umbral | 1ab54a5786eeedb01e74215a50a796fefbd12c47c0b864b1be5f6d45a2951bf4

Analysis

max time kernel
30s
max time network
7s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
08-08-2024 16:35

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General

Target

uhm, uhh.exe
Size

229KB
MD5

0d407796194f47dd4739950f347631dc
SHA1

2e843294cd4ccbdcb53b0ca4cdcb0d6640d75615
SHA256

1ab54a5786eeedb01e74215a50a796fefbd12c47c0b864b1be5f6d45a2951bf4
SHA512

b70550be02cc4b622fa35c0189884104a2b6719e8b593e156b74874cffc835a906df3b746b2247c2bffffbb47be6470ba3ac16cb2c8e163785f64650c43a4b97
SSDEEP

6144:tloZMNrIkd8g+EtXHkv/iD41KaC9rI8j867NokRQg4db8e1mAG+Iwi:voZmL+EP81KaC9rI8j867NokRQgkC+Ip

Score

10^/10

umbral credential_access execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral3/memory/2452-0-0x0000018F81D90000-0x0000018F81DD0000-memory.dmp	family_umbral

Umbral
Umbral stealer is an opensource moduler stealer written in C#.
stealer umbral
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
880	powershell.exe
4868	powershell.exe
964	powershell.exe
4932	powershell.exe

Reads user/profile data of web browsers 2 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

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
24	discord.com
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
7	ip-api.com

