umbral | 83fa6a1e67c9ecd7ec68e905c4474274340b96b718da2dbab29cc7fcc4c3e414

Analysis

max time kernel
438s
max time network
440s
platform
windows10-2004_x64
resource
win10v2004-20250410-en
resource tags

arch:x64arch:x86image:win10v2004-20250410-enlocale:en-usos:windows10-2004-x64system
submitted
11/04/2025, 10:06

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General

Target

Umbral.exe
Size

229KB
MD5

dcd9253fa3b14afa8d8e636315517897
SHA1

37fcf6a0b4b67e99ad6b4e2c51f0fab9f0874052
SHA256

83fa6a1e67c9ecd7ec68e905c4474274340b96b718da2dbab29cc7fcc4c3e414
SHA512

6cdc1cb0795a2ce33c377141b643b969da1ac7b9708a348115cfe89522f605c99b2f8c3f5cbe08059af0fae1e1a44e9cf05728de7fc50aeb8a78d813e7d80758
SSDEEP

6144:FloZMNrIkd8g+EtXHkv/iD42ZdOecfVeGJeMFXSy3sLb8e1mPwi:HoZmL+EP8EdOecfVeGJeMFXSy3+i

Score

10^/10

umbral execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral2/memory/3636-1-0x0000026D9BA30000-0x0000026D9BA70000-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
2388	powershell.exe
4672	powershell.exe
1364	powershell.exe
3476	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

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

Web Service

T1102

flow	ioc
18	discord.com
20	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
10	ip-api.com

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
5944	wmic.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
3476	powershell.exe
3476	powershell.exe
2388	powershell.exe
2388	powershell.exe
4672	powershell.exe
4672	powershell.exe
4816	powershell.exe
4816	powershell.exe
1364	powershell.exe
1364	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3636	Umbral.exe
Token: SeDebugPrivilege	3476	powershell.exe
Token: SeDebugPrivilege	2388	powershell.exe
Token: SeDebugPrivilege	4672	powershell.exe
Token: SeDebugPrivilege	4816	powershell.exe
Token: SeIncreaseQuotaPrivilege	5184	wmic.exe
Token: SeSecurityPrivilege	5184	wmic.exe
Token: SeTakeOwnershipPrivilege	5184	wmic.exe
Token: SeLoadDriverPrivilege	5184	wmic.exe
Token: SeSystemProfilePrivilege	5184	wmic.exe
Token: SeSystemtimePrivilege	5184	wmic.exe
Token: SeProfSingleProcessPrivilege	5184	wmic.exe
Token: SeIncBasePriorityPrivilege	5184	wmic.exe
Token: SeCreatePagefilePrivilege	5184	wmic.exe
Token: SeBackupPrivilege	5184	wmic.exe
Token: SeRestorePrivilege	5184	wmic.exe
Token: SeShutdownPrivilege	5184	wmic.exe
Token: SeDebugPrivilege	5184	wmic.exe
Token: SeSystemEnvironmentPrivilege	5184	wmic.exe
Token: SeRemoteShutdownPrivilege	5184	wmic.exe
Token: SeUndockPrivilege	5184	wmic.exe
Token: SeManageVolumePrivilege	5184	wmic.exe
Token: 33	5184	wmic.exe
Token: 34	5184	wmic.exe
Token: 35	5184	wmic.exe
Token: 36	5184	wmic.exe
Token: SeIncreaseQuotaPrivilege	5184	wmic.exe
Token: SeSecurityPrivilege	5184	wmic.exe
Token: SeTakeOwnershipPrivilege	5184	wmic.exe
Token: SeLoadDriverPrivilege	5184	wmic.exe
Token: SeSystemProfilePrivilege	5184	wmic.exe
Token: SeSystemtimePrivilege	5184	wmic.exe
Token: SeProfSingleProcessPrivilege	5184	wmic.exe
Token: SeIncBasePriorityPrivilege	5184	wmic.exe
Token: SeCreatePagefilePrivilege	5184	wmic.exe
Token: SeBackupPrivilege	5184	wmic.exe
Token: SeRestorePrivilege	5184	wmic.exe
Token: SeShutdownPrivilege	5184	wmic.exe
Token: SeDebugPrivilege	5184	wmic.exe
Token: SeSystemEnvironmentPrivilege	5184	wmic.exe
Token: SeRemoteShutdownPrivilege	5184	wmic.exe
Token: SeUndockPrivilege	5184	wmic.exe
Token: SeManageVolumePrivilege	5184	wmic.exe
Token: 33	5184	wmic.exe
Token: 34	5184	wmic.exe
Token: 35	5184	wmic.exe
Token: 36	5184	wmic.exe
Token: SeIncreaseQuotaPrivilege	5780	wmic.exe
Token: SeSecurityPrivilege	5780	wmic.exe
Token: SeTakeOwnershipPrivilege	5780	wmic.exe
Token: SeLoadDriverPrivilege	5780	wmic.exe
Token: SeSystemProfilePrivilege	5780	wmic.exe
Token: SeSystemtimePrivilege	5780	wmic.exe
Token: SeProfSingleProcessPrivilege	5780	wmic.exe
Token: SeIncBasePriorityPrivilege	5780	wmic.exe
Token: SeCreatePagefilePrivilege	5780	wmic.exe
Token: SeBackupPrivilege	5780	wmic.exe
Token: SeRestorePrivilege	5780	wmic.exe
Token: SeShutdownPrivilege	5780	wmic.exe
Token: SeDebugPrivilege	5780	wmic.exe
Token: SeSystemEnvironmentPrivilege	5780	wmic.exe
Token: SeRemoteShutdownPrivilege	5780	wmic.exe
Token: SeUndockPrivilege	5780	wmic.exe
Token: SeManageVolumePrivilege	5780	wmic.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 3636 wrote to memory of 3476	3636	Umbral.exe	85
PID 3636 wrote to memory of 3476	3636	Umbral.exe	85
PID 3636 wrote to memory of 2388	3636	Umbral.exe	89
PID 3636 wrote to memory of 2388	3636	Umbral.exe	89
PID 3636 wrote to memory of 4672	3636	Umbral.exe	91
PID 3636 wrote to memory of 4672	3636	Umbral.exe	91
PID 3636 wrote to memory of 4816	3636	Umbral.exe	93
PID 3636 wrote to memory of 4816	3636	Umbral.exe	93
PID 3636 wrote to memory of 5184	3636	Umbral.exe	95
PID 3636 wrote to memory of 5184	3636	Umbral.exe	95
PID 3636 wrote to memory of 5780	3636	Umbral.exe	98
PID 3636 wrote to memory of 5780	3636	Umbral.exe	98
PID 3636 wrote to memory of 5232	3636	Umbral.exe	101
PID 3636 wrote to memory of 5232	3636	Umbral.exe	101
PID 3636 wrote to memory of 1364	3636	Umbral.exe	103
PID 3636 wrote to memory of 1364	3636	Umbral.exe	103
PID 3636 wrote to memory of 5944	3636	Umbral.exe	105
PID 3636 wrote to memory of 5944	3636	Umbral.exe	105

