remcos | 856ed906a0252eda990d48de86b734e45e3de1a30466a698e5e8f05e7f36518c

Analysis

max time kernel
147s
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
17-12-2024 21:09

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General

Target

856ed906a0252eda990d48de86b734e45e3de1a30466a698e5e8f05e7f36518c.exe
Size

1.3MB
MD5

fc0b616c9cb543fe6aa4db594ff80011
SHA1

aed4962dcd4653914d6edc21384461f0ecbe452f
SHA256

856ed906a0252eda990d48de86b734e45e3de1a30466a698e5e8f05e7f36518c
SHA512

3a5593e44133e5e178b51abc46ff6d4e50b6b420d3ac861a94c336a57e3ba676c3544ff10475b098ceb893e3baec752a768ab85c9a3d86b65d48606cadb708c4
SSDEEP

24576:eE3rxwfUa2PZYsoJmj9KgzxVCAITllk61O1133ZBEIIBWUixI9xKGAi1qbxb5PP:eE3qGSsoJIYBTY6141ZB8m2p+/PP

Score

10^/10

remcos bin discovery rat

Malware Config

Extracted

Family

remcos

Botnet

bin

cjmancool.dynamic-dns.net:3764

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-K9CJCH
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
Remcos
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 NtCreateUserProcessOtherParentProcess 1 IoCs

description	pid	Process	procid_target
PID 1608 created 3536	1608	856ed906a0252eda990d48de86b734e45e3de1a30466a698e5e8f05e7f36518c.exe	56

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\IsStatic.vbs	856ed906a0252eda990d48de86b734e45e3de1a30466a698e5e8f05e7f36518c.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1608 set thread context of 3656	1608	856ed906a0252eda990d48de86b734e45e3de1a30466a698e5e8f05e7f36518c.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	856ed906a0252eda990d48de86b734e45e3de1a30466a698e5e8f05e7f36518c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	InstallUtil.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1608	856ed906a0252eda990d48de86b734e45e3de1a30466a698e5e8f05e7f36518c.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1608	856ed906a0252eda990d48de86b734e45e3de1a30466a698e5e8f05e7f36518c.exe
Token: SeDebugPrivilege	1608	856ed906a0252eda990d48de86b734e45e3de1a30466a698e5e8f05e7f36518c.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1608 wrote to memory of 3656	1608	856ed906a0252eda990d48de86b734e45e3de1a30466a698e5e8f05e7f36518c.exe	83
PID 1608 wrote to memory of 3656	1608	856ed906a0252eda990d48de86b734e45e3de1a30466a698e5e8f05e7f36518c.exe	83
PID 1608 wrote to memory of 3656	1608	856ed906a0252eda990d48de86b734e45e3de1a30466a698e5e8f05e7f36518c.exe	83
PID 1608 wrote to memory of 3656	1608	856ed906a0252eda990d48de86b734e45e3de1a30466a698e5e8f05e7f36518c.exe	83
PID 1608 wrote to memory of 3656	1608	856ed906a0252eda990d48de86b734e45e3de1a30466a698e5e8f05e7f36518c.exe	83
PID 1608 wrote to memory of 3656	1608	856ed906a0252eda990d48de86b734e45e3de1a30466a698e5e8f05e7f36518c.exe	83
PID 1608 wrote to memory of 3656	1608	856ed906a0252eda990d48de86b734e45e3de1a30466a698e5e8f05e7f36518c.exe	83
PID 1608 wrote to memory of 3656	1608	856ed906a0252eda990d48de86b734e45e3de1a30466a698e5e8f05e7f36518c.exe	83
PID 1608 wrote to memory of 3656	1608	856ed906a0252eda990d48de86b734e45e3de1a30466a698e5e8f05e7f36518c.exe	83
PID 1608 wrote to memory of 3656	1608	856ed906a0252eda990d48de86b734e45e3de1a30466a698e5e8f05e7f36518c.exe	83
PID 1608 wrote to memory of 3656	1608	856ed906a0252eda990d48de86b734e45e3de1a30466a698e5e8f05e7f36518c.exe	83
PID 1608 wrote to memory of 3656	1608	856ed906a0252eda990d48de86b734e45e3de1a30466a698e5e8f05e7f36518c.exe	83

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3536
- C:\Users\Admin\AppData\Local\Temp\856ed906a0252eda990d48de86b734e45e3de1a30466a698e5e8f05e7f36518c.exe
  "C:\Users\Admin\AppData\Local\Temp\856ed906a0252eda990d48de86b734e45e3de1a30466a698e5e8f05e7f36518c.exe"
  2⤵
  - Suspicious use of NtCreateUserProcessOtherParentProcess
  - Drops startup file
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1608
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3656

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/1608-0-0x0000000074EBE000-0x0000000074EBF000-memory.dmp

