umbral | c6298c23ea6aa8c78e17a6def30b855884bb0ea5ef9e6623f41c1519c7b1af94

Analysis

max time kernel
147s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
30-11-2024 13:54

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General

Target

Netflix Checker/Data/Modules/Netflix1.exe
Size

231KB
MD5

4d4914b127f4375b0c4ad1dd5dd99ff8
SHA1

153db21998c76d76c1f5d5f52f1f8f55b8f0b3ea
SHA256

f5ac145bb4853a5801cd13fb2f447384bd83f15b78494c025b4114386c2bf14d
SHA512

99a3860b040099077ad633bacc8115402ef36a737d2fa1c524b20b67651f0a5a0d4cb84f9cb3a35795196a1a78d3801b10f43abefe4810718e7077304e31cc42
SSDEEP

6144:xloZM+rIkd8g+EtXHkv/iD4nwkVpkqNlOjLWU1pANgI8e1mKhi:DoZtL+EP8nwkVpkqNlOjLWU1pAfA

Score

10^/10

umbral discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral12/memory/1680-1-0x0000029666860000-0x00000296668A0000-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
4764	powershell.exe
3836	powershell.exe
2524	powershell.exe
1776	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	Netflix1.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
8	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
1584	cmd.exe
2964	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
3112	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2964	PING.EXE

