umbral | 66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62

Analysis

max time kernel
17s
max time network
19s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
07-02-2025 01:03

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General

Target

66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe
Size

227KB
MD5

87d805618091e568a056c988e2c26cfa
SHA1

aedfd6340df353946e6a6b0be5b0f02c3bc69bd2
SHA256

66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62
SHA512

cace3d172fe91b7a971b5fdd64173fdc7a71ce8ca44b4af89a5ce1db9076e9e36614a3fa98305605f593ebcacc27aa0cb8b076a033f0693a5c7b93d0a98c255a
SSDEEP

6144:+loZM+rIkd8g+EtXHkv/iD4ZCaClZ8e1mU0o2i:ooZtL+EP8wDD0G

Score

10^/10

umbral discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral1/memory/2608-1-0x0000000000FE0000-0x0000000001020000-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
2908	powershell.exe
2892	powershell.exe
2788	powershell.exe
1972	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe

Deletes itself 1 IoCs

pid	Process
2404	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
2404	cmd.exe
2568	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
2204	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2568	PING.EXE

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2608	66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe
2908	powershell.exe
2892	powershell.exe
2788	powershell.exe
1748	powershell.exe
1972	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2608	66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe
Token: SeIncreaseQuotaPrivilege	1144	wmic.exe
Token: SeSecurityPrivilege	1144	wmic.exe
Token: SeTakeOwnershipPrivilege	1144	wmic.exe
Token: SeLoadDriverPrivilege	1144	wmic.exe
Token: SeSystemProfilePrivilege	1144	wmic.exe
Token: SeSystemtimePrivilege	1144	wmic.exe
Token: SeProfSingleProcessPrivilege	1144	wmic.exe
Token: SeIncBasePriorityPrivilege	1144	wmic.exe
Token: SeCreatePagefilePrivilege	1144	wmic.exe
Token: SeBackupPrivilege	1144	wmic.exe
Token: SeRestorePrivilege	1144	wmic.exe
Token: SeShutdownPrivilege	1144	wmic.exe
Token: SeDebugPrivilege	1144	wmic.exe
Token: SeSystemEnvironmentPrivilege	1144	wmic.exe
Token: SeRemoteShutdownPrivilege	1144	wmic.exe
Token: SeUndockPrivilege	1144	wmic.exe
Token: SeManageVolumePrivilege	1144	wmic.exe
Token: 33	1144	wmic.exe
Token: 34	1144	wmic.exe
Token: 35	1144	wmic.exe
Token: SeIncreaseQuotaPrivilege	1144	wmic.exe
Token: SeSecurityPrivilege	1144	wmic.exe
Token: SeTakeOwnershipPrivilege	1144	wmic.exe
Token: SeLoadDriverPrivilege	1144	wmic.exe
Token: SeSystemProfilePrivilege	1144	wmic.exe
Token: SeSystemtimePrivilege	1144	wmic.exe
Token: SeProfSingleProcessPrivilege	1144	wmic.exe
Token: SeIncBasePriorityPrivilege	1144	wmic.exe
Token: SeCreatePagefilePrivilege	1144	wmic.exe
Token: SeBackupPrivilege	1144	wmic.exe
Token: SeRestorePrivilege	1144	wmic.exe
Token: SeShutdownPrivilege	1144	wmic.exe
Token: SeDebugPrivilege	1144	wmic.exe
Token: SeSystemEnvironmentPrivilege	1144	wmic.exe
Token: SeRemoteShutdownPrivilege	1144	wmic.exe
Token: SeUndockPrivilege	1144	wmic.exe
Token: SeManageVolumePrivilege	1144	wmic.exe
Token: 33	1144	wmic.exe
Token: 34	1144	wmic.exe
Token: 35	1144	wmic.exe
Token: SeDebugPrivilege	2908	powershell.exe
Token: SeDebugPrivilege	2892	powershell.exe
Token: SeDebugPrivilege	2788	powershell.exe
Token: SeDebugPrivilege	1748	powershell.exe
Token: SeIncreaseQuotaPrivilege	1416	wmic.exe
Token: SeSecurityPrivilege	1416	wmic.exe
Token: SeTakeOwnershipPrivilege	1416	wmic.exe
Token: SeLoadDriverPrivilege	1416	wmic.exe
Token: SeSystemProfilePrivilege	1416	wmic.exe
Token: SeSystemtimePrivilege	1416	wmic.exe
Token: SeProfSingleProcessPrivilege	1416	wmic.exe
Token: SeIncBasePriorityPrivilege	1416	wmic.exe
Token: SeCreatePagefilePrivilege	1416	wmic.exe
Token: SeBackupPrivilege	1416	wmic.exe
Token: SeRestorePrivilege	1416	wmic.exe
Token: SeShutdownPrivilege	1416	wmic.exe
Token: SeDebugPrivilege	1416	wmic.exe
Token: SeSystemEnvironmentPrivilege	1416	wmic.exe
Token: SeRemoteShutdownPrivilege	1416	wmic.exe
Token: SeUndockPrivilege	1416	wmic.exe
Token: SeManageVolumePrivilege	1416	wmic.exe
Token: 33	1416	wmic.exe
Token: 34	1416	wmic.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 2608 wrote to memory of 1144	2608	66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe	29
PID 2608 wrote to memory of 1144	2608	66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe	29
PID 2608 wrote to memory of 1144	2608	66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe	29
PID 2608 wrote to memory of 2872	2608	66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe	32
PID 2608 wrote to memory of 2872	2608	66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe	32
PID 2608 wrote to memory of 2872	2608	66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe	32
PID 2608 wrote to memory of 2908	2608	66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe	34
PID 2608 wrote to memory of 2908	2608	66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe	34
PID 2608 wrote to memory of 2908	2608	66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe	34
PID 2608 wrote to memory of 2892	2608	66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe	36
PID 2608 wrote to memory of 2892	2608	66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe	36
PID 2608 wrote to memory of 2892	2608	66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe	36
PID 2608 wrote to memory of 2788	2608	66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe	38
PID 2608 wrote to memory of 2788	2608	66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe	38
PID 2608 wrote to memory of 2788	2608	66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe	38
PID 2608 wrote to memory of 1748	2608	66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe	40
PID 2608 wrote to memory of 1748	2608	66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe	40
PID 2608 wrote to memory of 1748	2608	66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe	40
PID 2608 wrote to memory of 1416	2608	66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe	42
PID 2608 wrote to memory of 1416	2608	66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe	42
PID 2608 wrote to memory of 1416	2608	66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe	42
PID 2608 wrote to memory of 2496	2608	66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe	44
PID 2608 wrote to memory of 2496	2608	66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe	44
PID 2608 wrote to memory of 2496	2608	66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe	44
PID 2608 wrote to memory of 1072	2608	66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe	46
PID 2608 wrote to memory of 1072	2608	66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe	46
PID 2608 wrote to memory of 1072	2608	66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe	46
PID 2608 wrote to memory of 1972	2608	66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe	48
PID 2608 wrote to memory of 1972	2608	66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe	48
PID 2608 wrote to memory of 1972	2608	66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe	48
PID 2608 wrote to memory of 2204	2608	66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe	50
PID 2608 wrote to memory of 2204	2608	66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe	50
PID 2608 wrote to memory of 2204	2608	66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe	50
PID 2608 wrote to memory of 2404	2608	66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe	52
PID 2608 wrote to memory of 2404	2608	66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe	52
PID 2608 wrote to memory of 2404	2608	66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe	52
PID 2404 wrote to memory of 2568	2404	cmd.exe	54
PID 2404 wrote to memory of 2568	2404	cmd.exe	54
PID 2404 wrote to memory of 2568	2404	cmd.exe	54

