umbral | 0445ee531f81638261d4989a90d2202e117837fc0f992640f26720935fc07fb4

Analysis

max time kernel
96s
max time network
123s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
06/08/2024, 19:29

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
Twitch Patcheur Setup.exe
Size 288KB
Sample240806-x7mcfayanq
SHA256 0445ee531f81638261d4989a90d2202e117837fc0f992640f26720935fc07fb4
MD5 2c7d3d4ad2db30f12e3cae6540601762
SHA1 7c7464861056574cd273eed99283c0498278ffb9
SHA512 97b30ef326820cb28dd13a9f7919a330adbc053536c62484258c08f7ff9813fc547a9364e7125a831a798f33ed848c6a29d90312ad43fdeed46e098437375dc1
SSDEEP 6144:cloZM+rIkd8g+EtXHkv/iD41Rm89rI8j067NokRvBnb8e1m16oiolUaYmprYHtI:6oZtL+EP81Rm89rI8j067NokRx3oq8pr
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

umbral credential_access discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral2/memory/4544-0-0x0000021068160000-0x00000210681AE000-memory.dmp	family_umbral

Umbral
Umbral stealer is an opensource moduler stealer written in C#.
stealer umbral
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
1656	powershell.exe
3408	powershell.exe
3456	powershell.exe
4028	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	Twitch Patcheur Setup.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
23	discord.com
24	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

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
3196	cmd.exe
2740	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
1964	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2740	PING.EXE

