umbral | 84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893

Analysis

max time kernel
15s
max time network
17s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
08/01/2025, 14:20

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General

Target

84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe
Size

229KB
MD5

d5b2a8bb68e47bda3a870e5f46f4fe45
SHA1

c7ba06a0aeae1130cc0d49c697f10bca901939e0
SHA256

84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893
SHA512

579196a951a91e13563f7ba5572366929b80559d0180436f1a3dc1db404a141b6ebf908995f81e1856bd0a10836a8d0e3d4cfc948a1d91f81c91f6524177e869
SSDEEP

6144:FloZM+rIkd8g+EtXHkv/iD4AFyuMS1NmYzus9x4uab8e1mtiY:HoZtL+EP8AFyuMS1NmYzus9x45jY

Score

10^/10

umbral discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral1/memory/2528-1-0x0000000000B90000-0x0000000000BD0000-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
2828	powershell.exe
2756	powershell.exe
2008	powershell.exe
2388	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe

Deletes itself 1 IoCs

pid	Process
2068	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
10	discord.com
9	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
2068	cmd.exe
2384	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
1196	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2384	PING.EXE

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2528	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe
2828	powershell.exe
2756	powershell.exe
2008	powershell.exe
1228	powershell.exe
2388	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2528	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe
Token: SeIncreaseQuotaPrivilege	2692	wmic.exe
Token: SeSecurityPrivilege	2692	wmic.exe
Token: SeTakeOwnershipPrivilege	2692	wmic.exe
Token: SeLoadDriverPrivilege	2692	wmic.exe
Token: SeSystemProfilePrivilege	2692	wmic.exe
Token: SeSystemtimePrivilege	2692	wmic.exe
Token: SeProfSingleProcessPrivilege	2692	wmic.exe
Token: SeIncBasePriorityPrivilege	2692	wmic.exe
Token: SeCreatePagefilePrivilege	2692	wmic.exe
Token: SeBackupPrivilege	2692	wmic.exe
Token: SeRestorePrivilege	2692	wmic.exe
Token: SeShutdownPrivilege	2692	wmic.exe
Token: SeDebugPrivilege	2692	wmic.exe
Token: SeSystemEnvironmentPrivilege	2692	wmic.exe
Token: SeRemoteShutdownPrivilege	2692	wmic.exe
Token: SeUndockPrivilege	2692	wmic.exe
Token: SeManageVolumePrivilege	2692	wmic.exe
Token: 33	2692	wmic.exe
Token: 34	2692	wmic.exe
Token: 35	2692	wmic.exe
Token: SeIncreaseQuotaPrivilege	2692	wmic.exe
Token: SeSecurityPrivilege	2692	wmic.exe
Token: SeTakeOwnershipPrivilege	2692	wmic.exe
Token: SeLoadDriverPrivilege	2692	wmic.exe
Token: SeSystemProfilePrivilege	2692	wmic.exe
Token: SeSystemtimePrivilege	2692	wmic.exe
Token: SeProfSingleProcessPrivilege	2692	wmic.exe
Token: SeIncBasePriorityPrivilege	2692	wmic.exe
Token: SeCreatePagefilePrivilege	2692	wmic.exe
Token: SeBackupPrivilege	2692	wmic.exe
Token: SeRestorePrivilege	2692	wmic.exe
Token: SeShutdownPrivilege	2692	wmic.exe
Token: SeDebugPrivilege	2692	wmic.exe
Token: SeSystemEnvironmentPrivilege	2692	wmic.exe
Token: SeRemoteShutdownPrivilege	2692	wmic.exe
Token: SeUndockPrivilege	2692	wmic.exe
Token: SeManageVolumePrivilege	2692	wmic.exe
Token: 33	2692	wmic.exe
Token: 34	2692	wmic.exe
Token: 35	2692	wmic.exe
Token: SeDebugPrivilege	2828	powershell.exe
Token: SeDebugPrivilege	2756	powershell.exe
Token: SeDebugPrivilege	2008	powershell.exe
Token: SeDebugPrivilege	1228	powershell.exe
Token: SeIncreaseQuotaPrivilege	2576	wmic.exe
Token: SeSecurityPrivilege	2576	wmic.exe
Token: SeTakeOwnershipPrivilege	2576	wmic.exe
Token: SeLoadDriverPrivilege	2576	wmic.exe
Token: SeSystemProfilePrivilege	2576	wmic.exe
Token: SeSystemtimePrivilege	2576	wmic.exe
Token: SeProfSingleProcessPrivilege	2576	wmic.exe
Token: SeIncBasePriorityPrivilege	2576	wmic.exe
Token: SeCreatePagefilePrivilege	2576	wmic.exe
Token: SeBackupPrivilege	2576	wmic.exe
Token: SeRestorePrivilege	2576	wmic.exe
Token: SeShutdownPrivilege	2576	wmic.exe
Token: SeDebugPrivilege	2576	wmic.exe
Token: SeSystemEnvironmentPrivilege	2576	wmic.exe
Token: SeRemoteShutdownPrivilege	2576	wmic.exe
Token: SeUndockPrivilege	2576	wmic.exe
Token: SeManageVolumePrivilege	2576	wmic.exe
Token: 33	2576	wmic.exe
Token: 34	2576	wmic.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 2528 wrote to memory of 2692	2528	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	29
PID 2528 wrote to memory of 2692	2528	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	29
PID 2528 wrote to memory of 2692	2528	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	29
