Malware Analysis Report

2024-10-10 09:58

Sample ID 240627-zdmgfszbja
Target Launcher.exe
SHA256 6c37b3d7cba096ed83d54a1c31ca265f79567e4b4b9339d1f07b18b5013182d3
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

6c37b3d7cba096ed83d54a1c31ca265f79567e4b4b9339d1f07b18b5013182d3

Threat Level: Known bad

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

Malicious Activity Summary

umbral execution spyware stealer

Detect Umbral payload

Umbral family

Umbral

Command and Scripting Interpreter: PowerShell

Drops file in Drivers directory

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

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Detects videocard installed

Runs ping.exe

Suspicious use of AdjustPrivilegeToken

Views/modifies file attributes

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-27 20:36

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

2024-06-27 20:36

Reported

2024-06-27 20:39

Platform

win10v2004-20240508-en

Max time kernel

93s

Max time network

104s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Launcher.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\Launcher.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\Launcher.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 2816 wrote to memory of 116 N/A C:\Users\Admin\AppData\Local\Temp\Launcher.exe C:\Windows\System32\Wbem\wmic.exe
PID 2816 wrote to memory of 116 N/A C:\Users\Admin\AppData\Local\Temp\Launcher.exe C:\Windows\System32\Wbem\wmic.exe
PID 2816 wrote to memory of 4176 N/A C:\Users\Admin\AppData\Local\Temp\Launcher.exe C:\Windows\SYSTEM32\attrib.exe
PID 2816 wrote to memory of 4176 N/A C:\Users\Admin\AppData\Local\Temp\Launcher.exe C:\Windows\SYSTEM32\attrib.exe
PID 2816 wrote to memory of 4496 N/A C:\Users\Admin\AppData\Local\Temp\Launcher.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 2816 wrote to memory of 4496 N/A C:\Users\Admin\AppData\Local\Temp\Launcher.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 2816 wrote to memory of 1708 N/A C:\Users\Admin\AppData\Local\Temp\Launcher.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 2816 wrote to memory of 1708 N/A C:\Users\Admin\AppData\Local\Temp\Launcher.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 2816 wrote to memory of 1556 N/A C:\Users\Admin\AppData\Local\Temp\Launcher.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 2816 wrote to memory of 1556 N/A C:\Users\Admin\AppData\Local\Temp\Launcher.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 2816 wrote to memory of 2708 N/A C:\Users\Admin\AppData\Local\Temp\Launcher.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 2816 wrote to memory of 2708 N/A C:\Users\Admin\AppData\Local\Temp\Launcher.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 2816 wrote to memory of 2120 N/A C:\Users\Admin\AppData\Local\Temp\Launcher.exe C:\Windows\System32\Wbem\wmic.exe
PID 2816 wrote to memory of 2120 N/A C:\Users\Admin\AppData\Local\Temp\Launcher.exe C:\Windows\System32\Wbem\wmic.exe
PID 2816 wrote to memory of 1888 N/A C:\Users\Admin\AppData\Local\Temp\Launcher.exe C:\Windows\System32\Wbem\wmic.exe
PID 2816 wrote to memory of 1888 N/A C:\Users\Admin\AppData\Local\Temp\Launcher.exe C:\Windows\System32\Wbem\wmic.exe
PID 2816 wrote to memory of 3164 N/A C:\Users\Admin\AppData\Local\Temp\Launcher.exe C:\Windows\System32\Wbem\wmic.exe
PID 2816 wrote to memory of 3164 N/A C:\Users\Admin\AppData\Local\Temp\Launcher.exe C:\Windows\System32\Wbem\wmic.exe
PID 2816 wrote to memory of 3864 N/A C:\Users\Admin\AppData\Local\Temp\Launcher.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 2816 wrote to memory of 3864 N/A C:\Users\Admin\AppData\Local\Temp\Launcher.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 2816 wrote to memory of 4684 N/A C:\Users\Admin\AppData\Local\Temp\Launcher.exe C:\Windows\System32\Wbem\wmic.exe
PID 2816 wrote to memory of 4684 N/A C:\Users\Admin\AppData\Local\Temp\Launcher.exe C:\Windows\System32\Wbem\wmic.exe
PID 2816 wrote to memory of 4268 N/A C:\Users\Admin\AppData\Local\Temp\Launcher.exe C:\Windows\SYSTEM32\cmd.exe
PID 2816 wrote to memory of 4268 N/A C:\Users\Admin\AppData\Local\Temp\Launcher.exe C:\Windows\SYSTEM32\cmd.exe
PID 4268 wrote to memory of 900 N/A C:\Windows\SYSTEM32\cmd.exe C:\Windows\system32\PING.EXE
PID 4268 wrote to memory of 900 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\Launcher.exe

