umbral | ee31a42c43a6b47c76535cca780ff3282bea54012105d5c8f1e008ee9d97da82

Analysis

max time kernel
14s
max time network
19s
platform
windows7_x64
resource
win7-20231023-en
resource tags

arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system
submitted
04-11-2023 10:26

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General

Target

Umbral Builder 2.0.exe
Size

296KB
MD5

0c1911851b28c7c2c475ec85c6762b3d
SHA1

1b62107460f6225073fa3d69d85530dd6013ca69
SHA256

ee31a42c43a6b47c76535cca780ff3282bea54012105d5c8f1e008ee9d97da82
SHA512

3da12248d95f04ed389faa3bdea994fef22bda6c4c821520cc580eca81b089cf9bcfea01757f12a30e495bc51716b7cf72ac2d7ae22352dc771bdf8a0fb6b9a0
SSDEEP

6144:dloZMCrIkd8g+EtXHkv/iD4dokdrR/k4XcG/BcoNkbb8e1msOi:/oZZL+EP8dokdrR/k4XcG/BcoNClj

Score

10^/10

umbral spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral1/memory/2764-0-0x0000000000EA0000-0x0000000000EF0000-memory.dmp	family_umbral

Umbral
Umbral stealer is an opensource moduler stealer written in C#.
stealer umbral
Reads user/profile data of web browsers 2 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
Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

