umbral | 46a67cdc899f61ccb6324d187d56b389f720d72beb02594fd60fdc4a8ca62ab4

Analysis

max time kernel
119s
max time network
119s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
31-12-2024 02:22

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General

Target

46a67cdc899f61ccb6324d187d56b389f720d72beb02594fd60fdc4a8ca62ab4.exe
Size

229KB
MD5

b56af795f8b7edc6f35a9e905921ed0e
SHA1

c82cb0088bc9c93fd9a491ad278f410d44265a4d
SHA256

46a67cdc899f61ccb6324d187d56b389f720d72beb02594fd60fdc4a8ca62ab4
SHA512

c35b429e243845337903fa5cc6853c6921514b2fcd84e7788607aa47414be9b2101c8b87acd1766666daa7fc0cdd2b7a5be19ac5754db8f12c3e262ea792f9c6
SSDEEP

6144:dloZM+rIkd8g+EtXHkv/iD4M7+QWRJ6RvSgR1E9/gF8e1mfIi:/oZtL+EP8M7+QWRJ6RvSgR1Ecqx

Score

10^/10

umbral discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral1/memory/2184-1-0x00000000003D0000-0x0000000000410000-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
808	powershell.exe
3052	powershell.exe
2060	powershell.exe
1856	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	46a67cdc899f61ccb6324d187d56b389f720d72beb02594fd60fdc4a8ca62ab4.exe

Deletes itself 1 IoCs

pid	Process
3064	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
3064	cmd.exe
2320	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
1708	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2320	PING.EXE