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
3604	wmic.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
4932	powershell.exe
4932	powershell.exe
880	powershell.exe
880	powershell.exe
4868	powershell.exe
4868	powershell.exe
4952	powershell.exe
4952	powershell.exe
964	powershell.exe
964	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2452	uhm, uhh.exe
Token: SeDebugPrivilege	4932	powershell.exe
Token: SeDebugPrivilege	880	powershell.exe
Token: SeDebugPrivilege	4868	powershell.exe
Token: SeDebugPrivilege	4952	powershell.exe
Token: SeIncreaseQuotaPrivilege	3212	wmic.exe
Token: SeSecurityPrivilege	3212	wmic.exe
Token: SeTakeOwnershipPrivilege	3212	wmic.exe
Token: SeLoadDriverPrivilege	3212	wmic.exe
Token: SeSystemProfilePrivilege	3212	wmic.exe
Token: SeSystemtimePrivilege	3212	wmic.exe
Token: SeProfSingleProcessPrivilege	3212	wmic.exe
Token: SeIncBasePriorityPrivilege	3212	wmic.exe
Token: SeCreatePagefilePrivilege	3212	wmic.exe
Token: SeBackupPrivilege	3212	wmic.exe
Token: SeRestorePrivilege	3212	wmic.exe
Token: SeShutdownPrivilege	3212	wmic.exe
Token: SeDebugPrivilege	3212	wmic.exe
Token: SeSystemEnvironmentPrivilege	3212	wmic.exe
Token: SeRemoteShutdownPrivilege	3212	wmic.exe
Token: SeUndockPrivilege	3212	wmic.exe
Token: SeManageVolumePrivilege	3212	wmic.exe
Token: 33	3212	wmic.exe
Token: 34	3212	wmic.exe
Token: 35	3212	wmic.exe
Token: 36	3212	wmic.exe
Token: SeIncreaseQuotaPrivilege	3212	wmic.exe
Token: SeSecurityPrivilege	3212	wmic.exe
Token: SeTakeOwnershipPrivilege	3212	wmic.exe
Token: SeLoadDriverPrivilege	3212	wmic.exe
Token: SeSystemProfilePrivilege	3212	wmic.exe
Token: SeSystemtimePrivilege	3212	wmic.exe
Token: SeProfSingleProcessPrivilege	3212	wmic.exe
Token: SeIncBasePriorityPrivilege	3212	wmic.exe
Token: SeCreatePagefilePrivilege	3212	wmic.exe
Token: SeBackupPrivilege	3212	wmic.exe
Token: SeRestorePrivilege	3212	wmic.exe
Token: SeShutdownPrivilege	3212	wmic.exe
Token: SeDebugPrivilege	3212	wmic.exe
Token: SeSystemEnvironmentPrivilege	3212	wmic.exe
Token: SeRemoteShutdownPrivilege	3212	wmic.exe
Token: SeUndockPrivilege	3212	wmic.exe
Token: SeManageVolumePrivilege	3212	wmic.exe
Token: 33	3212	wmic.exe
Token: 34	3212	wmic.exe
Token: 35	3212	wmic.exe
Token: 36	3212	wmic.exe
Token: SeIncreaseQuotaPrivilege	3348	wmic.exe
Token: SeSecurityPrivilege	3348	wmic.exe
Token: SeTakeOwnershipPrivilege	3348	wmic.exe
Token: SeLoadDriverPrivilege	3348	wmic.exe
Token: SeSystemProfilePrivilege	3348	wmic.exe
Token: SeSystemtimePrivilege	3348	wmic.exe
Token: SeProfSingleProcessPrivilege	3348	wmic.exe
Token: SeIncBasePriorityPrivilege	3348	wmic.exe
Token: SeCreatePagefilePrivilege	3348	wmic.exe
Token: SeBackupPrivilege	3348	wmic.exe
Token: SeRestorePrivilege	3348	wmic.exe
Token: SeShutdownPrivilege	3348	wmic.exe
Token: SeDebugPrivilege	3348	wmic.exe
Token: SeSystemEnvironmentPrivilege	3348	wmic.exe
Token: SeRemoteShutdownPrivilege	3348	wmic.exe
Token: SeUndockPrivilege	3348	wmic.exe
Token: SeManageVolumePrivilege	3348	wmic.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 2452 wrote to memory of 4932	2452	uhm, uhh.exe	84
PID 2452 wrote to memory of 4932	2452	uhm, uhh.exe	84
PID 2452 wrote to memory of 880	2452	uhm, uhh.exe	87
PID 2452 wrote to memory of 880	2452	uhm, uhh.exe	87
PID 2452 wrote to memory of 4868	2452	uhm, uhh.exe	90
PID 2452 wrote to memory of 4868	2452	uhm, uhh.exe	90
PID 2452 wrote to memory of 4952	2452	uhm, uhh.exe	92
PID 2452 wrote to memory of 4952	2452	uhm, uhh.exe	92
PID 2452 wrote to memory of 3212	2452	uhm, uhh.exe	94
PID 2452 wrote to memory of 3212	2452	uhm, uhh.exe	94
PID 2452 wrote to memory of 3348	2452	uhm, uhh.exe	97
PID 2452 wrote to memory of 3348	2452	uhm, uhh.exe	97
PID 2452 wrote to memory of 3280	2452	uhm, uhh.exe	99
PID 2452 wrote to memory of 3280	2452	uhm, uhh.exe	99
PID 2452 wrote to memory of 964	2452	uhm, uhh.exe	101
PID 2452 wrote to memory of 964	2452	uhm, uhh.exe	101
PID 2452 wrote to memory of 3604	2452	uhm, uhh.exe	103
PID 2452 wrote to memory of 3604	2452	uhm, uhh.exe	103

C:\Users\Admin\AppData\Local\Temp\uhm, uhh.exe
"C:\Users\Admin\AppData\Local\Temp\uhm, uhh.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2452
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\uhm, uhh.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4932
- 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:880
- 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:4868
- 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:4952
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:3212
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:3348
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:3280
- 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:964
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:3604

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
6d3e9c29fe44e90aae6ed30ccf799ca8

SHA1
c7974ef72264bbdf13a2793ccf1aed11bc565dce

SHA256
2360634e63e8f0b5748e2c56ebb8f4aa78e71008ea7b5c9ca1c49be03b49557d

SHA512
60c38c4367352537545d859f64b9c5cbada94240478d1d039fd27b5ecba4dc1c90051557c16d802269703b873546ead416279c0a80c6fd5e49ad361cef22596a

