umbral | b40b8ae2d3083f53ce18753b29592ba542865938295c4d656ecc649c6038d57b

Analysis

max time kernel
94s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
09/01/2025, 19:56

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

Umbral.exe
Size

229KB
MD5

5ef325936584fbe65e97c89d5787b22b
SHA1

fbe3db5453a683a05c140de6a48169c683ffdb68
SHA256

b40b8ae2d3083f53ce18753b29592ba542865938295c4d656ecc649c6038d57b
SHA512

62db38a9449a7e6bdb0fe26228df1a2a8c9f62a05a28aff043b0e40e0eb2ae91ffc7d765b9fcfd74e981e413ab732f54545fb40ffe7ff0904993ba61fa4c00ad
SSDEEP

6144:lloZM+rIkd8g+EtXHkv/iD4AiblAmB5K9/Cwhl0B9b8e1mJi:noZtL+EP8AiblAmB5K9/Cwhl0z3

Score

10^/10

umbral discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral2/memory/1576-1-0x0000021C9B440000-0x0000021C9B480000-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

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
3112	powershell.exe
4160	powershell.exe
5112	powershell.exe
4440	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	Umbral.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
20	discord.com
21	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
7	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
3916	cmd.exe
2988	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
4664	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2988	PING.EXE

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
1576	Umbral.exe
4440	powershell.exe
4440	powershell.exe
3112	powershell.exe
3112	powershell.exe
4160	powershell.exe
4160	powershell.exe
1448	powershell.exe
1448	powershell.exe
5112	powershell.exe
5112	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1576	Umbral.exe
Token: SeIncreaseQuotaPrivilege	3032	wmic.exe
Token: SeSecurityPrivilege	3032	wmic.exe
Token: SeTakeOwnershipPrivilege	3032	wmic.exe
Token: SeLoadDriverPrivilege	3032	wmic.exe
Token: SeSystemProfilePrivilege	3032	wmic.exe
Token: SeSystemtimePrivilege	3032	wmic.exe
Token: SeProfSingleProcessPrivilege	3032	wmic.exe
Token: SeIncBasePriorityPrivilege	3032	wmic.exe
Token: SeCreatePagefilePrivilege	3032	wmic.exe
Token: SeBackupPrivilege	3032	wmic.exe
Token: SeRestorePrivilege	3032	wmic.exe
Token: SeShutdownPrivilege	3032	wmic.exe
Token: SeDebugPrivilege	3032	wmic.exe
Token: SeSystemEnvironmentPrivilege	3032	wmic.exe
Token: SeRemoteShutdownPrivilege	3032	wmic.exe
Token: SeUndockPrivilege	3032	wmic.exe
Token: SeManageVolumePrivilege	3032	wmic.exe
Token: 33	3032	wmic.exe
Token: 34	3032	wmic.exe
Token: 35	3032	wmic.exe
Token: 36	3032	wmic.exe
Token: SeIncreaseQuotaPrivilege	3032	wmic.exe
Token: SeSecurityPrivilege	3032	wmic.exe
Token: SeTakeOwnershipPrivilege	3032	wmic.exe
Token: SeLoadDriverPrivilege	3032	wmic.exe
Token: SeSystemProfilePrivilege	3032	wmic.exe
Token: SeSystemtimePrivilege	3032	wmic.exe
Token: SeProfSingleProcessPrivilege	3032	wmic.exe
Token: SeIncBasePriorityPrivilege	3032	wmic.exe
Token: SeCreatePagefilePrivilege	3032	wmic.exe
Token: SeBackupPrivilege	3032	wmic.exe
Token: SeRestorePrivilege	3032	wmic.exe
Token: SeShutdownPrivilege	3032	wmic.exe
Token: SeDebugPrivilege	3032	wmic.exe
Token: SeSystemEnvironmentPrivilege	3032	wmic.exe
Token: SeRemoteShutdownPrivilege	3032	wmic.exe
Token: SeUndockPrivilege	3032	wmic.exe
Token: SeManageVolumePrivilege	3032	wmic.exe
Token: 33	3032	wmic.exe
Token: 34	3032	wmic.exe
Token: 35	3032	wmic.exe
Token: 36	3032	wmic.exe
Token: SeDebugPrivilege	4440	powershell.exe
Token: SeDebugPrivilege	3112	powershell.exe
Token: SeDebugPrivilege	4160	powershell.exe
Token: SeDebugPrivilege	1448	powershell.exe
Token: SeIncreaseQuotaPrivilege	648	wmic.exe
Token: SeSecurityPrivilege	648	wmic.exe
Token: SeTakeOwnershipPrivilege	648	wmic.exe
Token: SeLoadDriverPrivilege	648	wmic.exe
Token: SeSystemProfilePrivilege	648	wmic.exe
Token: SeSystemtimePrivilege	648	wmic.exe
Token: SeProfSingleProcessPrivilege	648	wmic.exe
Token: SeIncBasePriorityPrivilege	648	wmic.exe
Token: SeCreatePagefilePrivilege	648	wmic.exe
Token: SeBackupPrivilege	648	wmic.exe
Token: SeRestorePrivilege	648	wmic.exe
Token: SeShutdownPrivilege	648	wmic.exe
Token: SeDebugPrivilege	648	wmic.exe
Token: SeSystemEnvironmentPrivilege	648	wmic.exe
Token: SeRemoteShutdownPrivilege	648	wmic.exe
Token: SeUndockPrivilege	648	wmic.exe
Token: SeManageVolumePrivilege	648	wmic.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 1576 wrote to memory of 3032	1576	Umbral.exe	84
PID 1576 wrote to memory of 3032	1576	Umbral.exe	84
PID 1576 wrote to memory of 3356	1576	Umbral.exe	87
PID 1576 wrote to memory of 3356	1576	Umbral.exe	87
PID 1576 wrote to memory of 4440	1576	Umbral.exe	89
PID 1576 wrote to memory of 4440	1576	Umbral.exe	89
PID 1576 wrote to memory of 3112	1576	Umbral.exe	91
PID 1576 wrote to memory of 3112	1576	Umbral.exe	91
PID 1576 wrote to memory of 4160	1576	Umbral.exe	93
PID 1576 wrote to memory of 4160	1576	Umbral.exe	93
PID 1576 wrote to memory of 1448	1576	Umbral.exe	95
PID 1576 wrote to memory of 1448	1576	Umbral.exe	95
PID 1576 wrote to memory of 648	1576	Umbral.exe	97
PID 1576 wrote to memory of 648	1576	Umbral.exe	97
PID 1576 wrote to memory of 1096	1576	Umbral.exe	99
PID 1576 wrote to memory of 1096	1576	Umbral.exe	99
PID 1576 wrote to memory of 2280	1576	Umbral.exe	101
PID 1576 wrote to memory of 2280	1576	Umbral.exe	101
PID 1576 wrote to memory of 5112	1576	Umbral.exe	103
PID 1576 wrote to memory of 5112	1576	Umbral.exe	103
PID 1576 wrote to memory of 4664	1576	Umbral.exe	105
PID 1576 wrote to memory of 4664	1576	Umbral.exe	105
PID 1576 wrote to memory of 3916	1576	Umbral.exe	107
PID 1576 wrote to memory of 3916	1576	Umbral.exe	107
PID 3916 wrote to memory of 2988	3916	cmd.exe	109
PID 3916 wrote to memory of 2988	3916	cmd.exe	109

