Malware Analysis Report

2024-10-10 09:56

Sample ID 240706-a4pbastand
Target betaloader.exe
SHA256 d891136336eb391236b2cc2f6749440d9eb4dc8fc517eb1262cf739276657073
Tags
umbral execution spyware stealer
score
10/10

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 Overview

score
10/10

SHA256

d891136336eb391236b2cc2f6749440d9eb4dc8fc517eb1262cf739276657073

Threat Level: Known bad

The file betaloader.exe was found to be: Known bad.

Malicious Activity Summary

umbral execution spyware stealer

Umbral family

Umbral

Detect Umbral payload

Drops file in Drivers directory

Command and Scripting Interpreter: PowerShell

Reads user/profile data of web browsers

Legitimate hosting services abused for malware hosting/C2

Looks up external IP address via web service

Unsigned PE

Detects videocard installed

Runs ping.exe

Suspicious behavior: EnumeratesProcesses

Views/modifies file attributes

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-07-06 00:46

Signatures

Detect Umbral payload

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

Umbral family

umbral

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-06 00:46

Reported

2024-07-06 00:50

Platform

win11-20240704-en

Max time kernel

19s

Max time network

23s

Command Line

"C:\Users\Admin\AppData\Local\Temp\betaloader.exe"

Signatures

Detect Umbral payload

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

Umbral

stealer umbral

Command and Scripting Interpreter: PowerShell

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

Drops file in Drivers directory

Description Indicator Process Target
File opened for modification C:\Windows\System32\drivers\etc\hosts C:\Users\Admin\AppData\Local\Temp\betaloader.exe N/A

Reads user/profile data of web browsers

spyware stealer

Legitimate hosting services abused for malware hosting/C2

Description Indicator Process Target
N/A discord.com N/A N/A
N/A discord.com N/A N/A

Looks up external IP address via web service

Description Indicator Process Target
N/A ip-api.com N/A N/A

Detects videocard installed

Description Indicator Process Target
N/A N/A C:\Windows\System32\Wbem\wmic.exe N/A

