Malware Analysis Report

2024-10-10 09:54

Sample ID 240701-m1apys1arq
Target Test.exe
SHA256 e620d6139593cb75beef54843dfca504b864f03a112bb1ece037ea2779a08452
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

e620d6139593cb75beef54843dfca504b864f03a112bb1ece037ea2779a08452

Threat Level: Known bad

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

Malicious Activity Summary

umbral execution spyware stealer

Umbral

Detect Umbral payload

Umbral family

Drops file in Drivers directory

Command and Scripting Interpreter: PowerShell

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

Detects videocard installed

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-07-01 10:55

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

2024-07-01 10:55

Reported

2024-07-01 10:56

Platform

win10v2004-20240611-en

Max time kernel

39s

Max time network

37s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Test.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\Test.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\Test.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 1492 wrote to memory of 4624 N/A C:\Users\Admin\AppData\Local\Temp\Test.exe C:\Windows\System32\Wbem\wmic.exe
PID 1492 wrote to memory of 4624 N/A C:\Users\Admin\AppData\Local\Temp\Test.exe C:\Windows\System32\Wbem\wmic.exe
PID 1492 wrote to memory of 2280 N/A C:\Users\Admin\AppData\Local\Temp\Test.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1492 wrote to memory of 2280 N/A C:\Users\Admin\AppData\Local\Temp\Test.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1492 wrote to memory of 4384 N/A C:\Users\Admin\AppData\Local\Temp\Test.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1492 wrote to memory of 4384 N/A C:\Users\Admin\AppData\Local\Temp\Test.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1492 wrote to memory of 3640 N/A C:\Users\Admin\AppData\Local\Temp\Test.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1492 wrote to memory of 3640 N/A C:\Users\Admin\AppData\Local\Temp\Test.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1492 wrote to memory of 3860 N/A C:\Users\Admin\AppData\Local\Temp\Test.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1492 wrote to memory of 3860 N/A C:\Users\Admin\AppData\Local\Temp\Test.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1492 wrote to memory of 4288 N/A C:\Users\Admin\AppData\Local\Temp\Test.exe C:\Windows\System32\Wbem\wmic.exe
PID 1492 wrote to memory of 4288 N/A C:\Users\Admin\AppData\Local\Temp\Test.exe C:\Windows\System32\Wbem\wmic.exe
PID 1492 wrote to memory of 3432 N/A C:\Users\Admin\AppData\Local\Temp\Test.exe C:\Windows\System32\Wbem\wmic.exe
PID 1492 wrote to memory of 3432 N/A C:\Users\Admin\AppData\Local\Temp\Test.exe C:\Windows\System32\Wbem\wmic.exe
PID 1492 wrote to memory of 2892 N/A C:\Users\Admin\AppData\Local\Temp\Test.exe C:\Windows\System32\Wbem\wmic.exe
PID 1492 wrote to memory of 2892 N/A C:\Users\Admin\AppData\Local\Temp\Test.exe C:\Windows\System32\Wbem\wmic.exe
PID 1492 wrote to memory of 5092 N/A C:\Users\Admin\AppData\Local\Temp\Test.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1492 wrote to memory of 5092 N/A C:\Users\Admin\AppData\Local\Temp\Test.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1492 wrote to memory of 1920 N/A C:\Users\Admin\AppData\Local\Temp\Test.exe C:\Windows\System32\Wbem\wmic.exe
PID 1492 wrote to memory of 1920 N/A C:\Users\Admin\AppData\Local\Temp\Test.exe C:\Windows\System32\Wbem\wmic.exe

Processes

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

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

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

"wmic.exe" csproduct get uuid

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

"powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\Test.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 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 gstatic.com udp
GB 172.217.16.227:443 gstatic.com tcp
US 8.8.8.8:53 ip-api.com udp
US 208.95.112.1:80 ip-api.com tcp
US 8.8.8.8:53 183.142.211.20.in-addr.arpa udp
US 8.8.8.8:53 1.112.95.208.in-addr.arpa udp
US 8.8.8.8:53 82.90.14.23.in-addr.arpa udp
US 208.95.112.1:80 ip-api.com tcp
US 8.8.8.8:53 64.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 discord.com udp
US 162.159.138.232:443 discord.com tcp
US 8.8.8.8:53 232.138.159.162.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp

