umbral | be714037f784e78ea5e6698029d60d692be324de6530a02a8efd65c1a8a5fccc

Analysis

max time kernel
9s
max time network
11s
platform
windows11-21h2_x64
resource
win11-20240802-en
resource tags

arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
submitted
27-08-2024 18:00

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

xanyx-loader.exe
Size

349KB
MD5

ed847ded3be4f10c7ac9e83d9d1d2e83
SHA1

e871c6bfb85998c26b1dac25f477c401af71b6da
SHA256

be714037f784e78ea5e6698029d60d692be324de6530a02a8efd65c1a8a5fccc
SHA512

a6a3640fed6a3f4241ab2d365ef8fa08af9a5c40f95031cc350a21fbcf1385354c3b8d128e91d0c5cc349856ea7b7ff17a01615da218de9f4b836bccd48fbbf6
SSDEEP

6144:BloZMrlaVXiOBt/dKh98QtB5bxM8KDXqBVa07nIrvTuuuhJ8eFJLVp6kpKte/aVK:zoZzyOB5QB5VM8KDXqBVa07nIrwJ76kb

Score

10^/10

umbral credential_access execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral1/memory/2992-1-0x0000020051EE0000-0x0000020051F3E000-memory.dmp	family_umbral

Umbral
Umbral stealer is an opensource moduler stealer written in C#.
stealer umbral
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

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
4716	powershell.exe
4128	powershell.exe
1180	powershell.exe
1856	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	xanyx-loader.exe

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 2 IoCs

Web Service

T1102

flow	ioc
1	discord.com
6	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
3	ip-api.com

