Malware Analysis Report

2024-10-10 09:56

Sample ID 240710-zyxg6aseja
Target Spoofer.exe
SHA256 36c0e34d73f51cda52a92a638cf821847fd3c8efd87350eeb874dbc8a94c1927
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

36c0e34d73f51cda52a92a638cf821847fd3c8efd87350eeb874dbc8a94c1927

Threat Level: Known bad

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

Malicious Activity Summary

umbral execution spyware stealer

Umbral

Detect Umbral payload

Umbral family

Command and Scripting Interpreter: PowerShell

Drops file in Drivers directory

Reads user/profile data of web browsers

Looks up external IP address via web service

Legitimate hosting services abused for malware hosting/C2

Unsigned PE

Views/modifies file attributes

Suspicious behavior: EnumeratesProcesses

Detects videocard installed

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-07-10 21:08

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

2024-07-10 21:08

Reported

2024-07-10 21:09

Platform

win10-20240611-en

Max time kernel

40s

Max time network

58s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Spoofer.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\Spoofer.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

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Spoofer.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: SeIncreaseQuotaPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeTakeOwnershipPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeLoadDriverPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeSystemProfilePrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeSystemtimePrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeProfSingleProcessPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeRestorePrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeShutdownPrivilege 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: SeSystemEnvironmentPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeRemoteShutdownPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeUndockPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeManageVolumePrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: 33 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: 34 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: 35 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4488 wrote to memory of 304 N/A C:\Users\Admin\AppData\Local\Temp\Spoofer.exe C:\Windows\System32\Wbem\wmic.exe
PID 4488 wrote to memory of 304 N/A C:\Users\Admin\AppData\Local\Temp\Spoofer.exe C:\Windows\System32\Wbem\wmic.exe
PID 4488 wrote to memory of 4244 N/A C:\Users\Admin\AppData\Local\Temp\Spoofer.exe C:\Windows\SYSTEM32\attrib.exe
PID 4488 wrote to memory of 4244 N/A C:\Users\Admin\AppData\Local\Temp\Spoofer.exe C:\Windows\SYSTEM32\attrib.exe
PID 4488 wrote to memory of 2928 N/A C:\Users\Admin\AppData\Local\Temp\Spoofer.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4488 wrote to memory of 2928 N/A C:\Users\Admin\AppData\Local\Temp\Spoofer.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4488 wrote to memory of 3688 N/A C:\Users\Admin\AppData\Local\Temp\Spoofer.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4488 wrote to memory of 3688 N/A C:\Users\Admin\AppData\Local\Temp\Spoofer.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4488 wrote to memory of 4964 N/A C:\Users\Admin\AppData\Local\Temp\Spoofer.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4488 wrote to memory of 4964 N/A C:\Users\Admin\AppData\Local\Temp\Spoofer.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4488 wrote to memory of 2608 N/A C:\Users\Admin\AppData\Local\Temp\Spoofer.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4488 wrote to memory of 2608 N/A C:\Users\Admin\AppData\Local\Temp\Spoofer.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4488 wrote to memory of 4756 N/A C:\Users\Admin\AppData\Local\Temp\Spoofer.exe C:\Windows\System32\Wbem\wmic.exe
PID 4488 wrote to memory of 4756 N/A C:\Users\Admin\AppData\Local\Temp\Spoofer.exe C:\Windows\System32\Wbem\wmic.exe
PID 4488 wrote to memory of 4204 N/A C:\Users\Admin\AppData\Local\Temp\Spoofer.exe C:\Windows\System32\Wbem\wmic.exe
PID 4488 wrote to memory of 4204 N/A C:\Users\Admin\AppData\Local\Temp\Spoofer.exe C:\Windows\System32\Wbem\wmic.exe
PID 4488 wrote to memory of 3036 N/A C:\Users\Admin\AppData\Local\Temp\Spoofer.exe C:\Windows\System32\Wbem\wmic.exe
PID 4488 wrote to memory of 3036 N/A C:\Users\Admin\AppData\Local\Temp\Spoofer.exe C:\Windows\System32\Wbem\wmic.exe
PID 4488 wrote to memory of 3928 N/A C:\Users\Admin\AppData\Local\Temp\Spoofer.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4488 wrote to memory of 3928 N/A C:\Users\Admin\AppData\Local\Temp\Spoofer.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4488 wrote to memory of 5104 N/A C:\Users\Admin\AppData\Local\Temp\Spoofer.exe C:\Windows\System32\Wbem\wmic.exe
PID 4488 wrote to memory of 5104 N/A C:\Users\Admin\AppData\Local\Temp\Spoofer.exe C:\Windows\System32\Wbem\wmic.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\Spoofer.exe

