dmp

Filesize
508KB

Download
memory/2712-3-0x0000000000940000-0x00000000009BF000-memory.dmp

Filesize
508KB

Download
memory/2712-4-0x0000000000940000-0x00000000009BF000-memory.dmp

Filesize
508KB

Download
memory/2712-8-0x0000000000940000-0x00000000009BF000-memory.dmp

Filesize
508KB

Download
memory/2712-22-0x0000000000940000-0x00000000009BF000-memory.dmp

Filesize
508KB

Download
memory/2712-28-0x0000000000940000-0x00000000009BF000-memory.dmp

Filesize
508KB

Download
memory/2712-29-0x0000000000940000-0x00000000009BF000-memory.dmp

Filesize
508KB

Download
memory/2712-34-0x0000000000940000-0x00000000009BF000-memory.dmp

Filesize
508KB

Download
memory/2712-35-0x0000000000940000-0x00000000009BF000-memory.dmp

Filesize
508KB

Download
memory/2712-40-0x0000000000940000-0x00000000009BF000-memory.dmp

Filesize
508KB

Download
memory/2712-42-0x0000000000940000-0x00000000009BF000-memory.dmp

Filesize
508KB

Download
memory/2712-47-0x0000000000940000-0x00000000009BF000-memory.dmp

Filesize
508KB

Download
memory/2712-48-0x0000000000940000-0x00000000009BF000-memory.dmp

Filesize
508KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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