umbral | b575e722311556b67bc4f2ff77470063e5453e8f9952ddcd33afec9bdefc3902

Analysis

max time kernel
89s
max time network
18s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
26-08-2024 18:10

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General

Target

Fatality.exe
Size

231KB
MD5

2a9d5da0bb69d53e1b68178bc63e9390
SHA1

b1170f7ca36ea613188a272dc8ff8720a586de3a
SHA256

b575e722311556b67bc4f2ff77470063e5453e8f9952ddcd33afec9bdefc3902
SHA512

372288f96c8d39cba9529e7c44ce4b083eddf50dc3c3317b7b97c02d07018cdc2e0913da3e8309d548f80d68c95b9dd65e4febd4d7ca3b4d6a8df3360cf6aca3
SSDEEP

6144:RloZM+rIkd8g+EtXHkv/iD4ZvHYe5xypXKYZd8ZC6lY8e1mGi:joZtL+EP8pHYe5xypXKYZd8dk2

Score

10^/10

umbral credential_access discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral1/memory/2188-1-0x00000000013C0000-0x0000000001400000-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
2692	powershell.exe
1716	powershell.exe
1736	powershell.exe
3004	powershell.exe

Drops file in Drivers directory 1 IoCs

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

Deletes itself 1 IoCs

pid	Process
2384	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
8	discord.com
7	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
4	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
2384	cmd.exe
1076	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
2332	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1076	PING.EXE

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2188	Fatality.exe
2692	powershell.exe
3004	powershell.exe
1716	powershell.exe
2116	powershell.exe
1736	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2188	Fatality.exe
Token: SeIncreaseQuotaPrivilege	2788	wmic.exe
Token: SeSecurityPrivilege	2788	wmic.exe
Token: SeTakeOwnershipPrivilege	2788	wmic.exe
Token: SeLoadDriverPrivilege	2788	wmic.exe
Token: SeSystemProfilePrivilege	2788	wmic.exe
Token: SeSystemtimePrivilege	2788	wmic.exe
Token: SeProfSingleProcessPrivilege	2788	wmic.exe
Token: SeIncBasePriorityPrivilege	2788	wmic.exe
Token: SeCreatePagefilePrivilege	2788	wmic.exe
Token: SeBackupPrivilege	2788	wmic.exe
Token: SeRestorePrivilege	2788	wmic.exe
Token: SeShutdownPrivilege	2788	wmic.exe
Token: SeDebugPrivilege	2788	wmic.exe
Token: SeSystemEnvironmentPrivilege	2788	wmic.exe
Token: SeRemoteShutdownPrivilege	2788	wmic.exe
Token: SeUndockPrivilege	2788	wmic.exe
Token: SeManageVolumePrivilege	2788	wmic.exe
Token: 33	2788	wmic.exe
Token: 34	2788	wmic.exe
Token: 35	2788	wmic.exe
Token: SeIncreaseQuotaPrivilege	2788	wmic.exe
Token: SeSecurityPrivilege	2788	wmic.exe
Token: SeTakeOwnershipPrivilege	2788	wmic.exe
Token: SeLoadDriverPrivilege	2788	wmic.exe
Token: SeSystemProfilePrivilege	2788	wmic.exe
Token: SeSystemtimePrivilege	2788	wmic.exe
Token: SeProfSingleProcessPrivilege	2788	wmic.exe
Token: SeIncBasePriorityPrivilege	2788	wmic.exe
Token: SeCreatePagefilePrivilege	2788	wmic.exe
Token: SeBackupPrivilege	2788	wmic.exe
Token: SeRestorePrivilege	2788	wmic.exe
Token: SeShutdownPrivilege	2788	wmic.exe
Token: SeDebugPrivilege	2788	wmic.exe
Token: SeSystemEnvironmentPrivilege	2788	wmic.exe
Token: SeRemoteShutdownPrivilege	2788	wmic.exe
Token: SeUndockPrivilege	2788	wmic.exe
Token: SeManageVolumePrivilege	2788	wmic.exe
Token: 33	2788	wmic.exe
Token: 34	2788	wmic.exe
Token: 35	2788	wmic.exe
Token: SeDebugPrivilege	2692	powershell.exe
Token: SeDebugPrivilege	3004	powershell.exe
Token: SeDebugPrivilege	1716	powershell.exe
Token: SeDebugPrivilege	2116	powershell.exe
Token: SeIncreaseQuotaPrivilege	2204	wmic.exe
Token: SeSecurityPrivilege	2204	wmic.exe
Token: SeTakeOwnershipPrivilege	2204	wmic.exe
Token: SeLoadDriverPrivilege	2204	wmic.exe
Token: SeSystemProfilePrivilege	2204	wmic.exe
Token: SeSystemtimePrivilege	2204	wmic.exe
Token: SeProfSingleProcessPrivilege	2204	wmic.exe
Token: SeIncBasePriorityPrivilege	2204	wmic.exe
Token: SeCreatePagefilePrivilege	2204	wmic.exe
Token: SeBackupPrivilege	2204	wmic.exe
Token: SeRestorePrivilege	2204	wmic.exe
Token: SeShutdownPrivilege	2204	wmic.exe
Token: SeDebugPrivilege	2204	wmic.exe
Token: SeSystemEnvironmentPrivilege	2204	wmic.exe
Token: SeRemoteShutdownPrivilege	2204	wmic.exe
Token: SeUndockPrivilege	2204	wmic.exe
Token: SeManageVolumePrivilege	2204	wmic.exe
Token: 33	2204	wmic.exe
Token: 34	2204	wmic.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 2188 wrote to memory of 2788	2188	Fatality.exe	30
PID 2188 wrote to memory of 2788	2188	Fatality.exe	30
PID 2188 wrote to memory of 2788	2188	Fatality.exe	30
PID 2188 wrote to memory of 2556	2188	Fatality.exe	33
PID 2188 wrote to memory of 2556	2188	Fatality.exe	33
PID 2188 wrote to memory of 2556	2188	Fatality.exe	33
PID 2188 wrote to memory of 2692	2188	Fatality.exe	35
PID 2188 wrote to memory of 2692	2188	Fatality.exe	35
PID 2188 wrote to memory of 2692	2188	Fatality.exe	35
PID 2188 wrote to memory of 3004	2188	Fatality.exe	37
PID 2188 wrote to memory of 3004	2188	Fatality.exe	37
PID 2188 wrote to memory of 3004	2188	Fatality.exe	37
PID 2188 wrote to memory of 1716	2188	Fatality.exe	39
PID 2188 wrote to memory of 1716	2188	Fatality.exe	39
PID 2188 wrote to memory of 1716	2188	Fatality.exe	39
PID 2188 wrote to memory of 2116	2188	Fatality.exe	41
PID 2188 wrote to memory of 2116	2188	Fatality.exe	41
PID 2188 wrote to memory of 2116	2188	Fatality.exe	41
PID 2188 wrote to memory of 2204	2188	Fatality.exe	43
PID 2188 wrote to memory of 2204	2188	Fatality.exe	43
PID 2188 wrote to memory of 2204	2188	Fatality.exe	43
PID 2188 wrote to memory of 2988	2188	Fatality.exe	45
PID 2188 wrote to memory of 2988	2188	Fatality.exe	45
PID 2188 wrote to memory of 2988	2188	Fatality.exe	45
PID 2188 wrote to memory of 1872	2188	Fatality.exe	47
PID 2188 wrote to memory of 1872	2188	Fatality.exe	47
PID 2188 wrote to memory of 1872	2188	Fatality.exe	47
PID 2188 wrote to memory of 1736	2188	Fatality.exe	49
PID 2188 wrote to memory of 1736	2188	Fatality.exe	49
PID 2188 wrote to memory of 1736	2188	Fatality.exe	49
PID 2188 wrote to memory of 2332	2188	Fatality.exe	51
PID 2188 wrote to memory of 2332	2188	Fatality.exe	51
PID 2188 wrote to memory of 2332	2188	Fatality.exe	51
PID 2188 wrote to memory of 2384	2188	Fatality.exe	53
PID 2188 wrote to memory of 2384	2188	Fatality.exe	53
PID 2188 wrote to memory of 2384	2188	Fatality.exe	53
PID 2384 wrote to memory of 1076	2384	cmd.exe	55
PID 2384 wrote to memory of 1076	2384	cmd.exe	55
PID 2384 wrote to memory of 1076	2384	cmd.exe	55

