umbral | b575e722311556b67bc4f2ff77470063e5453e8f9952ddcd33afec9bdefc3902

Analysis

max time kernel
134s
max time network
104s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-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
behavioral2/memory/3208-1-0x000002961B900000-0x000002961B940000-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
1712	powershell.exe
1336	powershell.exe
1896	powershell.exe
3880	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
26	discord.com
27	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
5	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
3544	cmd.exe
1948	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
4328	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1948	PING.EXE

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
3208	Fatality.exe
1712	powershell.exe
1712	powershell.exe
1336	powershell.exe
1336	powershell.exe
1896	powershell.exe
1896	powershell.exe
5016	powershell.exe
5016	powershell.exe
3880	powershell.exe
3880	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3208	Fatality.exe
Token: SeIncreaseQuotaPrivilege	3724	wmic.exe
Token: SeSecurityPrivilege	3724	wmic.exe
Token: SeTakeOwnershipPrivilege	3724	wmic.exe
Token: SeLoadDriverPrivilege	3724	wmic.exe
Token: SeSystemProfilePrivilege	3724	wmic.exe
Token: SeSystemtimePrivilege	3724	wmic.exe
Token: SeProfSingleProcessPrivilege	3724	wmic.exe
Token: SeIncBasePriorityPrivilege	3724	wmic.exe
Token: SeCreatePagefilePrivilege	3724	wmic.exe
Token: SeBackupPrivilege	3724	wmic.exe
Token: SeRestorePrivilege	3724	wmic.exe
Token: SeShutdownPrivilege	3724	wmic.exe
Token: SeDebugPrivilege	3724	wmic.exe
Token: SeSystemEnvironmentPrivilege	3724	wmic.exe
Token: SeRemoteShutdownPrivilege	3724	wmic.exe
Token: SeUndockPrivilege	3724	wmic.exe
Token: SeManageVolumePrivilege	3724	wmic.exe
Token: 33	3724	wmic.exe
Token: 34	3724	wmic.exe
Token: 35	3724	wmic.exe
Token: 36	3724	wmic.exe
Token: SeIncreaseQuotaPrivilege	3724	wmic.exe
Token: SeSecurityPrivilege	3724	wmic.exe
Token: SeTakeOwnershipPrivilege	3724	wmic.exe
Token: SeLoadDriverPrivilege	3724	wmic.exe
Token: SeSystemProfilePrivilege	3724	wmic.exe
Token: SeSystemtimePrivilege	3724	wmic.exe
Token: SeProfSingleProcessPrivilege	3724	wmic.exe
Token: SeIncBasePriorityPrivilege	3724	wmic.exe
Token: SeCreatePagefilePrivilege	3724	wmic.exe
Token: SeBackupPrivilege	3724	wmic.exe
Token: SeRestorePrivilege	3724	wmic.exe
Token: SeShutdownPrivilege	3724	wmic.exe
Token: SeDebugPrivilege	3724	wmic.exe
Token: SeSystemEnvironmentPrivilege	3724	wmic.exe
Token: SeRemoteShutdownPrivilege	3724	wmic.exe
Token: SeUndockPrivilege	3724	wmic.exe
Token: SeManageVolumePrivilege	3724	wmic.exe
Token: 33	3724	wmic.exe
Token: 34	3724	wmic.exe
Token: 35	3724	wmic.exe
Token: 36	3724	wmic.exe
Token: SeDebugPrivilege	1712	powershell.exe
Token: SeDebugPrivilege	1336	powershell.exe
Token: SeDebugPrivilege	1896	powershell.exe
Token: SeDebugPrivilege	5016	powershell.exe
Token: SeIncreaseQuotaPrivilege	1284	wmic.exe
Token: SeSecurityPrivilege	1284	wmic.exe
Token: SeTakeOwnershipPrivilege	1284	wmic.exe
Token: SeLoadDriverPrivilege	1284	wmic.exe
Token: SeSystemProfilePrivilege	1284	wmic.exe
Token: SeSystemtimePrivilege	1284	wmic.exe
Token: SeProfSingleProcessPrivilege	1284	wmic.exe
Token: SeIncBasePriorityPrivilege	1284	wmic.exe
Token: SeCreatePagefilePrivilege	1284	wmic.exe
Token: SeBackupPrivilege	1284	wmic.exe
Token: SeRestorePrivilege	1284	wmic.exe
Token: SeShutdownPrivilege	1284	wmic.exe
Token: SeDebugPrivilege	1284	wmic.exe
Token: SeSystemEnvironmentPrivilege	1284	wmic.exe
Token: SeRemoteShutdownPrivilege	1284	wmic.exe
Token: SeUndockPrivilege	1284	wmic.exe
Token: SeManageVolumePrivilege	1284	wmic.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 3208 wrote to memory of 3724	3208	Fatality.exe	84
PID 3208 wrote to memory of 3724	3208	Fatality.exe	84
PID 3208 wrote to memory of 3468	3208	Fatality.exe	90
PID 3208 wrote to memory of 3468	3208	Fatality.exe	90
PID 3208 wrote to memory of 1712	3208	Fatality.exe	92
PID 3208 wrote to memory of 1712	3208	Fatality.exe	92
PID 3208 wrote to memory of 1336	3208	Fatality.exe	94
PID 3208 wrote to memory of 1336	3208	Fatality.exe	94
PID 3208 wrote to memory of 1896	3208	Fatality.exe	96
PID 3208 wrote to memory of 1896	3208	Fatality.exe	96
PID 3208 wrote to memory of 5016	3208	Fatality.exe	98
PID 3208 wrote to memory of 5016	3208	Fatality.exe	98
PID 3208 wrote to memory of 1284	3208	Fatality.exe	100
PID 3208 wrote to memory of 1284	3208	Fatality.exe	100
PID 3208 wrote to memory of 3796	3208	Fatality.exe	102
PID 3208 wrote to memory of 3796	3208	Fatality.exe	102
PID 3208 wrote to memory of 2964	3208	Fatality.exe	104
PID 3208 wrote to memory of 2964	3208	Fatality.exe	104
PID 3208 wrote to memory of 3880	3208	Fatality.exe	106
PID 3208 wrote to memory of 3880	3208	Fatality.exe	106
PID 3208 wrote to memory of 4328	3208	Fatality.exe	110
PID 3208 wrote to memory of 4328	3208	Fatality.exe	110
PID 3208 wrote to memory of 3544	3208	Fatality.exe	112
PID 3208 wrote to memory of 3544	3208	Fatality.exe	112
PID 3544 wrote to memory of 1948	3544	cmd.exe	114
PID 3544 wrote to memory of 1948	3544	cmd.exe	114

