umbral | 382f9d13e5a5945980c767ec1d98732d971a4e07bdb9ed1950d6c455edbb203a

Analysis

max time kernel
118s
max time network
125s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
26-07-2024 02:43

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General

Target

382f9d13e5a5945980c767ec1d98732d971a4e07bdb9ed1950d6c455edbb203a.exe
Size

296KB
MD5

c4cf132278a366635533a2734901aa95
SHA1

06ea6b94f8accb59c3115c67208a1116a12a7f1e
SHA256

382f9d13e5a5945980c767ec1d98732d971a4e07bdb9ed1950d6c455edbb203a
SHA512

d6f4343892a266db8b62892d0c8eef5e63492f49e237d704cf2c5237fe5249f948dbbc8471ae2db00a862af9d7658c6286a72a0f3134786dae82d5fad72eb120
SSDEEP

6144:dloZM+rIkd8g+EtXHkv/iD4PaIWVjgULYyD1Ac5eIb8e1mWiQ:/oZVL+EP8PaIWVjgULYyD1Ac5n0

Score

10^/10

umbral credential_access discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral1/memory/2416-1-0x0000000001290000-0x00000000012E0000-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
2884	powershell.exe
2216	powershell.exe
2724	powershell.exe
2020	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	382f9d13e5a5945980c767ec1d98732d971a4e07bdb9ed1950d6c455edbb203a.exe

Deletes itself 1 IoCs

pid	Process
996	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
996	cmd.exe
2356	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
2104	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2356	PING.EXE

