umbral | 3462387ca29f4536b4c7828ed6bc6ff8bc86fed3eef2ea6cc8650ff7d437b04b

Analysis

max time kernel
97s
max time network
99s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
24-01-2025 23:09

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General

Target

3462387ca29f4536b4c7828ed6bc6ff8bc86fed3eef2ea6cc8650ff7d437b04b.exe
Size

231KB
MD5

ff3be52f8463ba850787640f729bd887
SHA1

b4218156fce36677545852910612eab5630dc291
SHA256

3462387ca29f4536b4c7828ed6bc6ff8bc86fed3eef2ea6cc8650ff7d437b04b
SHA512

69cdbaea4662a68cd03ff9611dee9593ac7262930252a600bd9da44e8e3b46a41578630e6eb23223157c1f93e5a19c64b3beac0ed4006b0e68f5af753d5ee471
SSDEEP

6144:xloZMffsXtioRkts/cnnK6cMltMMjw2xpaBPyAxVkElb8e1mhzLHi2:DoZdtlRk83MltMMjw2xpaBPyAxVkAMW2

Score

10^/10

umbral execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral2/memory/1384-1-0x00000240C3790000-0x00000240C37D0000-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
3800	powershell.exe
3336	powershell.exe
396	powershell.exe
1888	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	3462387ca29f4536b4c7828ed6bc6ff8bc86fed3eef2ea6cc8650ff7d437b04b.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
2868	wmic.exe

