umbral | fb0e0f437401fbdf3802b3399fd3705100db1c5859680b2240a1f794d48997d7

Analysis

max time kernel
103s
max time network
137s
platform
windows10-2004_x64
resource
win10v2004-20250314-en
resource tags

arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
submitted
14/04/2025, 03:31

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

boosttool1.exe
Size

411KB
MD5

3744fcd13385f8698aefbd25458b555f
SHA1

3ad84176dd5b9a3196fa278be1e8e5ef508ddd21
SHA256

fb0e0f437401fbdf3802b3399fd3705100db1c5859680b2240a1f794d48997d7
SHA512

16a75080102d960f09b904037ee16db0c5bcfa16e551c1450e03bf12bac4908d0516ded36158bab3a165894529144705d69647aebb716882b3e5b1946b3a0a0c
SSDEEP

12288:soZtL+EP8huEPecjfUB1gevPeg/x4s5dMk:kI8wEPecjfUB1gevPegPMk

Score

10^/10

umbral discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral1/memory/5056-1-0x000001EA004C0000-0x000001EA0052C000-memory.dmp	family_umbral

Umbral
Umbral stealer is an opensource moduler stealer written in C#.
stealer umbral
Umbral family
umbral

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
1956	powershell.exe
6076	powershell.exe
432	powershell.exe
1548	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	boosttool1.exe

Reads user/profile data of web browsers 3 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

Credentials from Web Browsers
T1555.003

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

Web Service

T1102

flow	ioc
23	discord.com
22	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
5	ip-api.com

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
4556	PING.EXE
6032	cmd.exe

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
5696	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4556	PING.EXE