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
1680	Netflix1.exe
4764	powershell.exe
4764	powershell.exe
3836	powershell.exe
3836	powershell.exe
2524	powershell.exe
2524	powershell.exe
408	powershell.exe
408	powershell.exe
1776	powershell.exe
1776	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1680	Netflix1.exe
Token: SeIncreaseQuotaPrivilege	536	wmic.exe
Token: SeSecurityPrivilege	536	wmic.exe
Token: SeTakeOwnershipPrivilege	536	wmic.exe
Token: SeLoadDriverPrivilege	536	wmic.exe
Token: SeSystemProfilePrivilege	536	wmic.exe
Token: SeSystemtimePrivilege	536	wmic.exe
Token: SeProfSingleProcessPrivilege	536	wmic.exe
Token: SeIncBasePriorityPrivilege	536	wmic.exe
Token: SeCreatePagefilePrivilege	536	wmic.exe
Token: SeBackupPrivilege	536	wmic.exe
Token: SeRestorePrivilege	536	wmic.exe
Token: SeShutdownPrivilege	536	wmic.exe
Token: SeDebugPrivilege	536	wmic.exe
Token: SeSystemEnvironmentPrivilege	536	wmic.exe
Token: SeRemoteShutdownPrivilege	536	wmic.exe
Token: SeUndockPrivilege	536	wmic.exe
Token: SeManageVolumePrivilege	536	wmic.exe
Token: 33	536	wmic.exe
Token: 34	536	wmic.exe
Token: 35	536	wmic.exe
Token: 36	536	wmic.exe
Token: SeIncreaseQuotaPrivilege	536	wmic.exe
Token: SeSecurityPrivilege	536	wmic.exe
Token: SeTakeOwnershipPrivilege	536	wmic.exe
Token: SeLoadDriverPrivilege	536	wmic.exe
Token: SeSystemProfilePrivilege	536	wmic.exe
Token: SeSystemtimePrivilege	536	wmic.exe
Token: SeProfSingleProcessPrivilege	536	wmic.exe
Token: SeIncBasePriorityPrivilege	536	wmic.exe
Token: SeCreatePagefilePrivilege	536	wmic.exe
Token: SeBackupPrivilege	536	wmic.exe
Token: SeRestorePrivilege	536	wmic.exe
Token: SeShutdownPrivilege	536	wmic.exe
Token: SeDebugPrivilege	536	wmic.exe
Token: SeSystemEnvironmentPrivilege	536	wmic.exe
Token: SeRemoteShutdownPrivilege	536	wmic.exe
Token: SeUndockPrivilege	536	wmic.exe
Token: SeManageVolumePrivilege	536	wmic.exe
Token: 33	536	wmic.exe
Token: 34	536	wmic.exe
Token: 35	536	wmic.exe
Token: 36	536	wmic.exe
Token: SeDebugPrivilege	4764	powershell.exe
Token: SeDebugPrivilege	3836	powershell.exe
Token: SeDebugPrivilege	2524	powershell.exe
Token: SeDebugPrivilege	408	powershell.exe
Token: SeIncreaseQuotaPrivilege	2796	wmic.exe
Token: SeSecurityPrivilege	2796	wmic.exe
Token: SeTakeOwnershipPrivilege	2796	wmic.exe
Token: SeLoadDriverPrivilege	2796	wmic.exe
Token: SeSystemProfilePrivilege	2796	wmic.exe
Token: SeSystemtimePrivilege	2796	wmic.exe
Token: SeProfSingleProcessPrivilege	2796	wmic.exe
Token: SeIncBasePriorityPrivilege	2796	wmic.exe
Token: SeCreatePagefilePrivilege	2796	wmic.exe
Token: SeBackupPrivilege	2796	wmic.exe
Token: SeRestorePrivilege	2796	wmic.exe
Token: SeShutdownPrivilege	2796	wmic.exe
Token: SeDebugPrivilege	2796	wmic.exe
Token: SeSystemEnvironmentPrivilege	2796	wmic.exe
Token: SeRemoteShutdownPrivilege	2796	wmic.exe
Token: SeUndockPrivilege	2796	wmic.exe
Token: SeManageVolumePrivilege	2796	wmic.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 1680 wrote to memory of 536	1680	Netflix1.exe	83
PID 1680 wrote to memory of 536	1680	Netflix1.exe	83
PID 1680 wrote to memory of 1968	1680	Netflix1.exe	86
PID 1680 wrote to memory of 1968	1680	Netflix1.exe	86
PID 1680 wrote to memory of 4764	1680	Netflix1.exe	88
PID 1680 wrote to memory of 4764	1680	Netflix1.exe	88
PID 1680 wrote to memory of 3836	1680	Netflix1.exe	90
PID 1680 wrote to memory of 3836	1680	Netflix1.exe	90
PID 1680 wrote to memory of 2524	1680	Netflix1.exe	92
PID 1680 wrote to memory of 2524	1680	Netflix1.exe	92
PID 1680 wrote to memory of 408	1680	Netflix1.exe	94
PID 1680 wrote to memory of 408	1680	Netflix1.exe	94
PID 1680 wrote to memory of 2796	1680	Netflix1.exe	97
PID 1680 wrote to memory of 2796	1680	Netflix1.exe	97
PID 1680 wrote to memory of 3320	1680	Netflix1.exe	99
PID 1680 wrote to memory of 3320	1680	Netflix1.exe	99
PID 1680 wrote to memory of 4996	1680	Netflix1.exe	101
PID 1680 wrote to memory of 4996	1680	Netflix1.exe	101
PID 1680 wrote to memory of 1776	1680	Netflix1.exe	103
PID 1680 wrote to memory of 1776	1680	Netflix1.exe	103
PID 1680 wrote to memory of 3112	1680	Netflix1.exe	105
PID 1680 wrote to memory of 3112	1680	Netflix1.exe	105
PID 1680 wrote to memory of 1584	1680	Netflix1.exe	107
PID 1680 wrote to memory of 1584	1680	Netflix1.exe	107
PID 1584 wrote to memory of 2964	1584	cmd.exe	109
PID 1584 wrote to memory of 2964	1584	cmd.exe	109

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
1968	attrib.exe

C:\Users\Admin\AppData\Local\Temp\Netflix Checker\Data\Modules\Netflix1.exe
"C:\Users\Admin\AppData\Local\Temp\Netflix Checker\Data\Modules\Netflix1.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1680
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:536
- C:\Windows\SYSTEM32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\Netflix Checker\Data\Modules\Netflix1.exe"
  2⤵
  - Views/modifies file attributes
  PID:1968
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\Netflix Checker\Data\Modules\Netflix1.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4764
- 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:3836
- 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:2524
- 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:408
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2796
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:3320
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:4996
- 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:1776
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:3112
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\Netflix Checker\Data\Modules\Netflix1.exe" && pause
  2⤵
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:1584
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:2964

