Malware Analysis Report

2024-10-10 10:02

Sample ID 240518-v6peasfc36
Target Roblox Executor.exe
SHA256 7e0b011691401cfc5a7baf2ec11766fc3556f9ec3c30ad58f321d0aa61dc6f1f
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

7e0b011691401cfc5a7baf2ec11766fc3556f9ec3c30ad58f321d0aa61dc6f1f

Threat Level: Known bad

The file Roblox Executor.exe was found to be: Known bad.

Malicious Activity Summary

umbral execution spyware stealer

Detect Umbral payload

Umbral family

Umbral

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

Detects videocard installed

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-18 17:36

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

2024-05-18 17:36

Reported

2024-05-18 17:36

Platform

win10v2004-20240508-en

Max time kernel

16s

Max time network

18s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Roblox Executor.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

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\Roblox Executor.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
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: 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 4356 wrote to memory of 1352 N/A C:\Users\Admin\AppData\Local\Temp\Roblox Executor.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4356 wrote to memory of 1352 N/A C:\Users\Admin\AppData\Local\Temp\Roblox Executor.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4356 wrote to memory of 3304 N/A C:\Users\Admin\AppData\Local\Temp\Roblox Executor.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4356 wrote to memory of 3304 N/A C:\Users\Admin\AppData\Local\Temp\Roblox Executor.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4356 wrote to memory of 3476 N/A C:\Users\Admin\AppData\Local\Temp\Roblox Executor.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4356 wrote to memory of 3476 N/A C:\Users\Admin\AppData\Local\Temp\Roblox Executor.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4356 wrote to memory of 3000 N/A C:\Users\Admin\AppData\Local\Temp\Roblox Executor.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4356 wrote to memory of 3000 N/A C:\Users\Admin\AppData\Local\Temp\Roblox Executor.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4356 wrote to memory of 868 N/A C:\Users\Admin\AppData\Local\Temp\Roblox Executor.exe C:\Windows\System32\Wbem\wmic.exe
PID 4356 wrote to memory of 868 N/A C:\Users\Admin\AppData\Local\Temp\Roblox Executor.exe C:\Windows\System32\Wbem\wmic.exe
PID 4356 wrote to memory of 4736 N/A C:\Users\Admin\AppData\Local\Temp\Roblox Executor.exe C:\Windows\System32\Wbem\wmic.exe
PID 4356 wrote to memory of 4736 N/A C:\Users\Admin\AppData\Local\Temp\Roblox Executor.exe C:\Windows\System32\Wbem\wmic.exe
PID 4356 wrote to memory of 2568 N/A C:\Users\Admin\AppData\Local\Temp\Roblox Executor.exe C:\Windows\System32\Wbem\wmic.exe
PID 4356 wrote to memory of 2568 N/A C:\Users\Admin\AppData\Local\Temp\Roblox Executor.exe C:\Windows\System32\Wbem\wmic.exe
PID 4356 wrote to memory of 4412 N/A C:\Users\Admin\AppData\Local\Temp\Roblox Executor.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4356 wrote to memory of 4412 N/A C:\Users\Admin\AppData\Local\Temp\Roblox Executor.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4356 wrote to memory of 4012 N/A C:\Users\Admin\AppData\Local\Temp\Roblox Executor.exe C:\Windows\System32\Wbem\wmic.exe
PID 4356 wrote to memory of 4012 N/A C:\Users\Admin\AppData\Local\Temp\Roblox Executor.exe C:\Windows\System32\Wbem\wmic.exe

Processes

C:\Users\Admin\AppData\Local\Temp\Roblox Executor.exe

"C:\Users\Admin\AppData\Local\Temp\Roblox Executor.exe"

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

"powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\Roblox Executor.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 172.217.16.227:443 gstatic.com tcp
US 8.8.8.8:53 227.16.217.172.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 240.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 ip-api.com udp
US 8.8.8.8:53 17.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 208.95.112.1:80 ip-api.com tcp
NL 23.62.61.129:443 www.bing.com tcp
US 8.8.8.8:53 discord.com udp
US 162.159.137.232:443 discord.com tcp
US 8.8.8.8:53 1.112.95.208.in-addr.arpa udp
US 8.8.8.8:53 129.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 232.137.159.162.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
NL 23.62.61.129:443 www.bing.com tcp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp

Files

memory/4356-1-0x00007FFED0E03000-0x00007FFED0E05000-memory.dmp

memory/4356-0-0x00000108386B0000-0x00000108386F0000-memory.dmp

memory/4356-2-0x00007FFED0E00000-0x00007FFED18C1000-memory.dmp

memory/1352-12-0x00000202DCC20000-0x00000202DCC42000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_qjxydbkf.yoe.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/1352-13-0x00007FFED0E00000-0x00007FFED18C1000-memory.dmp

memory/1352-14-0x00007FFED0E00000-0x00007FFED18C1000-memory.dmp

memory/1352-15-0x00007FFED0E00000-0x00007FFED18C1000-memory.dmp

memory/1352-18-0x00007FFED0E00000-0x00007FFED18C1000-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/4356-31-0x0000010852DE0000-0x0000010852E56000-memory.dmp

memory/4356-32-0x0000010852E60000-0x0000010852EB0000-memory.dmp

memory/4356-33-0x0000010852DC0000-0x0000010852DDE000-memory.dmp

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

MD5 ab1214368d16125b5f97e5014a91cfd8
SHA1 73ecf983976ebaa0c27c6bddc8d956b27c934197
SHA256 62030acdc8413f7658ed0e27c658ef635766c971862f777bea9dcb4a42c83955
SHA512 7e9d0aa20c3ee9674e09b4b6ac0f95955ba047f8714d8d26915feb2e242f011af1fa5168aa18292f183dab46647fccd182d2ca02029fe6ffd3213d167c6cb440

memory/3476-57-0x000002721C680000-0x000002721C89C000-memory.dmp

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

MD5 88be3bc8a7f90e3953298c0fdbec4d72
SHA1 f4969784ad421cc80ef45608727aacd0f6bf2e4b
SHA256 533c8470b41084e40c5660569ebbdb7496520d449629a235e8053e84025f348a
SHA512 4fce64e2dacddbc03314048fef1ce356ee2647c14733da121c23c65507eeb8d721d6b690ad5463319b364dc4fa95904ad6ab096907f32918e3406ef438a6ef7c

memory/3000-69-0x000001E0AF260000-0x000001E0AF47C000-memory.dmp

memory/4356-71-0x0000010853060000-0x000001085306A000-memory.dmp

memory/4356-72-0x00000108530A0000-0x00000108530B2000-memory.dmp

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

MD5 51c1a86aa41cec8f3e4f182946bdcb06
SHA1 144e53419587ec3d71d9114414bd187e8be0ef9a
SHA256 82777c72c215e8b1253ec2ec6fcc9f14fb49ad55e441f8803cffd8122755d27e
SHA512 401610dfb65b843f5961d59e7f728af41ce33369bd65f0e7707db1554509909803011493c263b88aefea62f901c9ac3bc8994f2bbd7f996dd3d88431d6d4ef5d

memory/4356-90-0x0000010852EB0000-0x0000010853059000-memory.dmp

memory/4356-91-0x00007FFED0E00000-0x00007FFED18C1000-memory.dmp