umbral | 2761a5557845a1135de74de2cdb687900d3bd244d9d1966dd195cbfba61be36b

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
05-01-2025 16:17

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General

Target

blasted.exe
Size

229KB
MD5

21e6f749bf59138d1528e64a34a88903
SHA1

4f2447e8476dad93e39aac775a7bf91c2c8cd4b8
SHA256

9952e7c346539dc361b2bda461eebf047ce00a2e3eb2bb3ab6f3fa0c0b5d87d5
SHA512

2cad6e33730a69bc31378ae4f502f37f6d8f6d1fd85c17830108ab6b056f1b5994bf8254530194df655e433689c2c22e53fea94c5958f8c1ee55f938a6e5486c
SSDEEP

6144:dloZM9rIkd8g+EtXHkv/iD4ZF3A6YXzQAp8aLLyfxmb8e1m6i:/oZmL+EP8ZF3A6YXzQAp8aLLyIo

Score

10^/10

umbral discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral1/memory/2024-1-0x00000000000C0000-0x0000000000100000-memory.dmp	family_umbral

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

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
2688	powershell.exe
2076	powershell.exe
2596	powershell.exe
1272	powershell.exe

Deletes itself 1 IoCs

pid	Process
2340	cmd.exe

Reads user/profile data of web browsers 3 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

Credentials from Web Browsers
T1555.003

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
2340	cmd.exe
2088	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
2348	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2088	PING.EXE

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2024	blasted.exe
2688	powershell.exe
2076	powershell.exe
2596	powershell.exe
1112	powershell.exe
1272	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2024	blasted.exe
Token: SeIncreaseQuotaPrivilege	2836	wmic.exe
Token: SeSecurityPrivilege	2836	wmic.exe
Token: SeTakeOwnershipPrivilege	2836	wmic.exe
Token: SeLoadDriverPrivilege	2836	wmic.exe
Token: SeSystemProfilePrivilege	2836	wmic.exe
Token: SeSystemtimePrivilege	2836	wmic.exe
Token: SeProfSingleProcessPrivilege	2836	wmic.exe
Token: SeIncBasePriorityPrivilege	2836	wmic.exe
Token: SeCreatePagefilePrivilege	2836	wmic.exe
Token: SeBackupPrivilege	2836	wmic.exe
Token: SeRestorePrivilege	2836	wmic.exe
Token: SeShutdownPrivilege	2836	wmic.exe
Token: SeDebugPrivilege	2836	wmic.exe
Token: SeSystemEnvironmentPrivilege	2836	wmic.exe
Token: SeRemoteShutdownPrivilege	2836	wmic.exe
Token: SeUndockPrivilege	2836	wmic.exe
Token: SeManageVolumePrivilege	2836	wmic.exe
Token: 33	2836	wmic.exe
Token: 34	2836	wmic.exe
Token: 35	2836	wmic.exe
Token: SeIncreaseQuotaPrivilege	2836	wmic.exe
Token: SeSecurityPrivilege	2836	wmic.exe
Token: SeTakeOwnershipPrivilege	2836	wmic.exe
Token: SeLoadDriverPrivilege	2836	wmic.exe
Token: SeSystemProfilePrivilege	2836	wmic.exe
Token: SeSystemtimePrivilege	2836	wmic.exe
Token: SeProfSingleProcessPrivilege	2836	wmic.exe
Token: SeIncBasePriorityPrivilege	2836	wmic.exe
Token: SeCreatePagefilePrivilege	2836	wmic.exe
Token: SeBackupPrivilege	2836	wmic.exe
Token: SeRestorePrivilege	2836	wmic.exe
Token: SeShutdownPrivilege	2836	wmic.exe
Token: SeDebugPrivilege	2836	wmic.exe
Token: SeSystemEnvironmentPrivilege	2836	wmic.exe
Token: SeRemoteShutdownPrivilege	2836	wmic.exe
Token: SeUndockPrivilege	2836	wmic.exe
Token: SeManageVolumePrivilege	2836	wmic.exe
Token: 33	2836	wmic.exe
Token: 34	2836	wmic.exe
Token: 35	2836	wmic.exe
Token: SeDebugPrivilege	2688	powershell.exe
Token: SeDebugPrivilege	2076	powershell.exe
Token: SeDebugPrivilege	2596	powershell.exe
Token: SeDebugPrivilege	1112	powershell.exe
Token: SeIncreaseQuotaPrivilege	696	wmic.exe
Token: SeSecurityPrivilege	696	wmic.exe
Token: SeTakeOwnershipPrivilege	696	wmic.exe
Token: SeLoadDriverPrivilege	696	wmic.exe
Token: SeSystemProfilePrivilege	696	wmic.exe
Token: SeSystemtimePrivilege	696	wmic.exe
Token: SeProfSingleProcessPrivilege	696	wmic.exe
Token: SeIncBasePriorityPrivilege	696	wmic.exe
Token: SeCreatePagefilePrivilege	696	wmic.exe
Token: SeBackupPrivilege	696	wmic.exe
Token: SeRestorePrivilege	696	wmic.exe
Token: SeShutdownPrivilege	696	wmic.exe
Token: SeDebugPrivilege	696	wmic.exe
Token: SeSystemEnvironmentPrivilege	696	wmic.exe
Token: SeRemoteShutdownPrivilege	696	wmic.exe
Token: SeUndockPrivilege	696	wmic.exe
Token: SeManageVolumePrivilege	696	wmic.exe
Token: 33	696	wmic.exe
Token: 34	696	wmic.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 2024 wrote to memory of 2836	2024	blasted.exe	31
PID 2024 wrote to memory of 2836	2024	blasted.exe	31
PID 2024 wrote to memory of 2836	2024	blasted.exe	31
PID 2024 wrote to memory of 2796	2024	blasted.exe	34
PID 2024 wrote to memory of 2796	2024	blasted.exe	34
PID 2024 wrote to memory of 2796	2024	blasted.exe	34
PID 2024 wrote to memory of 2688	2024	blasted.exe	36
PID 2024 wrote to memory of 2688	2024	blasted.exe	36
PID 2024 wrote to memory of 2688	2024	blasted.exe	36
PID 2024 wrote to memory of 2076	2024	blasted.exe	38
PID 2024 wrote to memory of 2076	2024	blasted.exe	38
PID 2024 wrote to memory of 2076	2024	blasted.exe	38
PID 2024 wrote to memory of 2596	2024	blasted.exe	40
PID 2024 wrote to memory of 2596	2024	blasted.exe	40
PID 2024 wrote to memory of 2596	2024	blasted.exe	40
PID 2024 wrote to memory of 1112	2024	blasted.exe	42
PID 2024 wrote to memory of 1112	2024	blasted.exe	42
PID 2024 wrote to memory of 1112	2024	blasted.exe	42
PID 2024 wrote to memory of 696	2024	blasted.exe	44
PID 2024 wrote to memory of 696	2024	blasted.exe	44
PID 2024 wrote to memory of 696	2024	blasted.exe	44
PID 2024 wrote to memory of 852	2024	blasted.exe	46
PID 2024 wrote to memory of 852	2024	blasted.exe	46
PID 2024 wrote to memory of 852	2024	blasted.exe	46
PID 2024 wrote to memory of 264	2024	blasted.exe	48
PID 2024 wrote to memory of 264	2024	blasted.exe	48
PID 2024 wrote to memory of 264	2024	blasted.exe	48
PID 2024 wrote to memory of 1272	2024	blasted.exe	50
PID 2024 wrote to memory of 1272	2024	blasted.exe	50
PID 2024 wrote to memory of 1272	2024	blasted.exe	50
PID 2024 wrote to memory of 2348	2024	blasted.exe	52
PID 2024 wrote to memory of 2348	2024	blasted.exe	52
PID 2024 wrote to memory of 2348	2024	blasted.exe	52
PID 2024 wrote to memory of 2340	2024	blasted.exe	54
PID 2024 wrote to memory of 2340	2024	blasted.exe	54
PID 2024 wrote to memory of 2340	2024	blasted.exe	54
PID 2340 wrote to memory of 2088	2340	cmd.exe	56
PID 2340 wrote to memory of 2088	2340	cmd.exe	56
PID 2340 wrote to memory of 2088	2340	cmd.exe	56

