umbral | 8550e87dd9fdf57261a475e8a656d529a7872e387eea53997649b5c0c37a0422

Analysis

max time kernel
97s
max time network
100s
platform
windows11-21h2_x64
resource
win11-20250411-en
resource tags

arch:x64arch:x86image:win11-20250411-enlocale:en-usos:windows11-21h2-x64system
submitted
14/04/2025, 06:25

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General

Target

Luciano.exe
Size

231KB
MD5

c5c17fc158c3086aac72e74186863dec
SHA1

65f0235d98e9e6627180fa7880e4722e70785f60
SHA256

8550e87dd9fdf57261a475e8a656d529a7872e387eea53997649b5c0c37a0422
SHA512

448a6f4b4b89446c281bdda023713e2c7870287a9ceec6b3d130fb185ee7dda40fcff92e8d1c9cc0bae6945f09e48f78030d8899374297136b0c07878283a533
SSDEEP

6144:3loZM+rIkd8g+EtXHkv/iD4xQa4SQPL4ZBECDjatC/b8e1moi:VoZtL+EP8xQa4SQPL4ZBECDjauK

Score

10^/10

umbral discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral1/memory/2552-1-0x00000197F5160000-0x00000197F51A0000-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
5236	powershell.exe
4888	powershell.exe
5036	powershell.exe
4516	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	Luciano.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
1	discord.com
5	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
1	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
3528	cmd.exe
5440	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
2964	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
5440	PING.EXE

