remcos | e115cd3f7f9fb0d34d8ddb909da419a93ff441fd0c6a787afe9c130b03f6ff5e

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

C2

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 4848 set thread context of 1000	4848	e115cd3f7f9fb0d34d8ddb909da419a93ff441fd0c6a787afe9c130b03f6ff5e.exe	84

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
4848	e115cd3f7f9fb0d34d8ddb909da419a93ff441fd0c6a787afe9c130b03f6ff5e.exe
4848	e115cd3f7f9fb0d34d8ddb909da419a93ff441fd0c6a787afe9c130b03f6ff5e.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
4848	e115cd3f7f9fb0d34d8ddb909da419a93ff441fd0c6a787afe9c130b03f6ff5e.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4848 wrote to memory of 1000	4848	e115cd3f7f9fb0d34d8ddb909da419a93ff441fd0c6a787afe9c130b03f6ff5e.exe	84
PID 4848 wrote to memory of 1000	4848	e115cd3f7f9fb0d34d8ddb909da419a93ff441fd0c6a787afe9c130b03f6ff5e.exe	84
PID 4848 wrote to memory of 1000	4848	e115cd3f7f9fb0d34d8ddb909da419a93ff441fd0c6a787afe9c130b03f6ff5e.exe	84
PID 4848 wrote to memory of 1000	4848	e115cd3f7f9fb0d34d8ddb909da419a93ff441fd0c6a787afe9c130b03f6ff5e.exe	84

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:4848
- \??\c:\program files (x86)\internet explorer\iexplore.exe
  "c:\program files (x86)\internet explorer\iexplore.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1000

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1000-1-0x0000000001300000-0x00000000013C5000-memory.dmp

Filesize
788KB

Download
memory/1000-0-0x0000000001300000-0x00000000013C5000-memory.dmp

Filesize
788KB

Download
memory/1000-2-0x0000000001300000-0x00000000013C5000-memory.dmp

Filesize
788KB

Download
memory/1000-4-0x0000000001300000-0x00000000013C5000-memory.dmp

Filesize
788KB

Download
memory/1000-5-0x0000000001300000-0x00000000013C5000-memory.dmp

Filesize
788KB

Download
memory/1000-3-0x0000000001300000-0x00000000013C5000-memory.dmp

Filesize
788KB

Download
memory/1000-6-0x0000000001300000-0x00000000013C5000-memory.dmp

Filesize
788KB

Download
memory/1000-7-0x0000000001300000-0x00000000013C5000-memory.dmp

Filesize
788KB

Download
memory/1000-8-0x0000000001300000-0x00000000013C5000-memory.dmp

Filesize
788KB

Download
memory/1000-9-0x0000000001300000-0x00000000013C5000-memory.dmp

Filesize
788KB

Download
memory/1000-10-0x0000000001300000-0x00000000013C5000-memory.dmp

Filesize
788KB

Download
memory/1000-11-0x0000000001300000-0x00000000013C5000-memory.dmp

Filesize
788KB

Download
memory/1000-13-0x0000000001300000-0x00000000013C5000-memory.dmp

Filesize
788KB

Download
memory/1000-14-0x0000000001300000-0x00000000013C5000-memory.dmp

Filesize
788KB

Download
memory/1000-15-0x0000000001300000-0x00000000013C5000-memory.dmp

Filesize
788KB

Download
memory/1000-16-0x0000000001300000-0x00000000013C5000-memory.dmp

Filesize
788KB

Download
memory/1000-17-0x0000000001300000-0x00000000013C5000-memory.dmp

Filesize
788KB

Download
memory/1000-18-0x0000000001300000-0x00000000013C5000-memory.dmp

Filesize
788KB

Download
memory/1000-19-0x0000000001300000-0x00000000013C5000-memory.dmp

Filesize
788KB

Download
memory/1000-20-0x0000000001300000-0x00000000013C5000-memory.dmp

Filesize
788KB

Download
memory/1000-21-0x0000000001300000-0x00000000013C5000-memory.dmp

Filesize
788KB

Download

Analysis

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