Filesize
4KB

Download
memory/1608-1-0x00000000004F0000-0x0000000000642000-memory.dmp

Filesize
1.3MB

Download
memory/1608-2-0x0000000074EB0000-0x0000000075660000-memory.dmp

Filesize
7.7MB

Download
memory/1608-3-0x0000000005000000-0x0000000005128000-memory.dmp

Filesize
1.2MB

Download
memory/1608-4-0x0000000005130000-0x0000000005256000-memory.dmp

Filesize
1.1MB

Download
memory/1608-20-0x0000000005130000-0x0000000005250000-memory.dmp

Filesize
1.1MB

Download
memory/1608-26-0x0000000005130000-0x0000000005250000-memory.dmp

Filesize
1.1MB

Download
memory/1608-66-0x0000000005130000-0x0000000005250000-memory.dmp

Filesize
1.1MB

Download
memory/1608-64-0x0000000005130000-0x0000000005250000-memory.dmp

Filesize
1.1MB

Download
memory/1608-62-0x0000000005130000-0x0000000005250000-memory.dmp

Filesize
1.1MB

Download
memory/1608-60-0x0000000005130000-0x0000000005250000-memory.dmp

Filesize
1.1MB

Download
memory/1608-58-0x0000000005130000-0x0000000005250000-memory.dmp

Filesize
1.1MB

Download
memory/1608-56-0x0000000005130000-0x0000000005250000-memory.dmp

Filesize
1.1MB

Download
memory/1608-54-0x0000000005130000-0x0000000005250000-memory.dmp

Filesize
1.1MB

Download
memory/1608-50-0x0000000005130000-0x0000000005250000-memory.dmp

Filesize
1.1MB

Download
memory/1608-48-0x0000000005130000-0x0000000005250000-memory.dmp

Filesize
1.1MB

Download
memory/1608-46-0x0000000005130000-0x0000000005250000-memory.dmp

Filesize
1.1MB

Download
memory/1608-44-0x0000000005130000-0x0000000005250000-memory.dmp

Filesize
1.1MB

Download
memory/1608-43-0x0000000005130000-0x0000000005250000-memory.dmp

Filesize
1.1MB

Download
memory/1608-38-0x0000000005130000-0x0000000005250000-memory.dmp

Filesize
1.1MB

Download
memory/1608-36-0x0000000005130000-0x0000000005250000-memory.dmp

Filesize
1.1MB

Download
memory/1608-34-0x0000000005130000-0x0000000005250000-memory.dmp

Filesize
1.1MB

Download
memory/1608-32-0x0000000005130000-0x0000000005250000-memory.dmp

Filesize
1.1MB

Download
memory/1608-31-0x0000000005130000-0x0000000005250000-memory.dmp

Filesize
1.1MB

Download
memory/1608-28-0x0000000005130000-0x0000000005250000-memory.dmp

Filesize
1.1MB

Download
memory/1608-24-0x0000000005130000-0x0000000005250000-memory.dmp

Filesize
1.1MB

Download
memory/1608-22-0x0000000005130000-0x0000000005250000-memory.dmp

Filesize
1.1MB

Download
memory/1608-18-0x0000000005130000-0x0000000005250000-memory.dmp

Filesize
1.1MB

Download
memory/1608-16-0x0000000005130000-0x0000000005250000-memory.dmp

Filesize
1.1MB

Download
memory/1608-14-0x0000000005130000-0x0000000005250000-memory.dmp

Filesize
1.1MB

Download
memory/1608-12-0x0000000005130000-0x0000000005250000-memory.dmp

Filesize
1.1MB

Download
memory/1608-9-0x0000000005130000-0x0000000005250000-memory.dmp

Filesize
1.1MB

Download
memory/1608-68-0x0000000005130000-0x0000000005250000-memory.dmp

Filesize
1.1MB

Download
memory/1608-52-0x0000000005130000-0x0000000005250000-memory.dmp

Filesize
1.1MB

Download
memory/1608-40-0x0000000005130000-0x0000000005250000-memory.dmp

Filesize
1.1MB

Download
memory/1608-10-0x0000000005130000-0x0000000005250000-memory.dmp

Filesize
1.1MB

Download
memory/1608-7-0x0000000005130000-0x0000000005250000-memory.dmp

Filesize
1.1MB

Download
memory/1608-5-0x0000000005130000-0x0000000005250000-memory.dmp

Filesize
1.1MB

Download
memory/1608-1181-0x0000000074EB0000-0x0000000075660000-memory.dmp

Filesize
7.7MB

Download
memory/1608-1182-0x0000000005540000-0x00000000055D6000-memory.dmp

Filesize
600KB

Download
memory/1608-1183-0x00000000053E0000-0x000000000542C000-memory.dmp

Filesize
304KB

Download
memory/1608-1184-0x0000000005E50000-0x00000000063F4000-memory.dmp

Filesize
5.6MB

Download
memory/1608-1185-0x00000000055E0000-0x0000000005634000-memory.dmp

Filesize
336KB

Download
memory/1608-1191-0x0000000074EB0000-0x0000000075660000-memory.dmp

Filesize
7.7MB

Download
memory/1608-1193-0x0000000074EB0000-0x0000000075660000-memory.dmp

Filesize
7.7MB

Download
memory/1608-1197-0x0000000074EB0000-0x0000000075660000-memory.dmp

Filesize
7.7MB

Download
memory/1608-1199-0x0000000074EB0000-0x0000000075660000-memory.dmp

Filesize
7.7MB

Download
memory/3656-1200-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3656-1202-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download