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

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

"wmic.exe" csproduct get uuid

C:\Windows\System32\rundll32.exe

C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding

C:\Windows\SYSTEM32\attrib.exe

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

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 gstatic.com udp
GB 142.250.187.195:443 gstatic.com tcp
US 8.8.8.8:53 ip-api.com udp
US 208.95.112.1:80 ip-api.com tcp
US 8.8.8.8:53 195.187.250.142.in-addr.arpa udp
US 8.8.8.8:53 1.112.95.208.in-addr.arpa udp
US 8.8.8.8:53 195.187.250.142.in-addr.arpa udp
US 208.95.112.1:80 ip-api.com tcp
US 8.8.8.8:53 discord.com udp
US 162.159.128.233:443 discord.com tcp
US 8.8.8.8:53 233.128.159.162.in-addr.arpa udp

Files

memory/4488-0-0x00007FF8C0603000-0x00007FF8C0604000-memory.dmp

memory/4488-1-0x0000024DCE040000-0x0000024DCE086000-memory.dmp

memory/4488-2-0x00007FF8C0600000-0x00007FF8C0FEC000-memory.dmp

memory/4488-3-0x00007FF8C0600000-0x00007FF8C0FEC000-memory.dmp

memory/2928-8-0x00000254A17D0000-0x00000254A17F2000-memory.dmp

memory/2928-11-0x00000254A1980000-0x00000254A19F6000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_cmd22u4g.3cw.ps1

MD5 c4ca4238a0b923820dcc509a6f75849b
SHA1 356a192b7913b04c54574d18c28d46e6395428ab
SHA256 6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b
SHA512 4dff4ea340f0a823f15d3f4f01ab62eae0e5da579ccb851f8db9dfe84c58b2b37b89903a740e1ee172da793a6e79d560e5f7f9bd058a12a280433ed6fa46510a

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

MD5 8592ba100a78835a6b94d5949e13dfc1
SHA1 63e901200ab9a57c7dd4c078d7f75dcd3b357020
SHA256 fdd7d9def6f9f0c0f2e60dbc8a2d1999071cd7d3095e9e087bb1cda7a614ac3c
SHA512 87f98e6cb61b2a2a7d65710c4d33881d89715eb7a06e00d492259f35c3902498baabffc5886be0ec5a14312ad4c262e3fc40cd3a5cb91701af0fb229726b88c3

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

MD5 d3c50d929cf3a1a057f9b2862cd20df1
SHA1 c8067ee54d074bed6ede382933bad73981a17ce0
SHA256 178f684f57a5dfb637293bbecfa86c6b7e122227610d10b56ccd0681d3d1d4a4
SHA512 1b9575efa748dc95441d5212957b0edbad2dc4657214f0aef8cb8f48bb4da4b2079d318cf235ae75bb1446e15af54fa8550bf79a7d3c79a67c4f37b8a608ba5f

memory/4488-80-0x0000024DE87B0000-0x0000024DE8800000-memory.dmp

memory/4488-81-0x0000024DE8820000-0x0000024DE883E000-memory.dmp

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

MD5 e89a38aa646eefea123dea9fcc792c03
SHA1 6324edb14b2844618f66d8c6327cfa017c796c7d
SHA256 573a66b7d1264cb0149fbfdc4b3e8e9fc73dbdca915281694a01c099bacec7d7
SHA512 c42bd2d7d07c31b693e6e467985da05248e4bc6797fecbfe9696edefb85e4ad9d672c67e2ec5f8163ee5029c9cca32db47e38d79c15326addf48141bd75ff0b5

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

MD5 1b5df20804d1c95783d32c750689c49f
SHA1 1d2fd1fea30d7fc09d00d57705c5b70fd470f51b
SHA256 bd865fb0ee59a16d8df985a43dbc179dc98a6514b28a6697c2e81bb4170b2804
SHA512 48f0148e19bb89a415fbe82efac9c6bd892e8d544b8886db6d8d296d79a67057a8262948b86496a53fbfc51f9e7ade329b9dbfcd602829a59549dd56a20ffca6

memory/4488-146-0x0000024DE86B0000-0x0000024DE86BA000-memory.dmp

memory/4488-147-0x0000024DE86E0000-0x0000024DE86F2000-memory.dmp

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

MD5 c0278d3b47cf401aba9f3c11c02c1818
SHA1 91d2a4dea01a786ab4bddaf1cd0927b8bece1747
SHA256 fb85bf5e9c75ceb6cc9806d95109b22b9bf41cd92c3452f8f0742b9f6ad89a3b
SHA512 1f5aab4515faf3ed480ab77fe8113748fee65c361731c6bb4f730c8de108bedabf72fe3d14934d23030aafe87f21397633e3e255959f317731899ff683b66b75