umbral | 6681cb73deb0effc4f44f704c6bddb07e98c1f8da4c8478cca7ddd49abdb0c3f

Analysis

max time kernel
104s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20250314-en
resource tags

arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
submitted
22/03/2025, 06:08

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General

Target

193e069cb0734f2f4107d4c1fbb7f3b22d8783932eaa405bb7a0e52cb86fcfe1.exe
Size

229KB
MD5

dfaf5dade27d5e1c2d8db9f7ec2a41dc
SHA1

725ea0f0b95e8d4e1357845b5f85ec36e87f799f
SHA256

193e069cb0734f2f4107d4c1fbb7f3b22d8783932eaa405bb7a0e52cb86fcfe1
SHA512

bba10375b69ca847c2f0a6249fb52b46ddd441cb3406e70118b99b6ad7fcae4dc49bbad9406e14f057359e732574d5bdc0cf1de324fefa23696ac65d6962edfe
SSDEEP

6144:9loZMprIkd8g+EtXHkv/iD4iXptbhS6FgAxDeebVfBb8e1m3oi:foZCL+EP8iXptbhS6FgAxDeebVxa

Score

10^/10

umbral execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral4/memory/1752-1-0x00000230A63F0000-0x00000230A6430000-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 3 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
1444	powershell.exe
5324	powershell.exe
4712	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

