Malware Analysis Report

2024-10-10 09:50

Sample ID 240623-y3lqsatfql
Target release05262024.exe
SHA256 ea94a87b1828d33c0fd1b075ecfdf3cde3856c3b3f173f10c4618e306f1970f8
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

ea94a87b1828d33c0fd1b075ecfdf3cde3856c3b3f173f10c4618e306f1970f8

Threat Level: Known bad

The file release05262024.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

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Runs ping.exe

Detects videocard installed

Suspicious use of AdjustPrivilegeToken

Views/modifies file attributes

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-23 20:18

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

2024-06-23 20:18

Reported

2024-06-23 20:21

Platform

win11-20240611-en

Max time kernel

141s

Max time network

126s

Command Line

"C:\Users\Admin\AppData\Local\Temp\release05262024.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\release05262024.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\release05262024.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 4172 wrote to memory of 4800 N/A C:\Users\Admin\AppData\Local\Temp\release05262024.exe C:\Windows\System32\Wbem\wmic.exe
PID 4172 wrote to memory of 4800 N/A C:\Users\Admin\AppData\Local\Temp\release05262024.exe C:\Windows\System32\Wbem\wmic.exe
PID 4172 wrote to memory of 4760 N/A C:\Users\Admin\AppData\Local\Temp\release05262024.exe C:\Windows\SYSTEM32\attrib.exe
PID 4172 wrote to memory of 4760 N/A C:\Users\Admin\AppData\Local\Temp\release05262024.exe C:\Windows\SYSTEM32\attrib.exe
PID 4172 wrote to memory of 3744 N/A C:\Users\Admin\AppData\Local\Temp\release05262024.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4172 wrote to memory of 3744 N/A C:\Users\Admin\AppData\Local\Temp\release05262024.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4172 wrote to memory of 1112 N/A C:\Users\Admin\AppData\Local\Temp\release05262024.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4172 wrote to memory of 1112 N/A C:\Users\Admin\AppData\Local\Temp\release05262024.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4172 wrote to memory of 672 N/A C:\Users\Admin\AppData\Local\Temp\release05262024.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4172 wrote to memory of 672 N/A C:\Users\Admin\AppData\Local\Temp\release05262024.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4172 wrote to memory of 4908 N/A C:\Users\Admin\AppData\Local\Temp\release05262024.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4172 wrote to memory of 4908 N/A C:\Users\Admin\AppData\Local\Temp\release05262024.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4172 wrote to memory of 332 N/A C:\Users\Admin\AppData\Local\Temp\release05262024.exe C:\Windows\System32\Wbem\wmic.exe
PID 4172 wrote to memory of 332 N/A C:\Users\Admin\AppData\Local\Temp\release05262024.exe C:\Windows\System32\Wbem\wmic.exe
PID 4172 wrote to memory of 4688 N/A C:\Users\Admin\AppData\Local\Temp\release05262024.exe C:\Windows\System32\Wbem\wmic.exe
PID 4172 wrote to memory of 4688 N/A C:\Users\Admin\AppData\Local\Temp\release05262024.exe C:\Windows\System32\Wbem\wmic.exe
PID 4172 wrote to memory of 1108 N/A C:\Users\Admin\AppData\Local\Temp\release05262024.exe C:\Windows\System32\Wbem\wmic.exe
PID 4172 wrote to memory of 1108 N/A C:\Users\Admin\AppData\Local\Temp\release05262024.exe C:\Windows\System32\Wbem\wmic.exe
PID 4172 wrote to memory of 2732 N/A C:\Users\Admin\AppData\Local\Temp\release05262024.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4172 wrote to memory of 2732 N/A C:\Users\Admin\AppData\Local\Temp\release05262024.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4172 wrote to memory of 4664 N/A C:\Users\Admin\AppData\Local\Temp\release05262024.exe C:\Windows\System32\Wbem\wmic.exe
PID 4172 wrote to memory of 4664 N/A C:\Users\Admin\AppData\Local\Temp\release05262024.exe C:\Windows\System32\Wbem\wmic.exe
PID 4172 wrote to memory of 3976 N/A C:\Users\Admin\AppData\Local\Temp\release05262024.exe C:\Windows\SYSTEM32\cmd.exe
PID 4172 wrote to memory of 3976 N/A C:\Users\Admin\AppData\Local\Temp\release05262024.exe C:\Windows\SYSTEM32\cmd.exe
PID 3976 wrote to memory of 1412 N/A C:\Windows\SYSTEM32\cmd.exe C:\Windows\system32\PING.EXE
PID 3976 wrote to memory of 1412 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\release05262024.exe