Runs ping.exe

Description Indicator Process Target
N/A N/A C:\Windows\system32\PING.EXE N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\betaloader.exe N/A
Token: SeIncreaseQuotaPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeTakeOwnershipPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeLoadDriverPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeSystemProfilePrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeSystemtimePrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeProfSingleProcessPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeRestorePrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeShutdownPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeSystemEnvironmentPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeRemoteShutdownPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeUndockPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeManageVolumePrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: 33 N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: 34 N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: 35 N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: 36 N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeIncreaseQuotaPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeTakeOwnershipPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeLoadDriverPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeSystemProfilePrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeSystemtimePrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeProfSingleProcessPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeRestorePrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeShutdownPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeSystemEnvironmentPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeRemoteShutdownPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeUndockPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeManageVolumePrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: 33 N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: 34 N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: 35 N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: 36 N/A C:\Windows\System32\Wbem\wmic.exe N/A
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
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
Token: SeIncreaseQuotaPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeTakeOwnershipPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeLoadDriverPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeSystemProfilePrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeSystemtimePrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeProfSingleProcessPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeRestorePrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeShutdownPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeSystemEnvironmentPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeRemoteShutdownPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeUndockPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeManageVolumePrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4244 wrote to memory of 5400 N/A C:\Users\Admin\AppData\Local\Temp\betaloader.exe C:\Windows\System32\Wbem\wmic.exe
PID 4244 wrote to memory of 5400 N/A C:\Users\Admin\AppData\Local\Temp\betaloader.exe C:\Windows\System32\Wbem\wmic.exe
PID 4244 wrote to memory of 3256 N/A C:\Users\Admin\AppData\Local\Temp\betaloader.exe C:\Windows\SYSTEM32\attrib.exe
PID 4244 wrote to memory of 3256 N/A C:\Users\Admin\AppData\Local\Temp\betaloader.exe C:\Windows\SYSTEM32\attrib.exe
PID 4244 wrote to memory of 3284 N/A C:\Users\Admin\AppData\Local\Temp\betaloader.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4244 wrote to memory of 3284 N/A C:\Users\Admin\AppData\Local\Temp\betaloader.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4244 wrote to memory of 5368 N/A C:\Users\Admin\AppData\Local\Temp\betaloader.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4244 wrote to memory of 5368 N/A C:\Users\Admin\AppData\Local\Temp\betaloader.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4244 wrote to memory of 5012 N/A C:\Users\Admin\AppData\Local\Temp\betaloader.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4244 wrote to memory of 5012 N/A C:\Users\Admin\AppData\Local\Temp\betaloader.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4244 wrote to memory of 2840 N/A C:\Users\Admin\AppData\Local\Temp\betaloader.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4244 wrote to memory of 2840 N/A C:\Users\Admin\AppData\Local\Temp\betaloader.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4244 wrote to memory of 5304 N/A C:\Users\Admin\AppData\Local\Temp\betaloader.exe C:\Windows\System32\Wbem\wmic.exe
PID 4244 wrote to memory of 5304 N/A C:\Users\Admin\AppData\Local\Temp\betaloader.exe C:\Windows\System32\Wbem\wmic.exe
PID 4244 wrote to memory of 4940 N/A C:\Users\Admin\AppData\Local\Temp\betaloader.exe C:\Windows\System32\Wbem\wmic.exe
PID 4244 wrote to memory of 4940 N/A C:\Users\Admin\AppData\Local\Temp\betaloader.exe C:\Windows\System32\Wbem\wmic.exe
PID 4244 wrote to memory of 1980 N/A C:\Users\Admin\AppData\Local\Temp\betaloader.exe C:\Windows\System32\Wbem\wmic.exe
PID 4244 wrote to memory of 1980 N/A C:\Users\Admin\AppData\Local\Temp\betaloader.exe C:\Windows\System32\Wbem\wmic.exe
PID 4244 wrote to memory of 4512 N/A C:\Users\Admin\AppData\Local\Temp\betaloader.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4244 wrote to memory of 4512 N/A C:\Users\Admin\AppData\Local\Temp\betaloader.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4244 wrote to memory of 4168 N/A C:\Users\Admin\AppData\Local\Temp\betaloader.exe C:\Windows\System32\Wbem\wmic.exe
PID 4244 wrote to memory of 4168 N/A C:\Users\Admin\AppData\Local\Temp\betaloader.exe C:\Windows\System32\Wbem\wmic.exe
PID 4244 wrote to memory of 4256 N/A C:\Users\Admin\AppData\Local\Temp\betaloader.exe C:\Windows\SYSTEM32\cmd.exe
PID 4244 wrote to memory of 4256 N/A C:\Users\Admin\AppData\Local\Temp\betaloader.exe C:\Windows\SYSTEM32\cmd.exe
PID 4256 wrote to memory of 2148 N/A C:\Windows\SYSTEM32\cmd.exe C:\Windows\system32\PING.EXE
PID 4256 wrote to memory of 2148 N/A C:\Windows\SYSTEM32\cmd.exe C:\Windows\system32\PING.EXE

Views/modifies file attributes

evasion
Description Indicator Process Target
N/A N/A C:\Windows\SYSTEM32\attrib.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\betaloader.exe

"C:\Users\Admin\AppData\Local\Temp\betaloader.exe"

C:\Windows\System32\Wbem\wmic.exe

"wmic.exe" csproduct get uuid

C:\Windows\SYSTEM32\attrib.exe

"attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\betaloader.exe"

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

"powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\betaloader.exe'

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

"powershell.exe" Set-MpPreference -DisableIntrusionPreventionSystem $true -DisableIOAVProtection $true -DisableRealtimeMonitoring $true -DisableScriptScanning $true -EnableControlledFolderAccess Disabled -EnableNetworkProtection AuditMode -Force -MAPSReporting Disabled -SubmitSamplesConsent NeverSend && powershell Set-MpPreference -SubmitSamplesConsent 2

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

"powershell.exe" Get-ItemPropertyValue -Path HKCU:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY

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

"powershell.exe" Get-ItemPropertyValue -Path HKLN:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY

C:\Windows\System32\Wbem\wmic.exe

"wmic.exe" os get Caption

C:\Windows\System32\Wbem\wmic.exe

"wmic.exe" computersystem get totalphysicalmemory

C:\Windows\System32\Wbem\wmic.exe

"wmic.exe" csproduct get uuid

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

"powershell.exe" Get-ItemPropertyValue -Path 'HKLM:System\CurrentControlSet\Control\Session Manager\Environment' -Name PROCESSOR_IDENTIFIER