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
2552	Luciano.exe
5236	powershell.exe
5236	powershell.exe
4888	powershell.exe
4888	powershell.exe
5036	powershell.exe
5036	powershell.exe
5408	powershell.exe
5408	powershell.exe
4516	powershell.exe
4516	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2552	Luciano.exe
Token: SeIncreaseQuotaPrivilege	3796	wmic.exe
Token: SeSecurityPrivilege	3796	wmic.exe
Token: SeTakeOwnershipPrivilege	3796	wmic.exe
Token: SeLoadDriverPrivilege	3796	wmic.exe
Token: SeSystemProfilePrivilege	3796	wmic.exe
Token: SeSystemtimePrivilege	3796	wmic.exe
Token: SeProfSingleProcessPrivilege	3796	wmic.exe
Token: SeIncBasePriorityPrivilege	3796	wmic.exe
Token: SeCreatePagefilePrivilege	3796	wmic.exe
Token: SeBackupPrivilege	3796	wmic.exe
Token: SeRestorePrivilege	3796	wmic.exe
Token: SeShutdownPrivilege	3796	wmic.exe
Token: SeDebugPrivilege	3796	wmic.exe
Token: SeSystemEnvironmentPrivilege	3796	wmic.exe
Token: SeRemoteShutdownPrivilege	3796	wmic.exe
Token: SeUndockPrivilege	3796	wmic.exe
Token: SeManageVolumePrivilege	3796	wmic.exe
Token: 33	3796	wmic.exe
Token: 34	3796	wmic.exe
Token: 35	3796	wmic.exe
Token: 36	3796	wmic.exe
Token: SeIncreaseQuotaPrivilege	3796	wmic.exe
Token: SeSecurityPrivilege	3796	wmic.exe
Token: SeTakeOwnershipPrivilege	3796	wmic.exe
Token: SeLoadDriverPrivilege	3796	wmic.exe
Token: SeSystemProfilePrivilege	3796	wmic.exe
Token: SeSystemtimePrivilege	3796	wmic.exe
Token: SeProfSingleProcessPrivilege	3796	wmic.exe
Token: SeIncBasePriorityPrivilege	3796	wmic.exe
Token: SeCreatePagefilePrivilege	3796	wmic.exe
Token: SeBackupPrivilege	3796	wmic.exe
Token: SeRestorePrivilege	3796	wmic.exe
Token: SeShutdownPrivilege	3796	wmic.exe
Token: SeDebugPrivilege	3796	wmic.exe
Token: SeSystemEnvironmentPrivilege	3796	wmic.exe
Token: SeRemoteShutdownPrivilege	3796	wmic.exe
Token: SeUndockPrivilege	3796	wmic.exe
Token: SeManageVolumePrivilege	3796	wmic.exe
Token: 33	3796	wmic.exe
Token: 34	3796	wmic.exe
Token: 35	3796	wmic.exe
Token: 36	3796	wmic.exe
Token: SeDebugPrivilege	5236	powershell.exe
Token: SeDebugPrivilege	4888	powershell.exe
Token: SeDebugPrivilege	5036	powershell.exe
Token: SeDebugPrivilege	5408	powershell.exe
Token: SeIncreaseQuotaPrivilege	1412	wmic.exe
Token: SeSecurityPrivilege	1412	wmic.exe
Token: SeTakeOwnershipPrivilege	1412	wmic.exe
Token: SeLoadDriverPrivilege	1412	wmic.exe
Token: SeSystemProfilePrivilege	1412	wmic.exe
Token: SeSystemtimePrivilege	1412	wmic.exe
Token: SeProfSingleProcessPrivilege	1412	wmic.exe
Token: SeIncBasePriorityPrivilege	1412	wmic.exe
Token: SeCreatePagefilePrivilege	1412	wmic.exe
Token: SeBackupPrivilege	1412	wmic.exe
Token: SeRestorePrivilege	1412	wmic.exe
Token: SeShutdownPrivilege	1412	wmic.exe
Token: SeDebugPrivilege	1412	wmic.exe
Token: SeSystemEnvironmentPrivilege	1412	wmic.exe
Token: SeRemoteShutdownPrivilege	1412	wmic.exe
Token: SeUndockPrivilege	1412	wmic.exe
Token: SeManageVolumePrivilege	1412	wmic.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 2552 wrote to memory of 3796	2552	Luciano.exe	78
PID 2552 wrote to memory of 3796	2552	Luciano.exe	78
PID 2552 wrote to memory of 908	2552	Luciano.exe	81
PID 2552 wrote to memory of 908	2552	Luciano.exe	81
PID 2552 wrote to memory of 5236	2552	Luciano.exe	83
PID 2552 wrote to memory of 5236	2552	Luciano.exe	83
PID 2552 wrote to memory of 4888	2552	Luciano.exe	85
PID 2552 wrote to memory of 4888	2552	Luciano.exe	85
PID 2552 wrote to memory of 5036	2552	Luciano.exe	87
PID 2552 wrote to memory of 5036	2552	Luciano.exe	87
PID 2552 wrote to memory of 5408	2552	Luciano.exe	89
PID 2552 wrote to memory of 5408	2552	Luciano.exe	89
PID 2552 wrote to memory of 1412	2552	Luciano.exe	91
PID 2552 wrote to memory of 1412	2552	Luciano.exe	91
PID 2552 wrote to memory of 3512	2552	Luciano.exe	93
PID 2552 wrote to memory of 3512	2552	Luciano.exe	93
PID 2552 wrote to memory of 5840	2552	Luciano.exe	95
PID 2552 wrote to memory of 5840	2552	Luciano.exe	95
PID 2552 wrote to memory of 4516	2552	Luciano.exe	97
PID 2552 wrote to memory of 4516	2552	Luciano.exe	97
PID 2552 wrote to memory of 2964	2552	Luciano.exe	99
PID 2552 wrote to memory of 2964	2552	Luciano.exe	99
PID 2552 wrote to memory of 3528	2552	Luciano.exe	101
PID 2552 wrote to memory of 3528	2552	Luciano.exe	101
PID 3528 wrote to memory of 5440	3528	cmd.exe	103
PID 3528 wrote to memory of 5440	3528	cmd.exe	103

Views/modifies file attributes 1 TTPs 1 IoCs

defense_evasion

Hidden Files and Directories

T1564.001

pid	Process
908	attrib.exe

C:\Users\Admin\AppData\Local\Temp\Luciano.exe
"C:\Users\Admin\AppData\Local\Temp\Luciano.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2552
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:3796
- C:\Windows\SYSTEM32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\Luciano.exe"
  2⤵
  - Views/modifies file attributes
  PID:908
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\Luciano.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:5236
- 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:4888
- 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:5036
- 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:5408
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1412
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:3512
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:5840
- 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:4516
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:2964
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\Luciano.exe" && pause
  2⤵
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:3528
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:5440

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
627073ee3ca9676911bee35548eff2b8

