umbral | d891136336eb391236b2cc2f6749440d9eb4dc8fc517eb1262cf739276657073

Analysis

max time kernel
19s
max time network
23s
platform
windows11-21h2_x64
resource
win11-20240704-en
resource tags

arch:x64arch:x86image:win11-20240704-enlocale:en-usos:windows11-21h2-x64system
submitted
06-07-2024 00:46

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General

Target

betaloader.exe
Size

482KB
MD5

f0463e89e4d196f296afb160224f63b0
SHA1

1ada6bf36121d08f96f4a09402774d3d5a065a7d
SHA256

d891136336eb391236b2cc2f6749440d9eb4dc8fc517eb1262cf739276657073
SHA512

8aacfd6f7c745d41bc639d90cb841652541ec17f7f745bd3ee9f2d24458b3b0c1a5d6b9d50a1e9a50a3e583841e4a443f8d930e626365bc729bff93d19528e34
SSDEEP

12288:6oZtL+EP8DWQVjgULgyD1Ac5H2xSY2RpX2ZrAyhteZN:+I86QVjgULgyD1Ac5HJBpX2Z3ts

Score

10^/10

umbral execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral1/memory/4244-1-0x0000019D42A50000-0x0000019D42ACE000-memory.dmp	family_umbral

Umbral
Umbral stealer is an opensource moduler stealer written in C#.
stealer umbral

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
3284	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	betaloader.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
1	discord.com
6	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
3	ip-api.com

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
4168	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2148	PING.EXE

