umbral | 9dd9444520d24834eb16856511f1fb78453bc0f1bcdcddf10d126ee3c62794fe

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
25-01-2025 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
behavioral1/memory/2984-1-0x0000000000280000-0x00000000002C0000-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

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
1396	powershell.exe
1244	powershell.exe
2504	powershell.exe
1588	powershell.exe

Drops file in Drivers directory 1 IoCs

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

Deletes itself 1 IoCs

pid	Process
2440	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
10	discord.com
11	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
7	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
2440	cmd.exe
1668	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
1644	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1668	PING.EXE

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2984	XenoDownload.exe
1588	powershell.exe
1396	powershell.exe
1244	powershell.exe
2324	powershell.exe
2504	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2984	XenoDownload.exe
Token: SeIncreaseQuotaPrivilege	2604	wmic.exe
Token: SeSecurityPrivilege	2604	wmic.exe
Token: SeTakeOwnershipPrivilege	2604	wmic.exe
Token: SeLoadDriverPrivilege	2604	wmic.exe
Token: SeSystemProfilePrivilege	2604	wmic.exe
Token: SeSystemtimePrivilege	2604	wmic.exe
Token: SeProfSingleProcessPrivilege	2604	wmic.exe
Token: SeIncBasePriorityPrivilege	2604	wmic.exe
Token: SeCreatePagefilePrivilege	2604	wmic.exe
Token: SeBackupPrivilege	2604	wmic.exe
Token: SeRestorePrivilege	2604	wmic.exe
Token: SeShutdownPrivilege	2604	wmic.exe
Token: SeDebugPrivilege	2604	wmic.exe
Token: SeSystemEnvironmentPrivilege	2604	wmic.exe
Token: SeRemoteShutdownPrivilege	2604	wmic.exe
Token: SeUndockPrivilege	2604	wmic.exe
Token: SeManageVolumePrivilege	2604	wmic.exe
Token: 33	2604	wmic.exe
Token: 34	2604	wmic.exe
Token: 35	2604	wmic.exe
Token: SeIncreaseQuotaPrivilege	2604	wmic.exe
Token: SeSecurityPrivilege	2604	wmic.exe
Token: SeTakeOwnershipPrivilege	2604	wmic.exe
Token: SeLoadDriverPrivilege	2604	wmic.exe
Token: SeSystemProfilePrivilege	2604	wmic.exe
Token: SeSystemtimePrivilege	2604	wmic.exe
Token: SeProfSingleProcessPrivilege	2604	wmic.exe
Token: SeIncBasePriorityPrivilege	2604	wmic.exe
Token: SeCreatePagefilePrivilege	2604	wmic.exe
Token: SeBackupPrivilege	2604	wmic.exe
Token: SeRestorePrivilege	2604	wmic.exe
Token: SeShutdownPrivilege	2604	wmic.exe
Token: SeDebugPrivilege	2604	wmic.exe
Token: SeSystemEnvironmentPrivilege	2604	wmic.exe
Token: SeRemoteShutdownPrivilege	2604	wmic.exe
Token: SeUndockPrivilege	2604	wmic.exe
Token: SeManageVolumePrivilege	2604	wmic.exe
Token: 33	2604	wmic.exe
Token: 34	2604	wmic.exe
Token: 35	2604	wmic.exe
Token: SeDebugPrivilege	1588	powershell.exe
Token: SeDebugPrivilege	1396	powershell.exe
Token: SeDebugPrivilege	1244	powershell.exe
Token: SeDebugPrivilege	2324	powershell.exe
Token: SeIncreaseQuotaPrivilege	756	wmic.exe
Token: SeSecurityPrivilege	756	wmic.exe
Token: SeTakeOwnershipPrivilege	756	wmic.exe
Token: SeLoadDriverPrivilege	756	wmic.exe
Token: SeSystemProfilePrivilege	756	wmic.exe
Token: SeSystemtimePrivilege	756	wmic.exe
Token: SeProfSingleProcessPrivilege	756	wmic.exe
Token: SeIncBasePriorityPrivilege	756	wmic.exe
Token: SeCreatePagefilePrivilege	756	wmic.exe
Token: SeBackupPrivilege	756	wmic.exe
Token: SeRestorePrivilege	756	wmic.exe
Token: SeShutdownPrivilege	756	wmic.exe
Token: SeDebugPrivilege	756	wmic.exe
Token: SeSystemEnvironmentPrivilege	756	wmic.exe
Token: SeRemoteShutdownPrivilege	756	wmic.exe
Token: SeUndockPrivilege	756	wmic.exe
Token: SeManageVolumePrivilege	756	wmic.exe
Token: 33	756	wmic.exe
Token: 34	756	wmic.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 2984 wrote to memory of 2604	2984	XenoDownload.exe	31
PID 2984 wrote to memory of 2604	2984	XenoDownload.exe	31
PID 2984 wrote to memory of 2604	2984	XenoDownload.exe	31
PID 2984 wrote to memory of 1648	2984	XenoDownload.exe	34
PID 2984 wrote to memory of 1648	2984	XenoDownload.exe	34
PID 2984 wrote to memory of 1648	2984	XenoDownload.exe	34
PID 2984 wrote to memory of 1588	2984	XenoDownload.exe	36
PID 2984 wrote to memory of 1588	2984	XenoDownload.exe	36
PID 2984 wrote to memory of 1588	2984	XenoDownload.exe	36
PID 2984 wrote to memory of 1396	2984	XenoDownload.exe	38
PID 2984 wrote to memory of 1396	2984	XenoDownload.exe	38
PID 2984 wrote to memory of 1396	2984	XenoDownload.exe	38
PID 2984 wrote to memory of 1244	2984	XenoDownload.exe	40
PID 2984 wrote to memory of 1244	2984	XenoDownload.exe	40
PID 2984 wrote to memory of 1244	2984	XenoDownload.exe	40
PID 2984 wrote to memory of 2324	2984	XenoDownload.exe	42
PID 2984 wrote to memory of 2324	2984	XenoDownload.exe	42
PID 2984 wrote to memory of 2324	2984	XenoDownload.exe	42
PID 2984 wrote to memory of 756	2984	XenoDownload.exe	44
PID 2984 wrote to memory of 756	2984	XenoDownload.exe	44
PID 2984 wrote to memory of 756	2984	XenoDownload.exe	44
PID 2984 wrote to memory of 3032	2984	XenoDownload.exe	46
PID 2984 wrote to memory of 3032	2984	XenoDownload.exe	46
PID 2984 wrote to memory of 3032	2984	XenoDownload.exe	46
PID 2984 wrote to memory of 1280	2984	XenoDownload.exe	48
PID 2984 wrote to memory of 1280	2984	XenoDownload.exe	48
PID 2984 wrote to memory of 1280	2984	XenoDownload.exe	48
PID 2984 wrote to memory of 2504	2984	XenoDownload.exe	50
PID 2984 wrote to memory of 2504	2984	XenoDownload.exe	50
PID 2984 wrote to memory of 2504	2984	XenoDownload.exe	50
PID 2984 wrote to memory of 1644	2984	XenoDownload.exe	52
PID 2984 wrote to memory of 1644	2984	XenoDownload.exe	52
PID 2984 wrote to memory of 1644	2984	XenoDownload.exe	52
PID 2984 wrote to memory of 2440	2984	XenoDownload.exe	54
PID 2984 wrote to memory of 2440	2984	XenoDownload.exe	54
PID 2984 wrote to memory of 2440	2984	XenoDownload.exe	54
PID 2440 wrote to memory of 1668	2440	cmd.exe	56
PID 2440 wrote to memory of 1668	2440	cmd.exe	56
PID 2440 wrote to memory of 1668	2440	cmd.exe	56