Files

memory/1492-0-0x000001B9A28A0000-0x000001B9A2922000-memory.dmp

memory/1492-1-0x00007FFDAABB3000-0x00007FFDAABB5000-memory.dmp

memory/1492-2-0x00007FFDAABB0000-0x00007FFDAB671000-memory.dmp

memory/2280-3-0x00007FFDAABB0000-0x00007FFDAB671000-memory.dmp

memory/2280-9-0x0000027C8B500000-0x0000027C8B522000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ngoerxht.myn.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/2280-14-0x00007FFDAABB0000-0x00007FFDAB671000-memory.dmp

memory/2280-15-0x00007FFDAABB0000-0x00007FFDAB671000-memory.dmp

memory/2280-18-0x00007FFDAABB0000-0x00007FFDAB671000-memory.dmp

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

MD5 d85ba6ff808d9e5444a4b369f5bc2730
SHA1 31aa9d96590fff6981b315e0b391b575e4c0804a
SHA256 84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f
SHA512 8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

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

MD5 6d3e9c29fe44e90aae6ed30ccf799ca8
SHA1 c7974ef72264bbdf13a2793ccf1aed11bc565dce
SHA256 2360634e63e8f0b5748e2c56ebb8f4aa78e71008ea7b5c9ca1c49be03b49557d
SHA512 60c38c4367352537545d859f64b9c5cbada94240478d1d039fd27b5ecba4dc1c90051557c16d802269703b873546ead416279c0a80c6fd5e49ad361cef22596a

memory/1492-33-0x000001B9BD060000-0x000001B9BD0D6000-memory.dmp

memory/1492-34-0x000001B9A45B0000-0x000001B9A4600000-memory.dmp

memory/1492-35-0x000001B9BD110000-0x000001B9BD12E000-memory.dmp

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

MD5 0b8cb2e6dd5794b6a56a4bdbbd430fd7
SHA1 2b08e348c3489c6a35761af073018e3784c12074
SHA256 bcce0d44e33747e4c39df9afbd0a4e98a47ded0188375e4dfdd94cafbb366e1f
SHA512 15ce3b588aa80899f69b0313c7e188d886bddbd09783ca732ac33f9ae8e4e017a72b6f98919f581383a4582732575e5faedb0dea87e01cf2b657424945fdf4d2

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

MD5 276798eeb29a49dc6e199768bc9c2e71
SHA1 5fdc8ccb897ac2df7476fbb07517aca5b7a6205b
SHA256 cd0a1056e8f1b6cb5cb328532239d802f4e2aa8f8fcdc0fcb487684bd68e0dcc
SHA512 0d34fce64bbefc57d64fa6e03ca886952263d5f24df9c1c4cce6a1e8f5a47a9a21e9820f8d38caa7f7b43a52336ce00b738ea18419aaa7c788b72e04ce19e4f2

memory/1492-72-0x000001B9A45A0000-0x000001B9A45AA000-memory.dmp

memory/1492-73-0x000001B9A4620000-0x000001B9A4632000-memory.dmp

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

MD5 ec79fae4e7c09310ebf4f2d85a33a638
SHA1 f2bdd995b12e65e7ed437d228f22223b59e76efb
SHA256 e9c4723a5fe34e081c3d2f548a1d472394cc7aa58056fcf44ca542061381243a
SHA512 af9dda12f6bb388d826fe03a4a8beed9bda23a978aa55a2af6a43271660ee896a7ee3bcf2c4d2f1e6180902791d8c23560f1c2ec097a501d8c6f4f6c49075625

memory/1492-93-0x00007FFDAABB0000-0x00007FFDAB671000-memory.dmp