umbral | 499282fecf90d5dcdf2b01ca4413c37477ec17b6068b43300dfeaefa1fb50978

Analysis

max time kernel
147s
max time network
153s
platform
windows11-21h2_x64
resource
win11-20240412-en
resource tags

arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system
submitted
15-04-2024 16:52

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General

Target

ClientBetaNew.exe
Size

229KB
MD5

e7fca17393a9f4cb9ccb2f65fc2bb214
SHA1

cef26fa30e3f68d85ab923beecc0cd0dbfa2a720
SHA256

499282fecf90d5dcdf2b01ca4413c37477ec17b6068b43300dfeaefa1fb50978
SHA512

303fe673e0d12410010971fb15ae58751948a7e0fb559e97acf5c73df0a7987dc8d423d59ebdfdfee79ef2696795ecf78543dcb74bebf6073a65229a2d24b80a
SSDEEP

6144:9loZM+rIkd8g+EtXHkv/iD4rzQumkrHM99YW3X2gyb8e1mtzi:foZtL+EP8rzQumkrHM99YW3X23Ie

Score

10^/10

umbral spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral4/memory/2972-0-0x00000118B3B70000-0x00000118B3BB0000-memory.dmp	family_umbral

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

Drops file in Drivers directory 1 IoCs

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

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
1632	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
8	PING.EXE

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
2972	ClientBetaNew.exe
2348	powershell.exe
2348	powershell.exe
4728	powershell.exe
4728	powershell.exe
2408	powershell.exe
2408	powershell.exe
4852	powershell.exe
4852	powershell.exe
1928	powershell.exe
1928	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2972	ClientBetaNew.exe
Token: SeIncreaseQuotaPrivilege	4676	wmic.exe
Token: SeSecurityPrivilege	4676	wmic.exe
Token: SeTakeOwnershipPrivilege	4676	wmic.exe
Token: SeLoadDriverPrivilege	4676	wmic.exe
Token: SeSystemProfilePrivilege	4676	wmic.exe
Token: SeSystemtimePrivilege	4676	wmic.exe
Token: SeProfSingleProcessPrivilege	4676	wmic.exe
Token: SeIncBasePriorityPrivilege	4676	wmic.exe
Token: SeCreatePagefilePrivilege	4676	wmic.exe
Token: SeBackupPrivilege	4676	wmic.exe
Token: SeRestorePrivilege	4676	wmic.exe
Token: SeShutdownPrivilege	4676	wmic.exe
Token: SeDebugPrivilege	4676	wmic.exe
Token: SeSystemEnvironmentPrivilege	4676	wmic.exe
Token: SeRemoteShutdownPrivilege	4676	wmic.exe
Token: SeUndockPrivilege	4676	wmic.exe
Token: SeManageVolumePrivilege	4676	wmic.exe
Token: 33	4676	wmic.exe
Token: 34	4676	wmic.exe
Token: 35	4676	wmic.exe
Token: 36	4676	wmic.exe
Token: SeIncreaseQuotaPrivilege	4676	wmic.exe
Token: SeSecurityPrivilege	4676	wmic.exe
Token: SeTakeOwnershipPrivilege	4676	wmic.exe
Token: SeLoadDriverPrivilege	4676	wmic.exe
Token: SeSystemProfilePrivilege	4676	wmic.exe
Token: SeSystemtimePrivilege	4676	wmic.exe
Token: SeProfSingleProcessPrivilege	4676	wmic.exe
Token: SeIncBasePriorityPrivilege	4676	wmic.exe
Token: SeCreatePagefilePrivilege	4676	wmic.exe
Token: SeBackupPrivilege	4676	wmic.exe
Token: SeRestorePrivilege	4676	wmic.exe
Token: SeShutdownPrivilege	4676	wmic.exe
Token: SeDebugPrivilege	4676	wmic.exe
Token: SeSystemEnvironmentPrivilege	4676	wmic.exe
Token: SeRemoteShutdownPrivilege	4676	wmic.exe
Token: SeUndockPrivilege	4676	wmic.exe
Token: SeManageVolumePrivilege	4676	wmic.exe
Token: 33	4676	wmic.exe
Token: 34	4676	wmic.exe
Token: 35	4676	wmic.exe
Token: 36	4676	wmic.exe
Token: SeDebugPrivilege	2348	powershell.exe
Token: SeDebugPrivilege	4728	powershell.exe
Token: SeDebugPrivilege	2408	powershell.exe
Token: SeDebugPrivilege	4852	powershell.exe
Token: SeIncreaseQuotaPrivilege	1680	wmic.exe
Token: SeSecurityPrivilege	1680	wmic.exe
Token: SeTakeOwnershipPrivilege	1680	wmic.exe
Token: SeLoadDriverPrivilege	1680	wmic.exe
Token: SeSystemProfilePrivilege	1680	wmic.exe
Token: SeSystemtimePrivilege	1680	wmic.exe
Token: SeProfSingleProcessPrivilege	1680	wmic.exe
Token: SeIncBasePriorityPrivilege	1680	wmic.exe
Token: SeCreatePagefilePrivilege	1680	wmic.exe
Token: SeBackupPrivilege	1680	wmic.exe
Token: SeRestorePrivilege	1680	wmic.exe
Token: SeShutdownPrivilege	1680	wmic.exe
Token: SeDebugPrivilege	1680	wmic.exe
Token: SeSystemEnvironmentPrivilege	1680	wmic.exe
Token: SeRemoteShutdownPrivilege	1680	wmic.exe
Token: SeUndockPrivilege	1680	wmic.exe
Token: SeManageVolumePrivilege	1680	wmic.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 2972 wrote to memory of 4676	2972	ClientBetaNew.exe	80
PID 2972 wrote to memory of 4676	2972	ClientBetaNew.exe	80
PID 2972 wrote to memory of 556	2972	ClientBetaNew.exe	83
PID 2972 wrote to memory of 556	2972	ClientBetaNew.exe	83
PID 2972 wrote to memory of 2348	2972	ClientBetaNew.exe	85
PID 2972 wrote to memory of 2348	2972	ClientBetaNew.exe	85
PID 2972 wrote to memory of 4728	2972	ClientBetaNew.exe	87
PID 2972 wrote to memory of 4728	2972	ClientBetaNew.exe	87
PID 2972 wrote to memory of 2408	2972	ClientBetaNew.exe	90
PID 2972 wrote to memory of 2408	2972	ClientBetaNew.exe	90
PID 2972 wrote to memory of 4852	2972	ClientBetaNew.exe	92
PID 2972 wrote to memory of 4852	2972	ClientBetaNew.exe	92
PID 2972 wrote to memory of 1680	2972	ClientBetaNew.exe	94
PID 2972 wrote to memory of 1680	2972	ClientBetaNew.exe	94
PID 2972 wrote to memory of 416	2972	ClientBetaNew.exe	96
PID 2972 wrote to memory of 416	2972	ClientBetaNew.exe	96
PID 2972 wrote to memory of 3880	2972	ClientBetaNew.exe	98
PID 2972 wrote to memory of 3880	2972	ClientBetaNew.exe	98
PID 2972 wrote to memory of 1928	2972	ClientBetaNew.exe	100
PID 2972 wrote to memory of 1928	2972	ClientBetaNew.exe	100
PID 2972 wrote to memory of 1632	2972	ClientBetaNew.exe	102
PID 2972 wrote to memory of 1632	2972	ClientBetaNew.exe	102
PID 2972 wrote to memory of 2156	2972	ClientBetaNew.exe	104
PID 2972 wrote to memory of 2156	2972	ClientBetaNew.exe	104
PID 2156 wrote to memory of 8	2156	cmd.exe	106
PID 2156 wrote to memory of 8	2156	cmd.exe	106