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
4244	betaloader.exe
3284	powershell.exe
3284	powershell.exe
5368	powershell.exe
5368	powershell.exe
5012	powershell.exe
5012	powershell.exe
2840	powershell.exe
2840	powershell.exe
4512	powershell.exe
4512	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4244	betaloader.exe
Token: SeIncreaseQuotaPrivilege	5400	wmic.exe
Token: SeSecurityPrivilege	5400	wmic.exe
Token: SeTakeOwnershipPrivilege	5400	wmic.exe
Token: SeLoadDriverPrivilege	5400	wmic.exe
Token: SeSystemProfilePrivilege	5400	wmic.exe
Token: SeSystemtimePrivilege	5400	wmic.exe
Token: SeProfSingleProcessPrivilege	5400	wmic.exe
Token: SeIncBasePriorityPrivilege	5400	wmic.exe
Token: SeCreatePagefilePrivilege	5400	wmic.exe
Token: SeBackupPrivilege	5400	wmic.exe
Token: SeRestorePrivilege	5400	wmic.exe
Token: SeShutdownPrivilege	5400	wmic.exe
Token: SeDebugPrivilege	5400	wmic.exe
Token: SeSystemEnvironmentPrivilege	5400	wmic.exe
Token: SeRemoteShutdownPrivilege	5400	wmic.exe
Token: SeUndockPrivilege	5400	wmic.exe
Token: SeManageVolumePrivilege	5400	wmic.exe
Token: 33	5400	wmic.exe
Token: 34	5400	wmic.exe
Token: 35	5400	wmic.exe
Token: 36	5400	wmic.exe
Token: SeIncreaseQuotaPrivilege	5400	wmic.exe
Token: SeSecurityPrivilege	5400	wmic.exe
Token: SeTakeOwnershipPrivilege	5400	wmic.exe
Token: SeLoadDriverPrivilege	5400	wmic.exe
Token: SeSystemProfilePrivilege	5400	wmic.exe
Token: SeSystemtimePrivilege	5400	wmic.exe
Token: SeProfSingleProcessPrivilege	5400	wmic.exe
Token: SeIncBasePriorityPrivilege	5400	wmic.exe
Token: SeCreatePagefilePrivilege	5400	wmic.exe
Token: SeBackupPrivilege	5400	wmic.exe
Token: SeRestorePrivilege	5400	wmic.exe
Token: SeShutdownPrivilege	5400	wmic.exe
Token: SeDebugPrivilege	5400	wmic.exe
Token: SeSystemEnvironmentPrivilege	5400	wmic.exe
Token: SeRemoteShutdownPrivilege	5400	wmic.exe
Token: SeUndockPrivilege	5400	wmic.exe
Token: SeManageVolumePrivilege	5400	wmic.exe
Token: 33	5400	wmic.exe
Token: 34	5400	wmic.exe
Token: 35	5400	wmic.exe
Token: 36	5400	wmic.exe
Token: SeDebugPrivilege	3284	powershell.exe
Token: SeDebugPrivilege	5368	powershell.exe
Token: SeDebugPrivilege	5012	powershell.exe
Token: SeDebugPrivilege	2840	powershell.exe
Token: SeIncreaseQuotaPrivilege	5304	wmic.exe
Token: SeSecurityPrivilege	5304	wmic.exe
Token: SeTakeOwnershipPrivilege	5304	wmic.exe
Token: SeLoadDriverPrivilege	5304	wmic.exe
Token: SeSystemProfilePrivilege	5304	wmic.exe
Token: SeSystemtimePrivilege	5304	wmic.exe
Token: SeProfSingleProcessPrivilege	5304	wmic.exe
Token: SeIncBasePriorityPrivilege	5304	wmic.exe
Token: SeCreatePagefilePrivilege	5304	wmic.exe
Token: SeBackupPrivilege	5304	wmic.exe
Token: SeRestorePrivilege	5304	wmic.exe
Token: SeShutdownPrivilege	5304	wmic.exe
Token: SeDebugPrivilege	5304	wmic.exe
Token: SeSystemEnvironmentPrivilege	5304	wmic.exe
Token: SeRemoteShutdownPrivilege	5304	wmic.exe
Token: SeUndockPrivilege	5304	wmic.exe
Token: SeManageVolumePrivilege	5304	wmic.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 4244 wrote to memory of 5400	4244	betaloader.exe	80
PID 4244 wrote to memory of 5400	4244	betaloader.exe	80
PID 4244 wrote to memory of 3256	4244	betaloader.exe	84
PID 4244 wrote to memory of 3256	4244	betaloader.exe	84
PID 4244 wrote to memory of 3284	4244	betaloader.exe	86
PID 4244 wrote to memory of 3284	4244	betaloader.exe	86
PID 4244 wrote to memory of 5368	4244	betaloader.exe	88
PID 4244 wrote to memory of 5368	4244	betaloader.exe	88
PID 4244 wrote to memory of 5012	4244	betaloader.exe	90
PID 4244 wrote to memory of 5012	4244	betaloader.exe	90
PID 4244 wrote to memory of 2840	4244	betaloader.exe	92
PID 4244 wrote to memory of 2840	4244	betaloader.exe	92
PID 4244 wrote to memory of 5304	4244	betaloader.exe	94
PID 4244 wrote to memory of 5304	4244	betaloader.exe	94
PID 4244 wrote to memory of 4940	4244	betaloader.exe	96
PID 4244 wrote to memory of 4940	4244	betaloader.exe	96
PID 4244 wrote to memory of 1980	4244	betaloader.exe	98
PID 4244 wrote to memory of 1980	4244	betaloader.exe	98
PID 4244 wrote to memory of 4512	4244	betaloader.exe	100
PID 4244 wrote to memory of 4512	4244	betaloader.exe	100
PID 4244 wrote to memory of 4168	4244	betaloader.exe	102
PID 4244 wrote to memory of 4168	4244	betaloader.exe	102
PID 4244 wrote to memory of 4256	4244	betaloader.exe	104
PID 4244 wrote to memory of 4256	4244	betaloader.exe	104
PID 4256 wrote to memory of 2148	4256	cmd.exe	106
PID 4256 wrote to memory of 2148	4256	cmd.exe	106

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
3256	attrib.exe

C:\Users\Admin\AppData\Local\Temp\betaloader.exe
"C:\Users\Admin\AppData\Local\Temp\betaloader.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4244
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:5400
- C:\Windows\SYSTEM32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\betaloader.exe"
  2⤵
  - Views/modifies file attributes
  PID:3256
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\betaloader.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3284
- 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⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:5368
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Get-ItemPropertyValue -Path HKCU:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:5012
- 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:2840
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:5304
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:4940
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:1980
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Get-ItemPropertyValue -Path 'HKLM:System\CurrentControlSet\Control\Session Manager\Environment' -Name PROCESSOR_IDENTIFIER
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:4512
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:4168
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\betaloader.exe" && pause
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4256
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - Runs ping.exe
    PID:2148

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

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Remote System Discovery

T1018

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
627073ee3ca9676911bee35548eff2b8

