umbral | 83fa6a1e67c9ecd7ec68e905c4474274340b96b718da2dbab29cc7fcc4c3e414

Analysis

max time kernel
104s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20250314-en
resource tags

arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
submitted
11/04/2025, 10:23

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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
behavioral1/memory/5796-1-0x0000026AC9310000-0x0000026AC9350000-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
5772	powershell.exe
4772	powershell.exe
1592	powershell.exe
5788	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
21	discord.com
22	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
19	ip-api.com

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
2912	wmic.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
5788	powershell.exe
5788	powershell.exe
5772	powershell.exe
5772	powershell.exe
4772	powershell.exe
4772	powershell.exe
2276	powershell.exe
2276	powershell.exe
1592	powershell.exe
1592	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	5796	Umbral.exe
Token: SeDebugPrivilege	5788	powershell.exe
Token: SeDebugPrivilege	5772	powershell.exe
Token: SeDebugPrivilege	4772	powershell.exe
Token: SeDebugPrivilege	2276	powershell.exe
Token: SeIncreaseQuotaPrivilege	4820	wmic.exe
Token: SeSecurityPrivilege	4820	wmic.exe
Token: SeTakeOwnershipPrivilege	4820	wmic.exe
Token: SeLoadDriverPrivilege	4820	wmic.exe
Token: SeSystemProfilePrivilege	4820	wmic.exe
Token: SeSystemtimePrivilege	4820	wmic.exe
Token: SeProfSingleProcessPrivilege	4820	wmic.exe
Token: SeIncBasePriorityPrivilege	4820	wmic.exe
Token: SeCreatePagefilePrivilege	4820	wmic.exe
Token: SeBackupPrivilege	4820	wmic.exe
Token: SeRestorePrivilege	4820	wmic.exe
Token: SeShutdownPrivilege	4820	wmic.exe
Token: SeDebugPrivilege	4820	wmic.exe
Token: SeSystemEnvironmentPrivilege	4820	wmic.exe
Token: SeRemoteShutdownPrivilege	4820	wmic.exe
Token: SeUndockPrivilege	4820	wmic.exe
Token: SeManageVolumePrivilege	4820	wmic.exe
Token: 33	4820	wmic.exe
Token: 34	4820	wmic.exe
Token: 35	4820	wmic.exe
Token: 36	4820	wmic.exe
Token: SeIncreaseQuotaPrivilege	4820	wmic.exe
Token: SeSecurityPrivilege	4820	wmic.exe
Token: SeTakeOwnershipPrivilege	4820	wmic.exe
Token: SeLoadDriverPrivilege	4820	wmic.exe
Token: SeSystemProfilePrivilege	4820	wmic.exe
Token: SeSystemtimePrivilege	4820	wmic.exe
Token: SeProfSingleProcessPrivilege	4820	wmic.exe
Token: SeIncBasePriorityPrivilege	4820	wmic.exe
Token: SeCreatePagefilePrivilege	4820	wmic.exe
Token: SeBackupPrivilege	4820	wmic.exe
Token: SeRestorePrivilege	4820	wmic.exe
Token: SeShutdownPrivilege	4820	wmic.exe
Token: SeDebugPrivilege	4820	wmic.exe
Token: SeSystemEnvironmentPrivilege	4820	wmic.exe
Token: SeRemoteShutdownPrivilege	4820	wmic.exe
Token: SeUndockPrivilege	4820	wmic.exe
Token: SeManageVolumePrivilege	4820	wmic.exe
Token: 33	4820	wmic.exe
Token: 34	4820	wmic.exe
Token: 35	4820	wmic.exe
Token: 36	4820	wmic.exe
Token: SeIncreaseQuotaPrivilege	2896	wmic.exe
Token: SeSecurityPrivilege	2896	wmic.exe
Token: SeTakeOwnershipPrivilege	2896	wmic.exe
Token: SeLoadDriverPrivilege	2896	wmic.exe
Token: SeSystemProfilePrivilege	2896	wmic.exe
Token: SeSystemtimePrivilege	2896	wmic.exe
Token: SeProfSingleProcessPrivilege	2896	wmic.exe
Token: SeIncBasePriorityPrivilege	2896	wmic.exe
Token: SeCreatePagefilePrivilege	2896	wmic.exe
Token: SeBackupPrivilege	2896	wmic.exe
Token: SeRestorePrivilege	2896	wmic.exe
Token: SeShutdownPrivilege	2896	wmic.exe
Token: SeDebugPrivilege	2896	wmic.exe
Token: SeSystemEnvironmentPrivilege	2896	wmic.exe
Token: SeRemoteShutdownPrivilege	2896	wmic.exe
Token: SeUndockPrivilege	2896	wmic.exe
Token: SeManageVolumePrivilege	2896	wmic.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 5796 wrote to memory of 5788	5796	Umbral.exe	86
PID 5796 wrote to memory of 5788	5796	Umbral.exe	86
PID 5796 wrote to memory of 5772	5796	Umbral.exe	88
PID 5796 wrote to memory of 5772	5796	Umbral.exe	88
PID 5796 wrote to memory of 4772	5796	Umbral.exe	91
PID 5796 wrote to memory of 4772	5796	Umbral.exe	91
PID 5796 wrote to memory of 2276	5796	Umbral.exe	93
PID 5796 wrote to memory of 2276	5796	Umbral.exe	93
PID 5796 wrote to memory of 4820	5796	Umbral.exe	99
PID 5796 wrote to memory of 4820	5796	Umbral.exe	99
PID 5796 wrote to memory of 2896	5796	Umbral.exe	102
PID 5796 wrote to memory of 2896	5796	Umbral.exe	102
PID 5796 wrote to memory of 5124	5796	Umbral.exe	104
PID 5796 wrote to memory of 5124	5796	Umbral.exe	104
PID 5796 wrote to memory of 1592	5796	Umbral.exe	106
PID 5796 wrote to memory of 1592	5796	Umbral.exe	106
PID 5796 wrote to memory of 2912	5796	Umbral.exe	108
PID 5796 wrote to memory of 2912	5796	Umbral.exe	108

