umbral | 9dd9444520d24834eb16856511f1fb78453bc0f1bcdcddf10d126ee3c62794fe

Analysis

max time kernel
148s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
25-01-2025 00:08

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General

Target

XenoDownload.exe
Size

229KB
MD5

d169733718ec2e0628998cd2ff4129bd
SHA1

a0432e4599294b23f0718d022e6ba9fb8db64848
SHA256

9dd9444520d24834eb16856511f1fb78453bc0f1bcdcddf10d126ee3c62794fe
SHA512

511921b3d11f0103d135185877a064dd8dc3d67b8943fdae5db8626081823c2fc8bc4c992b0100dd2402624edfe07e894cedd60a7e62111da342e81578055a7b
SSDEEP

6144:tloZM+rIkd8g+EtXHkv/iD4SNd4W0b3clNImHHmCzb8e1miMi:voZtL+EP8SNd4W0b3clNImHHmwH

Score

10^/10

umbral discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral2/memory/3304-1-0x0000020F51710000-0x0000020F51750000-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
2776	powershell.exe
1408	powershell.exe
512	powershell.exe
3444	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	XenoDownload.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
34	discord.com
35	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
25	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
1920	cmd.exe
3184	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
4856	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3184	PING.EXE

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
3304	XenoDownload.exe
2776	powershell.exe
2776	powershell.exe
1408	powershell.exe
1408	powershell.exe
512	powershell.exe
512	powershell.exe
3064	powershell.exe
3064	powershell.exe
3444	powershell.exe
3444	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3304	XenoDownload.exe
Token: SeIncreaseQuotaPrivilege	3712	wmic.exe
Token: SeSecurityPrivilege	3712	wmic.exe
Token: SeTakeOwnershipPrivilege	3712	wmic.exe
Token: SeLoadDriverPrivilege	3712	wmic.exe
Token: SeSystemProfilePrivilege	3712	wmic.exe
Token: SeSystemtimePrivilege	3712	wmic.exe
Token: SeProfSingleProcessPrivilege	3712	wmic.exe
Token: SeIncBasePriorityPrivilege	3712	wmic.exe
Token: SeCreatePagefilePrivilege	3712	wmic.exe
Token: SeBackupPrivilege	3712	wmic.exe
Token: SeRestorePrivilege	3712	wmic.exe
Token: SeShutdownPrivilege	3712	wmic.exe
Token: SeDebugPrivilege	3712	wmic.exe
Token: SeSystemEnvironmentPrivilege	3712	wmic.exe
Token: SeRemoteShutdownPrivilege	3712	wmic.exe
Token: SeUndockPrivilege	3712	wmic.exe
Token: SeManageVolumePrivilege	3712	wmic.exe
Token: 33	3712	wmic.exe
Token: 34	3712	wmic.exe
Token: 35	3712	wmic.exe
Token: 36	3712	wmic.exe
Token: SeIncreaseQuotaPrivilege	3712	wmic.exe
Token: SeSecurityPrivilege	3712	wmic.exe
Token: SeTakeOwnershipPrivilege	3712	wmic.exe
Token: SeLoadDriverPrivilege	3712	wmic.exe
Token: SeSystemProfilePrivilege	3712	wmic.exe
Token: SeSystemtimePrivilege	3712	wmic.exe
Token: SeProfSingleProcessPrivilege	3712	wmic.exe
Token: SeIncBasePriorityPrivilege	3712	wmic.exe
Token: SeCreatePagefilePrivilege	3712	wmic.exe
