umbral | 732efb009641d9d8d38ad223649018ce8d0521f0e03c34112221d0525dda7855

Analysis

max time kernel
16s
max time network
17s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
25-08-2024 14:00

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General

Target

zetcheats/zetcheats.exe
Size

229KB
MD5

a5136c56ea838074a1b521860a45086c
SHA1

576f08a6e5e4ee6f0a438e5c58506e059497d015
SHA256

d4f221f62d10617dbbac44172e5e1d5b106a47c69ac4a2426eff77c9485c0707
SHA512

1dd818b836c898b85459d42f8163be1926149b569c3f918b994f89ddaea7939a27324b6964140008fa394cda77aa84f468361416a7db5ddcc8bba9ff5bc4c5c3
SSDEEP

6144:lloZM+rIkd8g+EtXHkv/iD4ClRVw2xpacPyAxVkQIb8e1mvi:noZtL+EP8ClRVw2xpacPyAxVklN

Score

10^/10

umbral credential_access discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral1/memory/1676-1-0x0000000000F90000-0x0000000000FD0000-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

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2848	powershell.exe
1700	powershell.exe
2604	powershell.exe
1960	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	zetcheats.exe

Deletes itself 1 IoCs

pid	Process
1808	cmd.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
9	discord.com
10	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
6	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
1664	PING.EXE
1808	cmd.exe

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
736	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1664	PING.EXE

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1676	zetcheats.exe
2848	powershell.exe
1700	powershell.exe
2604	powershell.exe
2040	powershell.exe
1960	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1676	zetcheats.exe
Token: SeIncreaseQuotaPrivilege	2896	wmic.exe
Token: SeSecurityPrivilege	2896	wmic.exe
Token: SeTakeOwnershipPrivilege	2896	wmic.exe
Token: SeLoadDriverPrivilege	2896	wmic.exe
Token: SeSystemProfilePrivilege	2896	wmic.exe
Token: SeSystemtimePrivilege	2896	wmic.exe
Token: SeProfSingleProcessPrivilege	2896	wmic.exe
Token: SeIncBasePriorityPrivilege	2896	wmic.exe
Token: SeCreatePagefilePrivilege	2896	wmic.exe
Token: SeBackupPrivilege	2896	wmic.exe
Token: SeRestorePrivilege	2896	wmic.exe
Token: SeShutdownPrivilege	2896	wmic.exe
Token: SeDebugPrivilege	2896	wmic.exe
Token: SeSystemEnvironmentPrivilege	2896	wmic.exe
Token: SeRemoteShutdownPrivilege	2896	wmic.exe
Token: SeUndockPrivilege	2896	wmic.exe
Token: SeManageVolumePrivilege	2896	wmic.exe
Token: 33	2896	wmic.exe
Token: 34	2896	wmic.exe
Token: 35	2896	wmic.exe
Token: SeIncreaseQuotaPrivilege	2896	wmic.exe
Token: SeSecurityPrivilege	2896	wmic.exe
Token: SeTakeOwnershipPrivilege	2896	wmic.exe
Token: SeLoadDriverPrivilege	2896	wmic.exe
Token: SeSystemProfilePrivilege	2896	wmic.exe
Token: SeSystemtimePrivilege	2896	wmic.exe
Token: SeProfSingleProcessPrivilege	2896	wmic.exe
Token: SeIncBasePriorityPrivilege	2896	wmic.exe
Token: SeCreatePagefilePrivilege	2896	wmic.exe
Token: SeBackupPrivilege	2896	wmic.exe
Token: SeRestorePrivilege	2896	wmic.exe
Token: SeShutdownPrivilege	2896	wmic.exe
Token: SeDebugPrivilege	2896	wmic.exe
Token: SeSystemEnvironmentPrivilege	2896	wmic.exe
Token: SeRemoteShutdownPrivilege	2896	wmic.exe
Token: SeUndockPrivilege	2896	wmic.exe
Token: SeManageVolumePrivilege	2896	wmic.exe
Token: 33	2896	wmic.exe
Token: 34	2896	wmic.exe
Token: 35	2896	wmic.exe
Token: SeDebugPrivilege	2848	powershell.exe
Token: SeDebugPrivilege	1700	powershell.exe
Token: SeDebugPrivilege	2604	powershell.exe
Token: SeDebugPrivilege	2040	powershell.exe
Token: SeIncreaseQuotaPrivilege	2592	wmic.exe
Token: SeSecurityPrivilege	2592	wmic.exe
Token: SeTakeOwnershipPrivilege	2592	wmic.exe
Token: SeLoadDriverPrivilege	2592	wmic.exe
Token: SeSystemProfilePrivilege	2592	wmic.exe
Token: SeSystemtimePrivilege	2592	wmic.exe
Token: SeProfSingleProcessPrivilege	2592	wmic.exe
Token: SeIncBasePriorityPrivilege	2592	wmic.exe
Token: SeCreatePagefilePrivilege	2592	wmic.exe
Token: SeBackupPrivilege	2592	wmic.exe
Token: SeRestorePrivilege	2592	wmic.exe
Token: SeShutdownPrivilege	2592	wmic.exe
Token: SeDebugPrivilege	2592	wmic.exe
Token: SeSystemEnvironmentPrivilege	2592	wmic.exe
Token: SeRemoteShutdownPrivilege	2592	wmic.exe
Token: SeUndockPrivilege	2592	wmic.exe
Token: SeManageVolumePrivilege	2592	wmic.exe
Token: 33	2592	wmic.exe
Token: 34	2592	wmic.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 1676 wrote to memory of 2896	1676	zetcheats.exe	30
PID 1676 wrote to memory of 2896	1676	zetcheats.exe	30
PID 1676 wrote to memory of 2896	1676	zetcheats.exe	30
PID 1676 wrote to memory of 2752	1676	zetcheats.exe	33
PID 1676 wrote to memory of 2752	1676	zetcheats.exe	33
PID 1676 wrote to memory of 2752	1676	zetcheats.exe	33
PID 1676 wrote to memory of 2848	1676	zetcheats.exe	35
PID 1676 wrote to memory of 2848	1676	zetcheats.exe	35
PID 1676 wrote to memory of 2848	1676	zetcheats.exe	35
PID 1676 wrote to memory of 1700	1676	zetcheats.exe	37
PID 1676 wrote to memory of 1700	1676	zetcheats.exe	37
PID 1676 wrote to memory of 1700	1676	zetcheats.exe	37
PID 1676 wrote to memory of 2604	1676	zetcheats.exe	39
PID 1676 wrote to memory of 2604	1676	zetcheats.exe	39
PID 1676 wrote to memory of 2604	1676	zetcheats.exe	39
PID 1676 wrote to memory of 2040	1676	zetcheats.exe	41
PID 1676 wrote to memory of 2040	1676	zetcheats.exe	41
PID 1676 wrote to memory of 2040	1676	zetcheats.exe	41
PID 1676 wrote to memory of 2592	1676	zetcheats.exe	43
PID 1676 wrote to memory of 2592	1676	zetcheats.exe	43
PID 1676 wrote to memory of 2592	1676	zetcheats.exe	43
PID 1676 wrote to memory of 2952	1676	zetcheats.exe	45
PID 1676 wrote to memory of 2952	1676	zetcheats.exe	45
PID 1676 wrote to memory of 2952	1676	zetcheats.exe	45
PID 1676 wrote to memory of 2968	1676	zetcheats.exe	47
PID 1676 wrote to memory of 2968	1676	zetcheats.exe	47
PID 1676 wrote to memory of 2968	1676	zetcheats.exe	47
PID 1676 wrote to memory of 1960	1676	zetcheats.exe	49
PID 1676 wrote to memory of 1960	1676	zetcheats.exe	49
PID 1676 wrote to memory of 1960	1676	zetcheats.exe	49
PID 1676 wrote to memory of 736	1676	zetcheats.exe	51
PID 1676 wrote to memory of 736	1676	zetcheats.exe	51
PID 1676 wrote to memory of 736	1676	zetcheats.exe	51
PID 1676 wrote to memory of 1808	1676	zetcheats.exe	53
PID 1676 wrote to memory of 1808	1676	zetcheats.exe	53
PID 1676 wrote to memory of 1808	1676	zetcheats.exe	53
PID 1808 wrote to memory of 1664	1808	cmd.exe	55
PID 1808 wrote to memory of 1664	1808	cmd.exe	55
PID 1808 wrote to memory of 1664	1808	cmd.exe	55

