umbral | dccdba44701fbf3031e6a2ad016cb702c7941ca2abbc754ba60b1d0ca5396e82

Analysis

max time kernel
94s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20250207-en
resource tags

arch:x64arch:x86image:win10v2004-20250207-enlocale:en-usos:windows10-2004-x64system
submitted
11/02/2025, 13:34

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General

Target

Umbral1.exe
Size

221KB
MD5

fe655b03add462121d67240f461e8787
SHA1

73907706fdf7922ba19a27f4b1fd315f7c107efe
SHA256

dccdba44701fbf3031e6a2ad016cb702c7941ca2abbc754ba60b1d0ca5396e82
SHA512

c00653793e37dee5b4bdc5cbd0194038928e03dfb8a3e8910c54d8c20133e163c59c36fb6989c180c3fb9e39e9a37d3544292f55fd92367749e7fa143c4c8b7b
SSDEEP

6144:KloZMUrIkd8g+EtXHkv/iD439sJNlK8euYi:0oZrL+EP8Na

Score

10^/10

umbral discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral2/memory/2112-1-0x000001D69CFA0000-0x000001D69CFDE000-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

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
3948	powershell.exe
3528	powershell.exe
3544	powershell.exe
828	powershell.exe

Downloads MZ/PE file 1 IoCs

flow	pid	Process
60	2676	Process not Found

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	Umbral1.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
23	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
15	ip-api.com

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MicrosoftEdgeUpdate.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 3 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
3032	cmd.exe
2480	PING.EXE
1308	MicrosoftEdgeUpdate.exe

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
4956	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2480	PING.EXE