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2556	attrib.exe

C:\Users\Admin\AppData\Local\Temp\Fatality.exe
"C:\Users\Admin\AppData\Local\Temp\Fatality.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2188
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2788
- C:\Windows\system32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\Fatality.exe"
  2⤵
  - Views/modifies file attributes
  PID:2556
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\Fatality.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2692
- 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:3004
- 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:1716
- 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:2116
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2204
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:2988
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:1872
- 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:1736
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:2332
- C:\Windows\system32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\Fatality.exe" && pause
  2⤵
  - Deletes itself
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2384
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:1076

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
d4bf5f71973bee03d0883523cc1129ce

SHA1
2a20be2363335aa1ba1746d585f4bd9f0a371152

SHA256
e68558c0813845069db3260005f34da1e198e6eee1d5129962c589767a187e1d

SHA512
8464e85c1ebd4074ca85f7fd2fee2cec18c585db9564c57c2f0bd7a93830d9bd44fb88e45f69d9e7a2a75ea91831a2dc02aaf3759a401eb9564ed3a1b50cacd5

Download Submit
memory/1736-43-0x0000000002250000-0x0000000002258000-memory.dmp

Filesize
32KB

Download
memory/2188-0-0x000007FEF4EB3000-0x000007FEF4EB4000-memory.dmp

Filesize
4KB

Download
memory/2188-1-0x00000000013C0000-0x0000000001400000-memory.dmp

Filesize
256KB

Download
memory/2188-2-0x000007FEF4EB0000-0x000007FEF589C000-memory.dmp

Filesize
9.9MB

Download
memory/2188-47-0x000007FEF4EB0000-0x000007FEF589C000-memory.dmp

Filesize
9.9MB

Download
memory/2692-7-0x000000001B6F0000-0x000000001B9D2000-memory.dmp

Filesize
2.9MB

Download
memory/2692-8-0x0000000001D20000-0x0000000001D28000-memory.dmp

Filesize
32KB

Download
memory/3004-14-0x000000001B5B0000-0x000000001B892000-memory.dmp

Filesize
2.9MB

Download
memory/3004-15-0x0000000002150000-0x0000000002158000-memory.dmp

Filesize
32KB

Download