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2416	382f9d13e5a5945980c767ec1d98732d971a4e07bdb9ed1950d6c455edbb203a.exe
2884	powershell.exe
2216	powershell.exe
2724	powershell.exe
112	powershell.exe
2020	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2416	382f9d13e5a5945980c767ec1d98732d971a4e07bdb9ed1950d6c455edbb203a.exe
Token: SeIncreaseQuotaPrivilege	2112	wmic.exe
Token: SeSecurityPrivilege	2112	wmic.exe
Token: SeTakeOwnershipPrivilege	2112	wmic.exe
Token: SeLoadDriverPrivilege	2112	wmic.exe
Token: SeSystemProfilePrivilege	2112	wmic.exe
Token: SeSystemtimePrivilege	2112	wmic.exe
Token: SeProfSingleProcessPrivilege	2112	wmic.exe
Token: SeIncBasePriorityPrivilege	2112	wmic.exe
Token: SeCreatePagefilePrivilege	2112	wmic.exe
Token: SeBackupPrivilege	2112	wmic.exe
Token: SeRestorePrivilege	2112	wmic.exe
Token: SeShutdownPrivilege	2112	wmic.exe
Token: SeDebugPrivilege	2112	wmic.exe
Token: SeSystemEnvironmentPrivilege	2112	wmic.exe
Token: SeRemoteShutdownPrivilege	2112	wmic.exe
Token: SeUndockPrivilege	2112	wmic.exe
Token: SeManageVolumePrivilege	2112	wmic.exe
Token: 33	2112	wmic.exe
Token: 34	2112	wmic.exe
Token: 35	2112	wmic.exe
Token: SeIncreaseQuotaPrivilege	2112	wmic.exe
Token: SeSecurityPrivilege	2112	wmic.exe
Token: SeTakeOwnershipPrivilege	2112	wmic.exe
Token: SeLoadDriverPrivilege	2112	wmic.exe
Token: SeSystemProfilePrivilege	2112	wmic.exe
Token: SeSystemtimePrivilege	2112	wmic.exe
Token: SeProfSingleProcessPrivilege	2112	wmic.exe
Token: SeIncBasePriorityPrivilege	2112	wmic.exe
Token: SeCreatePagefilePrivilege	2112	wmic.exe
Token: SeBackupPrivilege	2112	wmic.exe
Token: SeRestorePrivilege	2112	wmic.exe
Token: SeShutdownPrivilege	2112	wmic.exe
Token: SeDebugPrivilege	2112	wmic.exe
Token: SeSystemEnvironmentPrivilege	2112	wmic.exe
Token: SeRemoteShutdownPrivilege	2112	wmic.exe
Token: SeUndockPrivilege	2112	wmic.exe
Token: SeManageVolumePrivilege	2112	wmic.exe
Token: 33	2112	wmic.exe
Token: 34	2112	wmic.exe
Token: 35	2112	wmic.exe
Token: SeDebugPrivilege	2884	powershell.exe
Token: SeDebugPrivilege	2216	powershell.exe
Token: SeDebugPrivilege	2724	powershell.exe
Token: SeDebugPrivilege	112	powershell.exe
Token: SeIncreaseQuotaPrivilege	1132	wmic.exe
Token: SeSecurityPrivilege	1132	wmic.exe
Token: SeTakeOwnershipPrivilege	1132	wmic.exe
Token: SeLoadDriverPrivilege	1132	wmic.exe
Token: SeSystemProfilePrivilege	1132	wmic.exe
Token: SeSystemtimePrivilege	1132	wmic.exe
Token: SeProfSingleProcessPrivilege	1132	wmic.exe
Token: SeIncBasePriorityPrivilege	1132	wmic.exe
Token: SeCreatePagefilePrivilege	1132	wmic.exe
Token: SeBackupPrivilege	1132	wmic.exe
Token: SeRestorePrivilege	1132	wmic.exe
Token: SeShutdownPrivilege	1132	wmic.exe
Token: SeDebugPrivilege	1132	wmic.exe
Token: SeSystemEnvironmentPrivilege	1132	wmic.exe
Token: SeRemoteShutdownPrivilege	1132	wmic.exe
Token: SeUndockPrivilege	1132	wmic.exe
Token: SeManageVolumePrivilege	1132	wmic.exe
Token: 33	1132	wmic.exe
Token: 34	1132	wmic.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 2416 wrote to memory of 2112	2416	382f9d13e5a5945980c767ec1d98732d971a4e07bdb9ed1950d6c455edbb203a.exe	30
PID 2416 wrote to memory of 2112	2416	382f9d13e5a5945980c767ec1d98732d971a4e07bdb9ed1950d6c455edbb203a.exe	30
PID 2416 wrote to memory of 2112	2416	382f9d13e5a5945980c767ec1d98732d971a4e07bdb9ed1950d6c455edbb203a.exe	30
PID 2416 wrote to memory of 2760	2416	382f9d13e5a5945980c767ec1d98732d971a4e07bdb9ed1950d6c455edbb203a.exe	33
PID 2416 wrote to memory of 2760	2416	382f9d13e5a5945980c767ec1d98732d971a4e07bdb9ed1950d6c455edbb203a.exe	33
PID 2416 wrote to memory of 2760	2416	382f9d13e5a5945980c767ec1d98732d971a4e07bdb9ed1950d6c455edbb203a.exe	33
PID 2416 wrote to memory of 2884	2416	382f9d13e5a5945980c767ec1d98732d971a4e07bdb9ed1950d6c455edbb203a.exe	35
PID 2416 wrote to memory of 2884	2416	382f9d13e5a5945980c767ec1d98732d971a4e07bdb9ed1950d6c455edbb203a.exe	35
PID 2416 wrote to memory of 2884	2416	382f9d13e5a5945980c767ec1d98732d971a4e07bdb9ed1950d6c455edbb203a.exe	35
PID 2416 wrote to memory of 2216	2416	382f9d13e5a5945980c767ec1d98732d971a4e07bdb9ed1950d6c455edbb203a.exe	37
PID 2416 wrote to memory of 2216	2416	382f9d13e5a5945980c767ec1d98732d971a4e07bdb9ed1950d6c455edbb203a.exe	37
PID 2416 wrote to memory of 2216	2416	382f9d13e5a5945980c767ec1d98732d971a4e07bdb9ed1950d6c455edbb203a.exe	37
PID 2416 wrote to memory of 2724	2416	382f9d13e5a5945980c767ec1d98732d971a4e07bdb9ed1950d6c455edbb203a.exe	39
PID 2416 wrote to memory of 2724	2416	382f9d13e5a5945980c767ec1d98732d971a4e07bdb9ed1950d6c455edbb203a.exe	39
PID 2416 wrote to memory of 2724	2416	382f9d13e5a5945980c767ec1d98732d971a4e07bdb9ed1950d6c455edbb203a.exe	39
PID 2416 wrote to memory of 112	2416	382f9d13e5a5945980c767ec1d98732d971a4e07bdb9ed1950d6c455edbb203a.exe	41
PID 2416 wrote to memory of 112	2416	382f9d13e5a5945980c767ec1d98732d971a4e07bdb9ed1950d6c455edbb203a.exe	41
PID 2416 wrote to memory of 112	2416	382f9d13e5a5945980c767ec1d98732d971a4e07bdb9ed1950d6c455edbb203a.exe	41
PID 2416 wrote to memory of 1132	2416	382f9d13e5a5945980c767ec1d98732d971a4e07bdb9ed1950d6c455edbb203a.exe	43
PID 2416 wrote to memory of 1132	2416	382f9d13e5a5945980c767ec1d98732d971a4e07bdb9ed1950d6c455edbb203a.exe	43
PID 2416 wrote to memory of 1132	2416	382f9d13e5a5945980c767ec1d98732d971a4e07bdb9ed1950d6c455edbb203a.exe	43
PID 2416 wrote to memory of 2972	2416	382f9d13e5a5945980c767ec1d98732d971a4e07bdb9ed1950d6c455edbb203a.exe	45
PID 2416 wrote to memory of 2972	2416	382f9d13e5a5945980c767ec1d98732d971a4e07bdb9ed1950d6c455edbb203a.exe	45
PID 2416 wrote to memory of 2972	2416	382f9d13e5a5945980c767ec1d98732d971a4e07bdb9ed1950d6c455edbb203a.exe	45
PID 2416 wrote to memory of 1796	2416	382f9d13e5a5945980c767ec1d98732d971a4e07bdb9ed1950d6c455edbb203a.exe	47
PID 2416 wrote to memory of 1796	2416	382f9d13e5a5945980c767ec1d98732d971a4e07bdb9ed1950d6c455edbb203a.exe	47
PID 2416 wrote to memory of 1796	2416	382f9d13e5a5945980c767ec1d98732d971a4e07bdb9ed1950d6c455edbb203a.exe	47
PID 2416 wrote to memory of 2020	2416	382f9d13e5a5945980c767ec1d98732d971a4e07bdb9ed1950d6c455edbb203a.exe	49
PID 2416 wrote to memory of 2020	2416	382f9d13e5a5945980c767ec1d98732d971a4e07bdb9ed1950d6c455edbb203a.exe	49
PID 2416 wrote to memory of 2020	2416	382f9d13e5a5945980c767ec1d98732d971a4e07bdb9ed1950d6c455edbb203a.exe	49
PID 2416 wrote to memory of 2104	2416	382f9d13e5a5945980c767ec1d98732d971a4e07bdb9ed1950d6c455edbb203a.exe	51
PID 2416 wrote to memory of 2104	2416	382f9d13e5a5945980c767ec1d98732d971a4e07bdb9ed1950d6c455edbb203a.exe	51
PID 2416 wrote to memory of 2104	2416	382f9d13e5a5945980c767ec1d98732d971a4e07bdb9ed1950d6c455edbb203a.exe	51
PID 2416 wrote to memory of 996	2416	382f9d13e5a5945980c767ec1d98732d971a4e07bdb9ed1950d6c455edbb203a.exe	53
PID 2416 wrote to memory of 996	2416	382f9d13e5a5945980c767ec1d98732d971a4e07bdb9ed1950d6c455edbb203a.exe	53
PID 2416 wrote to memory of 996	2416	382f9d13e5a5945980c767ec1d98732d971a4e07bdb9ed1950d6c455edbb203a.exe	53
PID 996 wrote to memory of 2356	996	cmd.exe	55
PID 996 wrote to memory of 2356	996	cmd.exe	55
PID 996 wrote to memory of 2356	996	cmd.exe	55