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
556	attrib.exe

C:\Users\Admin\AppData\Local\Temp\ClientBetaNew.exe
"C:\Users\Admin\AppData\Local\Temp\ClientBetaNew.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2972
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:4676
- C:\Windows\SYSTEM32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\ClientBetaNew.exe"
  2⤵
  - Views/modifies file attributes
  PID:556
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\ClientBetaNew.exe'
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2348
- 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:4728
- 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:2408
- 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:4852
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1680
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:416
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:3880
- 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:1928
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:1632
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\ClientBetaNew.exe" && pause
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2156
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - Runs ping.exe
    PID:8

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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

Replay Monitor

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Downloads

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

Filesize
2KB

MD5
5ba388a6597d5e09191c2c88d2fdf598

SHA1
13516f8ec5a99298f6952438055c39330feae5d8

SHA256
e6b6223094e8fc598ad12b3849e49f03a141ccd21e0eaa336f81791ad8443eca

SHA512
ead2a2b5a1c2fad70c1cf570b2c9bfcb7364dd9f257a834eb819e55b8fee78e3f191f93044f07d51c259ca77a90ee8530f9204cbae080fba1d5705e1209f5b19

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

Filesize
944B

MD5
687b3558d687becb30ad8f90997723cc

SHA1
fb326d7d105aba4d26e1764e73fd124cad23f298

SHA256
5283507c63132fdaf5d64bb0a09bcd6ae6d412a4df0be934268bf8e774207ece

SHA512
f827d61fad06764cefbca1688b8b2df7c07a1080be42f524de9765650382db84151ee90dd74b6568ea6f5bc582399695ec2c1c598256076f2dc91ff250450abd

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

Filesize
948B

MD5
6bddc96a32b9ed8fc70b141ccf4a39b2

SHA1
0f33c0699da40a5eadcec646791cf21cdb0dd7c6

SHA256
cb3853abe77eb0da8a1caccb49e97a573b6f35570722eb759116a645d724c132

SHA512
e41f1597b4129b759e4199db195df1c24e47cc47dc9850fab2d48e44bc3d37dc3658fbfbb62332a0b93c552587d7fab09de1634f605faa2209b8470c2a6eaca6