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
3356	attrib.exe

C:\Users\Admin\AppData\Local\Temp\Umbral.exe
"C:\Users\Admin\AppData\Local\Temp\Umbral.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1576
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:3032
- C:\Windows\SYSTEM32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\Umbral.exe"
  2⤵
  - Views/modifies file attributes
  PID:3356
- 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
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4440
- 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:3112
- 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:4160
- 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:1448
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:648
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:1096
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:2280
- 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:5112
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:4664
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\Umbral.exe" && pause
  2⤵
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:3916
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:2988

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

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
2e907f77659a6601fcc408274894da2e

SHA1
9f5b72abef1cd7145bf37547cdb1b9254b4efe9d

SHA256
385da35673330e21ac02545220552fe301fe54dedefbdafc097ac4342a295233

SHA512
34fa0fff24f6550f55f828541aaefe5d75c86f8f0842d54b50065e9746f9662bb7209c74c9a9571540b9855bb3851f01db613190024e89b198d485bb5dc07721

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

Filesize
948B

MD5
07d142044fb78e359c794180a9c6fdff

SHA1
8a7155f93a53ff1b7f382a4ccb3f58ff2f88808e

SHA256
2af8c3ca529953085ca25f69d9142964e2ce5508665c14f3533a47d254fed3ea

SHA512
356edd3598c09b765c3de325bc47c5c8ae7fcfd87e8c58e12e8bb6437f1d7ce58310e06c4d64336815833e280f2e61c288edb09508c4f29876d28b0d602aeb78

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

Filesize
1KB

MD5
276798eeb29a49dc6e199768bc9c2e71

SHA1
5fdc8ccb897ac2df7476fbb07517aca5b7a6205b

SHA256
cd0a1056e8f1b6cb5cb328532239d802f4e2aa8f8fcdc0fcb487684bd68e0dcc

SHA512
0d34fce64bbefc57d64fa6e03ca886952263d5f24df9c1c4cce6a1e8f5a47a9a21e9820f8d38caa7f7b43a52336ce00b738ea18419aaa7c788b72e04ce19e4f2

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_izjumvaw.ncq.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1576-72-0x0000021CB5E20000-0x0000021CB5E2A000-memory.dmp

Filesize
40KB

Download
memory/1576-35-0x0000021CB59B0000-0x0000021CB59CE000-memory.dmp

Filesize
120KB

Download
memory/1576-94-0x00007FFEB0B50000-0x00007FFEB1611000-memory.dmp

Filesize
10.8MB

Download
memory/1576-93-0x0000021CB5850000-0x0000021CB5952000-memory.dmp

Filesize
1.0MB

Download
memory/1576-2-0x00007FFEB0B50000-0x00007FFEB1611000-memory.dmp

Filesize
10.8MB

Download
memory/1576-33-0x0000021CB5C80000-0x0000021CB5CF6000-memory.dmp

Filesize
472KB

Download
memory/1576-34-0x0000021CB59E0000-0x0000021CB5A30000-memory.dmp

Filesize
320KB

Download
memory/1576-73-0x0000021CB5E50000-0x0000021CB5E62000-memory.dmp

Filesize
72KB

Download
memory/1576-1-0x0000021C9B440000-0x0000021C9B480000-memory.dmp

Filesize
256KB

Download
memory/1576-0-0x00007FFEB0B53000-0x00007FFEB0B55000-memory.dmp

Filesize
8KB

Download
memory/4440-4-0x00007FFEB0B50000-0x00007FFEB1611000-memory.dmp

Filesize
10.8MB

Download
memory/4440-6-0x00007FFEB0B50000-0x00007FFEB1611000-memory.dmp

Filesize
10.8MB

Download
memory/4440-5-0x0000021671D00000-0x0000021671D22000-memory.dmp

Filesize
136KB

Download
memory/4440-3-0x00007FFEB0B50000-0x00007FFEB1611000-memory.dmp

Filesize
10.8MB

Download
memory/4440-18-0x00007FFEB0B50000-0x00007FFEB1611000-memory.dmp

Filesize
10.8MB

Download