umbral | b575e722311556b67bc4f2ff77470063e5453e8f9952ddcd33afec9bdefc3902

Analysis

max time kernel
119s
max time network
121s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
26-08-2024 18:41

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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/2852-1-0x00000000009D0000-0x0000000000A10000-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
1096	powershell.exe
2004	powershell.exe
1444	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
2304	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
2304	cmd.exe
2500	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
2440	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2500	PING.EXE

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2852	Fatality.exe
2972	powershell.exe
1096	powershell.exe
2004	powershell.exe
2456	powershell.exe
1444	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2852	Fatality.exe
Token: SeIncreaseQuotaPrivilege	2640	wmic.exe
Token: SeSecurityPrivilege	2640	wmic.exe
Token: SeTakeOwnershipPrivilege	2640	wmic.exe
Token: SeLoadDriverPrivilege	2640	wmic.exe
Token: SeSystemProfilePrivilege	2640	wmic.exe
Token: SeSystemtimePrivilege	2640	wmic.exe
Token: SeProfSingleProcessPrivilege	2640	wmic.exe
Token: SeIncBasePriorityPrivilege	2640	wmic.exe
Token: SeCreatePagefilePrivilege	2640	wmic.exe
Token: SeBackupPrivilege	2640	wmic.exe
Token: SeRestorePrivilege	2640	wmic.exe
Token: SeShutdownPrivilege	2640	wmic.exe
Token: SeDebugPrivilege	2640	wmic.exe
Token: SeSystemEnvironmentPrivilege	2640	wmic.exe
Token: SeRemoteShutdownPrivilege	2640	wmic.exe
Token: SeUndockPrivilege	2640	wmic.exe
Token: SeManageVolumePrivilege	2640	wmic.exe
Token: 33	2640	wmic.exe
Token: 34	2640	wmic.exe
Token: 35	2640	wmic.exe
Token: SeIncreaseQuotaPrivilege	2640	wmic.exe
Token: SeSecurityPrivilege	2640	wmic.exe
Token: SeTakeOwnershipPrivilege	2640	wmic.exe
Token: SeLoadDriverPrivilege	2640	wmic.exe
Token: SeSystemProfilePrivilege	2640	wmic.exe
Token: SeSystemtimePrivilege	2640	wmic.exe
Token: SeProfSingleProcessPrivilege	2640	wmic.exe
Token: SeIncBasePriorityPrivilege	2640	wmic.exe
Token: SeCreatePagefilePrivilege	2640	wmic.exe
Token: SeBackupPrivilege	2640	wmic.exe
Token: SeRestorePrivilege	2640	wmic.exe
Token: SeShutdownPrivilege	2640	wmic.exe
Token: SeDebugPrivilege	2640	wmic.exe
Token: SeSystemEnvironmentPrivilege	2640	wmic.exe
Token: SeRemoteShutdownPrivilege	2640	wmic.exe
Token: SeUndockPrivilege	2640	wmic.exe
Token: SeManageVolumePrivilege	2640	wmic.exe
Token: 33	2640	wmic.exe
Token: 34	2640	wmic.exe
Token: 35	2640	wmic.exe
Token: SeDebugPrivilege	2972	powershell.exe
Token: SeDebugPrivilege	1096	powershell.exe
Token: SeDebugPrivilege	2004	powershell.exe
Token: SeDebugPrivilege	2456	powershell.exe
Token: SeIncreaseQuotaPrivilege	1740	wmic.exe
Token: SeSecurityPrivilege	1740	wmic.exe
Token: SeTakeOwnershipPrivilege	1740	wmic.exe
Token: SeLoadDriverPrivilege	1740	wmic.exe
Token: SeSystemProfilePrivilege	1740	wmic.exe
Token: SeSystemtimePrivilege	1740	wmic.exe
Token: SeProfSingleProcessPrivilege	1740	wmic.exe
Token: SeIncBasePriorityPrivilege	1740	wmic.exe
Token: SeCreatePagefilePrivilege	1740	wmic.exe
Token: SeBackupPrivilege	1740	wmic.exe
Token: SeRestorePrivilege	1740	wmic.exe
Token: SeShutdownPrivilege	1740	wmic.exe
Token: SeDebugPrivilege	1740	wmic.exe
Token: SeSystemEnvironmentPrivilege	1740	wmic.exe
Token: SeRemoteShutdownPrivilege	1740	wmic.exe
Token: SeUndockPrivilege	1740	wmic.exe
Token: SeManageVolumePrivilege	1740	wmic.exe
Token: 33	1740	wmic.exe
Token: 34	1740	wmic.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 2852 wrote to memory of 2640	2852	Fatality.exe	30
PID 2852 wrote to memory of 2640	2852	Fatality.exe	30
PID 2852 wrote to memory of 2640	2852	Fatality.exe	30
PID 2852 wrote to memory of 2320	2852	Fatality.exe	33
PID 2852 wrote to memory of 2320	2852	Fatality.exe	33
PID 2852 wrote to memory of 2320	2852	Fatality.exe	33
PID 2852 wrote to memory of 2972	2852	Fatality.exe	35
PID 2852 wrote to memory of 2972	2852	Fatality.exe	35
PID 2852 wrote to memory of 2972	2852	Fatality.exe	35
PID 2852 wrote to memory of 1096	2852	Fatality.exe	37
PID 2852 wrote to memory of 1096	2852	Fatality.exe	37
PID 2852 wrote to memory of 1096	2852	Fatality.exe	37
PID 2852 wrote to memory of 2004	2852	Fatality.exe	39
PID 2852 wrote to memory of 2004	2852	Fatality.exe	39
PID 2852 wrote to memory of 2004	2852	Fatality.exe	39
PID 2852 wrote to memory of 2456	2852	Fatality.exe	41
PID 2852 wrote to memory of 2456	2852	Fatality.exe	41
PID 2852 wrote to memory of 2456	2852	Fatality.exe	41
PID 2852 wrote to memory of 1740	2852	Fatality.exe	43
PID 2852 wrote to memory of 1740	2852	Fatality.exe	43
PID 2852 wrote to memory of 1740	2852	Fatality.exe	43
PID 2852 wrote to memory of 2044	2852	Fatality.exe	45
PID 2852 wrote to memory of 2044	2852	Fatality.exe	45
PID 2852 wrote to memory of 2044	2852	Fatality.exe	45
PID 2852 wrote to memory of 1856	2852	Fatality.exe	47
PID 2852 wrote to memory of 1856	2852	Fatality.exe	47
PID 2852 wrote to memory of 1856	2852	Fatality.exe	47
PID 2852 wrote to memory of 1444	2852	Fatality.exe	49
PID 2852 wrote to memory of 1444	2852	Fatality.exe	49
PID 2852 wrote to memory of 1444	2852	Fatality.exe	49
PID 2852 wrote to memory of 2440	2852	Fatality.exe	51
PID 2852 wrote to memory of 2440	2852	Fatality.exe	51
PID 2852 wrote to memory of 2440	2852	Fatality.exe	51
PID 2852 wrote to memory of 2304	2852	Fatality.exe	53
PID 2852 wrote to memory of 2304	2852	Fatality.exe	53
PID 2852 wrote to memory of 2304	2852	Fatality.exe	53
PID 2304 wrote to memory of 2500	2304	cmd.exe	55
PID 2304 wrote to memory of 2500	2304	cmd.exe	55
PID 2304 wrote to memory of 2500	2304	cmd.exe	55