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:5796
- 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:5788
- 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:5772
- 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:4772
- 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:2276
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:4820
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2896
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:5124
- 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:1592
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:2912

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\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
f4bf3ca8753d6bb9725419fec1ec74b9

SHA1
71fce9d17d1d92873236a9a827c52eb9e4827f3d

SHA256
ca8697e4ada4c3d4aac2899b8aad4052ccd605fccee05ee0a831368bde2f7417

SHA512
a55a107ae8bcf833ea674413c765cd55096146c9634dff41884fcc851c12fe47753308099525c99ae44883facfb668c8b292dd915263f34ebd1190391cb28a54

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

Filesize
1KB

MD5
da03e01bb1e13c5593859a35105e89e5

SHA1
69010b9093ebcaff1bc9b3dd6c49e43976a71a18

SHA256
6ac5c8f9e0eae9fdebf47f629ded963e23d28b130c48d767efe65bda9d580a3d

SHA512
616f49f623a76f750b4b3b3aa2b2d60ddf5c9259eee0273f1cdbd770f6667d77fe17363748ee844f881983681268af1cf1befdb75c7cab7650ecf011c8849721

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

Filesize
1KB

MD5
5138b108879c9bb772d8a0b03c0bc24b

SHA1
33bbfa8f5fc8c101f88c130f2f4791b054a626be

SHA256
f2c7b413c37d6d722c9e1db824f97f2859b4f0c095674f9da9e014646f179634

SHA512
f55872b42563a158479eef6b29360cdcfdf14ebcf923c54362483da7308d5bd4b661d2fdc79e372a9c5823fb1374c002afc4971f917ae68a23d317c2a7b3b370

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_zhy0gyk2.a0g.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/5788-13-0x00000209DCFF0000-0x00000209DD012000-memory.dmp

Filesize
136KB

Download
memory/5788-14-0x00007FFD37180000-0x00007FFD37C41000-memory.dmp

Filesize
10.8MB

Download
memory/5788-15-0x00007FFD37180000-0x00007FFD37C41000-memory.dmp

Filesize
10.8MB

Download
memory/5788-18-0x00007FFD37180000-0x00007FFD37C41000-memory.dmp

Filesize
10.8MB

Download
memory/5788-3-0x00007FFD37180000-0x00007FFD37C41000-memory.dmp

Filesize
10.8MB

Download
memory/5796-32-0x0000026AE3A30000-0x0000026AE3A80000-memory.dmp

Filesize
320KB

Download
memory/5796-31-0x0000026AE3AB0000-0x0000026AE3B26000-memory.dmp

Filesize
472KB

Download
memory/5796-33-0x0000026ACB230000-0x0000026ACB24E000-memory.dmp

Filesize
120KB

Download
memory/5796-1-0x0000026AC9310000-0x0000026AC9350000-memory.dmp

Filesize
256KB

Download
memory/5796-0-0x00007FFD37183000-0x00007FFD37185000-memory.dmp

Filesize
8KB

Download
memory/5796-69-0x0000026AE3A80000-0x0000026AE3A8A000-memory.dmp

Filesize
40KB

Download
memory/5796-70-0x0000026AE3C50000-0x0000026AE3C62000-memory.dmp

Filesize
72KB

Download
memory/5796-2-0x00007FFD37180000-0x00007FFD37C41000-memory.dmp

Filesize
10.8MB

Download
memory/5796-88-0x00007FFD37180000-0x00007FFD37C41000-memory.dmp

Filesize
10.8MB

Download