umbral | b578fa1cba248ad18bd23bf52c3ac0727fca85c7415bb26ca6d7093e04a8045b

Analysis

max time kernel
9s
max time network
9s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
10-05-2024 17:59

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General

Target

External discord.gg61.exe
Size

229KB
MD5

1b3fa21117b5da00f973089c28f2039e
SHA1

7c57451a38edab8b758e6343415aad2037ea6603
SHA256

b578fa1cba248ad18bd23bf52c3ac0727fca85c7415bb26ca6d7093e04a8045b
SHA512

b1fc5e584b2f67d52f0378b2870df950220e20d68d5ef33208eed76ece08f7984497f0499d2ba801d288b04d22ebd5877e681fde08fe019c290089f0b903c9cd
SSDEEP

6144:lloZM+rIkd8g+EtXHkv/iD4yLYussyVtGITOMdRYC+b8e1mDMi:noZtL+EP8yL/ssyVtGITOMdRYtCF

Score

10^/10

umbral execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral1/memory/3232-0-0x000001CCB1700000-0x000001CCB1740000-memory.dmp	family_umbral

Umbral
Umbral stealer is an opensource moduler stealer written in C#.
stealer umbral

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
4924	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	External discord.gg61.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
17	discord.com
16	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
10	ip-api.com

Checks SCSI registry key(s) 3 TTPs 3 IoCs

SCSI information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000	taskmgr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\Properties\{b725f130-47ef-101a-a5f1-02608c9eebac}\000A	taskmgr.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\FriendlyName	taskmgr.exe

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
1776	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2972	PING.EXE

Suspicious behavior: EnumeratesProcesses 18 IoCs

pid	Process
3232	External discord.gg61.exe
4924	powershell.exe
4924	powershell.exe
2332	powershell.exe
2332	powershell.exe
2636	powershell.exe
2636	powershell.exe
3620	taskmgr.exe
3620	taskmgr.exe
4956	powershell.exe
4956	powershell.exe
3620	taskmgr.exe
3620	taskmgr.exe
3752	powershell.exe
3752	powershell.exe
3620	taskmgr.exe
3620	taskmgr.exe
3620	taskmgr.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3232	External discord.gg61.exe
Token: SeIncreaseQuotaPrivilege	1000	wmic.exe
Token: SeSecurityPrivilege	1000	wmic.exe
Token: SeTakeOwnershipPrivilege	1000	wmic.exe
Token: SeLoadDriverPrivilege	1000	wmic.exe
Token: SeSystemProfilePrivilege	1000	wmic.exe