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2184	46a67cdc899f61ccb6324d187d56b389f720d72beb02594fd60fdc4a8ca62ab4.exe
808	powershell.exe
3052	powershell.exe
2060	powershell.exe
1756	powershell.exe
1856	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2184	46a67cdc899f61ccb6324d187d56b389f720d72beb02594fd60fdc4a8ca62ab4.exe
Token: SeIncreaseQuotaPrivilege	2160	wmic.exe
Token: SeSecurityPrivilege	2160	wmic.exe
Token: SeTakeOwnershipPrivilege	2160	wmic.exe
Token: SeLoadDriverPrivilege	2160	wmic.exe
Token: SeSystemProfilePrivilege	2160	wmic.exe
Token: SeSystemtimePrivilege	2160	wmic.exe
Token: SeProfSingleProcessPrivilege	2160	wmic.exe
Token: SeIncBasePriorityPrivilege	2160	wmic.exe
Token: SeCreatePagefilePrivilege	2160	wmic.exe
Token: SeBackupPrivilege	2160	wmic.exe
Token: SeRestorePrivilege	2160	wmic.exe
Token: SeShutdownPrivilege	2160	wmic.exe
Token: SeDebugPrivilege	2160	wmic.exe
Token: SeSystemEnvironmentPrivilege	2160	wmic.exe
Token: SeRemoteShutdownPrivilege	2160	wmic.exe
Token: SeUndockPrivilege	2160	wmic.exe
Token: SeManageVolumePrivilege	2160	wmic.exe
Token: 33	2160	wmic.exe
Token: 34	2160	wmic.exe
Token: 35	2160	wmic.exe
Token: SeIncreaseQuotaPrivilege	2160	wmic.exe
Token: SeSecurityPrivilege	2160	wmic.exe
Token: SeTakeOwnershipPrivilege	2160	wmic.exe
Token: SeLoadDriverPrivilege	2160	wmic.exe
Token: SeSystemProfilePrivilege	2160	wmic.exe
Token: SeSystemtimePrivilege	2160	wmic.exe
Token: SeProfSingleProcessPrivilege	2160	wmic.exe
Token: SeIncBasePriorityPrivilege	2160	wmic.exe
Token: SeCreatePagefilePrivilege	2160	wmic.exe
Token: SeBackupPrivilege	2160	wmic.exe
Token: SeRestorePrivilege	2160	wmic.exe
Token: SeShutdownPrivilege	2160	wmic.exe
Token: SeDebugPrivilege	2160	wmic.exe
Token: SeSystemEnvironmentPrivilege	2160	wmic.exe
Token: SeRemoteShutdownPrivilege	2160	wmic.exe
Token: SeUndockPrivilege	2160	wmic.exe
Token: SeManageVolumePrivilege	2160	wmic.exe
Token: 33	2160	wmic.exe
Token: 34	2160	wmic.exe
Token: 35	2160	wmic.exe
Token: SeDebugPrivilege	808	powershell.exe
Token: SeDebugPrivilege	3052	powershell.exe
Token: SeDebugPrivilege	2060	powershell.exe
Token: SeDebugPrivilege	1756	powershell.exe
Token: SeIncreaseQuotaPrivilege	1976	wmic.exe
Token: SeSecurityPrivilege	1976	wmic.exe
Token: SeTakeOwnershipPrivilege	1976	wmic.exe
Token: SeLoadDriverPrivilege	1976	wmic.exe
Token: SeSystemProfilePrivilege	1976	wmic.exe
Token: SeSystemtimePrivilege	1976	wmic.exe
Token: SeProfSingleProcessPrivilege	1976	wmic.exe
Token: SeIncBasePriorityPrivilege	1976	wmic.exe
Token: SeCreatePagefilePrivilege	1976	wmic.exe
Token: SeBackupPrivilege	1976	wmic.exe
Token: SeRestorePrivilege	1976	wmic.exe
Token: SeShutdownPrivilege	1976	wmic.exe
Token: SeDebugPrivilege	1976	wmic.exe
Token: SeSystemEnvironmentPrivilege	1976	wmic.exe
Token: SeRemoteShutdownPrivilege	1976	wmic.exe
Token: SeUndockPrivilege	1976	wmic.exe
Token: SeManageVolumePrivilege	1976	wmic.exe
Token: 33	1976	wmic.exe
Token: 34	1976	wmic.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 2184 wrote to memory of 2160	2184	46a67cdc899f61ccb6324d187d56b389f720d72beb02594fd60fdc4a8ca62ab4.exe	30
PID 2184 wrote to memory of 2160	2184	46a67cdc899f61ccb6324d187d56b389f720d72beb02594fd60fdc4a8ca62ab4.exe	30
PID 2184 wrote to memory of 2160	2184	46a67cdc899f61ccb6324d187d56b389f720d72beb02594fd60fdc4a8ca62ab4.exe	30
PID 2184 wrote to memory of 2740	2184	46a67cdc899f61ccb6324d187d56b389f720d72beb02594fd60fdc4a8ca62ab4.exe	33
PID 2184 wrote to memory of 2740	2184	46a67cdc899f61ccb6324d187d56b389f720d72beb02594fd60fdc4a8ca62ab4.exe	33
PID 2184 wrote to memory of 2740	2184	46a67cdc899f61ccb6324d187d56b389f720d72beb02594fd60fdc4a8ca62ab4.exe	33
PID 2184 wrote to memory of 808	2184	46a67cdc899f61ccb6324d187d56b389f720d72beb02594fd60fdc4a8ca62ab4.exe	35
PID 2184 wrote to memory of 808	2184	46a67cdc899f61ccb6324d187d56b389f720d72beb02594fd60fdc4a8ca62ab4.exe	35
PID 2184 wrote to memory of 808	2184	46a67cdc899f61ccb6324d187d56b389f720d72beb02594fd60fdc4a8ca62ab4.exe	35
PID 2184 wrote to memory of 3052	2184	46a67cdc899f61ccb6324d187d56b389f720d72beb02594fd60fdc4a8ca62ab4.exe	37
PID 2184 wrote to memory of 3052	2184	46a67cdc899f61ccb6324d187d56b389f720d72beb02594fd60fdc4a8ca62ab4.exe	37
PID 2184 wrote to memory of 3052	2184	46a67cdc899f61ccb6324d187d56b389f720d72beb02594fd60fdc4a8ca62ab4.exe	37
PID 2184 wrote to memory of 2060	2184	46a67cdc899f61ccb6324d187d56b389f720d72beb02594fd60fdc4a8ca62ab4.exe	39
PID 2184 wrote to memory of 2060	2184	46a67cdc899f61ccb6324d187d56b389f720d72beb02594fd60fdc4a8ca62ab4.exe	39
PID 2184 wrote to memory of 2060	2184	46a67cdc899f61ccb6324d187d56b389f720d72beb02594fd60fdc4a8ca62ab4.exe	39
PID 2184 wrote to memory of 1756	2184	46a67cdc899f61ccb6324d187d56b389f720d72beb02594fd60fdc4a8ca62ab4.exe	41
PID 2184 wrote to memory of 1756	2184	46a67cdc899f61ccb6324d187d56b389f720d72beb02594fd60fdc4a8ca62ab4.exe	41
PID 2184 wrote to memory of 1756	2184	46a67cdc899f61ccb6324d187d56b389f720d72beb02594fd60fdc4a8ca62ab4.exe	41
PID 2184 wrote to memory of 1976	2184	46a67cdc899f61ccb6324d187d56b389f720d72beb02594fd60fdc4a8ca62ab4.exe	43
PID 2184 wrote to memory of 1976	2184	46a67cdc899f61ccb6324d187d56b389f720d72beb02594fd60fdc4a8ca62ab4.exe	43
PID 2184 wrote to memory of 1976	2184	46a67cdc899f61ccb6324d187d56b389f720d72beb02594fd60fdc4a8ca62ab4.exe	43
PID 2184 wrote to memory of 2380	2184	46a67cdc899f61ccb6324d187d56b389f720d72beb02594fd60fdc4a8ca62ab4.exe	45
PID 2184 wrote to memory of 2380	2184	46a67cdc899f61ccb6324d187d56b389f720d72beb02594fd60fdc4a8ca62ab4.exe	45
PID 2184 wrote to memory of 2380	2184	46a67cdc899f61ccb6324d187d56b389f720d72beb02594fd60fdc4a8ca62ab4.exe	45
PID 2184 wrote to memory of 2136	2184	46a67cdc899f61ccb6324d187d56b389f720d72beb02594fd60fdc4a8ca62ab4.exe	47
PID 2184 wrote to memory of 2136	2184	46a67cdc899f61ccb6324d187d56b389f720d72beb02594fd60fdc4a8ca62ab4.exe	47
PID 2184 wrote to memory of 2136	2184	46a67cdc899f61ccb6324d187d56b389f720d72beb02594fd60fdc4a8ca62ab4.exe	47
PID 2184 wrote to memory of 1856	2184	46a67cdc899f61ccb6324d187d56b389f720d72beb02594fd60fdc4a8ca62ab4.exe	49
PID 2184 wrote to memory of 1856	2184	46a67cdc899f61ccb6324d187d56b389f720d72beb02594fd60fdc4a8ca62ab4.exe	49
PID 2184 wrote to memory of 1856	2184	46a67cdc899f61ccb6324d187d56b389f720d72beb02594fd60fdc4a8ca62ab4.exe	49
PID 2184 wrote to memory of 1708	2184	46a67cdc899f61ccb6324d187d56b389f720d72beb02594fd60fdc4a8ca62ab4.exe	51
PID 2184 wrote to memory of 1708	2184	46a67cdc899f61ccb6324d187d56b389f720d72beb02594fd60fdc4a8ca62ab4.exe	51
PID 2184 wrote to memory of 1708	2184	46a67cdc899f61ccb6324d187d56b389f720d72beb02594fd60fdc4a8ca62ab4.exe	51
PID 2184 wrote to memory of 3064	2184	46a67cdc899f61ccb6324d187d56b389f720d72beb02594fd60fdc4a8ca62ab4.exe	53
PID 2184 wrote to memory of 3064	2184	46a67cdc899f61ccb6324d187d56b389f720d72beb02594fd60fdc4a8ca62ab4.exe	53
PID 2184 wrote to memory of 3064	2184	46a67cdc899f61ccb6324d187d56b389f720d72beb02594fd60fdc4a8ca62ab4.exe	53
PID 3064 wrote to memory of 2320	3064	cmd.exe	55
PID 3064 wrote to memory of 2320	3064	cmd.exe	55
PID 3064 wrote to memory of 2320	3064	cmd.exe	55