C:\Windows\System32\Wbem\wmic.exe

"wmic" path win32_VideoController get name

C:\Windows\SYSTEM32\cmd.exe

"cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\betaloader.exe" && pause

C:\Windows\system32\PING.EXE

ping localhost

Network

Country Destination Domain Proto
US 8.8.8.8:53 gstatic.com udp
GB 142.250.200.3:443 gstatic.com tcp
US 8.8.8.8:53 ip-api.com udp
US 208.95.112.1:80 ip-api.com tcp
US 208.95.112.1:80 ip-api.com tcp
US 162.159.128.233:443 discord.com tcp

Files

memory/4244-0-0x00007FFE80153000-0x00007FFE80155000-memory.dmp

memory/4244-1-0x0000019D42A50000-0x0000019D42ACE000-memory.dmp

memory/4244-2-0x00007FFE80150000-0x00007FFE80C12000-memory.dmp

memory/3284-8-0x000001E155260000-0x000001E155282000-memory.dmp

memory/3284-12-0x00007FFE80150000-0x00007FFE80C12000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_00mvoq4f.nwi.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/3284-13-0x00007FFE80150000-0x00007FFE80C12000-memory.dmp

memory/3284-16-0x00007FFE80150000-0x00007FFE80C12000-memory.dmp

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

MD5 627073ee3ca9676911bee35548eff2b8
SHA1 4c4b68c65e2cab9864b51167d710aa29ebdcff2e
SHA256 85b280a39fc31ba1e15fb06102a05b8405ff3b82feb181d4170f04e466dd647c
SHA512 3c5f6c03e253b83c57e8d6f0334187dbdcdf4fa549eecd36cbc1322dca6d3ca891dc6a019c49ec2eafb88f82d0434299c31e4dfaab123acb42e0546218f311fb

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

MD5 6903d57eed54e89b68ebb957928d1b99
SHA1 fade011fbf2e4bc044d41e380cf70bd6a9f73212
SHA256 36cbb00b016c9f97645fb628ef72b524dfbdf6e08d626e5c837bbbb9075dcb52
SHA512 c192ea9810fd22de8378269235c1035aa1fe1975a53c876fe4a7acc726c020f94773c21e4e4771133f9fcedb0209f0a5324c594c1db5b28fe1b27644db4fdc9e

memory/4244-30-0x0000019D5D250000-0x0000019D5D2C6000-memory.dmp

memory/4244-31-0x0000019D5D2D0000-0x0000019D5D320000-memory.dmp

memory/4244-32-0x0000019D5D1E0000-0x0000019D5D1FE000-memory.dmp

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

MD5 a09feb289277c802560d2b15713f1ae0
SHA1 e131f13a795ac53da6f8f6f0b8b8d7bccd490d02
SHA256 e2984fff0e3a44d131ace475f2ed0fab4efa6d4f09335027fc534c7ca5588cc0
SHA512 27a663a178c87693401eb5e4c186cfabf4feb413fb7e6c252aa3de2ce9ea5be14277dd093f2d8ddd4d1701dcabb8ae78bb9246a5c1a45d18ecd937a9dc26deb7

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

MD5 f29ff8b1e0f396a194a6782749830b8e
SHA1 2f8999b0eb2a20e591cf9a638c9fa84ddf4a1f69
SHA256 5bfd4968395fefaac3941c08fa11e86dfde1072137d9290aee3888f2a5d92d3f
SHA512 0689d665f2a7c9007c5dc4c14a53d5566d315d05d476bee82d64d02d40e3ffddca2b36419c76a8f7b7979958a62a7a93c939d1ed72fa7a844841ed06741b9e19

memory/4244-66-0x0000019D5D210000-0x0000019D5D21A000-memory.dmp

memory/4244-67-0x0000019D5D320000-0x0000019D5D332000-memory.dmp

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

MD5 df08dc547ef7be982b7ee4fafb32fa99
SHA1 823d7575100bdb278650a372c2f2ae421a923c1a
SHA256 38e5a3825146636477a0b13407af69ad5bc6ff92780c039c0e83a57fb3fad6f7
SHA512 ce705f0a00aa8914666d2255447224428072ec07d1a116fcca42295ab4e70689f93d881a397b6d2a8e98a3cbfa958b271e913cc975e9e5b3fd4f8f4014241e5d

memory/4244-84-0x00007FFE80150000-0x00007FFE80C12000-memory.dmp