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2796	attrib.exe

C:\Users\Admin\AppData\Local\Temp\blasted.exe
"C:\Users\Admin\AppData\Local\Temp\blasted.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2024
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2836
- C:\Windows\system32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\blasted.exe"
  2⤵
  - Views/modifies file attributes
  PID:2796
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\blasted.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2688
- 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:2076
- 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:2596
- 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:1112
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:696
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:852
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:264
- 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:1272
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:2348
- C:\Windows\system32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\blasted.exe" && pause
  2⤵
  - Deletes itself
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2340
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:2088

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
b047e29bac0b3f55980dc247145c318a

SHA1
819a5528133aa55791663eac1465641775a40228

SHA256
da4ee42bf3f492d24fad1a6b98fbdf8434d0190830ad067de5b0e590fc5114cf

SHA512
3df25be3c884679bb39a98ce5884d3471eebba679a753b1fd00900f70c23c3517e860e3b9fb9277e7c47d5ae885ac876513cff63c0006f23b2269cd20053b846

Download Submit
memory/1272-42-0x000000001B700000-0x000000001B9E2000-memory.dmp

Filesize
2.9MB

Download
memory/1272-43-0x0000000002340000-0x0000000002348000-memory.dmp

Filesize
32KB

Download
memory/2024-0-0x000007FEF5D23000-0x000007FEF5D24000-memory.dmp

Filesize
4KB

Download
memory/2024-1-0x00000000000C0000-0x0000000000100000-memory.dmp

Filesize
256KB

Download
memory/2024-2-0x000007FEF5D20000-0x000007FEF670C000-memory.dmp

Filesize
9.9MB

Download
memory/2024-47-0x000007FEF5D20000-0x000007FEF670C000-memory.dmp

Filesize
9.9MB

Download
memory/2076-14-0x000000001B570000-0x000000001B852000-memory.dmp

Filesize
2.9MB

Download
memory/2076-15-0x0000000002250000-0x0000000002258000-memory.dmp

Filesize
32KB

Download
memory/2688-7-0x000000001B680000-0x000000001B962000-memory.dmp

Filesize
2.9MB

Download
memory/2688-8-0x0000000001E60000-0x0000000001E68000-memory.dmp

Filesize
32KB

Download