umbral | 7b12f8e98a56c0cab6238c8a60857085bd5c33769384a0b1d6e20a0322fc0626

Analysis

max time kernel
93s
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
23-12-2024 20:18

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General

Target

MVPLoader.exe
Size

296KB
MD5

a003b413af774f804d4636f1c548432d
SHA1

1278d0575f8f693f525b0c9382b9eb6c5a01f1f7
SHA256

701bcfb85c1c91cba00d1ab6642071739621b886e79255d874dd0def2adbe6b6
SHA512

9abbc1dae91f85e8565905cb78e7266e7dfa1a6c98e3c80dd2ad9e6d6fd955bd28b7b908c802c74a8e6960b98e85c4d040aa7e01adc0babb841634c339db79d6
SSDEEP

6144:9loZMCrIkd8g+EtXHkv/iD4uDwGPlO2Z0c1niinghb8e1mbietLjth6t0stcOtKc:foZZL+EP8uDwGPlO2Z0c1niingtK

Score

10^/10

umbral execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral2/memory/644-1-0x000001FBC17B0000-0x000001FBC1800000-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
4116	powershell.exe
2760	powershell.exe
4896	powershell.exe
904	powershell.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
23	discord.com
24	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
18	ip-api.com

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
1820	wmic.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
4116	powershell.exe
4116	powershell.exe
2760	powershell.exe
2760	powershell.exe
4896	powershell.exe
4896	powershell.exe
2876	powershell.exe
2876	powershell.exe
904	powershell.exe
904	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	644	MVPLoader.exe
Token: SeDebugPrivilege	4116	powershell.exe
Token: SeDebugPrivilege	2760	powershell.exe
Token: SeDebugPrivilege	4896	powershell.exe
Token: SeDebugPrivilege	2876	powershell.exe
Token: SeIncreaseQuotaPrivilege	3400	wmic.exe
Token: SeSecurityPrivilege	3400	wmic.exe
Token: SeTakeOwnershipPrivilege	3400	wmic.exe
Token: SeLoadDriverPrivilege	3400	wmic.exe
Token: SeSystemProfilePrivilege	3400	wmic.exe
Token: SeSystemtimePrivilege	3400	wmic.exe
Token: SeProfSingleProcessPrivilege	3400	wmic.exe
Token: SeIncBasePriorityPrivilege	3400	wmic.exe
Token: SeCreatePagefilePrivilege	3400	wmic.exe
Token: SeBackupPrivilege	3400	wmic.exe
Token: SeRestorePrivilege	3400	wmic.exe
Token: SeShutdownPrivilege	3400	wmic.exe
Token: SeDebugPrivilege	3400	wmic.exe
Token: SeSystemEnvironmentPrivilege	3400	wmic.exe
Token: SeRemoteShutdownPrivilege	3400	wmic.exe
Token: SeUndockPrivilege	3400	wmic.exe
Token: SeManageVolumePrivilege	3400	wmic.exe
Token: 33	3400	wmic.exe
Token: 34	3400	wmic.exe
Token: 35	3400	wmic.exe
Token: 36	3400	wmic.exe
Token: SeIncreaseQuotaPrivilege	3400	wmic.exe
Token: SeSecurityPrivilege	3400	wmic.exe
Token: SeTakeOwnershipPrivilege	3400	wmic.exe
Token: SeLoadDriverPrivilege	3400	wmic.exe
Token: SeSystemProfilePrivilege	3400	wmic.exe
Token: SeSystemtimePrivilege	3400	wmic.exe
Token: SeProfSingleProcessPrivilege	3400	wmic.exe
Token: SeIncBasePriorityPrivilege	3400	wmic.exe
Token: SeCreatePagefilePrivilege	3400	wmic.exe
Token: SeBackupPrivilege	3400	wmic.exe
Token: SeRestorePrivilege	3400	wmic.exe
Token: SeShutdownPrivilege	3400	wmic.exe
Token: SeDebugPrivilege	3400	wmic.exe
Token: SeSystemEnvironmentPrivilege	3400	wmic.exe
Token: SeRemoteShutdownPrivilege	3400	wmic.exe
Token: SeUndockPrivilege	3400	wmic.exe
Token: SeManageVolumePrivilege	3400	wmic.exe
Token: 33	3400	wmic.exe
Token: 34	3400	wmic.exe
Token: 35	3400	wmic.exe
Token: 36	3400	wmic.exe
Token: SeIncreaseQuotaPrivilege	3992	wmic.exe
Token: SeSecurityPrivilege	3992	wmic.exe
Token: SeTakeOwnershipPrivilege	3992	wmic.exe
Token: SeLoadDriverPrivilege	3992	wmic.exe
Token: SeSystemProfilePrivilege	3992	wmic.exe
Token: SeSystemtimePrivilege	3992	wmic.exe
Token: SeProfSingleProcessPrivilege	3992	wmic.exe
Token: SeIncBasePriorityPrivilege	3992	wmic.exe
Token: SeCreatePagefilePrivilege	3992	wmic.exe
Token: SeBackupPrivilege	3992	wmic.exe
Token: SeRestorePrivilege	3992	wmic.exe
Token: SeShutdownPrivilege	3992	wmic.exe
Token: SeDebugPrivilege	3992	wmic.exe
Token: SeSystemEnvironmentPrivilege	3992	wmic.exe
Token: SeRemoteShutdownPrivilege	3992	wmic.exe
Token: SeUndockPrivilege	3992	wmic.exe
Token: SeManageVolumePrivilege	3992	wmic.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 644 wrote to memory of 4116	644	MVPLoader.exe	83
PID 644 wrote to memory of 4116	644	MVPLoader.exe	83
PID 644 wrote to memory of 2760	644	MVPLoader.exe	85
PID 644 wrote to memory of 2760	644	MVPLoader.exe	85
PID 644 wrote to memory of 4896	644	MVPLoader.exe	87
PID 644 wrote to memory of 4896	644	MVPLoader.exe	87
PID 644 wrote to memory of 2876	644	MVPLoader.exe	89
PID 644 wrote to memory of 2876	644	MVPLoader.exe	89
PID 644 wrote to memory of 3400	644	MVPLoader.exe	91
PID 644 wrote to memory of 3400	644	MVPLoader.exe	91
PID 644 wrote to memory of 3992	644	MVPLoader.exe	94
PID 644 wrote to memory of 3992	644	MVPLoader.exe	94
PID 644 wrote to memory of 3612	644	MVPLoader.exe	96
PID 644 wrote to memory of 3612	644	MVPLoader.exe	96
PID 644 wrote to memory of 904	644	MVPLoader.exe	98
PID 644 wrote to memory of 904	644	MVPLoader.exe	98
PID 644 wrote to memory of 1820	644	MVPLoader.exe	101
PID 644 wrote to memory of 1820	644	MVPLoader.exe	101