Token: SeBackupPrivilege	3712	wmic.exe
Token: SeRestorePrivilege	3712	wmic.exe
Token: SeShutdownPrivilege	3712	wmic.exe
Token: SeDebugPrivilege	3712	wmic.exe
Token: SeSystemEnvironmentPrivilege	3712	wmic.exe
Token: SeRemoteShutdownPrivilege	3712	wmic.exe
Token: SeUndockPrivilege	3712	wmic.exe
Token: SeManageVolumePrivilege	3712	wmic.exe
Token: 33	3712	wmic.exe
Token: 34	3712	wmic.exe
Token: 35	3712	wmic.exe
Token: 36	3712	wmic.exe
Token: SeDebugPrivilege	2776	powershell.exe
Token: SeDebugPrivilege	1408	powershell.exe
Token: SeDebugPrivilege	512	powershell.exe
Token: SeDebugPrivilege	3064	powershell.exe
Token: SeIncreaseQuotaPrivilege	1504	wmic.exe
Token: SeSecurityPrivilege	1504	wmic.exe
Token: SeTakeOwnershipPrivilege	1504	wmic.exe
Token: SeLoadDriverPrivilege	1504	wmic.exe
Token: SeSystemProfilePrivilege	1504	wmic.exe
Token: SeSystemtimePrivilege	1504	wmic.exe
Token: SeProfSingleProcessPrivilege	1504	wmic.exe
Token: SeIncBasePriorityPrivilege	1504	wmic.exe
Token: SeCreatePagefilePrivilege	1504	wmic.exe
Token: SeBackupPrivilege	1504	wmic.exe
Token: SeRestorePrivilege	1504	wmic.exe
Token: SeShutdownPrivilege	1504	wmic.exe
Token: SeDebugPrivilege	1504	wmic.exe
Token: SeSystemEnvironmentPrivilege	1504	wmic.exe
Token: SeRemoteShutdownPrivilege	1504	wmic.exe
Token: SeUndockPrivilege	1504	wmic.exe
Token: SeManageVolumePrivilege	1504	wmic.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 3304 wrote to memory of 3712	3304	XenoDownload.exe	88
PID 3304 wrote to memory of 3712	3304	XenoDownload.exe	88
PID 3304 wrote to memory of 988	3304	XenoDownload.exe	90
PID 3304 wrote to memory of 988	3304	XenoDownload.exe	90
PID 3304 wrote to memory of 2776	3304	XenoDownload.exe	92
PID 3304 wrote to memory of 2776	3304	XenoDownload.exe	92
PID 3304 wrote to memory of 1408	3304	XenoDownload.exe	94
PID 3304 wrote to memory of 1408	3304	XenoDownload.exe	94
PID 3304 wrote to memory of 512	3304	XenoDownload.exe	96
PID 3304 wrote to memory of 512	3304	XenoDownload.exe	96
PID 3304 wrote to memory of 3064	3304	XenoDownload.exe	98
PID 3304 wrote to memory of 3064	3304	XenoDownload.exe	98
PID 3304 wrote to memory of 1504	3304	XenoDownload.exe	100
PID 3304 wrote to memory of 1504	3304	XenoDownload.exe	100
PID 3304 wrote to memory of 2700	3304	XenoDownload.exe	102
PID 3304 wrote to memory of 2700	3304	XenoDownload.exe	102
PID 3304 wrote to memory of 1976	3304	XenoDownload.exe	104
PID 3304 wrote to memory of 1976	3304	XenoDownload.exe	104
PID 3304 wrote to memory of 3444	3304	XenoDownload.exe	106
PID 3304 wrote to memory of 3444	3304	XenoDownload.exe	106
PID 3304 wrote to memory of 4856	3304	XenoDownload.exe	108
PID 3304 wrote to memory of 4856	3304	XenoDownload.exe	108
PID 3304 wrote to memory of 1920	3304	XenoDownload.exe	115
PID 3304 wrote to memory of 1920	3304	XenoDownload.exe	115
PID 1920 wrote to memory of 3184	1920	cmd.exe	117
PID 1920 wrote to memory of 3184	1920	cmd.exe	117

