umbral | b575e722311556b67bc4f2ff77470063e5453e8f9952ddcd33afec9bdefc3902

Analysis

max time kernel
16s
max time network
17s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
26-08-2024 18:00

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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/2944-1-0x0000000000F10000-0x0000000000F50000-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
2916	powershell.exe
2884	powershell.exe
3028	powershell.exe
1964	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
1636	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
2388	PING.EXE
1636	cmd.exe

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
2940	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2388	PING.EXE

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2944	Fatality.exe
1964	powershell.exe
2916	powershell.exe
2884	powershell.exe
2680	powershell.exe
3028	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2944	Fatality.exe
Token: SeIncreaseQuotaPrivilege	1056	wmic.exe
Token: SeSecurityPrivilege	1056	wmic.exe
Token: SeTakeOwnershipPrivilege	1056	wmic.exe
Token: SeLoadDriverPrivilege	1056	wmic.exe
Token: SeSystemProfilePrivilege	1056	wmic.exe
Token: SeSystemtimePrivilege	1056	wmic.exe
Token: SeProfSingleProcessPrivilege	1056	wmic.exe
Token: SeIncBasePriorityPrivilege	1056	wmic.exe
Token: SeCreatePagefilePrivilege	1056	wmic.exe
Token: SeBackupPrivilege	1056	wmic.exe
Token: SeRestorePrivilege	1056	wmic.exe
Token: SeShutdownPrivilege	1056	wmic.exe
Token: SeDebugPrivilege	1056	wmic.exe
Token: SeSystemEnvironmentPrivilege	1056	wmic.exe
Token: SeRemoteShutdownPrivilege	1056	wmic.exe
Token: SeUndockPrivilege	1056	wmic.exe
Token: SeManageVolumePrivilege	1056	wmic.exe
Token: 33	1056	wmic.exe
Token: 34	1056	wmic.exe
Token: 35	1056	wmic.exe
Token: SeIncreaseQuotaPrivilege	1056	wmic.exe
Token: SeSecurityPrivilege	1056	wmic.exe
Token: SeTakeOwnershipPrivilege	1056	wmic.exe
Token: SeLoadDriverPrivilege	1056	wmic.exe
Token: SeSystemProfilePrivilege	1056	wmic.exe
Token: SeSystemtimePrivilege	1056	wmic.exe
Token: SeProfSingleProcessPrivilege	1056	wmic.exe
Token: SeIncBasePriorityPrivilege	1056	wmic.exe
Token: SeCreatePagefilePrivilege	1056	wmic.exe
Token: SeBackupPrivilege	1056	wmic.exe
Token: SeRestorePrivilege	1056	wmic.exe
Token: SeShutdownPrivilege	1056	wmic.exe
Token: SeDebugPrivilege	1056	wmic.exe
Token: SeSystemEnvironmentPrivilege	1056	wmic.exe
Token: SeRemoteShutdownPrivilege	1056	wmic.exe
Token: SeUndockPrivilege	1056	wmic.exe
Token: SeManageVolumePrivilege	1056	wmic.exe
Token: 33	1056	wmic.exe
Token: 34	1056	wmic.exe
Token: 35	1056	wmic.exe
Token: SeDebugPrivilege	1964	powershell.exe
Token: SeDebugPrivilege	2916	powershell.exe
Token: SeDebugPrivilege	2884	powershell.exe
Token: SeDebugPrivilege	2680	powershell.exe
Token: SeIncreaseQuotaPrivilege	2848	wmic.exe
Token: SeSecurityPrivilege	2848	wmic.exe
Token: SeTakeOwnershipPrivilege	2848	wmic.exe
Token: SeLoadDriverPrivilege	2848	wmic.exe
Token: SeSystemProfilePrivilege	2848	wmic.exe
Token: SeSystemtimePrivilege	2848	wmic.exe
Token: SeProfSingleProcessPrivilege	2848	wmic.exe
Token: SeIncBasePriorityPrivilege	2848	wmic.exe
Token: SeCreatePagefilePrivilege	2848	wmic.exe
Token: SeBackupPrivilege	2848	wmic.exe
Token: SeRestorePrivilege	2848	wmic.exe
Token: SeShutdownPrivilege	2848	wmic.exe
Token: SeDebugPrivilege	2848	wmic.exe
Token: SeSystemEnvironmentPrivilege	2848	wmic.exe
Token: SeRemoteShutdownPrivilege	2848	wmic.exe
Token: SeUndockPrivilege	2848	wmic.exe
Token: SeManageVolumePrivilege	2848	wmic.exe
Token: 33	2848	wmic.exe
Token: 34	2848	wmic.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 2944 wrote to memory of 1056	2944	Fatality.exe	29
PID 2944 wrote to memory of 1056	2944	Fatality.exe	29
PID 2944 wrote to memory of 1056	2944	Fatality.exe	29
PID 2944 wrote to memory of 3060	2944	Fatality.exe	32
PID 2944 wrote to memory of 3060	2944	Fatality.exe	32
PID 2944 wrote to memory of 3060	2944	Fatality.exe	32
PID 2944 wrote to memory of 1964	2944	Fatality.exe	34
PID 2944 wrote to memory of 1964	2944	Fatality.exe	34
PID 2944 wrote to memory of 1964	2944	Fatality.exe	34
PID 2944 wrote to memory of 2916	2944	Fatality.exe	36
PID 2944 wrote to memory of 2916	2944	Fatality.exe	36
PID 2944 wrote to memory of 2916	2944	Fatality.exe	36
PID 2944 wrote to memory of 2884	2944	Fatality.exe	38
PID 2944 wrote to memory of 2884	2944	Fatality.exe	38
PID 2944 wrote to memory of 2884	2944	Fatality.exe	38
PID 2944 wrote to memory of 2680	2944	Fatality.exe	40
PID 2944 wrote to memory of 2680	2944	Fatality.exe	40
PID 2944 wrote to memory of 2680	2944	Fatality.exe	40
PID 2944 wrote to memory of 2848	2944	Fatality.exe	42
PID 2944 wrote to memory of 2848	2944	Fatality.exe	42
PID 2944 wrote to memory of 2848	2944	Fatality.exe	42
PID 2944 wrote to memory of 2844	2944	Fatality.exe	44
PID 2944 wrote to memory of 2844	2944	Fatality.exe	44
PID 2944 wrote to memory of 2844	2944	Fatality.exe	44
PID 2944 wrote to memory of 2784	2944	Fatality.exe	46
PID 2944 wrote to memory of 2784	2944	Fatality.exe	46
PID 2944 wrote to memory of 2784	2944	Fatality.exe	46
PID 2944 wrote to memory of 3028	2944	Fatality.exe	48
PID 2944 wrote to memory of 3028	2944	Fatality.exe	48
PID 2944 wrote to memory of 3028	2944	Fatality.exe	48
PID 2944 wrote to memory of 2940	2944	Fatality.exe	50
PID 2944 wrote to memory of 2940	2944	Fatality.exe	50
PID 2944 wrote to memory of 2940	2944	Fatality.exe	50
PID 2944 wrote to memory of 1636	2944	Fatality.exe	52
PID 2944 wrote to memory of 1636	2944	Fatality.exe	52
PID 2944 wrote to memory of 1636	2944	Fatality.exe	52
PID 1636 wrote to memory of 2388	1636	cmd.exe	54
PID 1636 wrote to memory of 2388	1636	cmd.exe	54
PID 1636 wrote to memory of 2388	1636	cmd.exe	54