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
3948	powershell.exe
3948	powershell.exe
3528	powershell.exe
3528	powershell.exe
3544	powershell.exe
3544	powershell.exe
232	powershell.exe
232	powershell.exe
828	powershell.exe
828	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2112	Umbral1.exe
Token: SeDebugPrivilege	3948	powershell.exe
Token: SeDebugPrivilege	3528	powershell.exe
Token: SeDebugPrivilege	3544	powershell.exe
Token: SeDebugPrivilege	232	powershell.exe
Token: SeIncreaseQuotaPrivilege	1484	wmic.exe
Token: SeSecurityPrivilege	1484	wmic.exe
Token: SeTakeOwnershipPrivilege	1484	wmic.exe
Token: SeLoadDriverPrivilege	1484	wmic.exe
Token: SeSystemProfilePrivilege	1484	wmic.exe
Token: SeSystemtimePrivilege	1484	wmic.exe
Token: SeProfSingleProcessPrivilege	1484	wmic.exe
Token: SeIncBasePriorityPrivilege	1484	wmic.exe
Token: SeCreatePagefilePrivilege	1484	wmic.exe
Token: SeBackupPrivilege	1484	wmic.exe
Token: SeRestorePrivilege	1484	wmic.exe
Token: SeShutdownPrivilege	1484	wmic.exe
Token: SeDebugPrivilege	1484	wmic.exe
Token: SeSystemEnvironmentPrivilege	1484	wmic.exe
Token: SeRemoteShutdownPrivilege	1484	wmic.exe
Token: SeUndockPrivilege	1484	wmic.exe
Token: SeManageVolumePrivilege	1484	wmic.exe
Token: 33	1484	wmic.exe
Token: 34	1484	wmic.exe
Token: 35	1484	wmic.exe
Token: 36	1484	wmic.exe
Token: SeIncreaseQuotaPrivilege	1484	wmic.exe
Token: SeSecurityPrivilege	1484	wmic.exe
Token: SeTakeOwnershipPrivilege	1484	wmic.exe
Token: SeLoadDriverPrivilege	1484	wmic.exe
Token: SeSystemProfilePrivilege	1484	wmic.exe
Token: SeSystemtimePrivilege	1484	wmic.exe
Token: SeProfSingleProcessPrivilege	1484	wmic.exe
Token: SeIncBasePriorityPrivilege	1484	wmic.exe
Token: SeCreatePagefilePrivilege	1484	wmic.exe
Token: SeBackupPrivilege	1484	wmic.exe
Token: SeRestorePrivilege	1484	wmic.exe
Token: SeShutdownPrivilege	1484	wmic.exe
Token: SeDebugPrivilege	1484	wmic.exe
Token: SeSystemEnvironmentPrivilege	1484	wmic.exe
Token: SeRemoteShutdownPrivilege	1484	wmic.exe
Token: SeUndockPrivilege	1484	wmic.exe
Token: SeManageVolumePrivilege	1484	wmic.exe
Token: 33	1484	wmic.exe
Token: 34	1484	wmic.exe
Token: 35	1484	wmic.exe
Token: 36	1484	wmic.exe
Token: SeIncreaseQuotaPrivilege	3464	wmic.exe
Token: SeSecurityPrivilege	3464	wmic.exe
Token: SeTakeOwnershipPrivilege	3464	wmic.exe
Token: SeLoadDriverPrivilege	3464	wmic.exe
Token: SeSystemProfilePrivilege	3464	wmic.exe
Token: SeSystemtimePrivilege	3464	wmic.exe
Token: SeProfSingleProcessPrivilege	3464	wmic.exe
Token: SeIncBasePriorityPrivilege	3464	wmic.exe
Token: SeCreatePagefilePrivilege	3464	wmic.exe
Token: SeBackupPrivilege	3464	wmic.exe
Token: SeRestorePrivilege	3464	wmic.exe
Token: SeShutdownPrivilege	3464	wmic.exe
Token: SeDebugPrivilege	3464	wmic.exe
Token: SeSystemEnvironmentPrivilege	3464	wmic.exe
Token: SeRemoteShutdownPrivilege	3464	wmic.exe
Token: SeUndockPrivilege	3464	wmic.exe
Token: SeManageVolumePrivilege	3464	wmic.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 2112 wrote to memory of 3004	2112	Umbral1.exe	89
PID 2112 wrote to memory of 3004	2112	Umbral1.exe	89
PID 2112 wrote to memory of 3948	2112	Umbral1.exe	91
PID 2112 wrote to memory of 3948	2112	Umbral1.exe	91
PID 2112 wrote to memory of 3528	2112	Umbral1.exe	93
PID 2112 wrote to memory of 3528	2112	Umbral1.exe	93
PID 2112 wrote to memory of 3544	2112	Umbral1.exe	95
PID 2112 wrote to memory of 3544	2112	Umbral1.exe	95
PID 2112 wrote to memory of 232	2112	Umbral1.exe	97
PID 2112 wrote to memory of 232	2112	Umbral1.exe	97
PID 2112 wrote to memory of 1484	2112	Umbral1.exe	99
PID 2112 wrote to memory of 1484	2112	Umbral1.exe	99
PID 2112 wrote to memory of 3464	2112	Umbral1.exe	102
PID 2112 wrote to memory of 3464	2112	Umbral1.exe	102
PID 2112 wrote to memory of 4452	2112	Umbral1.exe	104
PID 2112 wrote to memory of 4452	2112	Umbral1.exe	104
PID 2112 wrote to memory of 828	2112	Umbral1.exe	106
PID 2112 wrote to memory of 828	2112	Umbral1.exe	106
PID 2112 wrote to memory of 4956	2112	Umbral1.exe	108
PID 2112 wrote to memory of 4956	2112	Umbral1.exe	108
PID 2112 wrote to memory of 3032	2112	Umbral1.exe	112
PID 2112 wrote to memory of 3032	2112	Umbral1.exe	112
PID 3032 wrote to memory of 2480	3032	cmd.exe	114
PID 3032 wrote to memory of 2480	3032	cmd.exe	114

Views/modifies file attributes 1 TTPs 1 IoCs

defense_evasion

Hidden Files and Directories

T1564.001

pid	Process
3004	attrib.exe

C:\Users\Admin\AppData\Local\Temp\Umbral1.exe
"C:\Users\Admin\AppData\Local\Temp\Umbral1.exe"
1⤵
- Drops file in Drivers directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2112
- C:\Windows\SYSTEM32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\Umbral1.exe"
  2⤵
  - Views/modifies file attributes
  PID:3004
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\Umbral1.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3948
- 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:3528
- 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:3544
- 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:232
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1484
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:3464
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:4452
- 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:828
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:4956
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\Umbral1.exe" && pause
  2⤵
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:3032
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:2480