C:\Users\Admin\AppData\Local\Temp\MVPLoader.exe
"C:\Users\Admin\AppData\Local\Temp\MVPLoader.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:644
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\MVPLoader.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4116
- 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:2760
- 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:4896
- 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:2876
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:3400
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:3992
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:3612
- 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:904
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:1820

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

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Information Discovery

T1082

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
77d622bb1a5b250869a3238b9bc1402b

SHA1
d47f4003c2554b9dfc4c16f22460b331886b191b

SHA256
f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb

SHA512
d6789b5499f23c9035375a102271e17a8a82e57d6f5312fa24242e08a83efdeb8becb7622f55c4cf1b89c7d864b445df11f4d994cf7e2f87a900535bcca12fd9

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

Filesize
948B

MD5
966914e2e771de7a4a57a95b6ecfa8a9

SHA1
7a32282fd51dd032967ed4d9a40cc57e265aeff2

SHA256
98d3c70d7004fa807897317bd6cd3e977b9b6c72d4d2565aca0f9f8b1c315cba

SHA512
dc39c7124a9c7c8d4c7e8e16290c46360b8d9a8f4e43edaacbbeb09bdcf20159a53db54d2b322372001b6a3de52b2f88e9088b5fdbc7638816ae0d122bb015f5

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
6317adf4fbc43ea2fd68861fafd57155

SHA1
6b87c718893c83c6eed2767e8d9cbc6443e31913

SHA256
c1ead17eef37b4b461cedc276504a441489e819c7f943037f2001966aeec90af

SHA512
17229aae8622e4bfc3caaac55684f7d4ccd3162af5919c851b1d8ac4060b6bb7b75044ecee116523d05acb55197dcb60780958f629450edef386f1e6f65f49f0

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_iqquzyw0.bh1.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/644-70-0x000001FBC3490000-0x000001FBC349A000-memory.dmp

Filesize
40KB

Download
memory/644-33-0x000001FBC3450000-0x000001FBC346E000-memory.dmp

Filesize
120KB

Download
memory/644-91-0x00007FFF26BA0000-0x00007FFF27661000-memory.dmp

Filesize
10.8MB

Download
memory/644-71-0x000001FBDC0D0000-0x000001FBDC0E2000-memory.dmp

Filesize
72KB

Download
memory/644-2-0x00007FFF26BA0000-0x00007FFF27661000-memory.dmp

Filesize
10.8MB

Download
memory/644-31-0x000001FBDBF50000-0x000001FBDBFC6000-memory.dmp

Filesize
472KB

Download
memory/644-32-0x000001FBDBED0000-0x000001FBDBF20000-memory.dmp

Filesize
320KB

Download
memory/644-0-0x00007FFF26BA3000-0x00007FFF26BA5000-memory.dmp

Filesize
8KB

Download
memory/644-1-0x000001FBC17B0000-0x000001FBC1800000-memory.dmp

Filesize
320KB

Download
memory/4116-15-0x00007FFF26BA0000-0x00007FFF27661000-memory.dmp

Filesize
10.8MB

Download
memory/4116-12-0x00007FFF26BA0000-0x00007FFF27661000-memory.dmp

Filesize
10.8MB

Download
memory/4116-14-0x00007FFF26BA0000-0x00007FFF27661000-memory.dmp

Filesize
10.8MB

Download
memory/4116-13-0x0000019D34390000-0x0000019D343B2000-memory.dmp

Filesize
136KB

Download
memory/4116-18-0x00007FFF26BA0000-0x00007FFF27661000-memory.dmp

Filesize
10.8MB

Download