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2760	attrib.exe

C:\Users\Admin\AppData\Local\Temp\382f9d13e5a5945980c767ec1d98732d971a4e07bdb9ed1950d6c455edbb203a.exe
"C:\Users\Admin\AppData\Local\Temp\382f9d13e5a5945980c767ec1d98732d971a4e07bdb9ed1950d6c455edbb203a.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2416
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2112
- C:\Windows\system32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\382f9d13e5a5945980c767ec1d98732d971a4e07bdb9ed1950d6c455edbb203a.exe"
  2⤵
  - Views/modifies file attributes
  PID:2760
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\382f9d13e5a5945980c767ec1d98732d971a4e07bdb9ed1950d6c455edbb203a.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2884
- 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:2216
- 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:2724
- 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:112
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1132
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:2972
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:1796
- 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:2020
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:2104
- C:\Windows\system32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\382f9d13e5a5945980c767ec1d98732d971a4e07bdb9ed1950d6c455edbb203a.exe" && pause
  2⤵
  - Deletes itself
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:996
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:2356

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
44ba5caade718c0d1f50b84c7f258d32

SHA1
407581cb4cff74fe00c00c0d4aea267dd8257031

SHA256
f7d37b5a945be4be7ad929f54712f40670fb70424cbb0f526018791fe3096fa8

SHA512
4e6d72e91b49a91c1fb8b1c38caccc31ba89268b05e23e172812588849161bfc0eae01d16b7880e7923c37c5941a3fe936ed02e2871dcff85c36b3e3ef26f76d

Download Submit
memory/2020-43-0x0000000001F70000-0x0000000001F78000-memory.dmp

Filesize
32KB

Download
memory/2216-14-0x000000001B490000-0x000000001B772000-memory.dmp

Filesize
2.9MB

Download
memory/2216-15-0x0000000002250000-0x0000000002258000-memory.dmp

Filesize
32KB

Download
memory/2416-0-0x000007FEF5C93000-0x000007FEF5C94000-memory.dmp

Filesize
4KB

Download
memory/2416-1-0x0000000001290000-0x00000000012E0000-memory.dmp

Filesize
320KB

Download
memory/2416-2-0x000007FEF5C90000-0x000007FEF667C000-memory.dmp

Filesize
9.9MB

Download
memory/2416-47-0x000007FEF5C90000-0x000007FEF667C000-memory.dmp

Filesize
9.9MB

Download
memory/2884-7-0x000000001B510000-0x000000001B7F2000-memory.dmp

Filesize
2.9MB

Download
memory/2884-8-0x00000000022C0000-0x00000000022C8000-memory.dmp

Filesize
32KB

Download