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2752	attrib.exe

C:\Users\Admin\AppData\Local\Temp\zetcheats\zetcheats.exe
"C:\Users\Admin\AppData\Local\Temp\zetcheats\zetcheats.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1676
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2896
- C:\Windows\system32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\zetcheats\zetcheats.exe"
  2⤵
  - Views/modifies file attributes
  PID:2752
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\zetcheats\zetcheats.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2848
- 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:1700
- 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:2604
- 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:2040
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2592
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:2952
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:2968
- 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:1960
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:736
- C:\Windows\system32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\zetcheats\zetcheats.exe" && pause
  2⤵
  - Deletes itself
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:1808
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:1664

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

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

Filesize
7KB

MD5
63cecd91e204dd4a907a7adbcd156a16

SHA1
2135d90f8acd41e87f4972a400d094aba8f45f05

SHA256
4cdb0ddbd5dd937e3df11c48a2ad6b3a2ede40e6c3d9dfb22e5740181cf1ff3f

SHA512
fa453dc40f56b26fb32b320343c8f2b5cda8e25b7efc958771e3b20bf7436d9115445a0ec184aeba865ffaa2b9eb240c51e73a1fc81188640ccf76f6a4842402

Download Submit
memory/1676-0-0x000007FEF67B3000-0x000007FEF67B4000-memory.dmp

Filesize
4KB

Download
memory/1676-1-0x0000000000F90000-0x0000000000FD0000-memory.dmp

Filesize
256KB

Download
memory/1676-2-0x000007FEF67B0000-0x000007FEF719C000-memory.dmp

Filesize
9.9MB

Download
memory/1676-43-0x000007FEF67B3000-0x000007FEF67B4000-memory.dmp

Filesize
4KB

Download
memory/1676-47-0x000007FEF67B0000-0x000007FEF719C000-memory.dmp

Filesize
9.9MB

Download
memory/1700-14-0x000000001B740000-0x000000001BA22000-memory.dmp

Filesize
2.9MB

Download
memory/1700-15-0x0000000001F50000-0x0000000001F58000-memory.dmp

Filesize
32KB

Download
memory/1960-42-0x00000000022A0000-0x00000000022A8000-memory.dmp

Filesize
32KB

Download
memory/2848-7-0x000000001B660000-0x000000001B942000-memory.dmp

Filesize
2.9MB

Download
memory/2848-8-0x0000000002790000-0x0000000002798000-memory.dmp

Filesize
32KB

Download