umbral | 7cc4986dc20df19411853b438b5ab5ed120bbbd8a230179587184b764a1db0ed

Analysis

max time kernel
16s
max time network
16s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
05-02-2025 08:47

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General

Target

GeneratorKontMinecraft.exe
Size

229KB
MD5

c9f4abcf1c590b565096f62cb9c16a16
SHA1

64fe0fdb6ec501217e8323cf640492baa17e9805
SHA256

7cc4986dc20df19411853b438b5ab5ed120bbbd8a230179587184b764a1db0ed
SHA512

1671e3219bfb04991790b9b06e046d74309635613bf4e72ea80070613784fb38f26dfbe5e5ca7a57214eb68372cd8fb773e0a1d476db0b800cb77e69e9c8ba2e
SSDEEP

6144:lloZM+rIkd8g+EtXHkv/iD4SxaokqNlO5LWU1pAR6b8e1mji:noZtL+EP8SxaokqNlO5LWU1pAoB

Score

10^/10

umbral discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral1/memory/1956-1-0x0000000000130000-0x0000000000170000-memory.dmp	family_umbral

Umbral
Umbral stealer is an opensource moduler stealer written in C#.
stealer umbral
Umbral family
umbral

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
2844	powershell.exe
332	powershell.exe
2664	powershell.exe
1052	powershell.exe

Drops file in Drivers directory 1 IoCs

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

Deletes itself 1 IoCs

pid	Process
1740	cmd.exe

Reads user/profile data of web browsers 3 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

Credentials from Web Browsers
T1555.003

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
1740	cmd.exe
2256	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
1124	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2256	PING.EXE

