umbral | e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
18-09-2024 15:03

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General

Target

e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe
Size

234KB
MD5

4de282f3a3d77c0b217fa45c09454d22
SHA1

bdf07d339f21217ae5acfcce83bcc04ac1037134
SHA256

e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec
SHA512

2b58af8a8b1ed2328c100dc9f7665e26c08c3b586079f736255003f3a1a503d6ba97a4040168c5da4d6998d0d2ed81735b74d73958e9baeef361d97559c701fa
SSDEEP

6144:1rQHIw0YRt+1SHkekkngPBJW8e1mhNax:1QP+2nfC0x

Score

10^/10

umbral credential_access discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral1/memory/2400-1-0x00000000012A0000-0x00000000012E0000-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

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

execution

PowerShell

T1059.001

pid	Process
2972	powershell.exe
2644	powershell.exe
2652	powershell.exe
1676	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe

Deletes itself 1 IoCs

pid	Process
2252	cmd.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
9	discord.com
10	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
6	ip-api.com

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
2252	cmd.exe
2456	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
2128	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2456	PING.EXE

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2400	e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe
2972	powershell.exe
2644	powershell.exe
2652	powershell.exe
3040	powershell.exe
1676	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2400	e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe
Token: SeIncreaseQuotaPrivilege	2692	wmic.exe
Token: SeSecurityPrivilege	2692	wmic.exe
Token: SeTakeOwnershipPrivilege	2692	wmic.exe
Token: SeLoadDriverPrivilege	2692	wmic.exe
Token: SeSystemProfilePrivilege	2692	wmic.exe
Token: SeSystemtimePrivilege	2692	wmic.exe
Token: SeProfSingleProcessPrivilege	2692	wmic.exe
Token: SeIncBasePriorityPrivilege	2692	wmic.exe
Token: SeCreatePagefilePrivilege	2692	wmic.exe
Token: SeBackupPrivilege	2692	wmic.exe
Token: SeRestorePrivilege	2692	wmic.exe
Token: SeShutdownPrivilege	2692	wmic.exe
Token: SeDebugPrivilege	2692	wmic.exe
Token: SeSystemEnvironmentPrivilege	2692	wmic.exe
Token: SeRemoteShutdownPrivilege	2692	wmic.exe
Token: SeUndockPrivilege	2692	wmic.exe
Token: SeManageVolumePrivilege	2692	wmic.exe
Token: 33	2692	wmic.exe
Token: 34	2692	wmic.exe
Token: 35	2692	wmic.exe
Token: SeIncreaseQuotaPrivilege	2692	wmic.exe
Token: SeSecurityPrivilege	2692	wmic.exe
Token: SeTakeOwnershipPrivilege	2692	wmic.exe
Token: SeLoadDriverPrivilege	2692	wmic.exe
Token: SeSystemProfilePrivilege	2692	wmic.exe
Token: SeSystemtimePrivilege	2692	wmic.exe
Token: SeProfSingleProcessPrivilege	2692	wmic.exe
Token: SeIncBasePriorityPrivilege	2692	wmic.exe
Token: SeCreatePagefilePrivilege	2692	wmic.exe
Token: SeBackupPrivilege	2692	wmic.exe
Token: SeRestorePrivilege	2692	wmic.exe
Token: SeShutdownPrivilege	2692	wmic.exe
Token: SeDebugPrivilege	2692	wmic.exe
Token: SeSystemEnvironmentPrivilege	2692	wmic.exe
Token: SeRemoteShutdownPrivilege	2692	wmic.exe
Token: SeUndockPrivilege	2692	wmic.exe
Token: SeManageVolumePrivilege	2692	wmic.exe
Token: 33	2692	wmic.exe
Token: 34	2692	wmic.exe
Token: 35	2692	wmic.exe
Token: SeDebugPrivilege	2972	powershell.exe
Token: SeDebugPrivilege	2644	powershell.exe
Token: SeDebugPrivilege	2652	powershell.exe
Token: SeDebugPrivilege	3040	powershell.exe
Token: SeIncreaseQuotaPrivilege	1236	wmic.exe
Token: SeSecurityPrivilege	1236	wmic.exe
Token: SeTakeOwnershipPrivilege	1236	wmic.exe
Token: SeLoadDriverPrivilege	1236	wmic.exe
Token: SeSystemProfilePrivilege	1236	wmic.exe
Token: SeSystemtimePrivilege	1236	wmic.exe
Token: SeProfSingleProcessPrivilege	1236	wmic.exe
Token: SeIncBasePriorityPrivilege	1236	wmic.exe
Token: SeCreatePagefilePrivilege	1236	wmic.exe
Token: SeBackupPrivilege	1236	wmic.exe
Token: SeRestorePrivilege	1236	wmic.exe
Token: SeShutdownPrivilege	1236	wmic.exe
Token: SeDebugPrivilege	1236	wmic.exe
Token: SeSystemEnvironmentPrivilege	1236	wmic.exe
Token: SeRemoteShutdownPrivilege	1236	wmic.exe
Token: SeUndockPrivilege	1236	wmic.exe
Token: SeManageVolumePrivilege	1236	wmic.exe
Token: 33	1236	wmic.exe
Token: 34	1236	wmic.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 2400 wrote to memory of 2692	2400	e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe	30
PID 2400 wrote to memory of 2692	2400	e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe	30
PID 2400 wrote to memory of 2692	2400	e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe	30
PID 2400 wrote to memory of 2844	2400	e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe	33
PID 2400 wrote to memory of 2844	2400	e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe	33
PID 2400 wrote to memory of 2844	2400	e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe	33
PID 2400 wrote to memory of 2972	2400	e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe	35
PID 2400 wrote to memory of 2972	2400	e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe	35
PID 2400 wrote to memory of 2972	2400	e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe	35
PID 2400 wrote to memory of 2644	2400	e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe	37
PID 2400 wrote to memory of 2644	2400	e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe	37
PID 2400 wrote to memory of 2644	2400	e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe	37
PID 2400 wrote to memory of 2652	2400	e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe	39
PID 2400 wrote to memory of 2652	2400	e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe	39
PID 2400 wrote to memory of 2652	2400	e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe	39
PID 2400 wrote to memory of 3040	2400	e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe	41
PID 2400 wrote to memory of 3040	2400	e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe	41
PID 2400 wrote to memory of 3040	2400	e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe	41
PID 2400 wrote to memory of 1236	2400	e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe	43
PID 2400 wrote to memory of 1236	2400	e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe	43
PID 2400 wrote to memory of 1236	2400	e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe	43
PID 2400 wrote to memory of 1776	2400	e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe	45
PID 2400 wrote to memory of 1776	2400	e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe	45
PID 2400 wrote to memory of 1776	2400	e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe	45
PID 2400 wrote to memory of 1132	2400	e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe	47
PID 2400 wrote to memory of 1132	2400	e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe	47
PID 2400 wrote to memory of 1132	2400	e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe	47
PID 2400 wrote to memory of 1676	2400	e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe	49
PID 2400 wrote to memory of 1676	2400	e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe	49
PID 2400 wrote to memory of 1676	2400	e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe	49
PID 2400 wrote to memory of 2128	2400	e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe	51
PID 2400 wrote to memory of 2128	2400	e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe	51
PID 2400 wrote to memory of 2128	2400	e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe	51
PID 2400 wrote to memory of 2252	2400	e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe	53
PID 2400 wrote to memory of 2252	2400	e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe	53
PID 2400 wrote to memory of 2252	2400	e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe	53
PID 2252 wrote to memory of 2456	2252	cmd.exe	55
PID 2252 wrote to memory of 2456	2252	cmd.exe	55
PID 2252 wrote to memory of 2456	2252	cmd.exe	55