Views/modifies file attributes 1 TTPs 1 IoCs

defense_evasion

Hidden Files and Directories

T1564.001

pid	Process
1648	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:2984
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2604
- C:\Windows\system32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\XenoDownload.exe"
  2⤵
  - Views/modifies file attributes
  PID:1648
- 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:1588
- 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:1396
- 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:1244
- 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:2324
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:756
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:3032
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:1280
- 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:2504
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:1644
- C:\Windows\system32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\XenoDownload.exe" && pause
  2⤵
  - Deletes itself
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2440
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:1668

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

Filesize
7KB

MD5
52db0677be3f4b581d21f439266b505a

SHA1
32c678967aa43f041e1554ff897a33e406433fee

SHA256
cc7b7155352461bd12e1e9b1a41844f8354c3e6a87ebd51ac8e09d422e1ef61d

SHA512
bfa0129554f3d82013f46255069f29b77d565404eca45060e0138786b838239198963a86cddfe72a243275a962b53ef59d1bc42b427a0ec7682780ab8432d49c

Download Submit
memory/1396-17-0x0000000001EF0000-0x0000000001EF8000-memory.dmp

Filesize
32KB

Download
memory/1396-16-0x000000001B6C0000-0x000000001B9A2000-memory.dmp

Filesize
2.9MB

Download
memory/1588-10-0x00000000027E0000-0x00000000027E8000-memory.dmp

Filesize
32KB

Download
memory/1588-9-0x000000001B6A0000-0x000000001B982000-memory.dmp

Filesize
2.9MB

Download
memory/2504-44-0x000000001B5A0000-0x000000001B882000-memory.dmp

Filesize
2.9MB

Download
memory/2504-45-0x0000000002810000-0x0000000002818000-memory.dmp

Filesize
32KB

Download
memory/2984-4-0x000007FEF53D0000-0x000007FEF5DBC000-memory.dmp

Filesize
9.9MB

Download
memory/2984-0-0x000007FEF53D3000-0x000007FEF53D4000-memory.dmp

Filesize
4KB

Download
memory/2984-3-0x000007FEF53D3000-0x000007FEF53D4000-memory.dmp

Filesize
4KB

Download
memory/2984-2-0x000007FEF53D0000-0x000007FEF5DBC000-memory.dmp

Filesize
9.9MB

Download
memory/2984-1-0x0000000000280000-0x00000000002C0000-memory.dmp

Filesize
256KB

Download
memory/2984-49-0x000007FEF53D0000-0x000007FEF5DBC000-memory.dmp

Filesize
9.9MB

Download