Malware Analysis Report

2025-05-06 00:51

Sample ID 241109-zacg3svjdj
Target 66b802410562811332fee88376be681719a02c8f42e9f508ba573d43264a752eN
SHA256 66b802410562811332fee88376be681719a02c8f42e9f508ba573d43264a752e
Tags
defense_evasion discovery execution
score
7/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
7/10

SHA256

66b802410562811332fee88376be681719a02c8f42e9f508ba573d43264a752e

Threat Level: Shows suspicious behavior

The file 66b802410562811332fee88376be681719a02c8f42e9f508ba573d43264a752eN was found to be: Shows suspicious behavior.

Malicious Activity Summary

defense_evasion discovery execution

Impair Defenses: Safe Mode Boot

Drops startup file

Command and Scripting Interpreter: PowerShell

Unsigned PE

System Location Discovery: System Language Discovery

Kills process with taskkill

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-09 20:30

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-09 20:30

Reported

2024-11-09 20:32

Platform

win10v2004-20241007-en

Max time kernel

95s

Max time network

97s

Command Line

"C:\Users\Admin\AppData\Local\Temp\66b802410562811332fee88376be681719a02c8f42e9f508ba573d43264a752eN.exe"

Signatures

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\BlockWindows.lnk C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Impair Defenses: Safe Mode Boot

defense_evasion
Description Indicator Process Target
Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SafeBoot\Minimal\DisableSafeMode = "1" C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Command and Scripting Interpreter: PowerShell

execution
Description Indicator Process Target
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\66b802410562811332fee88376be681719a02c8f42e9f508ba573d43264a752eN.exe N/A

Kills process with taskkill

evasion
Description Indicator Process Target
N/A N/A C:\Windows\system32\taskkill.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\system32\taskkill.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\66b802410562811332fee88376be681719a02c8f42e9f508ba573d43264a752eN.exe

"C:\Users\Admin\AppData\Local\Temp\66b802410562811332fee88376be681719a02c8f42e9f508ba573d43264a752eN.exe"

C:\Windows\system32\cmd.exe

"C:\Windows\sysnative\cmd" /c "C:\Users\Admin\AppData\Local\Temp\6F54.tmp\lock.bat "C:\Users\Admin\AppData\Local\Temp\66b802410562811332fee88376be681719a02c8f42e9f508ba573d43264a752eN.exe""

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

PowerShell -ExecutionPolicy Bypass -File "C:\Users\Admin\AppData\Local\Temp\BlockWindows.ps1"

C:\Windows\system32\taskkill.exe

"C:\Windows\system32\taskkill.exe" /F /IM explorer.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 133.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 212.20.149.52.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 100.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp

Files

C:\Users\Admin\AppData\Local\Temp\6F54.tmp\lock.bat

MD5 1bd17ffa60b07280bdb6ff5e257ad872
SHA1 113bf27cce1e65477febe8a395c34df1558e39fd
SHA256 9f669db892875d281aec91c08edf9e34ecc1dcda3f2d88fe70a119a3da8a2fea
SHA512 855484587dfba3313ce1e66e515d53a2423a332ce206d35dfe96e31881a8fda35388ce431bb4f08bfe13fb0aaef534d6b1b0a3050f9f00162e696ae363272381

memory/5108-4-0x00007FFFFBD73000-0x00007FFFFBD75000-memory.dmp

memory/5108-5-0x0000021BE7D70000-0x0000021BE7D92000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_xiroztqw.quu.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/5108-15-0x00007FFFFBD70000-0x00007FFFFC831000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\BlockWindows.ps1

MD5 c8f337e720c8097bda0d2c593ae34166
SHA1 7eaa7e5e32d8eb4e2a87d8c218bc3755cb1fa9bc
SHA256 0f266c82f0edafaa2f1d49253de4987c3fa52a908b8123f6dec8646479e56e02
SHA512 6bbf7adcfe1573c14f749c70cb23ef7dc0d638f988fe8558cf82f6a89797af45abf0b0dc219750d7e02a609c20196882837735b96c8ba02acbf7fc1175ed06cd

memory/5108-17-0x00007FFFFBD70000-0x00007FFFFC831000-memory.dmp

memory/5108-19-0x00007FFFFBD70000-0x00007FFFFC831000-memory.dmp

memory/5108-20-0x00007FFFFBD73000-0x00007FFFFBD75000-memory.dmp

memory/5108-21-0x00007FFFFBD70000-0x00007FFFFC831000-memory.dmp

memory/5108-22-0x00007FFFFBD70000-0x00007FFFFC831000-memory.dmp

memory/5108-23-0x00007FFFFBD70000-0x00007FFFFC831000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-09 20:30

Reported

2024-11-09 20:32

Platform

win7-20240903-en

Max time kernel

119s

Max time network

21s

Command Line

"C:\Users\Admin\AppData\Local\Temp\66b802410562811332fee88376be681719a02c8f42e9f508ba573d43264a752eN.exe"

