umbral | 09cfe7bb59e480a26b8be2568294e174316cb0c06a2536ad1400b748300350b0

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
21-08-2024 21:56

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General

Target

eulen crack.exe
Size

227KB
MD5

2f402bc7b8a9014cec4f649f3531aa84
SHA1

2c035521a6e8428554066bb1335daa44311169c5
SHA256

09cfe7bb59e480a26b8be2568294e174316cb0c06a2536ad1400b748300350b0
SHA512

3b92ed2bceb0cb8fc64fbf850f47504cde1bceb6351cb4489f5b44a9b76e6d9e69a4f9e66b067d295a5e40fd3cdd145cf71a52d2bca2bec75aeb77f4985c054f
SSDEEP

6144:eloZM+rIkd8g+EtXHkv/iD48HP3ohv0IHU2PxM4d8zb8e1m9i:IoZtL+EP88HP3ohv0IHU2PxM4dy/

Score

10^/10

umbral credential_access discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral1/memory/2680-1-0x0000000000D40000-0x0000000000D80000-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
2896	powershell.exe
1620	powershell.exe
2864	powershell.exe
3056	powershell.exe

Drops file in Drivers directory 1 IoCs

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

Deletes itself 1 IoCs

pid	Process
2088	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
1956	PING.EXE
2088	cmd.exe

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
2808	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1956	PING.EXE

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2680	eulen crack.exe
2896	powershell.exe
2864	powershell.exe
3056	powershell.exe
1068	powershell.exe
1620	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2680	eulen crack.exe
Token: SeIncreaseQuotaPrivilege	2524	wmic.exe
Token: SeSecurityPrivilege	2524	wmic.exe
Token: SeTakeOwnershipPrivilege	2524	wmic.exe
Token: SeLoadDriverPrivilege	2524	wmic.exe
Token: SeSystemProfilePrivilege	2524	wmic.exe
Token: SeSystemtimePrivilege	2524	wmic.exe
Token: SeProfSingleProcessPrivilege	2524	wmic.exe
Token: SeIncBasePriorityPrivilege	2524	wmic.exe
Token: SeCreatePagefilePrivilege	2524	wmic.exe
Token: SeBackupPrivilege	2524	wmic.exe
Token: SeRestorePrivilege	2524	wmic.exe
Token: SeShutdownPrivilege	2524	wmic.exe
Token: SeDebugPrivilege	2524	wmic.exe
Token: SeSystemEnvironmentPrivilege	2524	wmic.exe
Token: SeRemoteShutdownPrivilege	2524	wmic.exe
Token: SeUndockPrivilege	2524	wmic.exe
Token: SeManageVolumePrivilege	2524	wmic.exe
Token: 33	2524	wmic.exe
Token: 34	2524	wmic.exe
Token: 35	2524	wmic.exe
Token: SeIncreaseQuotaPrivilege	2524	wmic.exe
Token: SeSecurityPrivilege	2524	wmic.exe
Token: SeTakeOwnershipPrivilege	2524	wmic.exe
Token: SeLoadDriverPrivilege	2524	wmic.exe
Token: SeSystemProfilePrivilege	2524	wmic.exe
Token: SeSystemtimePrivilege	2524	wmic.exe
Token: SeProfSingleProcessPrivilege	2524	wmic.exe
Token: SeIncBasePriorityPrivilege	2524	wmic.exe
Token: SeCreatePagefilePrivilege	2524	wmic.exe
Token: SeBackupPrivilege	2524	wmic.exe
Token: SeRestorePrivilege	2524	wmic.exe
Token: SeShutdownPrivilege	2524	wmic.exe
Token: SeDebugPrivilege	2524	wmic.exe
Token: SeSystemEnvironmentPrivilege	2524	wmic.exe
Token: SeRemoteShutdownPrivilege	2524	wmic.exe
Token: SeUndockPrivilege	2524	wmic.exe
Token: SeManageVolumePrivilege	2524	wmic.exe
Token: 33	2524	wmic.exe
Token: 34	2524	wmic.exe
Token: 35	2524	wmic.exe
Token: SeDebugPrivilege	2896	powershell.exe
Token: SeDebugPrivilege	2864	powershell.exe
Token: SeDebugPrivilege	3056	powershell.exe
Token: SeDebugPrivilege	1068	powershell.exe
Token: SeIncreaseQuotaPrivilege	1748	wmic.exe
Token: SeSecurityPrivilege	1748	wmic.exe
Token: SeTakeOwnershipPrivilege	1748	wmic.exe
Token: SeLoadDriverPrivilege	1748	wmic.exe
Token: SeSystemProfilePrivilege	1748	wmic.exe
Token: SeSystemtimePrivilege	1748	wmic.exe
Token: SeProfSingleProcessPrivilege	1748	wmic.exe
Token: SeIncBasePriorityPrivilege	1748	wmic.exe
Token: SeCreatePagefilePrivilege	1748	wmic.exe
Token: SeBackupPrivilege	1748	wmic.exe
Token: SeRestorePrivilege	1748	wmic.exe
Token: SeShutdownPrivilege	1748	wmic.exe
Token: SeDebugPrivilege	1748	wmic.exe
Token: SeSystemEnvironmentPrivilege	1748	wmic.exe
Token: SeRemoteShutdownPrivilege	1748	wmic.exe
Token: SeUndockPrivilege	1748	wmic.exe
Token: SeManageVolumePrivilege	1748	wmic.exe
Token: 33	1748	wmic.exe
Token: 34	1748	wmic.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 2680 wrote to memory of 2524	2680	eulen crack.exe	30
PID 2680 wrote to memory of 2524	2680	eulen crack.exe	30
PID 2680 wrote to memory of 2524	2680	eulen crack.exe	30
PID 2680 wrote to memory of 2892	2680	eulen crack.exe	34
PID 2680 wrote to memory of 2892	2680	eulen crack.exe	34
PID 2680 wrote to memory of 2892	2680	eulen crack.exe	34
PID 2680 wrote to memory of 2896	2680	eulen crack.exe	36
PID 2680 wrote to memory of 2896	2680	eulen crack.exe	36
PID 2680 wrote to memory of 2896	2680	eulen crack.exe	36
PID 2680 wrote to memory of 2864	2680	eulen crack.exe	38
PID 2680 wrote to memory of 2864	2680	eulen crack.exe	38
PID 2680 wrote to memory of 2864	2680	eulen crack.exe	38
PID 2680 wrote to memory of 3056	2680	eulen crack.exe	40
PID 2680 wrote to memory of 3056	2680	eulen crack.exe	40
PID 2680 wrote to memory of 3056	2680	eulen crack.exe	40
PID 2680 wrote to memory of 1068	2680	eulen crack.exe	42
PID 2680 wrote to memory of 1068	2680	eulen crack.exe	42
PID 2680 wrote to memory of 1068	2680	eulen crack.exe	42
PID 2680 wrote to memory of 1748	2680	eulen crack.exe	44
PID 2680 wrote to memory of 1748	2680	eulen crack.exe	44
PID 2680 wrote to memory of 1748	2680	eulen crack.exe	44
PID 2680 wrote to memory of 1912	2680	eulen crack.exe	46
PID 2680 wrote to memory of 1912	2680	eulen crack.exe	46
PID 2680 wrote to memory of 1912	2680	eulen crack.exe	46
PID 2680 wrote to memory of 1988	2680	eulen crack.exe	48
PID 2680 wrote to memory of 1988	2680	eulen crack.exe	48
PID 2680 wrote to memory of 1988	2680	eulen crack.exe	48
PID 2680 wrote to memory of 1620	2680	eulen crack.exe	50
PID 2680 wrote to memory of 1620	2680	eulen crack.exe	50
PID 2680 wrote to memory of 1620	2680	eulen crack.exe	50
PID 2680 wrote to memory of 2808	2680	eulen crack.exe	52
PID 2680 wrote to memory of 2808	2680	eulen crack.exe	52
PID 2680 wrote to memory of 2808	2680	eulen crack.exe	52
PID 2680 wrote to memory of 2088	2680	eulen crack.exe	54
PID 2680 wrote to memory of 2088	2680	eulen crack.exe	54
PID 2680 wrote to memory of 2088	2680	eulen crack.exe	54
PID 2088 wrote to memory of 1956	2088	cmd.exe	56
PID 2088 wrote to memory of 1956	2088	cmd.exe	56
PID 2088 wrote to memory of 1956	2088	cmd.exe	56