SHA1
4c4b68c65e2cab9864b51167d710aa29ebdcff2e

SHA256
85b280a39fc31ba1e15fb06102a05b8405ff3b82feb181d4170f04e466dd647c

SHA512
3c5f6c03e253b83c57e8d6f0334187dbdcdf4fa549eecd36cbc1322dca6d3ca891dc6a019c49ec2eafb88f82d0434299c31e4dfaab123acb42e0546218f311fb

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

Filesize
944B

MD5
6903d57eed54e89b68ebb957928d1b99

SHA1
fade011fbf2e4bc044d41e380cf70bd6a9f73212

SHA256
36cbb00b016c9f97645fb628ef72b524dfbdf6e08d626e5c837bbbb9075dcb52

SHA512
c192ea9810fd22de8378269235c1035aa1fe1975a53c876fe4a7acc726c020f94773c21e4e4771133f9fcedb0209f0a5324c594c1db5b28fe1b27644db4fdc9e

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

Filesize
948B

MD5
a09feb289277c802560d2b15713f1ae0

SHA1
e131f13a795ac53da6f8f6f0b8b8d7bccd490d02

SHA256
e2984fff0e3a44d131ace475f2ed0fab4efa6d4f09335027fc534c7ca5588cc0

SHA512
27a663a178c87693401eb5e4c186cfabf4feb413fb7e6c252aa3de2ce9ea5be14277dd093f2d8ddd4d1701dcabb8ae78bb9246a5c1a45d18ecd937a9dc26deb7

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

Filesize
1KB

MD5
f29ff8b1e0f396a194a6782749830b8e

SHA1
2f8999b0eb2a20e591cf9a638c9fa84ddf4a1f69

SHA256
5bfd4968395fefaac3941c08fa11e86dfde1072137d9290aee3888f2a5d92d3f

SHA512
0689d665f2a7c9007c5dc4c14a53d5566d315d05d476bee82d64d02d40e3ffddca2b36419c76a8f7b7979958a62a7a93c939d1ed72fa7a844841ed06741b9e19

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

Filesize
1KB

MD5
df08dc547ef7be982b7ee4fafb32fa99

SHA1
823d7575100bdb278650a372c2f2ae421a923c1a

SHA256
38e5a3825146636477a0b13407af69ad5bc6ff92780c039c0e83a57fb3fad6f7

SHA512
ce705f0a00aa8914666d2255447224428072ec07d1a116fcca42295ab4e70689f93d881a397b6d2a8e98a3cbfa958b271e913cc975e9e5b3fd4f8f4014241e5d

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_00mvoq4f.nwi.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/3284-12-0x00007FFE80150000-0x00007FFE80C12000-memory.dmp

Filesize
10.8MB

Download
memory/3284-16-0x00007FFE80150000-0x00007FFE80C12000-memory.dmp

Filesize
10.8MB

Download
memory/3284-13-0x00007FFE80150000-0x00007FFE80C12000-memory.dmp

Filesize
10.8MB

Download
memory/3284-8-0x000001E155260000-0x000001E155282000-memory.dmp

Filesize
136KB

Download
memory/4244-0-0x00007FFE80153000-0x00007FFE80155000-memory.dmp

Filesize
8KB

Download
memory/4244-30-0x0000019D5D250000-0x0000019D5D2C6000-memory.dmp

Filesize
472KB

Download
memory/4244-31-0x0000019D5D2D0000-0x0000019D5D320000-memory.dmp

Filesize
320KB

Download
memory/4244-32-0x0000019D5D1E0000-0x0000019D5D1FE000-memory.dmp

Filesize
120KB

Download
memory/4244-2-0x00007FFE80150000-0x00007FFE80C12000-memory.dmp

Filesize
10.8MB

Download
memory/4244-66-0x0000019D5D210000-0x0000019D5D21A000-memory.dmp

Filesize
40KB

Download
memory/4244-67-0x0000019D5D320000-0x0000019D5D332000-memory.dmp

Filesize
72KB

Download
memory/4244-1-0x0000019D42A50000-0x0000019D42ACE000-memory.dmp

Filesize
504KB

Download
memory/4244-84-0x00007FFE80150000-0x00007FFE80C12000-memory.dmp

Filesize
10.8MB

Download