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSIzIiBpbnN0YWxsZGF0ZXRpbWU9IjE3Mzg5NDU5MjEiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4MzQxODE5ODA3NzAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI1NDk1ODA4NTYwIi8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:1308

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 Location Discovery

T1614

System Language Discovery

T1614.001

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

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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
6d3e9c29fe44e90aae6ed30ccf799ca8

SHA1
c7974ef72264bbdf13a2793ccf1aed11bc565dce

SHA256
2360634e63e8f0b5748e2c56ebb8f4aa78e71008ea7b5c9ca1c49be03b49557d

SHA512
60c38c4367352537545d859f64b9c5cbada94240478d1d039fd27b5ecba4dc1c90051557c16d802269703b873546ead416279c0a80c6fd5e49ad361cef22596a

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

Filesize
948B

MD5
28ef595a6cc9f47b8eccb22d4ed50d6c

SHA1
4335de707324b15eba79017938c3da2752d3eea5

SHA256
3abd14d4fe7b5697b2fa84993e7183f4fd2580be5b4e5150da15ddda5a9560b9

SHA512
687b7849faa62a4dabc240b573afa163f0cda9a80be61cebe28ef1461777744d73b465ac92d065093228068540846e79c899445057f5b906f9b9fa9868132208

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
77fad1dec6867fb7dd395c25c46d8ae5

SHA1
abfecfd6c63bb35ec88d98ef210adefc139d793e

SHA256
02b0ab469998ac630b421de245ee243599422e7f2c2f9714085fc5b837891784

SHA512
ac8d9d660992d076e46ffdb7422d4916789a7ca2f5737c711449f518745dee197ed1c08e50f81f92cb7d2d1ea94fe024e77a8295e1be05c5a49a0fd7495776d3

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_vzpdyq0k.4yn.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2112-71-0x000001D6B7480000-0x000001D6B748A000-memory.dmp

Filesize
40KB

Download
memory/2112-34-0x000001D6B77A0000-0x000001D6B77BE000-memory.dmp

Filesize
120KB

Download
memory/2112-94-0x00007FF8AC0D0000-0x00007FF8ACB91000-memory.dmp

Filesize
10.8MB

Download
memory/2112-89-0x00007FF8AC0D0000-0x00007FF8ACB91000-memory.dmp

Filesize
10.8MB

Download
memory/2112-2-0x00007FF8AC0D0000-0x00007FF8ACB91000-memory.dmp

Filesize
10.8MB

Download
memory/2112-32-0x000001D6B7720000-0x000001D6B7796000-memory.dmp

Filesize
472KB

Download
memory/2112-33-0x000001D6B77F0000-0x000001D6B7840000-memory.dmp

Filesize
320KB

Download
memory/2112-88-0x00007FF8AC0D3000-0x00007FF8AC0D5000-memory.dmp

Filesize
8KB

Download
memory/2112-1-0x000001D69CFA0000-0x000001D69CFDE000-memory.dmp

Filesize
248KB

Download
memory/2112-0-0x00007FF8AC0D3000-0x00007FF8AC0D5000-memory.dmp

Filesize
8KB

Download
memory/2112-72-0x000001D6B74B0000-0x000001D6B74C2000-memory.dmp

Filesize
72KB

Download
memory/3948-13-0x00007FF8AC0D0000-0x00007FF8ACB91000-memory.dmp

Filesize
10.8MB

Download
memory/3948-14-0x00007FF8AC0D0000-0x00007FF8ACB91000-memory.dmp

Filesize
10.8MB

Download
memory/3948-15-0x00007FF8AC0D0000-0x00007FF8ACB91000-memory.dmp

Filesize
10.8MB

Download
memory/3948-8-0x00000234BF2E0000-0x00000234BF302000-memory.dmp

Filesize
136KB

Download
memory/3948-18-0x00007FF8AC0D0000-0x00007FF8ACB91000-memory.dmp

Filesize
10.8MB

Download