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

Filesize
948B

MD5
084f18b6ff291729e6f5cf628977198e

SHA1
c82d27261030eef59ad2258d4eeb9119116a67a1

SHA256
a7570027dec18cac2a8bdefe9c49621040d12f4f07d935202a66691a119a9ee1

SHA512
8835aaec15895d90c724b0a7671f7b68dae23389124949336d2fa7d8fffe980421b625d8d8a0a73f9a6e9affc23c0ccdcc5998820adcf5829df7bd1fa7e6c73a

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

Filesize
1KB

MD5
276798eeb29a49dc6e199768bc9c2e71

SHA1
5fdc8ccb897ac2df7476fbb07517aca5b7a6205b

SHA256
cd0a1056e8f1b6cb5cb328532239d802f4e2aa8f8fcdc0fcb487684bd68e0dcc

SHA512
0d34fce64bbefc57d64fa6e03ca886952263d5f24df9c1c4cce6a1e8f5a47a9a21e9820f8d38caa7f7b43a52336ce00b738ea18419aaa7c788b72e04ce19e4f2

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

Filesize
1KB

MD5
d8a781a8d47e148c742681deaa63ac8d

SHA1
49594c22cc6183605b96b715a0c00c1bf1bbb468

SHA256
994622f9d048bce32fd23dec62a532b965883a169722f36ce72a639e29b8303c

SHA512
f32989be9a903764c4ed3b8ab4e61a677ca4d37031200530164d192c25c269143cb127a73380ea0d88ac81f1a3a7c141d77fbd74c211c9d969bf2af9202e7fbe

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_hlqfmqwp.jf1.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/880-31-0x0000025DA80F0000-0x0000025DA830C000-memory.dmp

Filesize
2.1MB

Download
memory/2452-0-0x0000018F81D90000-0x0000018F81DD0000-memory.dmp

Filesize
256KB

Download
memory/2452-71-0x0000018F83B50000-0x0000018F83B5A000-memory.dmp

Filesize
40KB

Download
memory/2452-2-0x00007FFDBE620000-0x00007FFDBF0E1000-memory.dmp

Filesize
10.8MB

Download
memory/2452-1-0x00007FFDBE623000-0x00007FFDBE625000-memory.dmp

Filesize
8KB

Download
memory/2452-90-0x00007FFDBE620000-0x00007FFDBF0E1000-memory.dmp

Filesize
10.8MB

Download
memory/2452-32-0x0000018F9C3D0000-0x0000018F9C446000-memory.dmp

Filesize
472KB

Download
memory/2452-33-0x0000018F9C5D0000-0x0000018F9C620000-memory.dmp

Filesize
320KB

Download
memory/2452-34-0x0000018F83B20000-0x0000018F83B3E000-memory.dmp

Filesize
120KB

Download
memory/2452-72-0x0000018F83B80000-0x0000018F83B92000-memory.dmp

Filesize
72KB

Download
memory/4932-15-0x00007FFDBE620000-0x00007FFDBF0E1000-memory.dmp

Filesize
10.8MB

Download
memory/4932-14-0x00007FFDBE620000-0x00007FFDBF0E1000-memory.dmp

Filesize
10.8MB

Download
memory/4932-12-0x000001BC07C60000-0x000001BC07C82000-memory.dmp

Filesize
136KB

Download
memory/4932-13-0x00007FFDBE620000-0x00007FFDBF0E1000-memory.dmp

Filesize
10.8MB

Download
memory/4932-18-0x00007FFDBE620000-0x00007FFDBF0E1000-memory.dmp

Filesize
10.8MB

Download
memory/4952-69-0x0000020F66C80000-0x0000020F66E9C000-memory.dmp

Filesize
2.1MB

Download