Legitimate hosting services abused for malware hosting/C2 1 TTPs 1 IoCs

Web Service

T1102

flow	ioc
25	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
11	ip-api.com

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
4144	wmic.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1444	powershell.exe
1444	powershell.exe
5324	powershell.exe
5324	powershell.exe
4712	powershell.exe
4712	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1752	193e069cb0734f2f4107d4c1fbb7f3b22d8783932eaa405bb7a0e52cb86fcfe1.exe
Token: SeDebugPrivilege	1444	powershell.exe
Token: SeDebugPrivilege	5324	powershell.exe
Token: SeIncreaseQuotaPrivilege	5600	wmic.exe
Token: SeSecurityPrivilege	5600	wmic.exe
Token: SeTakeOwnershipPrivilege	5600	wmic.exe
Token: SeLoadDriverPrivilege	5600	wmic.exe
Token: SeSystemProfilePrivilege	5600	wmic.exe
Token: SeSystemtimePrivilege	5600	wmic.exe
Token: SeProfSingleProcessPrivilege	5600	wmic.exe
Token: SeIncBasePriorityPrivilege	5600	wmic.exe
Token: SeCreatePagefilePrivilege	5600	wmic.exe
Token: SeBackupPrivilege	5600	wmic.exe
Token: SeRestorePrivilege	5600	wmic.exe
Token: SeShutdownPrivilege	5600	wmic.exe
Token: SeDebugPrivilege	5600	wmic.exe
Token: SeSystemEnvironmentPrivilege	5600	wmic.exe
Token: SeRemoteShutdownPrivilege	5600	wmic.exe
Token: SeUndockPrivilege	5600	wmic.exe
Token: SeManageVolumePrivilege	5600	wmic.exe
Token: 33	5600	wmic.exe
Token: 34	5600	wmic.exe
Token: 35	5600	wmic.exe
Token: 36	5600	wmic.exe
Token: SeIncreaseQuotaPrivilege	5600	wmic.exe
Token: SeSecurityPrivilege	5600	wmic.exe
Token: SeTakeOwnershipPrivilege	5600	wmic.exe
Token: SeLoadDriverPrivilege	5600	wmic.exe
Token: SeSystemProfilePrivilege	5600	wmic.exe
Token: SeSystemtimePrivilege	5600	wmic.exe
Token: SeProfSingleProcessPrivilege	5600	wmic.exe
Token: SeIncBasePriorityPrivilege	5600	wmic.exe
Token: SeCreatePagefilePrivilege	5600	wmic.exe
Token: SeBackupPrivilege	5600	wmic.exe
Token: SeRestorePrivilege	5600	wmic.exe
Token: SeShutdownPrivilege	5600	wmic.exe
Token: SeDebugPrivilege	5600	wmic.exe
Token: SeSystemEnvironmentPrivilege	5600	wmic.exe
Token: SeRemoteShutdownPrivilege	5600	wmic.exe
Token: SeUndockPrivilege	5600	wmic.exe
Token: SeManageVolumePrivilege	5600	wmic.exe
Token: 33	5600	wmic.exe
Token: 34	5600	wmic.exe
Token: 35	5600	wmic.exe
Token: 36	5600	wmic.exe
Token: SeIncreaseQuotaPrivilege	4380	wmic.exe
Token: SeSecurityPrivilege	4380	wmic.exe
Token: SeTakeOwnershipPrivilege	4380	wmic.exe
Token: SeLoadDriverPrivilege	4380	wmic.exe
Token: SeSystemProfilePrivilege	4380	wmic.exe
Token: SeSystemtimePrivilege	4380	wmic.exe
Token: SeProfSingleProcessPrivilege	4380	wmic.exe
Token: SeIncBasePriorityPrivilege	4380	wmic.exe
Token: SeCreatePagefilePrivilege	4380	wmic.exe
Token: SeBackupPrivilege	4380	wmic.exe
Token: SeRestorePrivilege	4380	wmic.exe
Token: SeShutdownPrivilege	4380	wmic.exe
Token: SeDebugPrivilege	4380	wmic.exe
Token: SeSystemEnvironmentPrivilege	4380	wmic.exe
Token: SeRemoteShutdownPrivilege	4380	wmic.exe
Token: SeUndockPrivilege	4380	wmic.exe
Token: SeManageVolumePrivilege	4380	wmic.exe
Token: 33	4380	wmic.exe
Token: 34	4380	wmic.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 1752 wrote to memory of 1444	1752	193e069cb0734f2f4107d4c1fbb7f3b22d8783932eaa405bb7a0e52cb86fcfe1.exe	88
PID 1752 wrote to memory of 1444	1752	193e069cb0734f2f4107d4c1fbb7f3b22d8783932eaa405bb7a0e52cb86fcfe1.exe	88
PID 1752 wrote to memory of 5324	1752	193e069cb0734f2f4107d4c1fbb7f3b22d8783932eaa405bb7a0e52cb86fcfe1.exe	90
PID 1752 wrote to memory of 5324	1752	193e069cb0734f2f4107d4c1fbb7f3b22d8783932eaa405bb7a0e52cb86fcfe1.exe	90
PID 1752 wrote to memory of 5600	1752	193e069cb0734f2f4107d4c1fbb7f3b22d8783932eaa405bb7a0e52cb86fcfe1.exe	92
PID 1752 wrote to memory of 5600	1752	193e069cb0734f2f4107d4c1fbb7f3b22d8783932eaa405bb7a0e52cb86fcfe1.exe	92
PID 1752 wrote to memory of 4380	1752	193e069cb0734f2f4107d4c1fbb7f3b22d8783932eaa405bb7a0e52cb86fcfe1.exe	95
PID 1752 wrote to memory of 4380	1752	193e069cb0734f2f4107d4c1fbb7f3b22d8783932eaa405bb7a0e52cb86fcfe1.exe	95
PID 1752 wrote to memory of 5332	1752	193e069cb0734f2f4107d4c1fbb7f3b22d8783932eaa405bb7a0e52cb86fcfe1.exe	97
PID 1752 wrote to memory of 5332	1752	193e069cb0734f2f4107d4c1fbb7f3b22d8783932eaa405bb7a0e52cb86fcfe1.exe	97
PID 1752 wrote to memory of 4712	1752	193e069cb0734f2f4107d4c1fbb7f3b22d8783932eaa405bb7a0e52cb86fcfe1.exe	99
PID 1752 wrote to memory of 4712	1752	193e069cb0734f2f4107d4c1fbb7f3b22d8783932eaa405bb7a0e52cb86fcfe1.exe	99
PID 1752 wrote to memory of 4144	1752	193e069cb0734f2f4107d4c1fbb7f3b22d8783932eaa405bb7a0e52cb86fcfe1.exe	101
PID 1752 wrote to memory of 4144	1752	193e069cb0734f2f4107d4c1fbb7f3b22d8783932eaa405bb7a0e52cb86fcfe1.exe	101