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
5056	boosttool1.exe
1956	powershell.exe
1956	powershell.exe
6076	powershell.exe
6076	powershell.exe
432	powershell.exe
432	powershell.exe
788	powershell.exe
788	powershell.exe
1548	powershell.exe
1548	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	5056	boosttool1.exe
Token: SeIncreaseQuotaPrivilege	3912	wmic.exe
Token: SeSecurityPrivilege	3912	wmic.exe
Token: SeTakeOwnershipPrivilege	3912	wmic.exe
Token: SeLoadDriverPrivilege	3912	wmic.exe
Token: SeSystemProfilePrivilege	3912	wmic.exe
Token: SeSystemtimePrivilege	3912	wmic.exe
Token: SeProfSingleProcessPrivilege	3912	wmic.exe
Token: SeIncBasePriorityPrivilege	3912	wmic.exe
Token: SeCreatePagefilePrivilege	3912	wmic.exe
Token: SeBackupPrivilege	3912	wmic.exe
Token: SeRestorePrivilege	3912	wmic.exe
Token: SeShutdownPrivilege	3912	wmic.exe
Token: SeDebugPrivilege	3912	wmic.exe
Token: SeSystemEnvironmentPrivilege	3912	wmic.exe
Token: SeRemoteShutdownPrivilege	3912	wmic.exe
Token: SeUndockPrivilege	3912	wmic.exe
Token: SeManageVolumePrivilege	3912	wmic.exe
Token: 33	3912	wmic.exe
Token: 34	3912	wmic.exe
Token: 35	3912	wmic.exe
Token: 36	3912	wmic.exe
Token: SeIncreaseQuotaPrivilege	3912	wmic.exe
Token: SeSecurityPrivilege	3912	wmic.exe
Token: SeTakeOwnershipPrivilege	3912	wmic.exe
Token: SeLoadDriverPrivilege	3912	wmic.exe
Token: SeSystemProfilePrivilege	3912	wmic.exe
Token: SeSystemtimePrivilege	3912	wmic.exe
Token: SeProfSingleProcessPrivilege	3912	wmic.exe
Token: SeIncBasePriorityPrivilege	3912	wmic.exe
Token: SeCreatePagefilePrivilege	3912	wmic.exe
Token: SeBackupPrivilege	3912	wmic.exe
Token: SeRestorePrivilege	3912	wmic.exe
Token: SeShutdownPrivilege	3912	wmic.exe
Token: SeDebugPrivilege	3912	wmic.exe
Token: SeSystemEnvironmentPrivilege	3912	wmic.exe
Token: SeRemoteShutdownPrivilege	3912	wmic.exe
Token: SeUndockPrivilege	3912	wmic.exe
Token: SeManageVolumePrivilege	3912	wmic.exe
Token: 33	3912	wmic.exe
Token: 34	3912	wmic.exe
Token: 35	3912	wmic.exe
Token: 36	3912	wmic.exe
Token: SeDebugPrivilege	1956	powershell.exe
Token: SeDebugPrivilege	6076	powershell.exe
Token: SeDebugPrivilege	432	powershell.exe
Token: SeDebugPrivilege	788	powershell.exe
Token: SeIncreaseQuotaPrivilege	2824	wmic.exe
Token: SeSecurityPrivilege	2824	wmic.exe
Token: SeTakeOwnershipPrivilege	2824	wmic.exe
Token: SeLoadDriverPrivilege	2824	wmic.exe
Token: SeSystemProfilePrivilege	2824	wmic.exe
Token: SeSystemtimePrivilege	2824	wmic.exe
Token: SeProfSingleProcessPrivilege	2824	wmic.exe
Token: SeIncBasePriorityPrivilege	2824	wmic.exe
Token: SeCreatePagefilePrivilege	2824	wmic.exe
Token: SeBackupPrivilege	2824	wmic.exe
Token: SeRestorePrivilege	2824	wmic.exe
Token: SeShutdownPrivilege	2824	wmic.exe
Token: SeDebugPrivilege	2824	wmic.exe
Token: SeSystemEnvironmentPrivilege	2824	wmic.exe
Token: SeRemoteShutdownPrivilege	2824	wmic.exe
Token: SeUndockPrivilege	2824	wmic.exe
Token: SeManageVolumePrivilege	2824	wmic.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 5056 wrote to memory of 3912	5056	boosttool1.exe	85
PID 5056 wrote to memory of 3912	5056	boosttool1.exe	85
PID 5056 wrote to memory of 5132	5056	boosttool1.exe	91
PID 5056 wrote to memory of 5132	5056	boosttool1.exe	91
PID 5056 wrote to memory of 1956	5056	boosttool1.exe	93
PID 5056 wrote to memory of 1956	5056	boosttool1.exe	93
PID 5056 wrote to memory of 6076	5056	boosttool1.exe	96
PID 5056 wrote to memory of 6076	5056	boosttool1.exe	96
PID 5056 wrote to memory of 432	5056	boosttool1.exe	98
PID 5056 wrote to memory of 432	5056	boosttool1.exe	98
PID 5056 wrote to memory of 788	5056	boosttool1.exe	100
PID 5056 wrote to memory of 788	5056	boosttool1.exe	100
PID 5056 wrote to memory of 2824	5056	boosttool1.exe	104
PID 5056 wrote to memory of 2824	5056	boosttool1.exe	104
PID 5056 wrote to memory of 2240	5056	boosttool1.exe	106
PID 5056 wrote to memory of 2240	5056	boosttool1.exe	106
PID 5056 wrote to memory of 1676	5056	boosttool1.exe	108
PID 5056 wrote to memory of 1676	5056	boosttool1.exe	108
PID 5056 wrote to memory of 1548	5056	boosttool1.exe	111
PID 5056 wrote to memory of 1548	5056	boosttool1.exe	111
PID 5056 wrote to memory of 5696	5056	boosttool1.exe	113
PID 5056 wrote to memory of 5696	5056	boosttool1.exe	113
PID 5056 wrote to memory of 6032	5056	boosttool1.exe	115
PID 5056 wrote to memory of 6032	5056	boosttool1.exe	115
PID 6032 wrote to memory of 4556	6032	cmd.exe	117
PID 6032 wrote to memory of 4556	6032	cmd.exe	117

Views/modifies file attributes 1 TTPs 1 IoCs

defense_evasion

Hidden Files and Directories

T1564.001

pid	Process
5132	attrib.exe

C:\Users\Admin\AppData\Local\Temp\boosttool1.exe
"C:\Users\Admin\AppData\Local\Temp\boosttool1.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5056
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:3912
- C:\Windows\SYSTEM32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\boosttool1.exe"
  2⤵
  - Views/modifies file attributes
  PID:5132
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\boosttool1.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1956
- 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:6076
- 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:432
- 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:788
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2824
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:2240
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:1676
- 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:1548
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:5696
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\boosttool1.exe" && pause
  2⤵
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:6032
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:4556