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

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
1620	wmic.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2988	powershell.exe
2204	powershell.exe
2488	powershell.exe
556	powershell.exe
1956	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2764	Umbral Builder 2.0.exe
Token: SeDebugPrivilege	2988	powershell.exe
Token: SeDebugPrivilege	2204	powershell.exe
Token: SeDebugPrivilege	2488	powershell.exe
Token: SeDebugPrivilege	556	powershell.exe
Token: SeIncreaseQuotaPrivilege	2780	wmic.exe
Token: SeSecurityPrivilege	2780	wmic.exe
Token: SeTakeOwnershipPrivilege	2780	wmic.exe
Token: SeLoadDriverPrivilege	2780	wmic.exe
Token: SeSystemProfilePrivilege	2780	wmic.exe
Token: SeSystemtimePrivilege	2780	wmic.exe
Token: SeProfSingleProcessPrivilege	2780	wmic.exe
Token: SeIncBasePriorityPrivilege	2780	wmic.exe
Token: SeCreatePagefilePrivilege	2780	wmic.exe
Token: SeBackupPrivilege	2780	wmic.exe
Token: SeRestorePrivilege	2780	wmic.exe
Token: SeShutdownPrivilege	2780	wmic.exe
Token: SeDebugPrivilege	2780	wmic.exe
Token: SeSystemEnvironmentPrivilege	2780	wmic.exe
Token: SeRemoteShutdownPrivilege	2780	wmic.exe
Token: SeUndockPrivilege	2780	wmic.exe
Token: SeManageVolumePrivilege	2780	wmic.exe
Token: 33	2780	wmic.exe
Token: 34	2780	wmic.exe
Token: 35	2780	wmic.exe
Token: SeIncreaseQuotaPrivilege	2780	wmic.exe
Token: SeSecurityPrivilege	2780	wmic.exe
Token: SeTakeOwnershipPrivilege	2780	wmic.exe
Token: SeLoadDriverPrivilege	2780	wmic.exe
Token: SeSystemProfilePrivilege	2780	wmic.exe
Token: SeSystemtimePrivilege	2780	wmic.exe
Token: SeProfSingleProcessPrivilege	2780	wmic.exe
Token: SeIncBasePriorityPrivilege	2780	wmic.exe
Token: SeCreatePagefilePrivilege	2780	wmic.exe
Token: SeBackupPrivilege	2780	wmic.exe
Token: SeRestorePrivilege	2780	wmic.exe
Token: SeShutdownPrivilege	2780	wmic.exe
Token: SeDebugPrivilege	2780	wmic.exe
Token: SeSystemEnvironmentPrivilege	2780	wmic.exe
Token: SeRemoteShutdownPrivilege	2780	wmic.exe
Token: SeUndockPrivilege	2780	wmic.exe
Token: SeManageVolumePrivilege	2780	wmic.exe
Token: 33	2780	wmic.exe
Token: 34	2780	wmic.exe
Token: 35	2780	wmic.exe
Token: SeIncreaseQuotaPrivilege	2224	wmic.exe
Token: SeSecurityPrivilege	2224	wmic.exe
Token: SeTakeOwnershipPrivilege	2224	wmic.exe
Token: SeLoadDriverPrivilege	2224	wmic.exe
Token: SeSystemProfilePrivilege	2224	wmic.exe
Token: SeSystemtimePrivilege	2224	wmic.exe
Token: SeProfSingleProcessPrivilege	2224	wmic.exe
Token: SeIncBasePriorityPrivilege	2224	wmic.exe
Token: SeCreatePagefilePrivilege	2224	wmic.exe
Token: SeBackupPrivilege	2224	wmic.exe
Token: SeRestorePrivilege	2224	wmic.exe
Token: SeShutdownPrivilege	2224	wmic.exe
Token: SeDebugPrivilege	2224	wmic.exe
Token: SeSystemEnvironmentPrivilege	2224	wmic.exe
Token: SeRemoteShutdownPrivilege	2224	wmic.exe
Token: SeUndockPrivilege	2224	wmic.exe
Token: SeManageVolumePrivilege	2224	wmic.exe
Token: 33	2224	wmic.exe
Token: 34	2224	wmic.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 2764 wrote to memory of 2988	2764	Umbral Builder 2.0.exe	28
PID 2764 wrote to memory of 2988	2764	Umbral Builder 2.0.exe	28
PID 2764 wrote to memory of 2988	2764	Umbral Builder 2.0.exe	28
PID 2764 wrote to memory of 2204	2764	Umbral Builder 2.0.exe	31
PID 2764 wrote to memory of 2204	2764	Umbral Builder 2.0.exe	31
PID 2764 wrote to memory of 2204	2764	Umbral Builder 2.0.exe	31
PID 2764 wrote to memory of 2488	2764	Umbral Builder 2.0.exe	32
PID 2764 wrote to memory of 2488	2764	Umbral Builder 2.0.exe	32
PID 2764 wrote to memory of 2488	2764	Umbral Builder 2.0.exe	32
PID 2764 wrote to memory of 556	2764	Umbral Builder 2.0.exe	35
PID 2764 wrote to memory of 556	2764	Umbral Builder 2.0.exe	35
PID 2764 wrote to memory of 556	2764	Umbral Builder 2.0.exe	35
PID 2764 wrote to memory of 2780	2764	Umbral Builder 2.0.exe	36
PID 2764 wrote to memory of 2780	2764	Umbral Builder 2.0.exe	36
PID 2764 wrote to memory of 2780	2764	Umbral Builder 2.0.exe	36
PID 2764 wrote to memory of 2224	2764	Umbral Builder 2.0.exe	39
PID 2764 wrote to memory of 2224	2764	Umbral Builder 2.0.exe	39
PID 2764 wrote to memory of 2224	2764	Umbral Builder 2.0.exe	39
PID 2764 wrote to memory of 2404	2764	Umbral Builder 2.0.exe	41
PID 2764 wrote to memory of 2404	2764	Umbral Builder 2.0.exe	41
PID 2764 wrote to memory of 2404	2764	Umbral Builder 2.0.exe	41
PID 2764 wrote to memory of 1956	2764	Umbral Builder 2.0.exe	44
PID 2764 wrote to memory of 1956	2764	Umbral Builder 2.0.exe	44
PID 2764 wrote to memory of 1956	2764	Umbral Builder 2.0.exe	44
PID 2764 wrote to memory of 1620	2764	Umbral Builder 2.0.exe	46
PID 2764 wrote to memory of 1620	2764	Umbral Builder 2.0.exe	46
PID 2764 wrote to memory of 1620	2764	Umbral Builder 2.0.exe	46

C:\Users\Admin\AppData\Local\Temp\Umbral Builder 2.0.exe
"C:\Users\Admin\AppData\Local\Temp\Umbral Builder 2.0.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2764
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\Umbral Builder 2.0.exe'
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2988
- 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⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2204
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Get-ItemPropertyValue -Path HKCU:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2488
- 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:556
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2780
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2224
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:2404
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Get-ItemPropertyValue -Path 'HKLM:System\CurrentControlSet\Control\Session Manager\Environment' -Name PROCESSOR_IDENTIFIER
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:1956
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:1620

