Malware Analysis Report

2024-10-10 10:05

Sample ID 240514-cn4gdsfa6y
Target asdaw.zip
SHA256 ea24a1aae83844683cbff898b52368d08ea8727855ea1478570745727cdac30a
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

ea24a1aae83844683cbff898b52368d08ea8727855ea1478570745727cdac30a

Threat Level: Known bad

The file asdaw.zip 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

Runs ping.exe

Views/modifies file attributes

Suspicious use of AdjustPrivilegeToken

Detects videocard installed

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-14 02:14

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

2024-05-14 02:14

Reported

2024-05-14 02:14

Platform

win10v2004-20240508-en

Max time kernel

10s

Max time network

8s

Command Line

"C:\Users\Admin\AppData\Local\Temp\PeIDK890XoXo.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\PeIDK890XoXo.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\PeIDK890XoXo.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 1736 wrote to memory of 3292 N/A C:\Users\Admin\AppData\Local\Temp\PeIDK890XoXo.exe C:\Windows\System32\Wbem\wmic.exe
PID 1736 wrote to memory of 3292 N/A C:\Users\Admin\AppData\Local\Temp\PeIDK890XoXo.exe C:\Windows\System32\Wbem\wmic.exe
PID 1736 wrote to memory of 4004 N/A C:\Users\Admin\AppData\Local\Temp\PeIDK890XoXo.exe C:\Windows\SYSTEM32\attrib.exe
PID 1736 wrote to memory of 4004 N/A C:\Users\Admin\AppData\Local\Temp\PeIDK890XoXo.exe C:\Windows\SYSTEM32\attrib.exe
PID 1736 wrote to memory of 2768 N/A C:\Users\Admin\AppData\Local\Temp\PeIDK890XoXo.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1736 wrote to memory of 2768 N/A C:\Users\Admin\AppData\Local\Temp\PeIDK890XoXo.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1736 wrote to memory of 3684 N/A C:\Users\Admin\AppData\Local\Temp\PeIDK890XoXo.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1736 wrote to memory of 3684 N/A C:\Users\Admin\AppData\Local\Temp\PeIDK890XoXo.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1736 wrote to memory of 384 N/A C:\Users\Admin\AppData\Local\Temp\PeIDK890XoXo.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1736 wrote to memory of 384 N/A C:\Users\Admin\AppData\Local\Temp\PeIDK890XoXo.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1736 wrote to memory of 4936 N/A C:\Users\Admin\AppData\Local\Temp\PeIDK890XoXo.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1736 wrote to memory of 4936 N/A C:\Users\Admin\AppData\Local\Temp\PeIDK890XoXo.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1736 wrote to memory of 4052 N/A C:\Users\Admin\AppData\Local\Temp\PeIDK890XoXo.exe C:\Windows\System32\Wbem\wmic.exe
PID 1736 wrote to memory of 4052 N/A C:\Users\Admin\AppData\Local\Temp\PeIDK890XoXo.exe C:\Windows\System32\Wbem\wmic.exe
PID 1736 wrote to memory of 1236 N/A C:\Users\Admin\AppData\Local\Temp\PeIDK890XoXo.exe C:\Windows\System32\Wbem\wmic.exe
PID 1736 wrote to memory of 1236 N/A C:\Users\Admin\AppData\Local\Temp\PeIDK890XoXo.exe C:\Windows\System32\Wbem\wmic.exe
PID 1736 wrote to memory of 4476 N/A C:\Users\Admin\AppData\Local\Temp\PeIDK890XoXo.exe C:\Windows\System32\Wbem\wmic.exe
PID 1736 wrote to memory of 4476 N/A C:\Users\Admin\AppData\Local\Temp\PeIDK890XoXo.exe C:\Windows\System32\Wbem\wmic.exe
PID 1736 wrote to memory of 4392 N/A C:\Users\Admin\AppData\Local\Temp\PeIDK890XoXo.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1736 wrote to memory of 4392 N/A C:\Users\Admin\AppData\Local\Temp\PeIDK890XoXo.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1736 wrote to memory of 1140 N/A C:\Users\Admin\AppData\Local\Temp\PeIDK890XoXo.exe C:\Windows\System32\Wbem\wmic.exe
PID 1736 wrote to memory of 1140 N/A C:\Users\Admin\AppData\Local\Temp\PeIDK890XoXo.exe C:\Windows\System32\Wbem\wmic.exe
PID 1736 wrote to memory of 3636 N/A C:\Users\Admin\AppData\Local\Temp\PeIDK890XoXo.exe C:\Windows\SYSTEM32\cmd.exe
PID 1736 wrote to memory of 3636 N/A C:\Users\Admin\AppData\Local\Temp\PeIDK890XoXo.exe C:\Windows\SYSTEM32\cmd.exe
PID 3636 wrote to memory of 2880 N/A C:\Windows\SYSTEM32\cmd.exe C:\Windows\system32\PING.EXE
PID 3636 wrote to memory of 2880 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\PeIDK890XoXo.exe

