umbral | 3462387ca29f4536b4c7828ed6bc6ff8bc86fed3eef2ea6cc8650ff7d437b04b

Analysis

max time kernel
16s
max time network
17s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-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
behavioral1/memory/2860-1-0x0000000000080000-0x00000000000C0000-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
2612	powershell.exe
2180	powershell.exe
2148	powershell.exe
2400	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
6	ip-api.com

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
3028	wmic.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2860	3462387ca29f4536b4c7828ed6bc6ff8bc86fed3eef2ea6cc8650ff7d437b04b.exe
2612	powershell.exe
2180	powershell.exe
2148	powershell.exe
1920	powershell.exe
2400	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2860	3462387ca29f4536b4c7828ed6bc6ff8bc86fed3eef2ea6cc8650ff7d437b04b.exe
Token: SeIncreaseQuotaPrivilege	2780	wmic.exe
Token: SeSecurityPrivilege	2780	wmic.exe
Token: SeTakeOwnershipPrivilege	2780	wmic.exe
Token: SeLoadDriverPrivilege	2780	wmic.exe
Token: SeSystemProfilePrivilege	2780	wmic.exe
Token: SeSystemtimePrivilege	2780	wmic.exe
Token: SeProfSingleProcessPrivilege	2780	wmic.exe
Token: SeIncBasePriorityPrivilege	2780	wmic.exe
Token: SeCreatePagefilePrivilege	2780	wmic.exe
Token: SeBackupPrivilege	2780	wmic.exe
Token: SeRestorePrivilege	2780	wmic.exe
Token: SeShutdownPrivilege	2780	wmic.exe
Token: SeDebugPrivilege	2780	wmic.exe
Token: SeSystemEnvironmentPrivilege	2780	wmic.exe
Token: SeRemoteShutdownPrivilege	2780	wmic.exe
Token: SeUndockPrivilege	2780	wmic.exe
Token: SeManageVolumePrivilege	2780	wmic.exe
Token: 33	2780	wmic.exe
Token: 34	2780	wmic.exe
Token: 35	2780	wmic.exe
Token: SeIncreaseQuotaPrivilege	2780	wmic.exe
Token: SeSecurityPrivilege	2780	wmic.exe
Token: SeTakeOwnershipPrivilege	2780	wmic.exe
Token: SeLoadDriverPrivilege	2780	wmic.exe
Token: SeSystemProfilePrivilege	2780	wmic.exe
Token: SeSystemtimePrivilege	2780	wmic.exe
Token: SeProfSingleProcessPrivilege	2780	wmic.exe
Token: SeIncBasePriorityPrivilege	2780	wmic.exe
Token: SeCreatePagefilePrivilege	2780	wmic.exe
Token: SeBackupPrivilege	2780	wmic.exe
Token: SeRestorePrivilege	2780	wmic.exe
Token: SeShutdownPrivilege	2780	wmic.exe
Token: SeDebugPrivilege	2780	wmic.exe
Token: SeSystemEnvironmentPrivilege	2780	wmic.exe
Token: SeRemoteShutdownPrivilege	2780	wmic.exe
Token: SeUndockPrivilege	2780	wmic.exe
Token: SeManageVolumePrivilege	2780	wmic.exe
Token: 33	2780	wmic.exe
Token: 34	2780	wmic.exe
Token: 35	2780	wmic.exe
Token: SeDebugPrivilege	2612	powershell.exe
Token: SeDebugPrivilege	2180	powershell.exe
Token: SeDebugPrivilege	2148	powershell.exe
Token: SeDebugPrivilege	1920	powershell.exe
Token: SeIncreaseQuotaPrivilege	1028	wmic.exe
Token: SeSecurityPrivilege	1028	wmic.exe
Token: SeTakeOwnershipPrivilege	1028	wmic.exe
Token: SeLoadDriverPrivilege	1028	wmic.exe
Token: SeSystemProfilePrivilege	1028	wmic.exe
Token: SeSystemtimePrivilege	1028	wmic.exe
Token: SeProfSingleProcessPrivilege	1028	wmic.exe
Token: SeIncBasePriorityPrivilege	1028	wmic.exe
Token: SeCreatePagefilePrivilege	1028	wmic.exe
Token: SeBackupPrivilege	1028	wmic.exe
Token: SeRestorePrivilege	1028	wmic.exe
Token: SeShutdownPrivilege	1028	wmic.exe
Token: SeDebugPrivilege	1028	wmic.exe
Token: SeSystemEnvironmentPrivilege	1028	wmic.exe
Token: SeRemoteShutdownPrivilege	1028	wmic.exe
Token: SeUndockPrivilege	1028	wmic.exe
