umbral | 790373ad099621fefbbe0df00c3c9c1bc671d5f5aacca55f37e844e3d8b517ce

Analysis

max time kernel
18s
max time network
10s
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 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
behavioral2/memory/4996-1-0x00000270529E0000-0x0000027052A20000-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
1508	powershell.exe
2600	powershell.exe
2308	powershell.exe
4984	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
20	discord.com
21	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
1840	cmd.exe
1132	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
4572	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1132	PING.EXE

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
4996	Xeno Download.exe
1508	powershell.exe
1508	powershell.exe
2600	powershell.exe
2600	powershell.exe
2308	powershell.exe
2308	powershell.exe
888	powershell.exe
888	powershell.exe
4984	powershell.exe
4984	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4996	Xeno Download.exe
Token: SeIncreaseQuotaPrivilege	960	wmic.exe
Token: SeSecurityPrivilege	960	wmic.exe
Token: SeTakeOwnershipPrivilege	960	wmic.exe
Token: SeLoadDriverPrivilege	960	wmic.exe
Token: SeSystemProfilePrivilege	960	wmic.exe
Token: SeSystemtimePrivilege	960	wmic.exe
Token: SeProfSingleProcessPrivilege	960	wmic.exe
Token: SeIncBasePriorityPrivilege	960	wmic.exe
Token: SeCreatePagefilePrivilege	960	wmic.exe
Token: SeBackupPrivilege	960	wmic.exe
Token: SeRestorePrivilege	960	wmic.exe
Token: SeShutdownPrivilege	960	wmic.exe
Token: SeDebugPrivilege	960	wmic.exe
Token: SeSystemEnvironmentPrivilege	960	wmic.exe
Token: SeRemoteShutdownPrivilege	960	wmic.exe
Token: SeUndockPrivilege	960	wmic.exe
Token: SeManageVolumePrivilege	960	wmic.exe
Token: 33	960	wmic.exe
Token: 34	960	wmic.exe
Token: 35	960	wmic.exe
Token: 36	960	wmic.exe
Token: SeIncreaseQuotaPrivilege	960	wmic.exe
Token: SeSecurityPrivilege	960	wmic.exe
Token: SeTakeOwnershipPrivilege	960	wmic.exe
Token: SeLoadDriverPrivilege	960	wmic.exe
Token: SeSystemProfilePrivilege	960	wmic.exe
Token: SeSystemtimePrivilege	960	wmic.exe
Token: SeProfSingleProcessPrivilege	960	wmic.exe
Token: SeIncBasePriorityPrivilege	960	wmic.exe
Token: SeCreatePagefilePrivilege	960	wmic.exe
Token: SeBackupPrivilege	960	wmic.exe
Token: SeRestorePrivilege	960	wmic.exe
Token: SeShutdownPrivilege	960	wmic.exe
Token: SeDebugPrivilege	960	wmic.exe
Token: SeSystemEnvironmentPrivilege	960	wmic.exe
Token: SeRemoteShutdownPrivilege	960	wmic.exe
Token: SeUndockPrivilege	960	wmic.exe
Token: SeManageVolumePrivilege	960	wmic.exe
Token: 33	960	wmic.exe
Token: 34	960	wmic.exe
Token: 35	960	wmic.exe
Token: 36	960	wmic.exe
Token: SeDebugPrivilege	1508	powershell.exe
Token: SeDebugPrivilege	2600	powershell.exe
Token: SeDebugPrivilege	2308	powershell.exe
Token: SeDebugPrivilege	888	powershell.exe
Token: SeIncreaseQuotaPrivilege	5040	wmic.exe
Token: SeSecurityPrivilege	5040	wmic.exe
Token: SeTakeOwnershipPrivilege	5040	wmic.exe
Token: SeLoadDriverPrivilege	5040	wmic.exe
Token: SeSystemProfilePrivilege	5040	wmic.exe
Token: SeSystemtimePrivilege	5040	wmic.exe
Token: SeProfSingleProcessPrivilege	5040	wmic.exe
Token: SeIncBasePriorityPrivilege	5040	wmic.exe
Token: SeCreatePagefilePrivilege	5040	wmic.exe
Token: SeBackupPrivilege	5040	wmic.exe
Token: SeRestorePrivilege	5040	wmic.exe
Token: SeShutdownPrivilege	5040	wmic.exe
Token: SeDebugPrivilege	5040	wmic.exe
Token: SeSystemEnvironmentPrivilege	5040	wmic.exe
Token: SeRemoteShutdownPrivilege	5040	wmic.exe
Token: SeUndockPrivilege	5040	wmic.exe
Token: SeManageVolumePrivilege	5040	wmic.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 4996 wrote to memory of 960	4996	Xeno Download.exe	83
PID 4996 wrote to memory of 960	4996	Xeno Download.exe	83
PID 4996 wrote to memory of 4648	4996	Xeno Download.exe	86
PID 4996 wrote to memory of 4648	4996	Xeno Download.exe	86
PID 4996 wrote to memory of 1508	4996	Xeno Download.exe	88
PID 4996 wrote to memory of 1508	4996	Xeno Download.exe	88
PID 4996 wrote to memory of 2600	4996	Xeno Download.exe	90
PID 4996 wrote to memory of 2600	4996	Xeno Download.exe	90
PID 4996 wrote to memory of 2308	4996	Xeno Download.exe	92
PID 4996 wrote to memory of 2308	4996	Xeno Download.exe	92
PID 4996 wrote to memory of 888	4996	Xeno Download.exe	94
PID 4996 wrote to memory of 888	4996	Xeno Download.exe	94
PID 4996 wrote to memory of 5040	4996	Xeno Download.exe	96
PID 4996 wrote to memory of 5040	4996	Xeno Download.exe	96
PID 4996 wrote to memory of 1496	4996	Xeno Download.exe	98
PID 4996 wrote to memory of 1496	4996	Xeno Download.exe	98
PID 4996 wrote to memory of 3480	4996	Xeno Download.exe	100
PID 4996 wrote to memory of 3480	4996	Xeno Download.exe	100
PID 4996 wrote to memory of 4984	4996	Xeno Download.exe	102
PID 4996 wrote to memory of 4984	4996	Xeno Download.exe	102
PID 4996 wrote to memory of 4572	4996	Xeno Download.exe	104
PID 4996 wrote to memory of 4572	4996	Xeno Download.exe	104
PID 4996 wrote to memory of 1840	4996	Xeno Download.exe	106
PID 4996 wrote to memory of 1840	4996	Xeno Download.exe	106
PID 1840 wrote to memory of 1132	1840	cmd.exe	108
PID 1840 wrote to memory of 1132	1840	cmd.exe	108

