remcos | e115cd3f7f9fb0d34d8ddb909da419a93ff441fd0c6a787afe9c130b03f6ff5e

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
20-12-2024 08:24

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General

Target

e115cd3f7f9fb0d34d8ddb909da419a93ff441fd0c6a787afe9c130b03f6ff5e.exe
Size

769KB
MD5

671511be5b85255dfa91e293872f0415
SHA1

5d8966f23dcce287188fbd72fe632695162e6020
SHA256

e115cd3f7f9fb0d34d8ddb909da419a93ff441fd0c6a787afe9c130b03f6ff5e
SHA512

3b35a5b5e28d759436ce4aa7b31a799b3543ffa3257127db2055146002d37b598e0fe06342f5dc8415772192f43255a18a57f4c5fb80a187db60db008eabd458
SSDEEP

12288:luD09AUkNIGBYYv4eK13x13nZHSRVMf139F5wIB7+IwtHwBtVxbesvZDS3nRNhtT:I09AfNIEYsunZvZ19ZGhtehTlssS

Score

10^/10

remcos aws2_sv discovery rat

Malware Config

Extracted

Family

remcos

Botnet

Aws2_sv

154.3.39.18:3306

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
Aws2_sv-NHH6H3
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 1700 set thread context of 4060	1700	e115cd3f7f9fb0d34d8ddb909da419a93ff441fd0c6a787afe9c130b03f6ff5e.exe	83

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	e115cd3f7f9fb0d34d8ddb909da419a93ff441fd0c6a787afe9c130b03f6ff5e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	iexplore.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1700	e115cd3f7f9fb0d34d8ddb909da419a93ff441fd0c6a787afe9c130b03f6ff5e.exe
1700	e115cd3f7f9fb0d34d8ddb909da419a93ff441fd0c6a787afe9c130b03f6ff5e.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1700	e115cd3f7f9fb0d34d8ddb909da419a93ff441fd0c6a787afe9c130b03f6ff5e.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1700 wrote to memory of 4060	1700	e115cd3f7f9fb0d34d8ddb909da419a93ff441fd0c6a787afe9c130b03f6ff5e.exe	83
PID 1700 wrote to memory of 4060	1700	e115cd3f7f9fb0d34d8ddb909da419a93ff441fd0c6a787afe9c130b03f6ff5e.exe	83
PID 1700 wrote to memory of 4060	1700	e115cd3f7f9fb0d34d8ddb909da419a93ff441fd0c6a787afe9c130b03f6ff5e.exe	83
PID 1700 wrote to memory of 4060	1700	e115cd3f7f9fb0d34d8ddb909da419a93ff441fd0c6a787afe9c130b03f6ff5e.exe	83

C:\Users\Admin\AppData\Local\Temp\e115cd3f7f9fb0d34d8ddb909da419a93ff441fd0c6a787afe9c130b03f6ff5e.exe
"C:\Users\Admin\AppData\Local\Temp\e115cd3f7f9fb0d34d8ddb909da419a93ff441fd0c6a787afe9c130b03f6ff5e.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1700
- \??\c:\program files (x86)\internet explorer\iexplore.exe
  "c:\program files (x86)\internet explorer\iexplore.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4060

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/4060-0-0x0000000001360000-0x0000000001425000-memory.dmp

Filesize
788KB

Download
memory/4060-2-0x0000000001360000-0x0000000001425000-memory.dmp

Filesize
788KB

Download
memory/4060-1-0x0000000001360000-0x0000000001425000-memory.dmp

Filesize
788KB

Download
memory/4060-3-0x0000000001360000-0x0000000001425000-memory.dmp

Filesize
788KB

Download
memory/4060-4-0x0000000001360000-0x0000000001425000-memory.dmp

Filesize
788KB

Download
memory/4060-5-0x0000000001360000-0x0000000001425000-memory.dmp

Filesize
788KB

Download
memory/4060-6-0x0000000001360000-0x0000000001425000-memory.dmp

Filesize
788KB

Download
memory/4060-7-0x0000000001360000-0x0000000001425000-memory.dmp

Filesize
788KB

Download
memory/4060-8-0x0000000001360000-0x0000000001425000-memory.dmp

Filesize
788KB

Download
memory/4060-10-0x0000000001360000-0x0000000001425000-memory.dmp

Filesize
788KB

Download
memory/4060-11-0x0000000001360000-0x0000000001425000-memory.dmp

Filesize
788KB

Download
memory/4060-12-0x0000000001360000-0x0000000001425000-memory.dmp

Filesize
788KB

Download
memory/4060-13-0x0000000001360000-0x0000000001425000-memory.dmp

Filesize
788KB

Download
memory/4060-14-0x0000000001360000-0x0000000001425000-memory.dmp

Filesize
788KB

Download
memory/4060-15-0x0000000001360000-0x0000000001425000-memory.dmp

Filesize
788KB

Download
memory/4060-17-0x0000000001360000-0x0000000001425000-memory.dmp

Filesize
788KB

Download
memory/4060-16-0x0000000001360000-0x0000000001425000-memory.dmp

Filesize
788KB

Download
memory/4060-18-0x0000000001360000-0x0000000001425000-memory.dmp

Filesize
788KB

Download
memory/4060-19-0x0000000001360000-0x0000000001425000-memory.dmp

Filesize
788KB

Download