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
3060	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:2944
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1056
- C:\Windows\system32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\Fatality.exe"
  2⤵
  - Views/modifies file attributes
  PID:3060
- 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:1964
- 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:2916
- 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:2884
- 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:2680
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2848
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:2844
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:2784
- 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:3028
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:2940
- 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:1636
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:2388

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\HXKNJBK52Y5TLDZF5VIP.temp

Filesize
7KB

MD5
e11a7c9538171dabb2e439c1c3817dc6

SHA1
9915b0054c19313a897730d1d45d0daf7665ed39

SHA256
cd5428645725faa6aea93e241be1107ac565656d64cafdc04174bda852dac440

SHA512
55fd04b735d3ee4e63cd0693e87f66a7553a581d0a3e60c1fb02998c22ae0a8171f53d6ac50b7a4f39b40da8196a5efdf9d4a77d4e6eabf27dc42cb69bc287bc

Download Submit
memory/1964-7-0x000000001B5D0000-0x000000001B8B2000-memory.dmp

Filesize
2.9MB

Download
memory/1964-8-0x0000000001F80000-0x0000000001F88000-memory.dmp

Filesize
32KB

Download
memory/2916-14-0x000000001B6C0000-0x000000001B9A2000-memory.dmp

Filesize
2.9MB

Download
memory/2916-15-0x0000000002670000-0x0000000002678000-memory.dmp

Filesize
32KB

Download
memory/2944-0-0x000007FEF5FA3000-0x000007FEF5FA4000-memory.dmp

Filesize
4KB

Download
memory/2944-1-0x0000000000F10000-0x0000000000F50000-memory.dmp

Filesize
256KB

Download
memory/2944-2-0x000007FEF5FA0000-0x000007FEF698C000-memory.dmp

Filesize
9.9MB

Download
memory/2944-46-0x000007FEF5FA0000-0x000007FEF698C000-memory.dmp

Filesize
9.9MB

Download
memory/3028-42-0x0000000002970000-0x0000000002978000-memory.dmp

Filesize
32KB

Download