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1956	GeneratorKontMinecraft.exe
2844	powershell.exe
2664	powershell.exe
1052	powershell.exe
276	powershell.exe
332	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1956	GeneratorKontMinecraft.exe
Token: SeIncreaseQuotaPrivilege	2748	wmic.exe
Token: SeSecurityPrivilege	2748	wmic.exe
Token: SeTakeOwnershipPrivilege	2748	wmic.exe
Token: SeLoadDriverPrivilege	2748	wmic.exe
Token: SeSystemProfilePrivilege	2748	wmic.exe
Token: SeSystemtimePrivilege	2748	wmic.exe
Token: SeProfSingleProcessPrivilege	2748	wmic.exe
Token: SeIncBasePriorityPrivilege	2748	wmic.exe
Token: SeCreatePagefilePrivilege	2748	wmic.exe
Token: SeBackupPrivilege	2748	wmic.exe
Token: SeRestorePrivilege	2748	wmic.exe
Token: SeShutdownPrivilege	2748	wmic.exe
Token: SeDebugPrivilege	2748	wmic.exe
Token: SeSystemEnvironmentPrivilege	2748	wmic.exe
Token: SeRemoteShutdownPrivilege	2748	wmic.exe
Token: SeUndockPrivilege	2748	wmic.exe
Token: SeManageVolumePrivilege	2748	wmic.exe
Token: 33	2748	wmic.exe
Token: 34	2748	wmic.exe
Token: 35	2748	wmic.exe
Token: SeIncreaseQuotaPrivilege	2748	wmic.exe
Token: SeSecurityPrivilege	2748	wmic.exe
Token: SeTakeOwnershipPrivilege	2748	wmic.exe
Token: SeLoadDriverPrivilege	2748	wmic.exe
Token: SeSystemProfilePrivilege	2748	wmic.exe
Token: SeSystemtimePrivilege	2748	wmic.exe
Token: SeProfSingleProcessPrivilege	2748	wmic.exe
Token: SeIncBasePriorityPrivilege	2748	wmic.exe
Token: SeCreatePagefilePrivilege	2748	wmic.exe
Token: SeBackupPrivilege	2748	wmic.exe
Token: SeRestorePrivilege	2748	wmic.exe
Token: SeShutdownPrivilege	2748	wmic.exe
Token: SeDebugPrivilege	2748	wmic.exe
Token: SeSystemEnvironmentPrivilege	2748	wmic.exe
Token: SeRemoteShutdownPrivilege	2748	wmic.exe
Token: SeUndockPrivilege	2748	wmic.exe
Token: SeManageVolumePrivilege	2748	wmic.exe
Token: 33	2748	wmic.exe
Token: 34	2748	wmic.exe
Token: 35	2748	wmic.exe
Token: SeDebugPrivilege	2844	powershell.exe
Token: SeDebugPrivilege	2664	powershell.exe
Token: SeDebugPrivilege	1052	powershell.exe
Token: SeDebugPrivilege	276	powershell.exe
Token: SeIncreaseQuotaPrivilege	924	wmic.exe
Token: SeSecurityPrivilege	924	wmic.exe
Token: SeTakeOwnershipPrivilege	924	wmic.exe
Token: SeLoadDriverPrivilege	924	wmic.exe
Token: SeSystemProfilePrivilege	924	wmic.exe
Token: SeSystemtimePrivilege	924	wmic.exe
Token: SeProfSingleProcessPrivilege	924	wmic.exe
Token: SeIncBasePriorityPrivilege	924	wmic.exe
Token: SeCreatePagefilePrivilege	924	wmic.exe
Token: SeBackupPrivilege	924	wmic.exe
Token: SeRestorePrivilege	924	wmic.exe
Token: SeShutdownPrivilege	924	wmic.exe
Token: SeDebugPrivilege	924	wmic.exe
Token: SeSystemEnvironmentPrivilege	924	wmic.exe
Token: SeRemoteShutdownPrivilege	924	wmic.exe
Token: SeUndockPrivilege	924	wmic.exe
Token: SeManageVolumePrivilege	924	wmic.exe
Token: 33	924	wmic.exe
Token: 34	924	wmic.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 1956 wrote to memory of 2748	1956	GeneratorKontMinecraft.exe	29
PID 1956 wrote to memory of 2748	1956	GeneratorKontMinecraft.exe	29
PID 1956 wrote to memory of 2748	1956	GeneratorKontMinecraft.exe	29
PID 1956 wrote to memory of 2624	1956	GeneratorKontMinecraft.exe	32
PID 1956 wrote to memory of 2624	1956	GeneratorKontMinecraft.exe	32
PID 1956 wrote to memory of 2624	1956	GeneratorKontMinecraft.exe	32
PID 1956 wrote to memory of 2844	1956	GeneratorKontMinecraft.exe	34
PID 1956 wrote to memory of 2844	1956	GeneratorKontMinecraft.exe	34
PID 1956 wrote to memory of 2844	1956	GeneratorKontMinecraft.exe	34
PID 1956 wrote to memory of 2664	1956	GeneratorKontMinecraft.exe	36
PID 1956 wrote to memory of 2664	1956	GeneratorKontMinecraft.exe	36
PID 1956 wrote to memory of 2664	1956	GeneratorKontMinecraft.exe	36
PID 1956 wrote to memory of 1052	1956	GeneratorKontMinecraft.exe	38
PID 1956 wrote to memory of 1052	1956	GeneratorKontMinecraft.exe	38
PID 1956 wrote to memory of 1052	1956	GeneratorKontMinecraft.exe	38
PID 1956 wrote to memory of 276	1956	GeneratorKontMinecraft.exe	40
PID 1956 wrote to memory of 276	1956	GeneratorKontMinecraft.exe	40
PID 1956 wrote to memory of 276	1956	GeneratorKontMinecraft.exe	40
PID 1956 wrote to memory of 924	1956	GeneratorKontMinecraft.exe	42
PID 1956 wrote to memory of 924	1956	GeneratorKontMinecraft.exe	42
PID 1956 wrote to memory of 924	1956	GeneratorKontMinecraft.exe	42
PID 1956 wrote to memory of 2688	1956	GeneratorKontMinecraft.exe	44
PID 1956 wrote to memory of 2688	1956	GeneratorKontMinecraft.exe	44
PID 1956 wrote to memory of 2688	1956	GeneratorKontMinecraft.exe	44
PID 1956 wrote to memory of 2972	1956	GeneratorKontMinecraft.exe	46
PID 1956 wrote to memory of 2972	1956	GeneratorKontMinecraft.exe	46
PID 1956 wrote to memory of 2972	1956	GeneratorKontMinecraft.exe	46
PID 1956 wrote to memory of 332	1956	GeneratorKontMinecraft.exe	48
PID 1956 wrote to memory of 332	1956	GeneratorKontMinecraft.exe	48
PID 1956 wrote to memory of 332	1956	GeneratorKontMinecraft.exe	48
PID 1956 wrote to memory of 1124	1956	GeneratorKontMinecraft.exe	50
PID 1956 wrote to memory of 1124	1956	GeneratorKontMinecraft.exe	50
PID 1956 wrote to memory of 1124	1956	GeneratorKontMinecraft.exe	50
PID 1956 wrote to memory of 1740	1956	GeneratorKontMinecraft.exe	52
PID 1956 wrote to memory of 1740	1956	GeneratorKontMinecraft.exe	52
PID 1956 wrote to memory of 1740	1956	GeneratorKontMinecraft.exe	52
PID 1740 wrote to memory of 2256	1740	cmd.exe	54
PID 1740 wrote to memory of 2256	1740	cmd.exe	54
PID 1740 wrote to memory of 2256	1740	cmd.exe	54