Signatures

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\BlockWindows.lnk C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Impair Defenses: Safe Mode Boot

defense_evasion
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SafeBoot\Minimal\DisableSafeMode = "1" C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Command and Scripting Interpreter: PowerShell

execution
Description Indicator Process Target
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\66b802410562811332fee88376be681719a02c8f42e9f508ba573d43264a752eN.exe N/A

Kills process with taskkill

evasion
Description Indicator Process Target
N/A N/A C:\Windows\system32\taskkill.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\system32\taskkill.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2364 wrote to memory of 2704 N/A C:\Users\Admin\AppData\Local\Temp\66b802410562811332fee88376be681719a02c8f42e9f508ba573d43264a752eN.exe C:\Windows\system32\cmd.exe
PID 2364 wrote to memory of 2704 N/A C:\Users\Admin\AppData\Local\Temp\66b802410562811332fee88376be681719a02c8f42e9f508ba573d43264a752eN.exe C:\Windows\system32\cmd.exe
PID 2364 wrote to memory of 2704 N/A C:\Users\Admin\AppData\Local\Temp\66b802410562811332fee88376be681719a02c8f42e9f508ba573d43264a752eN.exe C:\Windows\system32\cmd.exe
PID 2364 wrote to memory of 2704 N/A C:\Users\Admin\AppData\Local\Temp\66b802410562811332fee88376be681719a02c8f42e9f508ba573d43264a752eN.exe C:\Windows\system32\cmd.exe
PID 2704 wrote to memory of 2764 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 2704 wrote to memory of 2764 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 2704 wrote to memory of 2764 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 2764 wrote to memory of 2872 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\system32\taskkill.exe
PID 2764 wrote to memory of 2872 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\system32\taskkill.exe
PID 2764 wrote to memory of 2872 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\system32\taskkill.exe

Processes

C:\Users\Admin\AppData\Local\Temp\66b802410562811332fee88376be681719a02c8f42e9f508ba573d43264a752eN.exe

"C:\Users\Admin\AppData\Local\Temp\66b802410562811332fee88376be681719a02c8f42e9f508ba573d43264a752eN.exe"

C:\Windows\system32\cmd.exe

"C:\Windows\sysnative\cmd" /c "C:\Users\Admin\AppData\Local\Temp\1017.tmp\lock.bat "C:\Users\Admin\AppData\Local\Temp\66b802410562811332fee88376be681719a02c8f42e9f508ba573d43264a752eN.exe""

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

PowerShell -ExecutionPolicy Bypass -File "C:\Users\Admin\AppData\Local\Temp\BlockWindows.ps1"

C:\Windows\system32\taskkill.exe

"C:\Windows\system32\taskkill.exe" /F /IM explorer.exe

Network

N/A

Files

C:\Users\Admin\AppData\Local\Temp\1017.tmp\lock.bat

MD5 1bd17ffa60b07280bdb6ff5e257ad872
SHA1 113bf27cce1e65477febe8a395c34df1558e39fd
SHA256 9f669db892875d281aec91c08edf9e34ecc1dcda3f2d88fe70a119a3da8a2fea
SHA512 855484587dfba3313ce1e66e515d53a2423a332ce206d35dfe96e31881a8fda35388ce431bb4f08bfe13fb0aaef534d6b1b0a3050f9f00162e696ae363272381

memory/2764-8-0x000007FEF5ACE000-0x000007FEF5ACF000-memory.dmp

memory/2764-9-0x000000001B7C0000-0x000000001BAA2000-memory.dmp

memory/2764-10-0x0000000001E20000-0x0000000001E28000-memory.dmp

memory/2764-11-0x000007FEF5810000-0x000007FEF61AD000-memory.dmp

memory/2764-12-0x000007FEF5810000-0x000007FEF61AD000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\BlockWindows.ps1

MD5 c8f337e720c8097bda0d2c593ae34166
SHA1 7eaa7e5e32d8eb4e2a87d8c218bc3755cb1fa9bc
SHA256 0f266c82f0edafaa2f1d49253de4987c3fa52a908b8123f6dec8646479e56e02
SHA512 6bbf7adcfe1573c14f749c70cb23ef7dc0d638f988fe8558cf82f6a89797af45abf0b0dc219750d7e02a609c20196882837735b96c8ba02acbf7fc1175ed06cd

memory/2764-14-0x000007FEF5810000-0x000007FEF61AD000-memory.dmp

memory/2764-15-0x000007FEF5810000-0x000007FEF61AD000-memory.dmp

memory/2764-16-0x000007FEF5810000-0x000007FEF61AD000-memory.dmp

memory/2764-18-0x000007FEF5810000-0x000007FEF61AD000-memory.dmp

memory/2764-19-0x000007FEF5ACE000-0x000007FEF5ACF000-memory.dmp

memory/2764-20-0x000007FEF5810000-0x000007FEF61AD000-memory.dmp

memory/2764-21-0x000007FEF5810000-0x000007FEF61AD000-memory.dmp

memory/2764-22-0x000007FEF5810000-0x000007FEF61AD000-memory.dmp