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2740	attrib.exe

C:\Users\Admin\AppData\Local\Temp\46a67cdc899f61ccb6324d187d56b389f720d72beb02594fd60fdc4a8ca62ab4.exe
"C:\Users\Admin\AppData\Local\Temp\46a67cdc899f61ccb6324d187d56b389f720d72beb02594fd60fdc4a8ca62ab4.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2184
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2160
- C:\Windows\system32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\46a67cdc899f61ccb6324d187d56b389f720d72beb02594fd60fdc4a8ca62ab4.exe"
  2⤵
  - Views/modifies file attributes
  PID:2740
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\46a67cdc899f61ccb6324d187d56b389f720d72beb02594fd60fdc4a8ca62ab4.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:808
- 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:3052
- 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:2060
- 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:1756
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1976
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:2380
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:2136
- 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:1856
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:1708
- C:\Windows\system32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\46a67cdc899f61ccb6324d187d56b389f720d72beb02594fd60fdc4a8ca62ab4.exe" && pause
  2⤵
  - Deletes itself
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:3064
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:2320

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
ee58250656cc22a04a716149065ee4f9

SHA1
a59b1586e540cfaa3740dffa4ffa4ae05dd3656f

SHA256
527b9934b9b1c769d7852f96611dd167c86e1b566e567a6cd1bd3648406ad041

SHA512
8b524af38099a3f165cfd832aa97137bf57bc9ead338599ac4ec8ab4991374158569007ecbae751109e985715a2c17dc30278ba307f26d26bc6a20f3a8f83230

Download Submit
memory/808-7-0x000000001B660000-0x000000001B942000-memory.dmp

Filesize
2.9MB

Download
memory/808-8-0x00000000022C0000-0x00000000022C8000-memory.dmp

Filesize
32KB

Download
memory/1856-42-0x0000000002790000-0x0000000002798000-memory.dmp

Filesize
32KB

Download
memory/2184-0-0x000007FEF5D33000-0x000007FEF5D34000-memory.dmp

Filesize
4KB

Download
memory/2184-1-0x00000000003D0000-0x0000000000410000-memory.dmp

Filesize
256KB

Download
memory/2184-2-0x000007FEF5D30000-0x000007FEF671C000-memory.dmp

Filesize
9.9MB

Download
memory/2184-46-0x000007FEF5D30000-0x000007FEF671C000-memory.dmp

Filesize
9.9MB

Download
memory/3052-14-0x000000001B4C0000-0x000000001B7A2000-memory.dmp

Filesize
2.9MB

Download
memory/3052-15-0x0000000002250000-0x0000000002258000-memory.dmp

Filesize
32KB

Download