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
1384	3462387ca29f4536b4c7828ed6bc6ff8bc86fed3eef2ea6cc8650ff7d437b04b.exe
3800	powershell.exe
3800	powershell.exe
3336	powershell.exe
3336	powershell.exe
396	powershell.exe
396	powershell.exe
1720	powershell.exe
1720	powershell.exe
1888	powershell.exe
1888	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1384	3462387ca29f4536b4c7828ed6bc6ff8bc86fed3eef2ea6cc8650ff7d437b04b.exe
Token: SeIncreaseQuotaPrivilege	1796	wmic.exe
Token: SeSecurityPrivilege	1796	wmic.exe
Token: SeTakeOwnershipPrivilege	1796	wmic.exe
Token: SeLoadDriverPrivilege	1796	wmic.exe
Token: SeSystemProfilePrivilege	1796	wmic.exe
Token: SeSystemtimePrivilege	1796	wmic.exe
Token: SeProfSingleProcessPrivilege	1796	wmic.exe
Token: SeIncBasePriorityPrivilege	1796	wmic.exe
Token: SeCreatePagefilePrivilege	1796	wmic.exe
Token: SeBackupPrivilege	1796	wmic.exe
Token: SeRestorePrivilege	1796	wmic.exe
Token: SeShutdownPrivilege	1796	wmic.exe
Token: SeDebugPrivilege	1796	wmic.exe
Token: SeSystemEnvironmentPrivilege	1796	wmic.exe
Token: SeRemoteShutdownPrivilege	1796	wmic.exe
Token: SeUndockPrivilege	1796	wmic.exe
Token: SeManageVolumePrivilege	1796	wmic.exe
Token: 33	1796	wmic.exe
Token: 34	1796	wmic.exe
Token: 35	1796	wmic.exe
Token: 36	1796	wmic.exe
Token: SeIncreaseQuotaPrivilege	1796	wmic.exe
Token: SeSecurityPrivilege	1796	wmic.exe
Token: SeTakeOwnershipPrivilege	1796	wmic.exe
Token: SeLoadDriverPrivilege	1796	wmic.exe
Token: SeSystemProfilePrivilege	1796	wmic.exe
Token: SeSystemtimePrivilege	1796	wmic.exe
Token: SeProfSingleProcessPrivilege	1796	wmic.exe
Token: SeIncBasePriorityPrivilege	1796	wmic.exe
Token: SeCreatePagefilePrivilege	1796	wmic.exe
Token: SeBackupPrivilege	1796	wmic.exe
Token: SeRestorePrivilege	1796	wmic.exe
Token: SeShutdownPrivilege	1796	wmic.exe
Token: SeDebugPrivilege	1796	wmic.exe
Token: SeSystemEnvironmentPrivilege	1796	wmic.exe
Token: SeRemoteShutdownPrivilege	1796	wmic.exe
Token: SeUndockPrivilege	1796	wmic.exe
Token: SeManageVolumePrivilege	1796	wmic.exe
Token: 33	1796	wmic.exe
Token: 34	1796	wmic.exe
Token: 35	1796	wmic.exe
Token: 36	1796	wmic.exe
Token: SeDebugPrivilege	3800	powershell.exe
Token: SeDebugPrivilege	3336	powershell.exe
Token: SeDebugPrivilege	396	powershell.exe
Token: SeDebugPrivilege	1720	powershell.exe
Token: SeIncreaseQuotaPrivilege	1588	wmic.exe
Token: SeSecurityPrivilege	1588	wmic.exe
Token: SeTakeOwnershipPrivilege	1588	wmic.exe
Token: SeLoadDriverPrivilege	1588	wmic.exe
Token: SeSystemProfilePrivilege	1588	wmic.exe
Token: SeSystemtimePrivilege	1588	wmic.exe
Token: SeProfSingleProcessPrivilege	1588	wmic.exe
Token: SeIncBasePriorityPrivilege	1588	wmic.exe
Token: SeCreatePagefilePrivilege	1588	wmic.exe
Token: SeBackupPrivilege	1588	wmic.exe
Token: SeRestorePrivilege	1588	wmic.exe
Token: SeShutdownPrivilege	1588	wmic.exe
Token: SeDebugPrivilege	1588	wmic.exe
Token: SeSystemEnvironmentPrivilege	1588	wmic.exe
Token: SeRemoteShutdownPrivilege	1588	wmic.exe
Token: SeUndockPrivilege	1588	wmic.exe
Token: SeManageVolumePrivilege	1588	wmic.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 1384 wrote to memory of 1796	1384	3462387ca29f4536b4c7828ed6bc6ff8bc86fed3eef2ea6cc8650ff7d437b04b.exe	83
PID 1384 wrote to memory of 1796	1384	3462387ca29f4536b4c7828ed6bc6ff8bc86fed3eef2ea6cc8650ff7d437b04b.exe	83
PID 1384 wrote to memory of 3800	1384	3462387ca29f4536b4c7828ed6bc6ff8bc86fed3eef2ea6cc8650ff7d437b04b.exe	86
PID 1384 wrote to memory of 3800	1384	3462387ca29f4536b4c7828ed6bc6ff8bc86fed3eef2ea6cc8650ff7d437b04b.exe	86
PID 1384 wrote to memory of 3336	1384	3462387ca29f4536b4c7828ed6bc6ff8bc86fed3eef2ea6cc8650ff7d437b04b.exe	88
PID 1384 wrote to memory of 3336	1384	3462387ca29f4536b4c7828ed6bc6ff8bc86fed3eef2ea6cc8650ff7d437b04b.exe	88
PID 1384 wrote to memory of 396	1384	3462387ca29f4536b4c7828ed6bc6ff8bc86fed3eef2ea6cc8650ff7d437b04b.exe	90
PID 1384 wrote to memory of 396	1384	3462387ca29f4536b4c7828ed6bc6ff8bc86fed3eef2ea6cc8650ff7d437b04b.exe	90
PID 1384 wrote to memory of 1720	1384	3462387ca29f4536b4c7828ed6bc6ff8bc86fed3eef2ea6cc8650ff7d437b04b.exe	92
PID 1384 wrote to memory of 1720	1384	3462387ca29f4536b4c7828ed6bc6ff8bc86fed3eef2ea6cc8650ff7d437b04b.exe	92
PID 1384 wrote to memory of 1588	1384	3462387ca29f4536b4c7828ed6bc6ff8bc86fed3eef2ea6cc8650ff7d437b04b.exe	94
PID 1384 wrote to memory of 1588	1384	3462387ca29f4536b4c7828ed6bc6ff8bc86fed3eef2ea6cc8650ff7d437b04b.exe	94
PID 1384 wrote to memory of 640	1384	3462387ca29f4536b4c7828ed6bc6ff8bc86fed3eef2ea6cc8650ff7d437b04b.exe	96
PID 1384 wrote to memory of 640	1384	3462387ca29f4536b4c7828ed6bc6ff8bc86fed3eef2ea6cc8650ff7d437b04b.exe	96
PID 1384 wrote to memory of 3240	1384	3462387ca29f4536b4c7828ed6bc6ff8bc86fed3eef2ea6cc8650ff7d437b04b.exe	98
PID 1384 wrote to memory of 3240	1384	3462387ca29f4536b4c7828ed6bc6ff8bc86fed3eef2ea6cc8650ff7d437b04b.exe	98
PID 1384 wrote to memory of 1888	1384	3462387ca29f4536b4c7828ed6bc6ff8bc86fed3eef2ea6cc8650ff7d437b04b.exe	100
PID 1384 wrote to memory of 1888	1384	3462387ca29f4536b4c7828ed6bc6ff8bc86fed3eef2ea6cc8650ff7d437b04b.exe	100
PID 1384 wrote to memory of 2868	1384	3462387ca29f4536b4c7828ed6bc6ff8bc86fed3eef2ea6cc8650ff7d437b04b.exe	102
PID 1384 wrote to memory of 2868	1384	3462387ca29f4536b4c7828ed6bc6ff8bc86fed3eef2ea6cc8650ff7d437b04b.exe	102

