umbral | b575e722311556b67bc4f2ff77470063e5453e8f9952ddcd33afec9bdefc3902

Analysis

max time kernel
139s
max time network
107s
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 18:00

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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
behavioral3/memory/536-1-0x0000026C80960000-0x0000026C809A0000-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
2524	powershell.exe
1988	powershell.exe
2244	powershell.exe
4760	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
30	discord.com
31	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
4604	cmd.exe
4540	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
1848	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4540	PING.EXE

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
536	Fatality.exe
4760	powershell.exe
4760	powershell.exe
2524	powershell.exe
2524	powershell.exe
1988	powershell.exe
1988	powershell.exe
4860	powershell.exe
4860	powershell.exe
2244	powershell.exe
2244	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	536	Fatality.exe
Token: SeIncreaseQuotaPrivilege	1580	wmic.exe
Token: SeSecurityPrivilege	1580	wmic.exe
Token: SeTakeOwnershipPrivilege	1580	wmic.exe
Token: SeLoadDriverPrivilege	1580	wmic.exe
Token: SeSystemProfilePrivilege	1580	wmic.exe
Token: SeSystemtimePrivilege	1580	wmic.exe
Token: SeProfSingleProcessPrivilege	1580	wmic.exe
Token: SeIncBasePriorityPrivilege	1580	wmic.exe
Token: SeCreatePagefilePrivilege	1580	wmic.exe
Token: SeBackupPrivilege	1580	wmic.exe
Token: SeRestorePrivilege	1580	wmic.exe
Token: SeShutdownPrivilege	1580	wmic.exe
Token: SeDebugPrivilege	1580	wmic.exe
Token: SeSystemEnvironmentPrivilege	1580	wmic.exe
Token: SeRemoteShutdownPrivilege	1580	wmic.exe
Token: SeUndockPrivilege	1580	wmic.exe
Token: SeManageVolumePrivilege	1580	wmic.exe
Token: 33	1580	wmic.exe
Token: 34	1580	wmic.exe
Token: 35	1580	wmic.exe
Token: 36	1580	wmic.exe
Token: SeIncreaseQuotaPrivilege	1580	wmic.exe
Token: SeSecurityPrivilege	1580	wmic.exe
Token: SeTakeOwnershipPrivilege	1580	wmic.exe
Token: SeLoadDriverPrivilege	1580	wmic.exe
Token: SeSystemProfilePrivilege	1580	wmic.exe
Token: SeSystemtimePrivilege	1580	wmic.exe
Token: SeProfSingleProcessPrivilege	1580	wmic.exe
Token: SeIncBasePriorityPrivilege	1580	wmic.exe
Token: SeCreatePagefilePrivilege	1580	wmic.exe
Token: SeBackupPrivilege	1580	wmic.exe
Token: SeRestorePrivilege	1580	wmic.exe
Token: SeShutdownPrivilege	1580	wmic.exe
Token: SeDebugPrivilege	1580	wmic.exe
Token: SeSystemEnvironmentPrivilege	1580	wmic.exe
Token: SeRemoteShutdownPrivilege	1580	wmic.exe
Token: SeUndockPrivilege	1580	wmic.exe
Token: SeManageVolumePrivilege	1580	wmic.exe
Token: 33	1580	wmic.exe
Token: 34	1580	wmic.exe
Token: 35	1580	wmic.exe
Token: 36	1580	wmic.exe
Token: SeDebugPrivilege	4760	powershell.exe
Token: SeDebugPrivilege	2524	powershell.exe
Token: SeDebugPrivilege	1988	powershell.exe
Token: SeDebugPrivilege	4860	powershell.exe
Token: SeIncreaseQuotaPrivilege	2868	wmic.exe
Token: SeSecurityPrivilege	2868	wmic.exe
Token: SeTakeOwnershipPrivilege	2868	wmic.exe
Token: SeLoadDriverPrivilege	2868	wmic.exe
Token: SeSystemProfilePrivilege	2868	wmic.exe
Token: SeSystemtimePrivilege	2868	wmic.exe
Token: SeProfSingleProcessPrivilege	2868	wmic.exe
Token: SeIncBasePriorityPrivilege	2868	wmic.exe
Token: SeCreatePagefilePrivilege	2868	wmic.exe
Token: SeBackupPrivilege	2868	wmic.exe
Token: SeRestorePrivilege	2868	wmic.exe
Token: SeShutdownPrivilege	2868	wmic.exe
Token: SeDebugPrivilege	2868	wmic.exe
Token: SeSystemEnvironmentPrivilege	2868	wmic.exe
Token: SeRemoteShutdownPrivilege	2868	wmic.exe
Token: SeUndockPrivilege	2868	wmic.exe
Token: SeManageVolumePrivilege	2868	wmic.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 536 wrote to memory of 1580	536	Fatality.exe	86
PID 536 wrote to memory of 1580	536	Fatality.exe	86
PID 536 wrote to memory of 2528	536	Fatality.exe	92
PID 536 wrote to memory of 2528	536	Fatality.exe	92
PID 536 wrote to memory of 4760	536	Fatality.exe	94
PID 536 wrote to memory of 4760	536	Fatality.exe	94
PID 536 wrote to memory of 2524	536	Fatality.exe	96
PID 536 wrote to memory of 2524	536	Fatality.exe	96
PID 536 wrote to memory of 1988	536	Fatality.exe	98
PID 536 wrote to memory of 1988	536	Fatality.exe	98
PID 536 wrote to memory of 4860	536	Fatality.exe	100
PID 536 wrote to memory of 4860	536	Fatality.exe	100
PID 536 wrote to memory of 2868	536	Fatality.exe	104
PID 536 wrote to memory of 2868	536	Fatality.exe	104
PID 536 wrote to memory of 436	536	Fatality.exe	106
PID 536 wrote to memory of 436	536	Fatality.exe	106
PID 536 wrote to memory of 3792	536	Fatality.exe	108
PID 536 wrote to memory of 3792	536	Fatality.exe	108
PID 536 wrote to memory of 2244	536	Fatality.exe	110
PID 536 wrote to memory of 2244	536	Fatality.exe	110
PID 536 wrote to memory of 1848	536	Fatality.exe	113
PID 536 wrote to memory of 1848	536	Fatality.exe	113
PID 536 wrote to memory of 4604	536	Fatality.exe	115
PID 536 wrote to memory of 4604	536	Fatality.exe	115
PID 4604 wrote to memory of 4540	4604	cmd.exe	117
PID 4604 wrote to memory of 4540	4604	cmd.exe	117