Token: SeSystemtimePrivilege	1000	wmic.exe
Token: SeProfSingleProcessPrivilege	1000	wmic.exe
Token: SeIncBasePriorityPrivilege	1000	wmic.exe
Token: SeCreatePagefilePrivilege	1000	wmic.exe
Token: SeBackupPrivilege	1000	wmic.exe
Token: SeRestorePrivilege	1000	wmic.exe
Token: SeShutdownPrivilege	1000	wmic.exe
Token: SeDebugPrivilege	1000	wmic.exe
Token: SeSystemEnvironmentPrivilege	1000	wmic.exe
Token: SeRemoteShutdownPrivilege	1000	wmic.exe
Token: SeUndockPrivilege	1000	wmic.exe
Token: SeManageVolumePrivilege	1000	wmic.exe
Token: 33	1000	wmic.exe
Token: 34	1000	wmic.exe
Token: 35	1000	wmic.exe
Token: 36	1000	wmic.exe
Token: SeIncreaseQuotaPrivilege	1000	wmic.exe
Token: SeSecurityPrivilege	1000	wmic.exe
Token: SeTakeOwnershipPrivilege	1000	wmic.exe
Token: SeLoadDriverPrivilege	1000	wmic.exe
Token: SeSystemProfilePrivilege	1000	wmic.exe
Token: SeSystemtimePrivilege	1000	wmic.exe
Token: SeProfSingleProcessPrivilege	1000	wmic.exe
Token: SeIncBasePriorityPrivilege	1000	wmic.exe
Token: SeCreatePagefilePrivilege	1000	wmic.exe
Token: SeBackupPrivilege	1000	wmic.exe
Token: SeRestorePrivilege	1000	wmic.exe
Token: SeShutdownPrivilege	1000	wmic.exe
Token: SeDebugPrivilege	1000	wmic.exe
Token: SeSystemEnvironmentPrivilege	1000	wmic.exe
Token: SeRemoteShutdownPrivilege	1000	wmic.exe
Token: SeUndockPrivilege	1000	wmic.exe
Token: SeManageVolumePrivilege	1000	wmic.exe
Token: 33	1000	wmic.exe
Token: 34	1000	wmic.exe
Token: 35	1000	wmic.exe
Token: 36	1000	wmic.exe
Token: SeDebugPrivilege	4924	powershell.exe
Token: SeDebugPrivilege	2332	powershell.exe
Token: SeDebugPrivilege	2636	powershell.exe
Token: SeDebugPrivilege	3620	taskmgr.exe
Token: SeSystemProfilePrivilege	3620	taskmgr.exe
Token: SeCreateGlobalPrivilege	3620	taskmgr.exe
Token: SeDebugPrivilege	4956	powershell.exe
Token: SeIncreaseQuotaPrivilege	3312	wmic.exe
Token: SeSecurityPrivilege	3312	wmic.exe
Token: SeTakeOwnershipPrivilege	3312	wmic.exe
Token: SeLoadDriverPrivilege	3312	wmic.exe
Token: SeSystemProfilePrivilege	3312	wmic.exe
Token: SeSystemtimePrivilege	3312	wmic.exe
Token: SeProfSingleProcessPrivilege	3312	wmic.exe
Token: SeIncBasePriorityPrivilege	3312	wmic.exe
Token: SeCreatePagefilePrivilege	3312	wmic.exe
Token: SeBackupPrivilege	3312	wmic.exe
Token: SeRestorePrivilege	3312	wmic.exe
Token: SeShutdownPrivilege	3312	wmic.exe
Token: SeDebugPrivilege	3312	wmic.exe
Token: SeSystemEnvironmentPrivilege	3312	wmic.exe