C:\Users\Admin\AppData\Local\Temp\3462387ca29f4536b4c7828ed6bc6ff8bc86fed3eef2ea6cc8650ff7d437b04b.exe
"C:\Users\Admin\AppData\Local\Temp\3462387ca29f4536b4c7828ed6bc6ff8bc86fed3eef2ea6cc8650ff7d437b04b.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1384
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1796
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\3462387ca29f4536b4c7828ed6bc6ff8bc86fed3eef2ea6cc8650ff7d437b04b.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3800
- 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:3336
- 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:396
- 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:1720
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1588
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:640
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:3240
- 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:1888
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:2868

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

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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
77d622bb1a5b250869a3238b9bc1402b

SHA1
d47f4003c2554b9dfc4c16f22460b331886b191b

SHA256
f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb

SHA512
d6789b5499f23c9035375a102271e17a8a82e57d6f5312fa24242e08a83efdeb8becb7622f55c4cf1b89c7d864b445df11f4d994cf7e2f87a900535bcca12fd9

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

Filesize
948B

MD5
74a6b79d36b4aae8b027a218bc6e1af7

SHA1
0350e46c1df6934903c4820a00b0bc4721779e5f

SHA256
60c64f6803d7ad1408d0a8628100470859b16ef332d5f1bd8bb2debe51251d04

SHA512
60e71435a9a23f4c144d641844f4182ddc9aa4ccd3e99232149a187112dce96458aab9587e9fea46f5dc5a52f5ca758969a04657a2b5b10241d3e4554f7c85e0

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

Filesize
1KB

MD5
548dd08570d121a65e82abb7171cae1c

SHA1
1a1b5084b3a78f3acd0d811cc79dbcac121217ab

SHA256
cdf17b8532ebcebac3cfe23954a30aa32edd268d040da79c82687e4ccb044adc

SHA512
37b98b09178b51eec9599af90d027d2f1028202efc1633047e16e41f1a95610984af5620baac07db085ccfcb96942aafffad17aa1f44f63233e83869dc9f697b

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

Filesize
1KB

MD5
6317adf4fbc43ea2fd68861fafd57155

SHA1
6b87c718893c83c6eed2767e8d9cbc6443e31913

SHA256
c1ead17eef37b4b461cedc276504a441489e819c7f943037f2001966aeec90af

SHA512
17229aae8622e4bfc3caaac55684f7d4ccd3162af5919c851b1d8ac4060b6bb7b75044ecee116523d05acb55197dcb60780958f629450edef386f1e6f65f49f0

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_0sqjfhqe.5iw.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1384-71-0x00000240DE090000-0x00000240DE09A000-memory.dmp

Filesize
40KB

Download
memory/1384-34-0x00000240C57D0000-0x00000240C57EE000-memory.dmp

Filesize
120KB

Download
memory/1384-92-0x00007FFD8F050000-0x00007FFD8FB11000-memory.dmp

Filesize
10.8MB

Download
memory/1384-72-0x00000240DE0C0000-0x00000240DE0D2000-memory.dmp

Filesize
72KB

Download
memory/1384-2-0x00007FFD8F050000-0x00007FFD8FB11000-memory.dmp

Filesize
10.8MB

Download
memory/1384-32-0x00000240DDEC0000-0x00000240DDF36000-memory.dmp

Filesize
472KB

Download
memory/1384-33-0x00000240DDF40000-0x00000240DDF90000-memory.dmp

Filesize
320KB

Download
memory/1384-0-0x00007FFD8F053000-0x00007FFD8F055000-memory.dmp

Filesize
8KB

Download
memory/1384-1-0x00000240C3790000-0x00000240C37D0000-memory.dmp

Filesize
256KB

Download
memory/3800-15-0x00007FFD8F050000-0x00007FFD8FB11000-memory.dmp

Filesize
10.8MB

Download
memory/3800-14-0x00007FFD8F050000-0x00007FFD8FB11000-memory.dmp

Filesize
10.8MB

Download
memory/3800-8-0x0000024C26AE0000-0x0000024C26B02000-memory.dmp

Filesize
136KB

Download
memory/3800-13-0x00007FFD8F050000-0x00007FFD8FB11000-memory.dmp

Filesize
10.8MB

Download
memory/3800-18-0x00007FFD8F050000-0x00007FFD8FB11000-memory.dmp

Filesize
10.8MB

Download