Views/modifies file attributes 1 TTPs 1 IoCs

defense_evasion

Hidden Files and Directories

T1564.001

pid	Process
2872	attrib.exe

C:\Users\Admin\AppData\Local\Temp\66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe
"C:\Users\Admin\AppData\Local\Temp\66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2608
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1144
- C:\Windows\system32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe"
  2⤵
  - Views/modifies file attributes
  PID:2872
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2908
- 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:2892
- 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:2788
- 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:1748
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1416
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:2496
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:1072
- 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:1972
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:2204
- C:\Windows\system32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\66ef2d1d3aabff55217dda6c03b1867a7ca8adaad5fc1b01d6e058651b450d62.exe" && pause
  2⤵
  - Deletes itself
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2404
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:2568

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
7a652b6bc51b771de305b0e0d4ae8ae3

SHA1
def88ab21663e75dee03807d22556ef1027739c0

SHA256
f42283ccca0ff9d4c660476c49dba94c3fa8bc9bc4f42b9c6776d952cbbde2b4

SHA512
98cc4d207391e0f39c6ca675d920fa93a2d67d74d0437dbf3b0adee7f075ff29ac17c3f7a4745c3cf60d0c72e50e2a5775c210932dfff1334b1fd7312b455ff5

Download Submit
memory/1972-48-0x0000000002410000-0x0000000002418000-memory.dmp

Filesize
32KB

Download
memory/2608-40-0x000007FEF5A93000-0x000007FEF5A94000-memory.dmp

Filesize
4KB

Download
memory/2608-1-0x0000000000FE0000-0x0000000001020000-memory.dmp

Filesize
256KB

Download
memory/2608-2-0x000007FEF5A90000-0x000007FEF647C000-memory.dmp

Filesize
9.9MB

Download
memory/2608-53-0x000007FEF5A90000-0x000007FEF647C000-memory.dmp

Filesize
9.9MB

Download
memory/2608-0-0x000007FEF5A93000-0x000007FEF5A94000-memory.dmp

Filesize
4KB

Download
memory/2608-41-0x000007FEF5A90000-0x000007FEF647C000-memory.dmp

Filesize
9.9MB

Download
memory/2892-14-0x000000001B3A0000-0x000000001B682000-memory.dmp

Filesize
2.9MB

Download
memory/2892-15-0x0000000002490000-0x0000000002498000-memory.dmp

Filesize
32KB

Download
memory/2908-8-0x00000000022A0000-0x00000000022A8000-memory.dmp

Filesize
32KB

Download
memory/2908-7-0x000000001B190000-0x000000001B472000-memory.dmp

Filesize
2.9MB

Download