SHA1
4c4b68c65e2cab9864b51167d710aa29ebdcff2e

SHA256
85b280a39fc31ba1e15fb06102a05b8405ff3b82feb181d4170f04e466dd647c

SHA512
3c5f6c03e253b83c57e8d6f0334187dbdcdf4fa549eecd36cbc1322dca6d3ca891dc6a019c49ec2eafb88f82d0434299c31e4dfaab123acb42e0546218f311fb

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

Filesize
944B

MD5
2e8eb51096d6f6781456fef7df731d97

SHA1
ec2aaf851a618fb43c3d040a13a71997c25bda43

SHA256
96bfd9dd5883329927fe8c08b8956355a1a6ceb30ceeb5d4252b346df32bc864

SHA512
0a73dc9a49f92d9dd556c2ca2e36761890b3538f355ee1f013e7cf648d8c4d065f28046cd4a167db3dea304d1fbcbcea68d11ce6e12a3f20f8b6c018a60422d2

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

Filesize
948B

MD5
45741c307af2576c6437c5fdb24ef9ce

SHA1
a6ba7a7705db14ac29a18a98dd7deb4cc759c3bf

SHA256
7887859f7179e194ff9b78f8d8fa3830790110a01597f21ff48c84cd935e49d2

SHA512
39fdc5931563cbf826e8b643b5f0dcdf45bb6f95a8eeb460499257ca41b3dbee4c692eaacc3fd33bddf4b6ff0c828981ed7e9cd080007bbb9f0b28e7d0d66941

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

Filesize
1KB

MD5
7332074ae2b01262736b6fbd9e100dac

SHA1
22f992165065107cc9417fa4117240d84414a13c

SHA256
baea84fda6c1f13090b8cbd91c920848946f10ce155ef31a1df4cd453ee7e4aa

SHA512
4ae6f0e012c31ac1fc2ff4a8877ce2b4667c45b6e651de798318a39a2b6fd39a6f72dffa8b0b89b7a045a27d724d195656faa25a9fec79b22f37ddebb5d22da2

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

Filesize
1KB

MD5
6ca67a1a64ff4dd3f09a2393fccba8fa

SHA1
906350e7db31efc71679bbdbbcf1133aa2d31c1d

SHA256
6bc103c2e75b013034c77bb204ccbe43c365e9b6cb1697b9b5a1e20dda43427e

SHA512
4d1d3d52107b2eb2faf6918d0559a08acbe89b6a889f6300c55742d91f596a6764c637fc386c80ecbc434d0496ee83f243054c66b9eeb7adef4b2093e932b066

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ms2hc0hw.5sr.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2552-67-0x00000197F78E0000-0x00000197F78EA000-memory.dmp

Filesize
40KB

Download
memory/2552-33-0x00000197F78A0000-0x00000197F78BE000-memory.dmp

Filesize
120KB

Download
memory/2552-85-0x00007FF966F10000-0x00007FF9679D2000-memory.dmp

Filesize
10.8MB

Download
memory/2552-68-0x00000197F79F0000-0x00000197F7A02000-memory.dmp

Filesize
72KB

Download
memory/2552-2-0x00007FF966F10000-0x00007FF9679D2000-memory.dmp

Filesize
10.8MB

Download
memory/2552-31-0x00000197F7920000-0x00000197F7996000-memory.dmp

Filesize
472KB

Download
memory/2552-32-0x00000197F79A0000-0x00000197F79F0000-memory.dmp

Filesize
320KB

Download
memory/2552-0-0x00007FF966F13000-0x00007FF966F15000-memory.dmp

Filesize
8KB

Download
memory/2552-1-0x00000197F5160000-0x00000197F51A0000-memory.dmp

Filesize
256KB

Download
memory/5236-14-0x00007FF966F10000-0x00007FF9679D2000-memory.dmp

Filesize
10.8MB

Download
memory/5236-11-0x000001FC7DC10000-0x000001FC7DC32000-memory.dmp

Filesize
136KB

Download
memory/5236-13-0x00007FF966F10000-0x00007FF9679D2000-memory.dmp

Filesize
10.8MB

Download
memory/5236-12-0x00007FF966F10000-0x00007FF9679D2000-memory.dmp

Filesize
10.8MB

Download
memory/5236-17-0x00007FF966F10000-0x00007FF9679D2000-memory.dmp

Filesize
10.8MB

Download