Views/modifies file attributes 1 TTPs 1 IoCs

defense_evasion

Hidden Files and Directories

T1564.001

pid	Process
988	attrib.exe

C:\Users\Admin\AppData\Local\Temp\XenoDownload.exe
"C:\Users\Admin\AppData\Local\Temp\XenoDownload.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3304
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:3712
- C:\Windows\SYSTEM32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\XenoDownload.exe"
  2⤵
  - Views/modifies file attributes
  PID:988
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\XenoDownload.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2776
- 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:1408
- 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:512
- 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:3064
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1504
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:2700
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:1976
- 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:3444
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:4856
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\XenoDownload.exe" && pause
  2⤵
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:1920
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:3184

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

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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
5b69bd35ab08fc78698c93973082ae81

SHA1
3ab5234af7da31fcef8d7b3e290cab2a9fe0974e

SHA256
6c3928555b8c070ac1ba710aeea94a6203342418a63fabe9f84ba88c4acdc152

SHA512
a6cb7672f5e1d5d3e9955e600e122df8000988cfa7d44cd56d7f585d9344beb4709248664e03d471e651df8d8da8042d7eb7bdb24342b1788a3a44d7baaa8662

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

Filesize
1KB

MD5
276798eeb29a49dc6e199768bc9c2e71

SHA1
5fdc8ccb897ac2df7476fbb07517aca5b7a6205b

SHA256
cd0a1056e8f1b6cb5cb328532239d802f4e2aa8f8fcdc0fcb487684bd68e0dcc

SHA512
0d34fce64bbefc57d64fa6e03ca886952263d5f24df9c1c4cce6a1e8f5a47a9a21e9820f8d38caa7f7b43a52336ce00b738ea18419aaa7c788b72e04ce19e4f2

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

Filesize
1KB

MD5
0592cf32ae18635f6221b5fb45c46920

SHA1
46706ed86efa030789d08c365f8b01e27dd16158

SHA256
11dac2c1e29286a804deb4798a128ec6ede3834158c240ca7c18b27f1000d29c

SHA512
eadcaa454b880ee57b72eba7e5164a2f9895d2fe587a22a767e0871ed30e28cc3080886e169c99d77c3920b17300c3cc235ef33646ad1c1b38d71d84a3172765

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_3sc3vxt4.i13.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2776-4-0x00007FFEAFD00000-0x00007FFEB07C1000-memory.dmp

Filesize
10.8MB

Download
memory/2776-5-0x00007FFEAFD00000-0x00007FFEB07C1000-memory.dmp

Filesize
10.8MB

Download
memory/2776-6-0x000001EBB2FA0000-0x000001EBB2FC2000-memory.dmp

Filesize
136KB

Download
memory/2776-18-0x00007FFEAFD00000-0x00007FFEB07C1000-memory.dmp

Filesize
10.8MB

Download
memory/3304-34-0x0000020F6BEC0000-0x0000020F6BF10000-memory.dmp

Filesize
320KB

Download
memory/3304-33-0x0000020F6BE40000-0x0000020F6BEB6000-memory.dmp

Filesize
472KB

Download
memory/3304-2-0x00007FFEAFD00000-0x00007FFEB07C1000-memory.dmp

Filesize
10.8MB

Download
memory/3304-35-0x0000020F6BE20000-0x0000020F6BE3E000-memory.dmp

Filesize
120KB

Download
memory/3304-1-0x0000020F51710000-0x0000020F51750000-memory.dmp

Filesize
256KB

Download
memory/3304-0-0x00007FFEAFD03000-0x00007FFEAFD05000-memory.dmp

Filesize
8KB

Download
memory/3304-72-0x0000020F6BF20000-0x0000020F6BF2A000-memory.dmp

Filesize
40KB

Download
memory/3304-73-0x0000020F6CD20000-0x0000020F6CD32000-memory.dmp

Filesize
72KB

Download
memory/3304-3-0x00007FFEAFD00000-0x00007FFEB07C1000-memory.dmp

Filesize
10.8MB

Download
memory/3304-93-0x00007FFEAFD00000-0x00007FFEB07C1000-memory.dmp

Filesize
10.8MB

Download