C:\Users\Admin\AppData\Local\Temp\Umbral.exe
"C:\Users\Admin\AppData\Local\Temp\Umbral.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3636
- 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:3476
- 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:2388
- 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:4672
- 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:4816
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:5184
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:5780
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:5232
- 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:1364
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:5944

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

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Information Discovery

T1082

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\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
9f629d2038fddc716e498f0fe618081e

SHA1
58857b3b683f8a34553f0a683ef366baf7b37907

SHA256
4cffd53a4c1299c817c7f9de80ff3bb68e5d7c7c692e93d6ec39d19c1b1998fe

SHA512
bf6455d0553453acd66ec56eef63ea0ac96f0137d8906f162ee2353b3194041c9775f62af5b82cf72c7564549b47abd35db664cbca579c62b565721f84a63ea3

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

Filesize
948B

MD5
c9b6705519e1eef08f86c4ba5f4286f3

SHA1
6c6b179e452ecee2673a1d4fe128f1c06f70577f

SHA256
0f9cad44a79126871580e19b01dc3f880c5173b1faaf8b9018d5d1f829714705

SHA512
6d8f85a7a8b0b124530f36a157cd0441b5c1eacdc35e274af9fbf0569d03d1d5e468651a5b2425f0215c282ecfa7b1ffeaeeaf18612822f00bd14306d30640c7

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
ec79fae4e7c09310ebf4f2d85a33a638

SHA1
f2bdd995b12e65e7ed437d228f22223b59e76efb

SHA256
e9c4723a5fe34e081c3d2f548a1d472394cc7aa58056fcf44ca542061381243a

SHA512
af9dda12f6bb388d826fe03a4a8beed9bda23a978aa55a2af6a43271660ee896a7ee3bcf2c4d2f1e6180902791d8c23560f1c2ec097a501d8c6f4f6c49075625

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_s1xofzyc.tsr.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/3476-17-0x00007FFEFE770000-0x00007FFEFF231000-memory.dmp

Filesize
10.8MB

Download
memory/3476-14-0x00007FFEFE770000-0x00007FFEFF231000-memory.dmp

Filesize
10.8MB

Download
memory/3476-15-0x00007FFEFE770000-0x00007FFEFF231000-memory.dmp

Filesize
10.8MB

Download
memory/3476-10-0x0000016685810000-0x0000016685832000-memory.dmp

Filesize
136KB

Download
memory/3476-9-0x00007FFEFE770000-0x00007FFEFF231000-memory.dmp

Filesize
10.8MB

Download
memory/3636-31-0x0000026D9D900000-0x0000026D9D91E000-memory.dmp

Filesize
120KB

Download
memory/3636-29-0x0000026DB6170000-0x0000026DB61E6000-memory.dmp

Filesize
472KB

Download
memory/3636-30-0x0000026DB61F0000-0x0000026DB6240000-memory.dmp

Filesize
320KB

Download
memory/3636-0-0x00007FFEFE773000-0x00007FFEFE775000-memory.dmp

Filesize
8KB

Download
memory/3636-2-0x00007FFEFE770000-0x00007FFEFF231000-memory.dmp

Filesize
10.8MB

Download
memory/3636-67-0x0000026DB6110000-0x0000026DB611A000-memory.dmp

Filesize
40KB

Download
memory/3636-68-0x0000026DB6340000-0x0000026DB6352000-memory.dmp

Filesize
72KB

Download
memory/3636-1-0x0000026D9BA30000-0x0000026D9BA70000-memory.dmp

Filesize
256KB

Download
memory/3636-86-0x00007FFEFE770000-0x00007FFEFF231000-memory.dmp

Filesize
10.8MB

Download