Suspicious use of FindShellTrayWindow 33 IoCs

pid	Process
3620	taskmgr.exe
3620	taskmgr.exe
3620	taskmgr.exe
3620	taskmgr.exe
3620	taskmgr.exe
3620	taskmgr.exe
3620	taskmgr.exe
3620	taskmgr.exe
3620	taskmgr.exe
3620	taskmgr.exe
3620	taskmgr.exe
3620	taskmgr.exe
3620	taskmgr.exe
3620	taskmgr.exe
3620	taskmgr.exe
3620	taskmgr.exe
3620	taskmgr.exe
3620	taskmgr.exe
3620	taskmgr.exe
3620	taskmgr.exe
3620	taskmgr.exe
3620	taskmgr.exe
3620	taskmgr.exe
3620	taskmgr.exe
3620	taskmgr.exe
3620	taskmgr.exe
3620	taskmgr.exe
3620	taskmgr.exe
3620	taskmgr.exe
3620	taskmgr.exe
3620	taskmgr.exe
3620	taskmgr.exe
3620	taskmgr.exe

Suspicious use of SendNotifyMessage 33 IoCs

pid	Process
3620	taskmgr.exe
3620	taskmgr.exe
3620	taskmgr.exe
3620	taskmgr.exe
3620	taskmgr.exe
3620	taskmgr.exe
3620	taskmgr.exe
3620	taskmgr.exe
3620	taskmgr.exe
3620	taskmgr.exe
3620	taskmgr.exe
3620	taskmgr.exe
3620	taskmgr.exe
3620	taskmgr.exe
3620	taskmgr.exe
3620	taskmgr.exe
3620	taskmgr.exe
3620	taskmgr.exe
3620	taskmgr.exe
3620	taskmgr.exe
3620	taskmgr.exe
3620	taskmgr.exe
3620	taskmgr.exe
3620	taskmgr.exe
3620	taskmgr.exe
3620	taskmgr.exe
3620	taskmgr.exe
3620	taskmgr.exe
3620	taskmgr.exe
3620	taskmgr.exe
3620	taskmgr.exe
3620	taskmgr.exe
3620	taskmgr.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 3232 wrote to memory of 1000	3232	External discord.gg61.exe	82
PID 3232 wrote to memory of 1000	3232	External discord.gg61.exe	82
PID 3232 wrote to memory of 4032	3232	External discord.gg61.exe	85
PID 3232 wrote to memory of 4032	3232	External discord.gg61.exe	85
PID 3232 wrote to memory of 4924	3232	External discord.gg61.exe	87
PID 3232 wrote to memory of 4924	3232	External discord.gg61.exe	87
PID 3232 wrote to memory of 2332	3232	External discord.gg61.exe	89
PID 3232 wrote to memory of 2332	3232	External discord.gg61.exe	89
PID 3232 wrote to memory of 2636	3232	External discord.gg61.exe	91
PID 3232 wrote to memory of 2636	3232	External discord.gg61.exe	91
PID 3232 wrote to memory of 4956	3232	External discord.gg61.exe	94
PID 3232 wrote to memory of 4956	3232	External discord.gg61.exe	94
PID 3232 wrote to memory of 3312	3232	External discord.gg61.exe	96
PID 3232 wrote to memory of 3312	3232	External discord.gg61.exe	96
PID 3232 wrote to memory of 2860	3232	External discord.gg61.exe	98
PID 3232 wrote to memory of 2860	3232	External discord.gg61.exe	98
PID 3232 wrote to memory of 3664	3232	External discord.gg61.exe	100
PID 3232 wrote to memory of 3664	3232	External discord.gg61.exe	100
PID 3232 wrote to memory of 3752	3232	External discord.gg61.exe	102
PID 3232 wrote to memory of 3752	3232	External discord.gg61.exe	102
PID 3232 wrote to memory of 1776	3232	External discord.gg61.exe	104
PID 3232 wrote to memory of 1776	3232	External discord.gg61.exe	104
PID 3232 wrote to memory of 336	3232	External discord.gg61.exe	106
PID 3232 wrote to memory of 336	3232	External discord.gg61.exe	106
PID 336 wrote to memory of 2972	336	cmd.exe	108
PID 336 wrote to memory of 2972	336	cmd.exe	108

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
4032	attrib.exe

C:\Users\Admin\AppData\Local\Temp\External discord.gg61.exe
"C:\Users\Admin\AppData\Local\Temp\External discord.gg61.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3232
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1000
- C:\Windows\SYSTEM32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\External discord.gg61.exe"
  2⤵
  - Views/modifies file attributes
  PID:4032
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\External discord.gg61.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4924
- 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⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2332
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Get-ItemPropertyValue -Path HKCU:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2636
- 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:4956
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:3312
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:2860
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:3664
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Get-ItemPropertyValue -Path 'HKLM:System\CurrentControlSet\Control\Session Manager\Environment' -Name PROCESSOR_IDENTIFIER
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:3752
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:1776
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\External discord.gg61.exe" && pause
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:336
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - Runs ping.exe
    PID:2972

C:\Windows\system32\taskmgr.exe
"C:\Windows\system32\taskmgr.exe" /4
1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:3620

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

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

Remote System Discovery

T1018

System Information Discovery

T1082

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
6d3e9c29fe44e90aae6ed30ccf799ca8

SHA1
c7974ef72264bbdf13a2793ccf1aed11bc565dce

SHA256
2360634e63e8f0b5748e2c56ebb8f4aa78e71008ea7b5c9ca1c49be03b49557d

SHA512
60c38c4367352537545d859f64b9c5cbada94240478d1d039fd27b5ecba4dc1c90051557c16d802269703b873546ead416279c0a80c6fd5e49ad361cef22596a

