umbral | 01fb336066beb7d69b8a498acd0c01a0f7a49fb1f3ddfe9e28d2cc628132110c

Resubmissions

25-01-2025 06:58

250125-hrxqxa1mhy 10

25-01-2025 06:55

250125-hpr3ms1max 10

Analysis

max time kernel
8s
max time network
10s
platform
windows11-21h2_x64
resource
win11-20241007-en
resource tags

arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system
submitted
25-01-2025 06:58

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

SU.exe
Size

229KB
MD5

05c943e8ae5c31ffe2dfd3eff82aa5c1
SHA1

6687440528a26ae933709e79ff486cb5727bb881
SHA256

01fb336066beb7d69b8a498acd0c01a0f7a49fb1f3ddfe9e28d2cc628132110c
SHA512

79e937aae114229690b11e43ced2a61886b40f57b91e04f24a6b3f6db0f2e2008dac1b44bba274fb75befcbb1bc109b41ac60ac3820c1ff834c68dac3756943b
SSDEEP

6144:9loZMNrIkd8g+EtXHkv/iD4N1yBR/k4XxG/BcoNS3b8e1mEXi:foZmL+EP8N1yBR/k4XxG/BcoNkfy

Score

10^/10

umbral execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral1/memory/3504-1-0x000001D64CFA0000-0x000001D64CFE0000-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
5116	powershell.exe
3312	powershell.exe
1080	powershell.exe
2496	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 2 IoCs

Web Service

T1102

flow	ioc
1	discord.com
4	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
3776	wmic.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
5116	powershell.exe
5116	powershell.exe
3312	powershell.exe
3312	powershell.exe
1080	powershell.exe
1080	powershell.exe
4092	powershell.exe
4092	powershell.exe
2496	powershell.exe
2496	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3504	SU.exe
Token: SeDebugPrivilege	5116	powershell.exe
Token: SeDebugPrivilege	3312	powershell.exe
Token: SeDebugPrivilege	1080	powershell.exe
Token: SeDebugPrivilege	4092	powershell.exe
Token: SeIncreaseQuotaPrivilege	912	wmic.exe
Token: SeSecurityPrivilege	912	wmic.exe
Token: SeTakeOwnershipPrivilege	912	wmic.exe
Token: SeLoadDriverPrivilege	912	wmic.exe
Token: SeSystemProfilePrivilege	912	wmic.exe
Token: SeSystemtimePrivilege	912	wmic.exe
Token: SeProfSingleProcessPrivilege	912	wmic.exe
Token: SeIncBasePriorityPrivilege	912	wmic.exe
Token: SeCreatePagefilePrivilege	912	wmic.exe
Token: SeBackupPrivilege	912	wmic.exe
Token: SeRestorePrivilege	912	wmic.exe
Token: SeShutdownPrivilege	912	wmic.exe
Token: SeDebugPrivilege	912	wmic.exe
Token: SeSystemEnvironmentPrivilege	912	wmic.exe
Token: SeRemoteShutdownPrivilege	912	wmic.exe
Token: SeUndockPrivilege	912	wmic.exe
Token: SeManageVolumePrivilege	912	wmic.exe
Token: 33	912	wmic.exe
Token: 34	912	wmic.exe
Token: 35	912	wmic.exe
Token: 36	912	wmic.exe
Token: SeIncreaseQuotaPrivilege	912	wmic.exe
Token: SeSecurityPrivilege	912	wmic.exe
Token: SeTakeOwnershipPrivilege	912	wmic.exe
Token: SeLoadDriverPrivilege	912	wmic.exe
Token: SeSystemProfilePrivilege	912	wmic.exe
Token: SeSystemtimePrivilege	912	wmic.exe
Token: SeProfSingleProcessPrivilege	912	wmic.exe
Token: SeIncBasePriorityPrivilege	912	wmic.exe
Token: SeCreatePagefilePrivilege	912	wmic.exe
Token: SeBackupPrivilege	912	wmic.exe
Token: SeRestorePrivilege	912	wmic.exe
Token: SeShutdownPrivilege	912	wmic.exe
Token: SeDebugPrivilege	912	wmic.exe
Token: SeSystemEnvironmentPrivilege	912	wmic.exe
Token: SeRemoteShutdownPrivilege	912	wmic.exe
Token: SeUndockPrivilege	912	wmic.exe
Token: SeManageVolumePrivilege	912	wmic.exe
Token: 33	912	wmic.exe
Token: 34	912	wmic.exe
Token: 35	912	wmic.exe
Token: 36	912	wmic.exe
Token: SeIncreaseQuotaPrivilege	2904	wmic.exe
Token: SeSecurityPrivilege	2904	wmic.exe
Token: SeTakeOwnershipPrivilege	2904	wmic.exe
Token: SeLoadDriverPrivilege	2904	wmic.exe
Token: SeSystemProfilePrivilege	2904	wmic.exe
Token: SeSystemtimePrivilege	2904	wmic.exe
Token: SeProfSingleProcessPrivilege	2904	wmic.exe
Token: SeIncBasePriorityPrivilege	2904	wmic.exe
Token: SeCreatePagefilePrivilege	2904	wmic.exe
Token: SeBackupPrivilege	2904	wmic.exe
Token: SeRestorePrivilege	2904	wmic.exe
Token: SeShutdownPrivilege	2904	wmic.exe
Token: SeDebugPrivilege	2904	wmic.exe
Token: SeSystemEnvironmentPrivilege	2904	wmic.exe
Token: SeRemoteShutdownPrivilege	2904	wmic.exe
Token: SeUndockPrivilege	2904	wmic.exe
Token: SeManageVolumePrivilege	2904	wmic.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 3504 wrote to memory of 5116	3504	SU.exe	77
PID 3504 wrote to memory of 5116	3504	SU.exe	77
PID 3504 wrote to memory of 3312	3504	SU.exe	79
PID 3504 wrote to memory of 3312	3504	SU.exe	79
PID 3504 wrote to memory of 1080	3504	SU.exe	81
PID 3504 wrote to memory of 1080	3504	SU.exe	81
PID 3504 wrote to memory of 4092	3504	SU.exe	83
PID 3504 wrote to memory of 4092	3504	SU.exe	83
PID 3504 wrote to memory of 912	3504	SU.exe	85
PID 3504 wrote to memory of 912	3504	SU.exe	85
PID 3504 wrote to memory of 2904	3504	SU.exe	88
PID 3504 wrote to memory of 2904	3504	SU.exe	88
PID 3504 wrote to memory of 1368	3504	SU.exe	90
PID 3504 wrote to memory of 1368	3504	SU.exe	90
PID 3504 wrote to memory of 2496	3504	SU.exe	92
PID 3504 wrote to memory of 2496	3504	SU.exe	92
PID 3504 wrote to memory of 3776	3504	SU.exe	94
PID 3504 wrote to memory of 3776	3504	SU.exe	94