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2892	attrib.exe

C:\Users\Admin\AppData\Local\Temp\eulen crack.exe
"C:\Users\Admin\AppData\Local\Temp\eulen crack.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2680
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2524
- C:\Windows\system32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\eulen crack.exe"
  2⤵
  - Views/modifies file attributes
  PID:2892
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\eulen crack.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2896
- 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:2864
- 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:3056
- 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:1068
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1748
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:1912
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:1988
- 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:1620
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:2808
- C:\Windows\system32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\eulen crack.exe" && pause
  2⤵
  - Deletes itself
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2088
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:1956

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
d1e3208115f458ba38f595da78fedeb9

SHA1
4c60c20f98b4f546df0f2ecc6d62ca8490574956

SHA256
f0a22ed649508472eab34da164453a87c1d0be6ed42497be3c13fe1400ad9c32

SHA512
0cc8f02d11987f07461fd96e80e01eb0ae7b2443b3f0f98048ae3f23e49d5307466ac404b51f28e6cedec49baf6897f1640d612172a4e1e575f05c3875d2e35f

Download Submit
memory/1620-46-0x0000000001EF0000-0x0000000001EF8000-memory.dmp

Filesize
32KB

Download
memory/1620-45-0x000000001B720000-0x000000001BA02000-memory.dmp

Filesize
2.9MB

Download
memory/2680-38-0x000007FEF5943000-0x000007FEF5944000-memory.dmp

Filesize
4KB

Download
memory/2680-1-0x0000000000D40000-0x0000000000D80000-memory.dmp

Filesize
256KB

Download
memory/2680-2-0x000007FEF5940000-0x000007FEF632C000-memory.dmp

Filesize
9.9MB

Download
memory/2680-50-0x000007FEF5940000-0x000007FEF632C000-memory.dmp

Filesize
9.9MB

Download
memory/2680-0-0x000007FEF5943000-0x000007FEF5944000-memory.dmp

Filesize
4KB

Download
memory/2864-14-0x000000001B790000-0x000000001BA72000-memory.dmp

Filesize
2.9MB

Download
memory/2864-15-0x0000000002340000-0x0000000002348000-memory.dmp

Filesize
32KB

Download
memory/2896-8-0x0000000001C80000-0x0000000001C88000-memory.dmp

Filesize
32KB

Download
memory/2896-7-0x000000001B5C0000-0x000000001B8A2000-memory.dmp

Filesize
2.9MB

Download