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
1596	wmic.exe

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
2992	xanyx-loader.exe
4716	powershell.exe
4716	powershell.exe
1856	powershell.exe
1856	powershell.exe
4128	powershell.exe
4128	powershell.exe
1564	powershell.exe
1564	powershell.exe
1180	powershell.exe
1180	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2992	xanyx-loader.exe
Token: SeIncreaseQuotaPrivilege	2776	wmic.exe
Token: SeSecurityPrivilege	2776	wmic.exe
Token: SeTakeOwnershipPrivilege	2776	wmic.exe
Token: SeLoadDriverPrivilege	2776	wmic.exe
Token: SeSystemProfilePrivilege	2776	wmic.exe
Token: SeSystemtimePrivilege	2776	wmic.exe
Token: SeProfSingleProcessPrivilege	2776	wmic.exe
Token: SeIncBasePriorityPrivilege	2776	wmic.exe
Token: SeCreatePagefilePrivilege	2776	wmic.exe
Token: SeBackupPrivilege	2776	wmic.exe
Token: SeRestorePrivilege	2776	wmic.exe
Token: SeShutdownPrivilege	2776	wmic.exe
Token: SeDebugPrivilege	2776	wmic.exe
Token: SeSystemEnvironmentPrivilege	2776	wmic.exe
Token: SeRemoteShutdownPrivilege	2776	wmic.exe
Token: SeUndockPrivilege	2776	wmic.exe
Token: SeManageVolumePrivilege	2776	wmic.exe
Token: 33	2776	wmic.exe
Token: 34	2776	wmic.exe
Token: 35	2776	wmic.exe
Token: 36	2776	wmic.exe
Token: SeIncreaseQuotaPrivilege	2776	wmic.exe
Token: SeSecurityPrivilege	2776	wmic.exe
Token: SeTakeOwnershipPrivilege	2776	wmic.exe
Token: SeLoadDriverPrivilege	2776	wmic.exe
Token: SeSystemProfilePrivilege	2776	wmic.exe
Token: SeSystemtimePrivilege	2776	wmic.exe
Token: SeProfSingleProcessPrivilege	2776	wmic.exe
Token: SeIncBasePriorityPrivilege	2776	wmic.exe
Token: SeCreatePagefilePrivilege	2776	wmic.exe
Token: SeBackupPrivilege	2776	wmic.exe
Token: SeRestorePrivilege	2776	wmic.exe
Token: SeShutdownPrivilege	2776	wmic.exe
Token: SeDebugPrivilege	2776	wmic.exe
Token: SeSystemEnvironmentPrivilege	2776	wmic.exe
Token: SeRemoteShutdownPrivilege	2776	wmic.exe
Token: SeUndockPrivilege	2776	wmic.exe
Token: SeManageVolumePrivilege	2776	wmic.exe
Token: 33	2776	wmic.exe
Token: 34	2776	wmic.exe
Token: 35	2776	wmic.exe
Token: 36	2776	wmic.exe
Token: SeDebugPrivilege	4716	powershell.exe
Token: SeDebugPrivilege	1856	powershell.exe
Token: SeDebugPrivilege	4128	powershell.exe
Token: SeDebugPrivilege	1564	powershell.exe
Token: SeIncreaseQuotaPrivilege	1768	wmic.exe
Token: SeSecurityPrivilege	1768	wmic.exe
Token: SeTakeOwnershipPrivilege	1768	wmic.exe
Token: SeLoadDriverPrivilege	1768	wmic.exe
Token: SeSystemProfilePrivilege	1768	wmic.exe
Token: SeSystemtimePrivilege	1768	wmic.exe
Token: SeProfSingleProcessPrivilege	1768	wmic.exe
Token: SeIncBasePriorityPrivilege	1768	wmic.exe
Token: SeCreatePagefilePrivilege	1768	wmic.exe
Token: SeBackupPrivilege	1768	wmic.exe
Token: SeRestorePrivilege	1768	wmic.exe
Token: SeShutdownPrivilege	1768	wmic.exe
Token: SeDebugPrivilege	1768	wmic.exe
Token: SeSystemEnvironmentPrivilege	1768	wmic.exe
Token: SeRemoteShutdownPrivilege	1768	wmic.exe
Token: SeUndockPrivilege	1768	wmic.exe
Token: SeManageVolumePrivilege	1768	wmic.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 2992 wrote to memory of 2776	2992	xanyx-loader.exe	82
PID 2992 wrote to memory of 2776	2992	xanyx-loader.exe	82
PID 2992 wrote to memory of 4716	2992	xanyx-loader.exe	85
PID 2992 wrote to memory of 4716	2992	xanyx-loader.exe	85
PID 2992 wrote to memory of 1856	2992	xanyx-loader.exe	88
PID 2992 wrote to memory of 1856	2992	xanyx-loader.exe	88
PID 2992 wrote to memory of 4128	2992	xanyx-loader.exe	90
PID 2992 wrote to memory of 4128	2992	xanyx-loader.exe	90
PID 2992 wrote to memory of 1564	2992	xanyx-loader.exe	92
PID 2992 wrote to memory of 1564	2992	xanyx-loader.exe	92
PID 2992 wrote to memory of 1768	2992	xanyx-loader.exe	94
PID 2992 wrote to memory of 1768	2992	xanyx-loader.exe	94
PID 2992 wrote to memory of 4300	2992	xanyx-loader.exe	96
PID 2992 wrote to memory of 4300	2992	xanyx-loader.exe	96
PID 2992 wrote to memory of 2340	2992	xanyx-loader.exe	98
PID 2992 wrote to memory of 2340	2992	xanyx-loader.exe	98
PID 2992 wrote to memory of 1180	2992	xanyx-loader.exe	100
PID 2992 wrote to memory of 1180	2992	xanyx-loader.exe	100
PID 2992 wrote to memory of 1596	2992	xanyx-loader.exe	102
PID 2992 wrote to memory of 1596	2992	xanyx-loader.exe	102

C:\Users\Admin\AppData\Local\Temp\xanyx-loader.exe
"C:\Users\Admin\AppData\Local\Temp\xanyx-loader.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2992
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2776
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\xanyx-loader.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4716
- 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:1856
- 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:4128
- 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:1564
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1768
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:4300
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:2340
- 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:1180
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:1596

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

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
437395ef86850fbff98c12dff89eb621

SHA1
9cec41e230fa9839de1e5c42b7dbc8b31df0d69c

SHA256
9c39f3e1ee674a289926fddddfc5549740c488686ec6513f53848a225c192ba6

SHA512
bc669893f5c97e80a62fc3d15383ed7c62ffc86bc986401735903019bb96a5f13e4d0f6356baa2021267503a4eb62681e58e28fcff435350e83aa425fa76cd64