"C:\Users\Admin\AppData\Local\Temp\release05262024.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\release05262024.exe"

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

"powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\release05262024.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\release05262024.exe" && pause

C:\Windows\system32\PING.EXE

ping localhost

Network

Country Destination Domain Proto
US 8.8.8.8:53 gstatic.com udp
GB 172.217.16.227:443 gstatic.com tcp
US 208.95.112.1:80 ip-api.com tcp
US 8.8.8.8:53 227.16.217.172.in-addr.arpa udp
US 8.8.8.8:53 1.112.95.208.in-addr.arpa udp
US 208.95.112.1:80 ip-api.com tcp
US 162.159.128.233:443 discord.com tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp

Files

memory/4172-0-0x000001C3E51C0000-0x000001C3E5200000-memory.dmp

memory/4172-1-0x00007FFF3C063000-0x00007FFF3C065000-memory.dmp

memory/4172-2-0x00007FFF3C060000-0x00007FFF3CB22000-memory.dmp

memory/3744-12-0x00007FFF3C060000-0x00007FFF3CB22000-memory.dmp

memory/3744-11-0x000002665F170000-0x000002665F192000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_vp1tuciv.g40.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/3744-13-0x00007FFF3C060000-0x00007FFF3CB22000-memory.dmp

memory/3744-14-0x00007FFF3C060000-0x00007FFF3CB22000-memory.dmp

memory/3744-17-0x00007FFF3C060000-0x00007FFF3CB22000-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 1a9fa92a4f2e2ec9e244d43a6a4f8fb9
SHA1 9910190edfaccece1dfcc1d92e357772f5dae8f7
SHA256 0ee052d5333fd5fd86bc84856fec98e045f077a7ac8051651bf7c521b9706888
SHA512 5d2361476fa22200e6f83883efe7dcb8c3fe7dae8d56e04e28a36e9ae1270c327b6aa161d92b239593da7661289d002c574446ecfd6bd19928209aae25e3ef64

memory/4172-31-0x000001C3FF990000-0x000001C3FFA06000-memory.dmp

memory/4172-32-0x000001C3FFA10000-0x000001C3FFA60000-memory.dmp

memory/4172-33-0x000001C3FF910000-0x000001C3FF92E000-memory.dmp

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

MD5 45741c307af2576c6437c5fdb24ef9ce
SHA1 a6ba7a7705db14ac29a18a98dd7deb4cc759c3bf
SHA256 7887859f7179e194ff9b78f8d8fa3830790110a01597f21ff48c84cd935e49d2
SHA512 39fdc5931563cbf826e8b643b5f0dcdf45bb6f95a8eeb460499257ca41b3dbee4c692eaacc3fd33bddf4b6ff0c828981ed7e9cd080007bbb9f0b28e7d0d66941

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

MD5 7332074ae2b01262736b6fbd9e100dac
SHA1 22f992165065107cc9417fa4117240d84414a13c
SHA256 baea84fda6c1f13090b8cbd91c920848946f10ce155ef31a1df4cd453ee7e4aa
SHA512 4ae6f0e012c31ac1fc2ff4a8877ce2b4667c45b6e651de798318a39a2b6fd39a6f72dffa8b0b89b7a045a27d724d195656faa25a9fec79b22f37ddebb5d22da2

memory/4172-68-0x000001C3E6FC0000-0x000001C3E6FCA000-memory.dmp

memory/4172-69-0x000001C3FF950000-0x000001C3FF962000-memory.dmp

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

MD5 63e54ca6551a4a091cca75d55e9122b2
SHA1 7afd34b6d2008fec2a36d984d535aea7406a66ce
SHA256 e263f5f17c235debb019644319a773d5feabd2f80fdb3d7783762ba572fe875b
SHA512 22e332795de470945a1864cfe32e90cd993554cf139467610abdb20b1608c2a7e0177f001b2b6f0032daa780980207943b6e1e4f0960e0576a1aea76fd1dd13e

memory/4172-88-0x00007FFF3C060000-0x00007FFF3CB22000-memory.dmp