Token: SeManageVolumePrivilege	1028	wmic.exe
Token: 33	1028	wmic.exe
Token: 34	1028	wmic.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2860 wrote to memory of 2780	2860	3462387ca29f4536b4c7828ed6bc6ff8bc86fed3eef2ea6cc8650ff7d437b04b.exe	31
PID 2860 wrote to memory of 2780	2860	3462387ca29f4536b4c7828ed6bc6ff8bc86fed3eef2ea6cc8650ff7d437b04b.exe	31
PID 2860 wrote to memory of 2780	2860	3462387ca29f4536b4c7828ed6bc6ff8bc86fed3eef2ea6cc8650ff7d437b04b.exe	31
PID 2860 wrote to memory of 2612	2860	3462387ca29f4536b4c7828ed6bc6ff8bc86fed3eef2ea6cc8650ff7d437b04b.exe	34
PID 2860 wrote to memory of 2612	2860	3462387ca29f4536b4c7828ed6bc6ff8bc86fed3eef2ea6cc8650ff7d437b04b.exe	34
PID 2860 wrote to memory of 2612	2860	3462387ca29f4536b4c7828ed6bc6ff8bc86fed3eef2ea6cc8650ff7d437b04b.exe	34
PID 2860 wrote to memory of 2180	2860	3462387ca29f4536b4c7828ed6bc6ff8bc86fed3eef2ea6cc8650ff7d437b04b.exe	36
PID 2860 wrote to memory of 2180	2860	3462387ca29f4536b4c7828ed6bc6ff8bc86fed3eef2ea6cc8650ff7d437b04b.exe	36
PID 2860 wrote to memory of 2180	2860	3462387ca29f4536b4c7828ed6bc6ff8bc86fed3eef2ea6cc8650ff7d437b04b.exe	36
PID 2860 wrote to memory of 2148	2860	3462387ca29f4536b4c7828ed6bc6ff8bc86fed3eef2ea6cc8650ff7d437b04b.exe	38
PID 2860 wrote to memory of 2148	2860	3462387ca29f4536b4c7828ed6bc6ff8bc86fed3eef2ea6cc8650ff7d437b04b.exe	38
PID 2860 wrote to memory of 2148	2860	3462387ca29f4536b4c7828ed6bc6ff8bc86fed3eef2ea6cc8650ff7d437b04b.exe	38
PID 2860 wrote to memory of 1920	2860	3462387ca29f4536b4c7828ed6bc6ff8bc86fed3eef2ea6cc8650ff7d437b04b.exe	40
PID 2860 wrote to memory of 1920	2860	3462387ca29f4536b4c7828ed6bc6ff8bc86fed3eef2ea6cc8650ff7d437b04b.exe	40
PID 2860 wrote to memory of 1920	2860	3462387ca29f4536b4c7828ed6bc6ff8bc86fed3eef2ea6cc8650ff7d437b04b.exe	40
PID 2860 wrote to memory of 1028	2860	3462387ca29f4536b4c7828ed6bc6ff8bc86fed3eef2ea6cc8650ff7d437b04b.exe	42
PID 2860 wrote to memory of 1028	2860	3462387ca29f4536b4c7828ed6bc6ff8bc86fed3eef2ea6cc8650ff7d437b04b.exe	42
PID 2860 wrote to memory of 1028	2860	3462387ca29f4536b4c7828ed6bc6ff8bc86fed3eef2ea6cc8650ff7d437b04b.exe	42
PID 2860 wrote to memory of 2884	2860	3462387ca29f4536b4c7828ed6bc6ff8bc86fed3eef2ea6cc8650ff7d437b04b.exe	44
PID 2860 wrote to memory of 2884	2860	3462387ca29f4536b4c7828ed6bc6ff8bc86fed3eef2ea6cc8650ff7d437b04b.exe	44
PID 2860 wrote to memory of 2884	2860	3462387ca29f4536b4c7828ed6bc6ff8bc86fed3eef2ea6cc8650ff7d437b04b.exe	44
PID 2860 wrote to memory of 2028	2860	3462387ca29f4536b4c7828ed6bc6ff8bc86fed3eef2ea6cc8650ff7d437b04b.exe	46
PID 2860 wrote to memory of 2028	2860	3462387ca29f4536b4c7828ed6bc6ff8bc86fed3eef2ea6cc8650ff7d437b04b.exe	46
PID 2860 wrote to memory of 2028	2860	3462387ca29f4536b4c7828ed6bc6ff8bc86fed3eef2ea6cc8650ff7d437b04b.exe	46
PID 2860 wrote to memory of 2400	2860	3462387ca29f4536b4c7828ed6bc6ff8bc86fed3eef2ea6cc8650ff7d437b04b.exe	48
PID 2860 wrote to memory of 2400	2860	3462387ca29f4536b4c7828ed6bc6ff8bc86fed3eef2ea6cc8650ff7d437b04b.exe	48
PID 2860 wrote to memory of 2400	2860	3462387ca29f4536b4c7828ed6bc6ff8bc86fed3eef2ea6cc8650ff7d437b04b.exe	48
PID 2860 wrote to memory of 3028	2860	3462387ca29f4536b4c7828ed6bc6ff8bc86fed3eef2ea6cc8650ff7d437b04b.exe	50
PID 2860 wrote to memory of 3028	2860	3462387ca29f4536b4c7828ed6bc6ff8bc86fed3eef2ea6cc8650ff7d437b04b.exe	50
PID 2860 wrote to memory of 3028	2860	3462387ca29f4536b4c7828ed6bc6ff8bc86fed3eef2ea6cc8650ff7d437b04b.exe	50