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2320	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:2852
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2640
- C:\Windows\system32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\Fatality.exe"
  2⤵
  - Views/modifies file attributes
  PID:2320
- 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: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:1096
- 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:2004
- 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:2456
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1740
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:2044
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:1856
- 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:1444
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:2440
- 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:2304
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:2500

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
6a87424416022e59c96ddd89e48208fa

SHA1
c65fc125b38d9938a009e1ec07d60d53e047cda7

SHA256
713b2ff46e0a71b1289204a2a48650153250de2ae35ff25596e4b95b1a15774c

SHA512
8683fa590016b66bcea8449cc9752938b0b01472d077a8667da2a27c7b9b49f69426b24db2df44a947ec507196ca4982a8ee68fca776af2ea1f03bf01dd93a1d

Download Submit
memory/1096-14-0x000000001B640000-0x000000001B922000-memory.dmp

Filesize
2.9MB

Download
memory/1096-15-0x0000000002860000-0x0000000002868000-memory.dmp

Filesize
32KB

Download
memory/1444-43-0x0000000001D00000-0x0000000001D08000-memory.dmp

Filesize
32KB

Download
memory/2852-0-0x000007FEF59C3000-0x000007FEF59C4000-memory.dmp

Filesize
4KB

Download
memory/2852-1-0x00000000009D0000-0x0000000000A10000-memory.dmp

Filesize
256KB

Download
memory/2852-2-0x000007FEF59C0000-0x000007FEF63AC000-memory.dmp

Filesize
9.9MB

Download
memory/2852-47-0x000007FEF59C0000-0x000007FEF63AC000-memory.dmp

Filesize
9.9MB

Download
memory/2972-7-0x000000001B6A0000-0x000000001B982000-memory.dmp

Filesize
2.9MB

Download
memory/2972-8-0x0000000002990000-0x0000000002998000-memory.dmp

Filesize
32KB

Download