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2528	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:536
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1580
- C:\Windows\SYSTEM32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\Fatality.exe"
  2⤵
  - Views/modifies file attributes
  PID:2528
- 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:4760
- 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:2524
- 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:1988
- 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:4860
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2868
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:436
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:3792
- 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:2244
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:1848
- 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:4604
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:4540

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
ab1214368d16125b5f97e5014a91cfd8

SHA1
73ecf983976ebaa0c27c6bddc8d956b27c934197

SHA256
62030acdc8413f7658ed0e27c658ef635766c971862f777bea9dcb4a42c83955

SHA512
7e9d0aa20c3ee9674e09b4b6ac0f95955ba047f8714d8d26915feb2e242f011af1fa5168aa18292f183dab46647fccd182d2ca02029fe6ffd3213d167c6cb440

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

Filesize
1KB

MD5
276798eeb29a49dc6e199768bc9c2e71

SHA1
5fdc8ccb897ac2df7476fbb07517aca5b7a6205b

SHA256
cd0a1056e8f1b6cb5cb328532239d802f4e2aa8f8fcdc0fcb487684bd68e0dcc

SHA512
0d34fce64bbefc57d64fa6e03ca886952263d5f24df9c1c4cce6a1e8f5a47a9a21e9820f8d38caa7f7b43a52336ce00b738ea18419aaa7c788b72e04ce19e4f2

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

Filesize
1KB

MD5
b2926056b1c02fa9c36eb7723c185c45

SHA1
1f97cb7d596ade08c5bcb6224cab218a55ae8f07

SHA256
79b0989a9d687788fb7fe651de773419fa66a9b2e84d67088e5c0c51af597371

SHA512
f828040a0312e32ea85738e96256b4fe15d3860cfb8ca171fcd2105989a0e28f6231b159fbe6c993f827f7915ac2d798afc9d84c55638dd0c6473690ff1656ae

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_2r45cihm.efj.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/536-72-0x0000026C9B080000-0x0000026C9B092000-memory.dmp

Filesize
72KB

Download
memory/536-35-0x0000026C9B060000-0x0000026C9B07E000-memory.dmp

Filesize
120KB

Download
memory/536-90-0x00007FF850B80000-0x00007FF851641000-memory.dmp

Filesize
10.8MB

Download
memory/536-71-0x0000026C80E70000-0x0000026C80E7A000-memory.dmp

Filesize
40KB

Download
memory/536-2-0x00007FF850B80000-0x00007FF851641000-memory.dmp

Filesize
10.8MB

Download
memory/536-33-0x0000026C9B0C0000-0x0000026C9B136000-memory.dmp

Filesize
472KB

Download
memory/536-34-0x0000026C9B140000-0x0000026C9B190000-memory.dmp

Filesize
320KB

Download
memory/536-0-0x00007FF850B83000-0x00007FF850B85000-memory.dmp

Filesize
8KB

Download
memory/536-1-0x0000026C80960000-0x0000026C809A0000-memory.dmp

Filesize
256KB

Download
memory/4760-13-0x0000023F552B0000-0x0000023F552D2000-memory.dmp

Filesize
136KB

Download
memory/4760-14-0x00007FF850B80000-0x00007FF851641000-memory.dmp

Filesize
10.8MB

Download
memory/4760-3-0x00007FF850B80000-0x00007FF851641000-memory.dmp

Filesize
10.8MB

Download
memory/4760-15-0x00007FF850B80000-0x00007FF851641000-memory.dmp

Filesize
10.8MB

Download
memory/4760-18-0x00007FF850B80000-0x00007FF851641000-memory.dmp

Filesize
10.8MB

Download