"C:\Users\Admin\AppData\Local\Temp\PeIDK890XoXo.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\PeIDK890XoXo.exe"

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

"powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\PeIDK890XoXo.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\PeIDK890XoXo.exe" && pause

C:\Windows\system32\PING.EXE

ping localhost

Network

Country Destination Domain Proto
US 8.8.8.8:53 gstatic.com udp
FR 142.250.75.227:443 gstatic.com tcp
US 8.8.8.8:53 ip-api.com udp
US 208.95.112.1:80 ip-api.com tcp
US 8.8.8.8:53 227.75.250.142.in-addr.arpa udp
US 8.8.8.8:53 1.112.95.208.in-addr.arpa udp
US 8.8.8.8:53 68.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 0.204.248.87.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
NL 23.62.61.194:443 www.bing.com tcp
US 8.8.8.8:53 194.61.62.23.in-addr.arpa udp
US 208.95.112.1:80 ip-api.com tcp
US 8.8.8.8:53 discord.com udp
US 162.159.137.232:443 discord.com tcp
US 8.8.8.8:53 232.137.159.162.in-addr.arpa udp

Files

memory/1736-0-0x00007FFF7C4A3000-0x00007FFF7C4A5000-memory.dmp

memory/1736-1-0x000002365DB70000-0x000002365DBB0000-memory.dmp

memory/1736-2-0x00007FFF7C4A0000-0x00007FFF7CF61000-memory.dmp

memory/2768-3-0x00007FFF7C4A0000-0x00007FFF7CF61000-memory.dmp

memory/2768-14-0x00007FFF7C4A0000-0x00007FFF7CF61000-memory.dmp

memory/2768-9-0x000001BF07E70000-0x000001BF07E92000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_vp2sozgy.uuk.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/2768-15-0x00007FFF7C4A0000-0x00007FFF7CF61000-memory.dmp

memory/2768-18-0x00007FFF7C4A0000-0x00007FFF7CF61000-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 d28a889fd956d5cb3accfbaf1143eb6f
SHA1 157ba54b365341f8ff06707d996b3635da8446f7
SHA256 21e5d7ccf80a293e6ba30ed728846ca19c929c52b96e2c8d34e27cd2234f1d45
SHA512 0b6d88deb9be85722e6a78d5886d49f2caf407a59e128d2b4ed74c1356f9928c40048a62731959f2460e9ff9d9feee311043d2a37abe3bb92c2b76a44281478c

memory/1736-33-0x0000023678300000-0x0000023678376000-memory.dmp

memory/1736-34-0x000002365F830000-0x000002365F880000-memory.dmp

memory/1736-35-0x000002365F880000-0x000002365F89E000-memory.dmp

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

MD5 28ef595a6cc9f47b8eccb22d4ed50d6c
SHA1 4335de707324b15eba79017938c3da2752d3eea5
SHA256 3abd14d4fe7b5697b2fa84993e7183f4fd2580be5b4e5150da15ddda5a9560b9
SHA512 687b7849faa62a4dabc240b573afa163f0cda9a80be61cebe28ef1461777744d73b465ac92d065093228068540846e79c899445057f5b906f9b9fa9868132208

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

MD5 548dd08570d121a65e82abb7171cae1c
SHA1 1a1b5084b3a78f3acd0d811cc79dbcac121217ab
SHA256 cdf17b8532ebcebac3cfe23954a30aa32edd268d040da79c82687e4ccb044adc
SHA512 37b98b09178b51eec9599af90d027d2f1028202efc1633047e16e41f1a95610984af5620baac07db085ccfcb96942aafffad17aa1f44f63233e83869dc9f697b

memory/1736-68-0x000002365F810000-0x000002365F81A000-memory.dmp

memory/1736-69-0x0000023678480000-0x0000023678492000-memory.dmp

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

MD5 ac057a92f4b62d8880169af0693ef5b2
SHA1 66e7c7834c5dae5cec863ccd69403150d05841f4
SHA256 7cef55990e8e6cfe07e1965b303e79ac562cdc128ab82edf480d9873f72bb3ed
SHA512 d525f47da9e61fc87e55aca6b34e776be3ed081b719bbbb5256705a6afe5fdd4c16d5ee595af13994e2718f789f5fd32830331347d97b029c031c9dfe30c7f49

memory/1736-87-0x00007FFF7C4A0000-0x00007FFF7CF61000-memory.dmp