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

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

"powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\Launcher.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\Launcher.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 ip-api.com udp
US 208.95.112.1:80 ip-api.com tcp
US 8.8.8.8:53 227.16.217.172.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 82.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 1.112.95.208.in-addr.arpa udp
US 8.8.8.8:53 133.32.126.40.in-addr.arpa udp
US 208.95.112.1:80 ip-api.com tcp
US 8.8.8.8:53 discord.com udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 162.159.136.232:443 discord.com tcp
US 8.8.8.8:53 232.136.159.162.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 17.14.97.104.in-addr.arpa udp
IE 52.111.236.23:443 tcp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp

Files

memory/2816-0-0x000001DE1DBB0000-0x000001DE1DC32000-memory.dmp

memory/2816-1-0x00007FFB9F983000-0x00007FFB9F985000-memory.dmp

memory/2816-2-0x00007FFB9F980000-0x00007FFBA0441000-memory.dmp

memory/4496-3-0x00007FFB9F980000-0x00007FFBA0441000-memory.dmp

memory/4496-4-0x00007FFB9F980000-0x00007FFBA0441000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_1etbbewx.3zk.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/4496-14-0x000002C664410000-0x000002C664432000-memory.dmp

memory/4496-15-0x00007FFB9F980000-0x00007FFBA0441000-memory.dmp

memory/4496-18-0x00007FFB9F980000-0x00007FFBA0441000-memory.dmp

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

MD5 d85ba6ff808d9e5444a4b369f5bc2730
SHA1 31aa9d96590fff6981b315e0b391b575e4c0804a
SHA256 84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f
SHA512 8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

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

MD5 77d622bb1a5b250869a3238b9bc1402b
SHA1 d47f4003c2554b9dfc4c16f22460b331886b191b
SHA256 f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb
SHA512 d6789b5499f23c9035375a102271e17a8a82e57d6f5312fa24242e08a83efdeb8becb7622f55c4cf1b89c7d864b445df11f4d994cf7e2f87a900535bcca12fd9

memory/2816-33-0x000001DE38340000-0x000001DE383B6000-memory.dmp

memory/2816-34-0x000001DE383C0000-0x000001DE38410000-memory.dmp

memory/2816-35-0x000001DE382E0000-0x000001DE382FE000-memory.dmp

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

MD5 1a58f982c18490e622e00d4eb75ace5a
SHA1 60c30527b74659ecf09089a5a7c02a1df9a71b65
SHA256 4b7f800c0dea209162cc86627983993127eb20e3f8616646c41cb3ce15d9b39d
SHA512 ddab516a967783c5951717853aa5b3ef6dd5b442db50092888b2e7f3179fc68120fcde69a08d6ab280740eaadb6eadfc758c3118b52706f869e48ac1aebda480

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

MD5 276798eeb29a49dc6e199768bc9c2e71
SHA1 5fdc8ccb897ac2df7476fbb07517aca5b7a6205b
SHA256 cd0a1056e8f1b6cb5cb328532239d802f4e2aa8f8fcdc0fcb487684bd68e0dcc
SHA512 0d34fce64bbefc57d64fa6e03ca886952263d5f24df9c1c4cce6a1e8f5a47a9a21e9820f8d38caa7f7b43a52336ce00b738ea18419aaa7c788b72e04ce19e4f2

memory/2816-72-0x000001DE38510000-0x000001DE38522000-memory.dmp

memory/2816-71-0x000001DE38300000-0x000001DE3830A000-memory.dmp

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

MD5 b97dcce26bfd19481f2589acb5d5c53e
SHA1 78483c36b9f76b7ad21783655f11451546d83157
SHA256 78cdcbbae48288a069928c697f6c6b1829c3b458c212ef450dfb8fb5bfb60aa4
SHA512 b1b4d6ea7c4df0298eb5ad000783bceb0865ae4429e14f90fc95334c144e6e0d100d8432c3d6145154c72b46eafb7e3c6c4263483d9e7347d7d91b11b25d68a2

memory/2816-90-0x00007FFB9F980000-0x00007FFBA0441000-memory.dmp