remcos | a93be364ac6aa354b7ee5160dc3c99248d42947bb871bf1c6211d090ffc5e375

Analysis

max time kernel
149s
max time network
137s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
02-09-2024 23:57

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General

Target

rurs.exe
Size

1.4MB
MD5

7dfdd2e237862c9d60fd49643886afc4
SHA1

4a7bd82de5b3f0a3a20d04536611f52f87e3c42f
SHA256

a93be364ac6aa354b7ee5160dc3c99248d42947bb871bf1c6211d090ffc5e375
SHA512

11a519a0edd586e5df7bdd57dc9e7ceb633eb22adf6b6861da96170ede14c07404878ec4bc22b4c0f13e08ff6a0eb04ee3df20fdbb6d4173cd25491e0e8e28fc
SSDEEP

24576:aqDEvCTbMWu7rQYlBQcBiT6rprG8aCAoxYwlhQKkhWkW8w7nGjZHd9Cmy:aTvC/MTQYxsWR7aCAAYwltQWkWpyj/R

Score

10^/10

remcos remotehost discovery rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

23.95.235.18:2557

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-E0JKXE
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

System Location Discovery: System Language Discovery 1 TTPs 1 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	rurs.exe

Suspicious use of FindShellTrayWindow 6 IoCs

pid	Process
3992	rurs.exe
3992	rurs.exe
3992	rurs.exe
3992	rurs.exe
3992	rurs.exe
3992	rurs.exe

Suspicious use of SendNotifyMessage 6 IoCs

pid	Process
3992	rurs.exe
3992	rurs.exe
3992	rurs.exe
3992	rurs.exe
3992	rurs.exe
3992	rurs.exe

C:\Users\Admin\AppData\Local\Temp\rurs.exe
"C:\Users\Admin\AppData\Local\Temp\rurs.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:3992

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3992-11-0x00000000028A0000-0x00000000028A4000-memory.dmp

Filesize
16KB

Download
memory/3992-12-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3992-13-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3992-14-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3992-15-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3992-16-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3992-17-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3992-20-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3992-21-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3992-22-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3992-24-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3992-23-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3992-25-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3992-26-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3992-27-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3992-28-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3992-29-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3992-30-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download