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

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

Filesize
7KB

MD5
de6e76c2d9e9a4c860b5ac3060e48ed8

SHA1
6d333b4c1f970146d9a3ea6956979d4f0281e6db

SHA256
03b38bb9f3f1fc71701c95a04d59c4ebe42349f964c4d59c5008fb890b4def86

SHA512
df0eb1aab9170b10515bb56b6525c90e9db0a804fa40233227f1836467e2184f34f0b20edba5481ab2db4a53712844239291fe665eceb6c885fbaaeb76b71b11

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

Filesize
7KB

MD5
de6e76c2d9e9a4c860b5ac3060e48ed8

SHA1
6d333b4c1f970146d9a3ea6956979d4f0281e6db

SHA256
03b38bb9f3f1fc71701c95a04d59c4ebe42349f964c4d59c5008fb890b4def86

SHA512
df0eb1aab9170b10515bb56b6525c90e9db0a804fa40233227f1836467e2184f34f0b20edba5481ab2db4a53712844239291fe665eceb6c885fbaaeb76b71b11

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

Filesize
7KB

MD5
de6e76c2d9e9a4c860b5ac3060e48ed8

SHA1
6d333b4c1f970146d9a3ea6956979d4f0281e6db

SHA256
03b38bb9f3f1fc71701c95a04d59c4ebe42349f964c4d59c5008fb890b4def86

SHA512
df0eb1aab9170b10515bb56b6525c90e9db0a804fa40233227f1836467e2184f34f0b20edba5481ab2db4a53712844239291fe665eceb6c885fbaaeb76b71b11

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

Filesize
7KB

MD5
de6e76c2d9e9a4c860b5ac3060e48ed8

SHA1
6d333b4c1f970146d9a3ea6956979d4f0281e6db

SHA256
03b38bb9f3f1fc71701c95a04d59c4ebe42349f964c4d59c5008fb890b4def86

SHA512
df0eb1aab9170b10515bb56b6525c90e9db0a804fa40233227f1836467e2184f34f0b20edba5481ab2db4a53712844239291fe665eceb6c885fbaaeb76b71b11

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\DKV4OB24Q5TJ803IH9CF.temp

Filesize
7KB

MD5
de6e76c2d9e9a4c860b5ac3060e48ed8

SHA1
6d333b4c1f970146d9a3ea6956979d4f0281e6db

SHA256
03b38bb9f3f1fc71701c95a04d59c4ebe42349f964c4d59c5008fb890b4def86

SHA512
df0eb1aab9170b10515bb56b6525c90e9db0a804fa40233227f1836467e2184f34f0b20edba5481ab2db4a53712844239291fe665eceb6c885fbaaeb76b71b11

