remcos | 5f7ac4725bab548c7156a9c88b33d24e95a3b5573dae7d0ef44a274fce5edbfd

Analysis

max time kernel
297s
max time network
290s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
07/11/2024, 13:55

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General

Target

jRS58gA3ORlzhh9.exe
Size

1.1MB
MD5

8e21ecb9b132941be47b360c2945eedc
SHA1

b3134276ce8e12e08ccdf3854421104c01a7640b
SHA256

36d845d44507c1bcc6e6c29ef91b6c89469c9c3b10c2a642eb30b584b02a7597
SHA512

a097955b7fcc10594e7c0990cb011894f0c65349ee555523459579472bcaa16a657a9919716f1ff0964cc6dfbc1c55f88eb6bf4d1a04efbc463f9d574aca3b41
SSDEEP

24576:Pq0qbmNg/ZX/vf5ygFeg2PIti0HMkJbJRCtR2jakqP:Pqlma/VvBygFTft3HMoY2jakqP

Score

10^/10

remcos remotehost discovery rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

192.3.64.152:2559

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-35QZU7
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 4080 set thread context of 3572	4080	jRS58gA3ORlzhh9.exe	100

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	jRS58gA3ORlzhh9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	jRS58gA3ORlzhh9.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4080	jRS58gA3ORlzhh9.exe
4080	jRS58gA3ORlzhh9.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4080	jRS58gA3ORlzhh9.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 4080 wrote to memory of 2388	4080	jRS58gA3ORlzhh9.exe	99
PID 4080 wrote to memory of 2388	4080	jRS58gA3ORlzhh9.exe	99
PID 4080 wrote to memory of 2388	4080	jRS58gA3ORlzhh9.exe	99
PID 4080 wrote to memory of 3572	4080	jRS58gA3ORlzhh9.exe	100
PID 4080 wrote to memory of 3572	4080	jRS58gA3ORlzhh9.exe	100
PID 4080 wrote to memory of 3572	4080	jRS58gA3ORlzhh9.exe	100
PID 4080 wrote to memory of 3572	4080	jRS58gA3ORlzhh9.exe	100
PID 4080 wrote to memory of 3572	4080	jRS58gA3ORlzhh9.exe	100
PID 4080 wrote to memory of 3572	4080	jRS58gA3ORlzhh9.exe	100
PID 4080 wrote to memory of 3572	4080	jRS58gA3ORlzhh9.exe	100
PID 4080 wrote to memory of 3572	4080	jRS58gA3ORlzhh9.exe	100
PID 4080 wrote to memory of 3572	4080	jRS58gA3ORlzhh9.exe	100
PID 4080 wrote to memory of 3572	4080	jRS58gA3ORlzhh9.exe	100
PID 4080 wrote to memory of 3572	4080	jRS58gA3ORlzhh9.exe	100
PID 4080 wrote to memory of 3572	4080	jRS58gA3ORlzhh9.exe	100

C:\Users\Admin\AppData\Local\Temp\jRS58gA3ORlzhh9.exe
"C:\Users\Admin\AppData\Local\Temp\jRS58gA3ORlzhh9.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4080
- C:\Users\Admin\AppData\Local\Temp\jRS58gA3ORlzhh9.exe
  "C:\Users\Admin\AppData\Local\Temp\jRS58gA3ORlzhh9.exe"
  2⤵
  PID:2388
- C:\Users\Admin\AppData\Local\Temp\jRS58gA3ORlzhh9.exe
  "C:\Users\Admin\AppData\Local\Temp\jRS58gA3ORlzhh9.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3572

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/3572-30-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3572-31-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3572-42-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3572-41-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3572-38-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3572-37-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3572-36-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3572-35-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3572-34-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3572-21-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3572-33-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3572-11-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3572-12-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3572-14-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3572-15-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3572-16-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3572-17-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3572-32-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3572-19-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3572-20-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3572-29-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3572-24-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3572-25-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3572-26-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3572-27-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3572-28-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4080-9-0x0000000006640000-0x000000000665C000-memory.dmp

Filesize
112KB

Download
memory/4080-0-0x000000007468E000-0x000000007468F000-memory.dmp

Filesize
4KB

Download
memory/4080-1-0x0000000000730000-0x000000000084C000-memory.dmp

Filesize
1.1MB

Download
memory/4080-18-0x0000000074680000-0x0000000074E30000-memory.dmp

Filesize
7.7MB

Download
memory/4080-10-0x000000000AB80000-0x000000000AC40000-memory.dmp

Filesize
768KB

Download
memory/4080-8-0x0000000074680000-0x0000000074E30000-memory.dmp

Filesize
7.7MB

Download
memory/4080-7-0x000000007468E000-0x000000007468F000-memory.dmp

Filesize
4KB

Download
memory/4080-6-0x00000000054D0000-0x000000000556C000-memory.dmp

Filesize
624KB

Download
memory/4080-5-0x0000000074680000-0x0000000074E30000-memory.dmp

Filesize
7.7MB

Download
memory/4080-4-0x00000000053E0000-0x00000000053EA000-memory.dmp

Filesize
40KB

Download
memory/4080-3-0x0000000005230000-0x00000000052C2000-memory.dmp

Filesize
584KB

Download
memory/4080-2-0x00000000056F0000-0x0000000005C94000-memory.dmp

Filesize
5.6MB

Download