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
4544	Twitch Patcheur Setup.exe
4028	powershell.exe
4028	powershell.exe
1656	powershell.exe
1656	powershell.exe
3408	powershell.exe
3408	powershell.exe
1984	powershell.exe
1984	powershell.exe
3456	powershell.exe
3456	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4544	Twitch Patcheur Setup.exe
Token: SeIncreaseQuotaPrivilege	5064	wmic.exe
Token: SeSecurityPrivilege	5064	wmic.exe
Token: SeTakeOwnershipPrivilege	5064	wmic.exe
Token: SeLoadDriverPrivilege	5064	wmic.exe
Token: SeSystemProfilePrivilege	5064	wmic.exe
Token: SeSystemtimePrivilege	5064	wmic.exe
Token: SeProfSingleProcessPrivilege	5064	wmic.exe
Token: SeIncBasePriorityPrivilege	5064	wmic.exe
Token: SeCreatePagefilePrivilege	5064	wmic.exe
Token: SeBackupPrivilege	5064	wmic.exe
Token: SeRestorePrivilege	5064	wmic.exe
Token: SeShutdownPrivilege	5064	wmic.exe
Token: SeDebugPrivilege	5064	wmic.exe
Token: SeSystemEnvironmentPrivilege	5064	wmic.exe
Token: SeRemoteShutdownPrivilege	5064	wmic.exe
Token: SeUndockPrivilege	5064	wmic.exe
Token: SeManageVolumePrivilege	5064	wmic.exe
Token: 33	5064	wmic.exe
Token: 34	5064	wmic.exe
Token: 35	5064	wmic.exe
Token: 36	5064	wmic.exe
Token: SeIncreaseQuotaPrivilege	5064	wmic.exe
Token: SeSecurityPrivilege	5064	wmic.exe
Token: SeTakeOwnershipPrivilege	5064	wmic.exe
Token: SeLoadDriverPrivilege	5064	wmic.exe
Token: SeSystemProfilePrivilege	5064	wmic.exe
Token: SeSystemtimePrivilege	5064	wmic.exe
Token: SeProfSingleProcessPrivilege	5064	wmic.exe
Token: SeIncBasePriorityPrivilege	5064	wmic.exe
Token: SeCreatePagefilePrivilege	5064	wmic.exe
Token: SeBackupPrivilege	5064	wmic.exe
Token: SeRestorePrivilege	5064	wmic.exe
Token: SeShutdownPrivilege	5064	wmic.exe
Token: SeDebugPrivilege	5064	wmic.exe
Token: SeSystemEnvironmentPrivilege	5064	wmic.exe
Token: SeRemoteShutdownPrivilege	5064	wmic.exe
Token: SeUndockPrivilege	5064	wmic.exe
Token: SeManageVolumePrivilege	5064	wmic.exe
Token: 33	5064	wmic.exe
Token: 34	5064	wmic.exe
Token: 35	5064	wmic.exe
Token: 36	5064	wmic.exe
Token: SeDebugPrivilege	4028	powershell.exe
Token: SeDebugPrivilege	1656	powershell.exe
Token: SeDebugPrivilege	3408	powershell.exe
Token: SeDebugPrivilege	1984	powershell.exe
Token: SeIncreaseQuotaPrivilege	4556	wmic.exe
Token: SeSecurityPrivilege	4556	wmic.exe
Token: SeTakeOwnershipPrivilege	4556	wmic.exe
Token: SeLoadDriverPrivilege	4556	wmic.exe
Token: SeSystemProfilePrivilege	4556	wmic.exe
Token: SeSystemtimePrivilege	4556	wmic.exe
Token: SeProfSingleProcessPrivilege	4556	wmic.exe
Token: SeIncBasePriorityPrivilege	4556	wmic.exe
Token: SeCreatePagefilePrivilege	4556	wmic.exe
Token: SeBackupPrivilege	4556	wmic.exe
Token: SeRestorePrivilege	4556	wmic.exe
Token: SeShutdownPrivilege	4556	wmic.exe
Token: SeDebugPrivilege	4556	wmic.exe
Token: SeSystemEnvironmentPrivilege	4556	wmic.exe
Token: SeRemoteShutdownPrivilege	4556	wmic.exe
Token: SeUndockPrivilege	4556	wmic.exe
Token: SeManageVolumePrivilege	4556	wmic.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 4544 wrote to memory of 5064	4544	Twitch Patcheur Setup.exe	85
PID 4544 wrote to memory of 5064	4544	Twitch Patcheur Setup.exe	85
PID 4544 wrote to memory of 2032	4544	Twitch Patcheur Setup.exe	89
PID 4544 wrote to memory of 2032	4544	Twitch Patcheur Setup.exe	89
PID 4544 wrote to memory of 4028	4544	Twitch Patcheur Setup.exe	91
PID 4544 wrote to memory of 4028	4544	Twitch Patcheur Setup.exe	91
PID 4544 wrote to memory of 1656	4544	Twitch Patcheur Setup.exe	93
PID 4544 wrote to memory of 1656	4544	Twitch Patcheur Setup.exe	93
PID 4544 wrote to memory of 3408	4544	Twitch Patcheur Setup.exe	95
PID 4544 wrote to memory of 3408	4544	Twitch Patcheur Setup.exe	95
PID 4544 wrote to memory of 1984	4544	Twitch Patcheur Setup.exe	97
PID 4544 wrote to memory of 1984	4544	Twitch Patcheur Setup.exe	97
PID 4544 wrote to memory of 4556	4544	Twitch Patcheur Setup.exe	99
PID 4544 wrote to memory of 4556	4544	Twitch Patcheur Setup.exe	99
PID 4544 wrote to memory of 4632	4544	Twitch Patcheur Setup.exe	101
PID 4544 wrote to memory of 4632	4544	Twitch Patcheur Setup.exe	101
PID 4544 wrote to memory of 3580	4544	Twitch Patcheur Setup.exe	103
PID 4544 wrote to memory of 3580	4544	Twitch Patcheur Setup.exe	103
PID 4544 wrote to memory of 3456	4544	Twitch Patcheur Setup.exe	105
PID 4544 wrote to memory of 3456	4544	Twitch Patcheur Setup.exe	105
PID 4544 wrote to memory of 1964	4544	Twitch Patcheur Setup.exe	107
PID 4544 wrote to memory of 1964	4544	Twitch Patcheur Setup.exe	107
PID 4544 wrote to memory of 3196	4544	Twitch Patcheur Setup.exe	109
PID 4544 wrote to memory of 3196	4544	Twitch Patcheur Setup.exe	109
PID 3196 wrote to memory of 2740	3196	cmd.exe	111
PID 3196 wrote to memory of 2740	3196	cmd.exe	111

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2032	attrib.exe

C:\Users\Admin\AppData\Local\Temp\Twitch Patcheur Setup.exe
"C:\Users\Admin\AppData\Local\Temp\Twitch Patcheur Setup.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4544
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:5064
- C:\Windows\SYSTEM32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\Twitch Patcheur Setup.exe"
  2⤵
  - Views/modifies file attributes
  PID:2032
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\Twitch Patcheur Setup.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4028
- 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⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1656
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Get-ItemPropertyValue -Path HKCU:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3408
- 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:1984
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:4556
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:4632
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:3580
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Get-ItemPropertyValue -Path 'HKLM:System\CurrentControlSet\Control\Session Manager\Environment' -Name PROCESSOR_IDENTIFIER
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  PID:3456
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:1964
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\Twitch Patcheur Setup.exe" && pause
  2⤵
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:3196
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:2740