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
3468	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:3208
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:3724
- C:\Windows\SYSTEM32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\Fatality.exe"
  2⤵
  - Views/modifies file attributes
  PID:3468
- 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:1712
- 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:1336
- 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:1896
- 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:5016
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1284
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:3796
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:2964
- 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:3880
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:4328
- 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:3544
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:1948

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
d85ba6ff808d9e5444a4b369f5bc2730

SHA1
31aa9d96590fff6981b315e0b391b575e4c0804a

SHA256
84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

SHA512
8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

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

Filesize
944B

MD5
d28a889fd956d5cb3accfbaf1143eb6f

SHA1
157ba54b365341f8ff06707d996b3635da8446f7

SHA256
21e5d7ccf80a293e6ba30ed728846ca19c929c52b96e2c8d34e27cd2234f1d45

SHA512
0b6d88deb9be85722e6a78d5886d49f2caf407a59e128d2b4ed74c1356f9928c40048a62731959f2460e9ff9d9feee311043d2a37abe3bb92c2b76a44281478c

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

Filesize
948B

MD5
c9b6705519e1eef08f86c4ba5f4286f3

SHA1
6c6b179e452ecee2673a1d4fe128f1c06f70577f

SHA256
0f9cad44a79126871580e19b01dc3f880c5173b1faaf8b9018d5d1f829714705

SHA512
6d8f85a7a8b0b124530f36a157cd0441b5c1eacdc35e274af9fbf0569d03d1d5e468651a5b2425f0215c282ecfa7b1ffeaeeaf18612822f00bd14306d30640c7

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

Filesize
1KB

MD5
d3235ed022a42ec4338123ab87144afa

SHA1
5058608bc0deb720a585a2304a8f7cf63a50a315

SHA256
10663f5a1cb0afe5578f61ebaae2aafb363544e47b48521f9c23be9e6e431b27

SHA512
236761b7c68feca8bd62cba90cff0b25fac5613837aaa5d29ae823ace8b06a2057553cf7e72b11ccc59b6c289e471ca1bbac1a880aef5e2868875371a17c1abf

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

Filesize
1KB

MD5
063fa26d779f114734bd9130125608c3

SHA1
3a1b8fb1a319f6c40a71b117d6b07106d2a53857

SHA256
e8f8cb3e295999c4b311836d5fe1213b4721d56ab14af3eacd1bcdd051b5a66b

SHA512
fbe868cad1196fa3630581f269e8c512af1ed7b1d1e5708c369ed28810d37e48301370f19260657f47a560165113d28437741db39b91aaff69776143598b4391

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_usnertk1.uz4.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1712-13-0x00007FFA3F990000-0x00007FFA40451000-memory.dmp

Filesize
10.8MB

Download
memory/1712-14-0x00007FFA3F990000-0x00007FFA40451000-memory.dmp

Filesize
10.8MB

Download
memory/1712-15-0x00007FFA3F990000-0x00007FFA40451000-memory.dmp

Filesize
10.8MB

Download
memory/1712-18-0x00007FFA3F990000-0x00007FFA40451000-memory.dmp

Filesize
10.8MB

Download
memory/1712-8-0x000002449B530000-0x000002449B552000-memory.dmp

Filesize
136KB

Download
memory/3208-33-0x0000029636090000-0x0000029636106000-memory.dmp

Filesize
472KB

Download
memory/3208-34-0x000002961D710000-0x000002961D760000-memory.dmp

Filesize
320KB

Download
memory/3208-35-0x000002961D760000-0x000002961D77E000-memory.dmp

Filesize
120KB

Download
memory/3208-1-0x000002961B900000-0x000002961B940000-memory.dmp

Filesize
256KB

Download
memory/3208-0-0x00007FFA3F993000-0x00007FFA3F995000-memory.dmp

Filesize
8KB

Download
memory/3208-71-0x000002961D6C0000-0x000002961D6CA000-memory.dmp

Filesize
40KB

Download
memory/3208-72-0x000002961D6F0000-0x000002961D702000-memory.dmp

Filesize
72KB

Download
memory/3208-2-0x00007FFA3F990000-0x00007FFA40451000-memory.dmp

Filesize
10.8MB

Download
memory/3208-90-0x00007FFA3F990000-0x00007FFA40451000-memory.dmp

Filesize
10.8MB

Download