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

Filesize
1KB

MD5
7332074ae2b01262736b6fbd9e100dac

SHA1
22f992165065107cc9417fa4117240d84414a13c

SHA256
baea84fda6c1f13090b8cbd91c920848946f10ce155ef31a1df4cd453ee7e4aa

SHA512
4ae6f0e012c31ac1fc2ff4a8877ce2b4667c45b6e651de798318a39a2b6fd39a6f72dffa8b0b89b7a045a27d724d195656faa25a9fec79b22f37ddebb5d22da2

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

Filesize
1KB

MD5
9db2bc0a0bdfa296036c380393d879e6

SHA1
671288bb74f568effac2199c9213cf7e23a31ef9

SHA256
cce5cc392ad9a82edd35129076da6bb2c3ebe85e158efef8ee7740e9e722c678

SHA512
a1331966d5669c465ccbfbb588d8e09d295aba56be1e0bc895966da28916bdfb2e3333e24f48a54c68f3c3af0f78ec70cea1e07ec2e2647e154d7dfc4d412fc7

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_fs3dmbal.5t0.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1928-99-0x00007FFDE4580000-0x00007FFDE5042000-memory.dmp

Filesize
10.8MB

Download
memory/1928-96-0x000001B82A6A0000-0x000001B82A6B0000-memory.dmp

Filesize
64KB

Download
memory/1928-95-0x00007FFDE4580000-0x00007FFDE5042000-memory.dmp

Filesize
10.8MB

Download
memory/1928-97-0x000001B82A6A0000-0x000001B82A6B0000-memory.dmp

Filesize
64KB

Download
memory/2348-15-0x0000026723730000-0x0000026723740000-memory.dmp

Filesize
64KB

Download
memory/2348-18-0x00007FFDE4580000-0x00007FFDE5042000-memory.dmp

Filesize
10.8MB

Download
memory/2348-13-0x0000026723730000-0x0000026723740000-memory.dmp

Filesize
64KB

Download
memory/2348-14-0x0000026723730000-0x0000026723740000-memory.dmp

Filesize
64KB

Download
memory/2348-11-0x00000267236E0000-0x0000026723702000-memory.dmp

Filesize
136KB

Download
memory/2348-12-0x00007FFDE4580000-0x00007FFDE5042000-memory.dmp

Filesize
10.8MB

Download
memory/2408-40-0x000001D37ABE0000-0x000001D37ABF0000-memory.dmp

Filesize
64KB

Download
memory/2408-65-0x00007FFDE4580000-0x00007FFDE5042000-memory.dmp

Filesize
10.8MB

Download
memory/2408-41-0x000001D37ABE0000-0x000001D37ABF0000-memory.dmp

Filesize
64KB

Download
memory/2408-39-0x00007FFDE4580000-0x00007FFDE5042000-memory.dmp

Filesize
10.8MB

Download
memory/2972-38-0x00000118CE2B0000-0x00000118CE2CE000-memory.dmp

Filesize
120KB

Download
memory/2972-104-0x00007FFDE4580000-0x00007FFDE5042000-memory.dmp

Filesize
10.8MB

Download
memory/2972-37-0x00000118CE2E0000-0x00000118CE330000-memory.dmp

Filesize
320KB

Download
memory/2972-63-0x00007FFDE4580000-0x00007FFDE5042000-memory.dmp

Filesize
10.8MB

Download
memory/2972-36-0x00000118CE330000-0x00000118CE3A6000-memory.dmp

Filesize
472KB

Download
memory/2972-0-0x00000118B3B70000-0x00000118B3BB0000-memory.dmp

Filesize
256KB

Download
memory/2972-68-0x00000118CE0C0000-0x00000118CE0D0000-memory.dmp

Filesize
64KB

Download
memory/2972-82-0x00000118CE3D0000-0x00000118CE3DA000-memory.dmp

Filesize
40KB

Download
memory/2972-83-0x00000118CE400000-0x00000118CE412000-memory.dmp

Filesize
72KB

Download
memory/2972-1-0x00007FFDE4580000-0x00007FFDE5042000-memory.dmp

Filesize
10.8MB

Download
memory/2972-2-0x00000118CE0C0000-0x00000118CE0D0000-memory.dmp

Filesize
64KB

Download
memory/4728-33-0x00007FFDE4580000-0x00007FFDE5042000-memory.dmp

Filesize
10.8MB

Download
memory/4728-29-0x000002AF612B0000-0x000002AF612C0000-memory.dmp

Filesize
64KB

Download
memory/4728-28-0x00007FFDE4580000-0x00007FFDE5042000-memory.dmp

Filesize
10.8MB

Download
memory/4728-30-0x000002AF612B0000-0x000002AF612C0000-memory.dmp

Filesize
64KB

Download
memory/4852-66-0x00007FFDE4580000-0x00007FFDE5042000-memory.dmp

Filesize
10.8MB

Download
memory/4852-80-0x00007FFDE4580000-0x00007FFDE5042000-memory.dmp

Filesize
10.8MB

Download
memory/4852-78-0x0000021D95B60000-0x0000021D95B70000-memory.dmp

Filesize
64KB

Download
memory/4852-67-0x0000021D95B60000-0x0000021D95B70000-memory.dmp

Filesize
64KB

Download