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:2860
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2780
- 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:2612
- 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:2180
- 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:2148
- 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:1920
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1028
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:2884
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:2028
- 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:2400
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:3028

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\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

Filesize
7KB

MD5
7da33424972c98b167fda448d586aaae

SHA1
256f19bad61d36c41a2005af40296bb0b5b87c5c

SHA256
15fdd8f7e9c61bce228cd898bab4b29680e05e7b4eb5453aca37bd0b007b9015

SHA512
4189c6f2beec0cc2b8a2d89b7c28be765522e540480ff38e5e76017ebccab7dffdd14144649a261ded6b295e446cd329c7991a4be45ad67b385646bdf41c0059

Download Submit
memory/2180-17-0x0000000001F70000-0x0000000001F78000-memory.dmp

Filesize
32KB

Download
memory/2180-16-0x000000001B520000-0x000000001B802000-memory.dmp

Filesize
2.9MB

Download
memory/2400-41-0x0000000001F00000-0x0000000001F08000-memory.dmp

Filesize
32KB

Download
memory/2612-10-0x0000000002890000-0x0000000002898000-memory.dmp

Filesize
32KB

Download
memory/2612-9-0x000000001B590000-0x000000001B872000-memory.dmp

Filesize
2.9MB

Download
memory/2860-0-0x000007FEF65E3000-0x000007FEF65E4000-memory.dmp

Filesize
4KB

Download
memory/2860-4-0x000007FEF65E0000-0x000007FEF6FCC000-memory.dmp

Filesize
9.9MB

Download
memory/2860-3-0x000007FEF65E3000-0x000007FEF65E4000-memory.dmp

Filesize
4KB

Download
memory/2860-2-0x000007FEF65E0000-0x000007FEF6FCC000-memory.dmp

Filesize
9.9MB

Download
memory/2860-1-0x0000000000080000-0x00000000000C0000-memory.dmp

Filesize
256KB

Download
memory/2860-45-0x000007FEF65E0000-0x000007FEF6FCC000-memory.dmp

Filesize
9.9MB

Download