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

Filesize
944B

MD5
c24caab1947646fcc49d6158d78a56f5

SHA1
aa2cd00401eb273991f2d6fdc739d473ff6e8319

SHA256
0696315ad3df3edd5426276c265bd13d8bd2a0d101548bcaedd82e2aebde655a

SHA512
35e1d214dfb4c7f078496e3e303aea152aa48f9db5b9aa188aeb82b541582ed77f60bfe8712836232b5aa31d3645edfc79b42c8f90e92e06778f21aa44971bff

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

Filesize
948B

MD5
02975ea0938bd97fc7230f785cd825a7

SHA1
192713c1f2912016fb8c2f1ed8eb8be4a883218d

SHA256
c330ecfbea7de88e537747edbb97192cbca39b8ec65e9dc6105d2a7a3e3d6859

SHA512
52e28301d3981c4eb78988018a7c56788e1ebbea586612f68016cad8317223a74851bb6a3f91f62d1e8c914c075c775810c90f5994ecadd73c635194aaaf5bf9

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

Filesize
1KB

MD5
7332074ae2b01262736b6fbd9e100dac

SHA1
22f992165065107cc9417fa4117240d84414a13c

SHA256
baea84fda6c1f13090b8cbd91c920848946f10ce155ef31a1df4cd453ee7e4aa

SHA512
4ae6f0e012c31ac1fc2ff4a8877ce2b4667c45b6e651de798318a39a2b6fd39a6f72dffa8b0b89b7a045a27d724d195656faa25a9fec79b22f37ddebb5d22da2

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

Filesize
1KB

MD5
17d36e2871735da5dc714f2989e25f06

SHA1
15fd7420c63c69cc5c543c1dd51bbd85a32802b5

SHA256
815e7a726cf6bb33f206036ed3e65db8cb93857375275aca95212d6e6ce143e6

SHA512
edf49d1499f99f7eade0ec9c9459bb82629059b1bec78dca5a7df465a78c9b4d026c4c0da7c7be590606dba96402d9cc2186b305f4f994dd85a3d291e3d2d5e8

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_jltxi420.jsr.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2992-66-0x0000020053C70000-0x0000020053C7A000-memory.dmp

Filesize
40KB

Download
memory/2992-32-0x0000020053C30000-0x0000020053C4E000-memory.dmp

Filesize
120KB

Download
memory/2992-86-0x00007FF985030000-0x00007FF985AF2000-memory.dmp

Filesize
10.8MB

Download
memory/2992-82-0x00007FF985030000-0x00007FF985AF2000-memory.dmp

Filesize
10.8MB

Download
memory/2992-2-0x00007FF985030000-0x00007FF985AF2000-memory.dmp

Filesize
10.8MB

Download
memory/2992-30-0x0000020053CD0000-0x0000020053D46000-memory.dmp

Filesize
472KB

Download
memory/2992-31-0x000002006C5D0000-0x000002006C620000-memory.dmp

Filesize
320KB

Download
memory/2992-81-0x00007FF985033000-0x00007FF985035000-memory.dmp

Filesize
8KB

Download
memory/2992-1-0x0000020051EE0000-0x0000020051F3E000-memory.dmp

Filesize
376KB

Download
memory/2992-0-0x00007FF985033000-0x00007FF985035000-memory.dmp

Filesize
8KB

Download
memory/2992-67-0x0000020053CA0000-0x0000020053CB2000-memory.dmp

Filesize
72KB

Download
memory/4716-13-0x00007FF985030000-0x00007FF985AF2000-memory.dmp

Filesize
10.8MB

Download
memory/4716-12-0x0000024DA8160000-0x0000024DA8182000-memory.dmp

Filesize
136KB

Download
memory/4716-14-0x00007FF985030000-0x00007FF985AF2000-memory.dmp

Filesize
10.8MB

Download
memory/4716-3-0x00007FF985030000-0x00007FF985AF2000-memory.dmp

Filesize
10.8MB

Download
memory/4716-17-0x00007FF985030000-0x00007FF985AF2000-memory.dmp

Filesize
10.8MB

Download