C:\Users\Admin\AppData\Local\Temp\SU.exe
"C:\Users\Admin\AppData\Local\Temp\SU.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3504
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\SU.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:5116
- 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:3312
- 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:1080
- 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:4092
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:912
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2904
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:1368
- 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:2496
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:3776

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
fa21dd50b4e64421076f843031c8ccf7

SHA1
2c56e94f130c0d8d77116e939ffee4e37cf982bd

SHA256
e4f21aca1e12aafa8de7af24b79a75526e902c7d4b3fea5bdb6e723976997be3

SHA512
b8de2bfeb7af06c587dd1f424d410cf83471f31a55a3ea4c4481ce07ffd9bf66ddc1f7775ecd6ac65ac33baaec90ba5a208a9aefc84f31125a50dfb919982687

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

Filesize
1KB

MD5
57083a8e45ebe4fd84c7c0f137ec3e21

SHA1
857b5ea57f7bcf03cadee122106c6e58792a9b84

SHA256
f20102c4dc409cad3cdaf7a330c3a18a730a9d7d902b9fbee2a84186cba93d40

SHA512
4bbc21c07c05ee1f783242f0fb59324d5ff9ae18bdf892f02980d582fed83380888eeba58e1a6a321507cfd5d4fe82a328a0d3482b29633be4e3ebbeac636f87

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

Filesize
1KB

MD5
aa7173c2b88baef9eec773515d42b935

SHA1
cc0f1f4fcbcccd8788c87231f36c5da3ecc17ac4

SHA256
8f0a2fe3f5fa35037a31ccd7a3d6cabe45064e5455359661fc6f4eac8f2e40fa

SHA512
aac1a9afa949bcd1af6cd457d755183ce95424aa101058453e5e7fc96ae88440a84ac2d7ce7697b958897f1c80cf81f6a733240463d57b3d0a9da8c2bc01ce2b

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_wn3jp1ke.4lq.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/3504-68-0x000001D667700000-0x000001D66770A000-memory.dmp

Filesize
40KB

Download
memory/3504-69-0x000001D667820000-0x000001D667832000-memory.dmp

Filesize
72KB

Download
memory/3504-90-0x00007FFAA10A0000-0x00007FFAA1B62000-memory.dmp

Filesize
10.8MB

Download
memory/3504-85-0x00007FFAA10A0000-0x00007FFAA1B62000-memory.dmp

Filesize
10.8MB

Download
memory/3504-1-0x000001D64CFA0000-0x000001D64CFE0000-memory.dmp

Filesize
256KB

Download
memory/3504-73-0x00007FFAA10A3000-0x00007FFAA10A5000-memory.dmp

Filesize
8KB

Download
memory/3504-0-0x00007FFAA10A3000-0x00007FFAA10A5000-memory.dmp

Filesize
8KB

Download
memory/3504-31-0x000001D667760000-0x000001D6677D6000-memory.dmp

Filesize
472KB

Download
memory/3504-32-0x000001D667710000-0x000001D667760000-memory.dmp

Filesize
320KB

Download
memory/3504-33-0x000001D6677E0000-0x000001D6677FE000-memory.dmp

Filesize
120KB

Download
memory/3504-2-0x00007FFAA10A0000-0x00007FFAA1B62000-memory.dmp

Filesize
10.8MB

Download
memory/5116-3-0x00007FFAA10A0000-0x00007FFAA1B62000-memory.dmp

Filesize
10.8MB

Download
memory/5116-13-0x00007FFAA10A0000-0x00007FFAA1B62000-memory.dmp

Filesize
10.8MB

Download
memory/5116-14-0x00007FFAA10A0000-0x00007FFAA1B62000-memory.dmp

Filesize
10.8MB

Download
memory/5116-12-0x000002A3CFD20000-0x000002A3CFD42000-memory.dmp

Filesize
136KB

Download
memory/5116-19-0x00007FFAA10A0000-0x00007FFAA1B62000-memory.dmp

Filesize
10.8MB

Download
memory/5116-16-0x00007FFAA10A0000-0x00007FFAA1B62000-memory.dmp

Filesize
10.8MB

Download
memory/5116-15-0x00007FFAA10A0000-0x00007FFAA1B62000-memory.dmp

Filesize
10.8MB

Download