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2844	attrib.exe

C:\Users\Admin\AppData\Local\Temp\e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe
"C:\Users\Admin\AppData\Local\Temp\e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2400
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2692
- C:\Windows\system32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe"
  2⤵
  - Views/modifies file attributes
  PID:2844
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2972
- 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:2644
- 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:2652
- 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:3040
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1236
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:1776
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:1132
- 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:1676
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:2128
- C:\Windows\system32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\e6d228a2a4610cb3d21b4cc965223f5f4c98e40263c71d0307e6dc4a693512ec.exe" && pause
  2⤵
  - Deletes itself
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2252
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:2456

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

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Remote System Discovery

T1018

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

Web Service

T1102

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

Filesize
7KB

MD5
e9f41fbaa79844527d2bdf4f09d0b42a

SHA1
7d260078846baf3cee2e7d0526ef492203f9fa31

SHA256
1cab393fd07e2cc05f0e67bae8146721d1a36e7a4f80fbe2f26a1966c9bc1c8d

SHA512
157fbc9d60f9d947df8c79267961076a5096050375e133829dfaefd925f4b9170044b4618aa3291efdbf3ef7bd72e8d6b128adb4d766febd8ccfff8525d36c38

Download Submit
memory/1676-40-0x00000000026E0000-0x00000000026E8000-memory.dmp

Filesize
32KB

Download
memory/2400-0-0x000007FEF50D3000-0x000007FEF50D4000-memory.dmp

Filesize
4KB

Download
memory/2400-1-0x00000000012A0000-0x00000000012E0000-memory.dmp

Filesize
256KB

Download
memory/2400-2-0x000007FEF50D0000-0x000007FEF5ABC000-memory.dmp

Filesize
9.9MB

Download
memory/2400-44-0x000007FEF50D0000-0x000007FEF5ABC000-memory.dmp

Filesize
9.9MB

Download
memory/2644-14-0x000000001B600000-0x000000001B8E2000-memory.dmp

Filesize
2.9MB

Download
memory/2644-15-0x0000000002070000-0x0000000002078000-memory.dmp

Filesize
32KB

Download
memory/2972-7-0x000000001B5F0000-0x000000001B8D2000-memory.dmp

Filesize
2.9MB

Download
memory/2972-8-0x00000000028E0000-0x00000000028E8000-memory.dmp

Filesize
32KB

Download