Views/modifies file attributes 1 TTPs 1 IoCs

defense_evasion

Hidden Files and Directories

T1564.001

pid	Process
2624	attrib.exe

C:\Users\Admin\AppData\Local\Temp\GeneratorKontMinecraft.exe
"C:\Users\Admin\AppData\Local\Temp\GeneratorKontMinecraft.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1956
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2748
- C:\Windows\system32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\GeneratorKontMinecraft.exe"
  2⤵
  - Views/modifies file attributes
  PID:2624
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\GeneratorKontMinecraft.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2844
- 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:2664
- 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:1052
- 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:276
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:924
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:2688
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:2972
- 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:332
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:1124
- C:\Windows\system32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\GeneratorKontMinecraft.exe" && pause
  2⤵
  - Deletes itself
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:1740
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:2256

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
b5b70714f8d4aeac7e16b668f5558c7a

SHA1
3c33b36cc3a4454b0d9432f7e51c36fdf7b07c2d

SHA256
14b9ef19556a950dd614ff8489b76c20f26a9e50798215809fff723b0c2cfd3e

SHA512
3bf6e922591258d679948032689b36cfbcbec890471de8324ed8a4a24f8094512b6b88da82bf17864edef90006b410cdcb0607050cb9b60461e4d9ee1053e41c

Download Submit
memory/332-43-0x0000000001FD0000-0x0000000001FD8000-memory.dmp

Filesize
32KB

Download
memory/1956-0-0x000007FEF5E03000-0x000007FEF5E04000-memory.dmp

Filesize
4KB

Download
memory/1956-1-0x0000000000130000-0x0000000000170000-memory.dmp

Filesize
256KB

Download
memory/1956-2-0x000007FEF5E00000-0x000007FEF67EC000-memory.dmp

Filesize
9.9MB

Download
memory/1956-47-0x000007FEF5E00000-0x000007FEF67EC000-memory.dmp

Filesize
9.9MB

Download
memory/2664-14-0x000000001B680000-0x000000001B962000-memory.dmp

Filesize
2.9MB

Download
memory/2664-15-0x0000000001DA0000-0x0000000001DA8000-memory.dmp

Filesize
32KB

Download
memory/2844-7-0x000000001B770000-0x000000001BA52000-memory.dmp

Filesize
2.9MB

Download
memory/2844-8-0x0000000001D20000-0x0000000001D28000-memory.dmp

Filesize
32KB

Download