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
bd5940f08d0be56e65e5f2aaf47c538e

SHA1
d7e31b87866e5e383ab5499da64aba50f03e8443

SHA256
2d2f364c75bd2897504249f42cdf1d19374f5230aad68fa9154ea3d03e3031a6

SHA512
c34d10c7e07da44a180fae9889b61f08903aa84e8ddfa80c31c272b1ef9d491b8cec6b8a4c836c3cb1583fe8f4955c6a8db872515de3a9e10eae09610c959406

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

Filesize
948B

MD5
a1e9bda39fb34084c1a2e927ce4bb488

SHA1
ed4453988fa9cab104b400ed4fc12761176fc0fb

SHA256
83e2a7ee90d4a5f09ff54ee83d396bdfdf1efe3836204e6953f71c63a63f38b8

SHA512
fb9fbedabc7714df502b33d8d7f525d99635af3285a6b389dee9f67054649f7f2f447971be6c323a35da981fe4d14798aca611f093c33e265fa357cdd22d3139

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

Filesize
1KB

MD5
d3235ed022a42ec4338123ab87144afa

SHA1
5058608bc0deb720a585a2304a8f7cf63a50a315

SHA256
10663f5a1cb0afe5578f61ebaae2aafb363544e47b48521f9c23be9e6e431b27

SHA512
236761b7c68feca8bd62cba90cff0b25fac5613837aaa5d29ae823ace8b06a2057553cf7e72b11ccc59b6c289e471ca1bbac1a880aef5e2868875371a17c1abf

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

Filesize
1KB

MD5
ca58d1913d3261f116a299095e04f734

SHA1
941d13d0c8c65adb6513f23991acfa0d62facdea

SHA256
755daf72f2f5e983abb009c3b1eef4c7c660999f5ff581545bbcae7088c17c69

SHA512
87b0d8c9a5348235e9ad6416e09665764db1af408bf763857dc40e39411fa0cf405e3e8b9f0b8540c72aa874059d1dee865aa0cff8dba0fde5779ec9480b5e40

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_mgbhcgmi.bjc.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1680-72-0x0000029668E50000-0x0000029668E5A000-memory.dmp

Filesize
40KB

Download
memory/1680-35-0x0000029668E30000-0x0000029668E4E000-memory.dmp

Filesize
120KB

Download
memory/1680-95-0x00007FF867A20000-0x00007FF8684E1000-memory.dmp

Filesize
10.8MB

Download
memory/1680-90-0x00007FF867A20000-0x00007FF8684E1000-memory.dmp

Filesize
10.8MB

Download
memory/1680-2-0x00007FF867A20000-0x00007FF8684E1000-memory.dmp

Filesize
10.8MB

Download
memory/1680-33-0x0000029668FF0000-0x0000029669066000-memory.dmp

Filesize
472KB

Download
memory/1680-34-0x0000029668F70000-0x0000029668FC0000-memory.dmp

Filesize
320KB

Download
memory/1680-88-0x00007FF867A23000-0x00007FF867A25000-memory.dmp

Filesize
8KB

Download
memory/1680-1-0x0000029666860000-0x00000296668A0000-memory.dmp

Filesize
256KB

Download
memory/1680-0-0x00007FF867A23000-0x00007FF867A25000-memory.dmp

Filesize
8KB

Download
memory/1680-73-0x0000029669070000-0x0000029669082000-memory.dmp

Filesize
72KB

Download
memory/4764-9-0x000001F4B89C0000-0x000001F4B89E2000-memory.dmp

Filesize
136KB

Download
memory/4764-14-0x00007FF867A20000-0x00007FF8684E1000-memory.dmp

Filesize
10.8MB

Download
memory/4764-15-0x00007FF867A20000-0x00007FF8684E1000-memory.dmp

Filesize
10.8MB

Download
memory/4764-3-0x00007FF867A20000-0x00007FF8684E1000-memory.dmp

Filesize
10.8MB

Download
memory/4764-18-0x00007FF867A20000-0x00007FF8684E1000-memory.dmp

Filesize
10.8MB

Download