Download Submit
memory/556-57-0x00000000029F0000-0x0000000002A70000-memory.dmp

Filesize
512KB

Download
memory/556-54-0x00000000029F0000-0x0000000002A70000-memory.dmp

Filesize
512KB

Download
memory/556-59-0x000007FEECCB0000-0x000007FEED64D000-memory.dmp

Filesize
9.6MB

Download
memory/556-55-0x000007FEECCB0000-0x000007FEED64D000-memory.dmp

Filesize
9.6MB

Download
memory/556-58-0x00000000029F0000-0x0000000002A70000-memory.dmp

Filesize
512KB

Download
memory/556-53-0x000007FEECCB0000-0x000007FEED64D000-memory.dmp

Filesize
9.6MB

Download
memory/1956-74-0x00000000029F0000-0x0000000002A70000-memory.dmp

Filesize
512KB

Download
memory/1956-72-0x00000000029F0000-0x0000000002A70000-memory.dmp

Filesize
512KB

Download
memory/1956-71-0x00000000029F0000-0x0000000002A70000-memory.dmp

Filesize
512KB

Download
memory/1956-73-0x00000000029F0000-0x0000000002A70000-memory.dmp

Filesize
512KB

Download
memory/1956-75-0x000007FEED650000-0x000007FEEDFED000-memory.dmp

Filesize
9.6MB

Download
memory/1956-69-0x000007FEED650000-0x000007FEEDFED000-memory.dmp

Filesize
9.6MB

Download
memory/1956-68-0x0000000002410000-0x0000000002418000-memory.dmp

Filesize
32KB

Download
memory/1956-70-0x000007FEED650000-0x000007FEEDFED000-memory.dmp

Filesize
9.6MB

Download
memory/2204-27-0x00000000029B0000-0x0000000002A30000-memory.dmp

Filesize
512KB

Download
memory/2204-21-0x0000000001ED0000-0x0000000001ED8000-memory.dmp

Filesize
32KB

Download
memory/2204-28-0x000007FEECCB0000-0x000007FEED64D000-memory.dmp

Filesize
9.6MB

Download
memory/2204-25-0x00000000029B0000-0x0000000002A30000-memory.dmp

Filesize
512KB

Download
memory/2204-26-0x00000000029B0000-0x0000000002A30000-memory.dmp

Filesize
512KB

Download
memory/2204-20-0x000000001B300000-0x000000001B5E2000-memory.dmp

Filesize
2.9MB

Download
memory/2204-22-0x000007FEECCB0000-0x000007FEED64D000-memory.dmp

Filesize
9.6MB

Download
memory/2204-23-0x00000000029B0000-0x0000000002A30000-memory.dmp

Filesize
512KB

Download
memory/2204-24-0x000007FEECCB0000-0x000007FEED64D000-memory.dmp

Filesize
9.6MB

Download
memory/2488-40-0x000007FEED650000-0x000007FEEDFED000-memory.dmp

Filesize
9.6MB

Download
memory/2488-45-0x0000000002680000-0x0000000002700000-memory.dmp

Filesize
512KB

Download
memory/2488-47-0x000007FEED650000-0x000007FEEDFED000-memory.dmp

Filesize
9.6MB

Download
memory/2488-42-0x0000000002680000-0x0000000002700000-memory.dmp

Filesize
512KB

Download
memory/2488-46-0x0000000002680000-0x0000000002700000-memory.dmp

Filesize
512KB

Download
memory/2488-44-0x000007FEED650000-0x000007FEEDFED000-memory.dmp

Filesize
9.6MB

Download
memory/2488-43-0x0000000002680000-0x0000000002700000-memory.dmp

Filesize
512KB

Download
memory/2764-0-0x0000000000EA0000-0x0000000000EF0000-memory.dmp

Filesize
320KB

Download
memory/2764-41-0x000007FEF5840000-0x000007FEF622C000-memory.dmp

Filesize
9.9MB

Download
memory/2764-56-0x0000000000410000-0x0000000000490000-memory.dmp

Filesize
512KB

Download
memory/2764-2-0x0000000000410000-0x0000000000490000-memory.dmp

Filesize
512KB

Download
memory/2764-1-0x000007FEF5840000-0x000007FEF622C000-memory.dmp

Filesize
9.9MB

Download
memory/2764-79-0x000007FEF5840000-0x000007FEF622C000-memory.dmp

Filesize
9.9MB

Download
memory/2988-7-0x000000001B2E0000-0x000000001B5C2000-memory.dmp

Filesize
2.9MB

Download
memory/2988-10-0x000007FEED650000-0x000007FEEDFED000-memory.dmp

Filesize
9.6MB

Download
memory/2988-8-0x0000000001C40000-0x0000000001C48000-memory.dmp

Filesize
32KB

Download
memory/2988-9-0x000007FEED650000-0x000007FEEDFED000-memory.dmp

Filesize
9.6MB

Download
memory/2988-14-0x000007FEED650000-0x000007FEEDFED000-memory.dmp

Filesize
9.6MB

Download
memory/2988-13-0x00000000025A0000-0x0000000002620000-memory.dmp

Filesize
512KB

Download
memory/2988-11-0x00000000025A0000-0x0000000002620000-memory.dmp

Filesize
512KB

Download
memory/2988-12-0x00000000025A0000-0x0000000002620000-memory.dmp

Filesize
512KB

Download