C:\Users\Admin\AppData\Local\Temp\193e069cb0734f2f4107d4c1fbb7f3b22d8783932eaa405bb7a0e52cb86fcfe1.exe
"C:\Users\Admin\AppData\Local\Temp\193e069cb0734f2f4107d4c1fbb7f3b22d8783932eaa405bb7a0e52cb86fcfe1.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1752
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\193e069cb0734f2f4107d4c1fbb7f3b22d8783932eaa405bb7a0e52cb86fcfe1.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1444
- 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:5324
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:5600
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:4380
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:5332
- 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:4712
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:4144

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

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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
efa4168b73a5e8ae56d49bcac4d67861

SHA1
b3fe6b2d9fc05ad7892a2c8b96914764336b3067

SHA256
7aab157fba3a543647a38cc8729ffb962a58cc2093d94566c9e68ff73d134dca

SHA512
a1f305eac9c73c951f22e76f3904c1c6bb518b12d8a74bbea544c845f3d592e7915ec47d6531a3a4e669f6ab12311f3a632ff47a68f36370111d1c82cf8b6e99

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\Temp\__PSScriptPolicyTest_c2nes3nn.nxw.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1444-3-0x00007FFA84010000-0x00007FFA84AD1000-memory.dmp

Filesize
10.8MB

Download
memory/1444-13-0x00000214DC900000-0x00000214DC922000-memory.dmp

Filesize
136KB

Download
memory/1444-14-0x00007FFA84010000-0x00007FFA84AD1000-memory.dmp

Filesize
10.8MB

Download
memory/1444-15-0x00007FFA84010000-0x00007FFA84AD1000-memory.dmp

Filesize
10.8MB

Download
memory/1444-18-0x00007FFA84010000-0x00007FFA84AD1000-memory.dmp

Filesize
10.8MB

Download
memory/1752-31-0x00000230A6A80000-0x00000230A6AD0000-memory.dmp

Filesize
320KB

Download
memory/1752-2-0x00007FFA84010000-0x00007FFA84AD1000-memory.dmp

Filesize
10.8MB

Download
memory/1752-32-0x00000230C0D20000-0x00000230C0D96000-memory.dmp

Filesize
472KB

Download
memory/1752-1-0x00000230A63F0000-0x00000230A6430000-memory.dmp

Filesize
256KB

Download
memory/1752-33-0x00000230A6A50000-0x00000230A6A6E000-memory.dmp

Filesize
120KB

Download
memory/1752-41-0x00000230C0900000-0x00000230C0912000-memory.dmp

Filesize
72KB

Download
memory/1752-40-0x00000230A6AD0000-0x00000230A6ADA000-memory.dmp

Filesize
40KB

Download
memory/1752-0-0x00007FFA84013000-0x00007FFA84015000-memory.dmp

Filesize
8KB

Download
memory/1752-55-0x00007FFA84013000-0x00007FFA84015000-memory.dmp

Filesize
8KB

Download
memory/1752-56-0x00007FFA84010000-0x00007FFA84AD1000-memory.dmp

Filesize
10.8MB

Download
memory/1752-57-0x00000230C09D0000-0x00000230C0AD2000-memory.dmp

Filesize
1.0MB

Download
memory/1752-60-0x00000230C09D0000-0x00000230C0AD2000-memory.dmp

Filesize
1.0MB

Download
memory/1752-61-0x00007FFA84010000-0x00007FFA84AD1000-memory.dmp

Filesize
10.8MB

Download