remcos | fbb1c5811042bfe6fbc3329c17e2bbb75279d315777768ef6b835a85e9331ef2

Analysis

max time kernel
30s
max time network
36s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
18-02-2025 19:31

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General

Target

quarantine/ht.exe
Size

482KB
MD5

e2f3d65d4b25ca3a10e41a7159b40c13
SHA1

3e451e4e3ebfb7504a6a7fde29b99f4c56842cb9
SHA256

29297e99d5e000d6a21dd2ffa542d100f5f737d1317b49fb8057194706934ce5
SHA512

31fb654fcf245947286cfa8e812185db52f4edd59b335a140b0c9a84427b41737cb3e75a4ef3dd9e218665ffd452b27b3797c502edd329add4c8f6b2a8be1ff3
SSDEEP

12288:913ak/mBXTG4/1v08KI7ZnMEF76JqmsvZQqS:Xak/mBXTV/R0nEF76gFZp

Score

10^/10

remcos hotel discovery rat

Malware Config

Extracted

Family

remcos

Botnet

hotel

rm.bizvally.net:3397

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
logs.dat
keylog_flag
false
keylog_folder
remcos
mouse_option
false
mutex
Rmc-5ITRQT
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
Remcos family
remcos

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2548 set thread context of 2568	2548	ht.exe	30

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	ht.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2548	ht.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2548 wrote to memory of 2568	2548	ht.exe	30
PID 2548 wrote to memory of 2568	2548	ht.exe	30
PID 2548 wrote to memory of 2568	2548	ht.exe	30
PID 2548 wrote to memory of 2568	2548	ht.exe	30
PID 2548 wrote to memory of 2568	2548	ht.exe	30

C:\Users\Admin\AppData\Local\Temp\quarantine\ht.exe
"C:\Users\Admin\AppData\Local\Temp\quarantine\ht.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2548
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  PID:2568

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

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Downloads

memory/2568-4-0x0000000000150000-0x00000000001D0000-memory.dmp

Filesize
512KB

Download
memory/2568-3-0x0000000000150000-0x00000000001D0000-memory.dmp

Filesize
512KB

Download
memory/2568-0-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2568-5-0x0000000000150000-0x00000000001D0000-memory.dmp

Filesize
512KB

Download