Views/modifies file attributes 1 TTPs 1 IoCs

defense_evasion

Hidden Files and Directories

T1564.001

pid	Process
4648	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:4996
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:960
- C:\Windows\SYSTEM32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\Xeno Download.exe"
  2⤵
  - Views/modifies file attributes
  PID:4648
- 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:1508
- 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:2600
- 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:2308
- 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:888
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:5040
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:1496
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:3480
- 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:4984
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:4572
- 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:1840
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:1132

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
d28a889fd956d5cb3accfbaf1143eb6f

SHA1
157ba54b365341f8ff06707d996b3635da8446f7

SHA256
21e5d7ccf80a293e6ba30ed728846ca19c929c52b96e2c8d34e27cd2234f1d45

SHA512
0b6d88deb9be85722e6a78d5886d49f2caf407a59e128d2b4ed74c1356f9928c40048a62731959f2460e9ff9d9feee311043d2a37abe3bb92c2b76a44281478c

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

Filesize
948B

MD5
f4bf3ca8753d6bb9725419fec1ec74b9

SHA1
71fce9d17d1d92873236a9a827c52eb9e4827f3d

SHA256
ca8697e4ada4c3d4aac2899b8aad4052ccd605fccee05ee0a831368bde2f7417

SHA512
a55a107ae8bcf833ea674413c765cd55096146c9634dff41884fcc851c12fe47753308099525c99ae44883facfb668c8b292dd915263f34ebd1190391cb28a54

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
f60ff727ee108fff6e0644245a7c4953

SHA1
27ff6534b26831791c961fae30b91d74ab583338

SHA256
f707c6a9f829f58a4275e289b5f7e2b530eb651e4e87fc4603308abe646edbed

SHA512
5253b466a1f4fdb254e400a690d1e3ce434944ba688e0dd9bf9644c62a948adef89de01d9117632ba65dc345093deef6f7ce7debaba046e020a7e7722a8962eb

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_5iflr42v.jvl.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1508-4-0x00007FFCD44C0000-0x00007FFCD4F81000-memory.dmp

Filesize
10.8MB

Download
memory/1508-14-0x00000217507D0000-0x00000217507F2000-memory.dmp

Filesize
136KB

Download
memory/1508-15-0x00007FFCD44C0000-0x00007FFCD4F81000-memory.dmp

Filesize
10.8MB

Download
memory/1508-18-0x00007FFCD44C0000-0x00007FFCD4F81000-memory.dmp

Filesize
10.8MB

Download
memory/1508-3-0x00007FFCD44C0000-0x00007FFCD4F81000-memory.dmp

Filesize
10.8MB

Download
memory/4996-34-0x000002706D1D0000-0x000002706D220000-memory.dmp

Filesize
320KB

Download
memory/4996-33-0x000002706D150000-0x000002706D1C6000-memory.dmp

Filesize
472KB

Download
memory/4996-35-0x0000027054770000-0x000002705478E000-memory.dmp

Filesize
120KB

Download
memory/4996-1-0x00000270529E0000-0x0000027052A20000-memory.dmp

Filesize
256KB

Download
memory/4996-0-0x00007FFCD44C3000-0x00007FFCD44C5000-memory.dmp

Filesize
8KB

Download
memory/4996-72-0x000002706D0C0000-0x000002706D0CA000-memory.dmp

Filesize
40KB

Download
memory/4996-73-0x000002706D220000-0x000002706D232000-memory.dmp

Filesize
72KB

Download
memory/4996-2-0x00007FFCD44C0000-0x00007FFCD4F81000-memory.dmp

Filesize
10.8MB

Download
memory/4996-93-0x00007FFCD44C0000-0x00007FFCD4F81000-memory.dmp

Filesize
10.8MB

Download