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

Filesize
948B

MD5
c65738617888921a153bd9b1ef516ee7

SHA1
5245e71ea3c181d76320c857b639272ac9e079b1

SHA256
4640ba4001fd16a593315299cbdd4988dc2c7075820687f1018aac40aca95c26

SHA512
2e2a0ebd93f9d8dd07a7599054bce232683e9add9a35e77b584618040bcfd84a42545352519ec4736cc379002210b6f3ed2d905591c6925c0981b0392b495bfa

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
2a35dc32cc36a0b56e67168ff1c84fb7

SHA1
58fe1ed2b583eaae1b977f8add403e1db1c72824

SHA256
8da8e29111b4f08157de5336137379c590b92f4d900b0b4189b9d576c037276d

SHA512
576ca0bd9f44674d4f35e8e14996edd7aecabc693114bdf8939332a8a9fb0e4f0d93154b467cab7947b888af0c81a69f26f97e182d2841a76256f7736d94b389

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_322amhu0.qe4.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/3232-103-0x00007FF9036E0000-0x00007FF9041A1000-memory.dmp

Filesize
10.8MB

Download
memory/3232-72-0x000001CCCBF40000-0x000001CCCBF52000-memory.dmp

Filesize
72KB

Download
memory/3232-71-0x000001CCCBE30000-0x000001CCCBE3A000-memory.dmp

Filesize
40KB

Download
memory/3232-0-0x000001CCB1700000-0x000001CCB1740000-memory.dmp

Filesize
256KB

Download
memory/3232-2-0x00007FF9036E0000-0x00007FF9041A1000-memory.dmp

Filesize
10.8MB

Download
memory/3232-33-0x000001CCCBE70000-0x000001CCCBEE6000-memory.dmp

Filesize
472KB

Download
memory/3232-34-0x000001CCCBEF0000-0x000001CCCBF40000-memory.dmp

Filesize
320KB

Download
memory/3232-35-0x000001CCB1CA0000-0x000001CCB1CBE000-memory.dmp

Filesize
120KB

Download
memory/3232-1-0x00007FF9036E3000-0x00007FF9036E5000-memory.dmp

Filesize
8KB

Download
memory/3620-85-0x000001FEC24A0000-0x000001FEC24A1000-memory.dmp

Filesize
4KB

Download
memory/3620-84-0x000001FEC24A0000-0x000001FEC24A1000-memory.dmp

Filesize
4KB

Download
memory/3620-79-0x000001FEC24A0000-0x000001FEC24A1000-memory.dmp

Filesize
4KB

Download
memory/3620-75-0x000001FEC24A0000-0x000001FEC24A1000-memory.dmp

Filesize
4KB

Download
memory/3620-74-0x000001FEC24A0000-0x000001FEC24A1000-memory.dmp

Filesize
4KB

Download
memory/3620-73-0x000001FEC24A0000-0x000001FEC24A1000-memory.dmp

Filesize
4KB

Download
memory/3620-80-0x000001FEC24A0000-0x000001FEC24A1000-memory.dmp

Filesize
4KB

Download
memory/3620-81-0x000001FEC24A0000-0x000001FEC24A1000-memory.dmp

Filesize
4KB

Download
memory/3620-83-0x000001FEC24A0000-0x000001FEC24A1000-memory.dmp

Filesize
4KB

Download
memory/3620-82-0x000001FEC24A0000-0x000001FEC24A1000-memory.dmp

Filesize
4KB

Download
memory/4924-18-0x00007FF9036E0000-0x00007FF9041A1000-memory.dmp

Filesize
10.8MB

Download
memory/4924-10-0x000001BFEF600000-0x000001BFEF622000-memory.dmp

Filesize
136KB

Download
memory/4924-15-0x00007FF9036E0000-0x00007FF9041A1000-memory.dmp

Filesize
10.8MB

Download
memory/4924-9-0x00007FF9036E0000-0x00007FF9041A1000-memory.dmp

Filesize
10.8MB

Download
memory/4924-3-0x00007FF9036E0000-0x00007FF9041A1000-memory.dmp

Filesize
10.8MB

Download