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

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Remote System Discovery

T1018

System Information Discovery

T1082

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Web Service

T1102

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

powershell.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
Size 2KB
SHA256 84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f
MD5 d85ba6ff808d9e5444a4b369f5bc2730
SHA1 31aa9d96590fff6981b315e0b391b575e4c0804a
SHA512 8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249
MD5 SHA1 SHA512

Submit Download

StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 944B
SHA256 95d79fd575bbd21540e378fcbc1cd00d16f51af62ce15bae7080bb72c24e2010
MD5 62623d22bd9e037191765d5083ce16a3
SHA1 4a07da6872672f715a4780513d95ed8ddeefd259
SHA512 9a448b7a0d867466c2ea04ab84d2a9485d5fd20ab53b2b854f491831ee3f1d781b94d2635f7b0b35cb9f2d373cd52c67570879a56a42ed66bc9db06962ed4992
MD5 SHA1 SHA512

Submit Download

StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 948B
SHA256 4b7f800c0dea209162cc86627983993127eb20e3f8616646c41cb3ce15d9b39d
MD5 1a58f982c18490e622e00d4eb75ace5a
SHA1 60c30527b74659ecf09089a5a7c02a1df9a71b65
SHA512 ddab516a967783c5951717853aa5b3ef6dd5b442db50092888b2e7f3179fc68120fcde69a08d6ab280740eaadb6eadfc758c3118b52706f869e48ac1aebda480
MD5 SHA1 SHA512

Submit Download

StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 1KB
SHA256 5d139a221345fe53f28d2a772c8e4c8e988925b6fc228c81baa98f824a44c67c
MD5 4950bb37b35849b09a86bc7c01c8952a
SHA1 f9650f41d105d3affa7b19d58ab336a92aab4793
SHA512 5b39b845d6d53acd9a20fa1e3e081f7a4c5bbea4641ed53e6d1df8fb245a57e7a659cbdbdfe41ce642b6b2a7ff98b3dd3c9a5bcea7d226cead546d097f361a40
MD5 SHA1 SHA512

Submit Download

StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 1KB
SHA256 8b9e01d834815bd4a69152c70e0250e48f2b2af6665c2a57458bf89b011291fa
MD5 4bc57801806b2fc81aab7af5a05b9580
SHA1 b40d09af4d82edf546f2a4e570b66bc7429756f1
SHA512 c7c5a7eec6af15ae5c754d1549c5766a709770bdf43488e30617f7efdb5c8cee54f276397e76fb719622b538458947ce4c5c8cbe2490dc79bc9d14fe0e3e81f1
MD5 SHA1 SHA512

Submit Download

__PSScriptPolicyTest_mpsd0mbd.cvo.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_mpsd0mbd.cvo.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
MD5 SHA1 SHA512

Submit Download

memory/4028-8-0x0000019037560000-0x0000019037582000-memory.dmp

Download

memory/4028-14-0x00007FF830C60000-0x00007FF831721000-memory.dmp

Download

memory/4028-15-0x00007FF830C60000-0x00007FF831721000-memory.dmp

Download

memory/4028-18-0x00007FF830C60000-0x00007FF831721000-memory.dmp

Download

memory/4028-9-0x00007FF830C60000-0x00007FF831721000-memory.dmp

Download

memory/4544-34-0x000002106A940000-0x000002106A990000-memory.dmp

Download

memory/4544-33-0x000002106A8C0000-0x000002106A936000-memory.dmp

Download

memory/4544-35-0x000002106A9A0000-0x000002106A9BE000-memory.dmp

Download

memory/4544-1-0x00007FF830C63000-0x00007FF830C65000-memory.dmp

Download

memory/4544-0-0x0000021068160000-0x00000210681AE000-memory.dmp

Download

memory/4544-72-0x000002106A870000-0x000002106A882000-memory.dmp

Download

memory/4544-71-0x000002106A840000-0x000002106A84A000-memory.dmp

Download

memory/4544-2-0x00007FF830C60000-0x00007FF831721000-memory.dmp

Download

memory/4544-90-0x00007FF830C60000-0x00007FF831721000-memory.dmp

Download