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Remote System Discovery

T1018

System Information Discovery

T1082

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Web Service

T1102

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
2KB

MD5
d85ba6ff808d9e5444a4b369f5bc2730

SHA1
31aa9d96590fff6981b315e0b391b575e4c0804a

SHA256
84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

SHA512
8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

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

Filesize
944B

MD5
acd80d6d7114a61d8c01c77f78c805fb

SHA1
f0b79e5fd09ae019fe95d994a5b32a6a6922172d

SHA256
2d8d88440ac91d756e52b9029c25684ad2522f9dbb9c800f3929633529497818

SHA512
1cc189cbcdd80466b3418694e025e7ad00b8da0b882096a6e1274e0544b103c3bfcc717f4975ae03eda9f1bca94f7280dcc910ca207d04e44ef8db287ee6a266

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

Filesize
948B

MD5
04dba2e0763acb9b83dcb94ca0f4c2bd

SHA1
626394aea6be984d4817a88a591fea246bf4a362

SHA256
6590267fae391a722c4b8c759c88d9e694daac163148aad7e69faebe045b75e5

SHA512
1f0dff8f0a7d51ba949d994a6194eeb6d376da60769c0ea99d13c39242327a6bb5d4241b890ff0d29b17e39243b4ba1d9aa00ca952c54bbf13ea2abd95d1eb12

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

Filesize
1KB

MD5
548dd08570d121a65e82abb7171cae1c

SHA1
1a1b5084b3a78f3acd0d811cc79dbcac121217ab

SHA256
cdf17b8532ebcebac3cfe23954a30aa32edd268d040da79c82687e4ccb044adc

SHA512
37b98b09178b51eec9599af90d027d2f1028202efc1633047e16e41f1a95610984af5620baac07db085ccfcb96942aafffad17aa1f44f63233e83869dc9f697b

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

Filesize
1KB

MD5
6317adf4fbc43ea2fd68861fafd57155

SHA1
6b87c718893c83c6eed2767e8d9cbc6443e31913

SHA256
c1ead17eef37b4b461cedc276504a441489e819c7f943037f2001966aeec90af

SHA512
17229aae8622e4bfc3caaac55684f7d4ccd3162af5919c851b1d8ac4060b6bb7b75044ecee116523d05acb55197dcb60780958f629450edef386f1e6f65f49f0

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_fbc1j403.ffh.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1956-5-0x00007FF8AC330000-0x00007FF8ACDF1000-memory.dmp

Filesize
10.8MB

Download
memory/1956-3-0x00007FF8AC330000-0x00007FF8ACDF1000-memory.dmp

Filesize
10.8MB

Download
memory/1956-18-0x000001A550560000-0x000001A55077C000-memory.dmp

Filesize
2.1MB

Download
memory/1956-19-0x00007FF8AC330000-0x00007FF8ACDF1000-memory.dmp

Filesize
10.8MB

Download
memory/1956-15-0x000001A5508B0000-0x000001A5508D2000-memory.dmp

Filesize
136KB

Download
memory/1956-4-0x00007FF8AC330000-0x00007FF8ACDF1000-memory.dmp

Filesize
10.8MB

Download
memory/5056-0-0x00007FF8AC333000-0x00007FF8AC335000-memory.dmp

Filesize
8KB

Download
memory/5056-35-0x000001EA1AC90000-0x000001EA1AD06000-memory.dmp

Filesize
472KB

Download
memory/5056-36-0x000001EA022A0000-0x000001EA022F0000-memory.dmp

Filesize
320KB

Download
memory/5056-37-0x000001EA02350000-0x000001EA0236E000-memory.dmp

Filesize
120KB

Download
memory/5056-2-0x00007FF8AC330000-0x00007FF8ACDF1000-memory.dmp

Filesize
10.8MB

Download
memory/5056-73-0x000001EA02290000-0x000001EA0229A000-memory.dmp

Filesize
40KB

Download
memory/5056-74-0x000001EA02330000-0x000001EA02342000-memory.dmp

Filesize
72KB

Download
memory/5056-1-0x000001EA004C0000-0x000001EA0052C000-memory.dmp

Filesize
432KB

Download
memory/5056-92-0x00007FF8AC330000-0x00007FF8ACDF1000-memory.dmp

Filesize
10.8MB

Download
memory/6076-32-0x000001C9EC890000-0x000001C9ECAAC000-memory.dmp

Filesize
2.1MB

Download