PID 2528 wrote to memory of 2956	2528	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	32
PID 2528 wrote to memory of 2956	2528	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	32
PID 2528 wrote to memory of 2956	2528	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	32
PID 2528 wrote to memory of 2828	2528	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	34
PID 2528 wrote to memory of 2828	2528	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	34
PID 2528 wrote to memory of 2828	2528	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	34
PID 2528 wrote to memory of 2756	2528	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	36
PID 2528 wrote to memory of 2756	2528	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	36
PID 2528 wrote to memory of 2756	2528	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	36
PID 2528 wrote to memory of 2008	2528	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	38
PID 2528 wrote to memory of 2008	2528	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	38
PID 2528 wrote to memory of 2008	2528	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	38
PID 2528 wrote to memory of 1228	2528	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	40
PID 2528 wrote to memory of 1228	2528	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	40
PID 2528 wrote to memory of 1228	2528	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	40
PID 2528 wrote to memory of 2576	2528	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	42
PID 2528 wrote to memory of 2576	2528	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	42
PID 2528 wrote to memory of 2576	2528	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	42
PID 2528 wrote to memory of 2688	2528	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	44
PID 2528 wrote to memory of 2688	2528	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	44
PID 2528 wrote to memory of 2688	2528	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	44
PID 2528 wrote to memory of 3028	2528	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	46
PID 2528 wrote to memory of 3028	2528	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	46
PID 2528 wrote to memory of 3028	2528	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	46
PID 2528 wrote to memory of 2388	2528	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	48
PID 2528 wrote to memory of 2388	2528	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	48
PID 2528 wrote to memory of 2388	2528	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	48
PID 2528 wrote to memory of 1196	2528	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	50
PID 2528 wrote to memory of 1196	2528	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	50
PID 2528 wrote to memory of 1196	2528	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	50
PID 2528 wrote to memory of 2068	2528	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	52
PID 2528 wrote to memory of 2068	2528	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	52
PID 2528 wrote to memory of 2068	2528	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	52
PID 2068 wrote to memory of 2384	2068	cmd.exe	54
PID 2068 wrote to memory of 2384	2068	cmd.exe	54
PID 2068 wrote to memory of 2384	2068	cmd.exe	54

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2956	attrib.exe

C:\Users\Admin\AppData\Local\Temp\84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe
"C:\Users\Admin\AppData\Local\Temp\84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2528
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2692
- C:\Windows\system32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe"
  2⤵
  - Views/modifies file attributes
  PID:2956
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2828
- 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:2756
- 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:2008
- 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:1228
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2576
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:2688
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:3028
- 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:2388
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:1196
- C:\Windows\system32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe" && pause
  2⤵
  - Deletes itself
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2068
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:2384

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
b0f130dfdb4796372ab45d36e16191fc

SHA1
859572c5b3df7c047fe1577dc9255f41d123e4c8

SHA256
2d89bc61226b9341919cbc1f7abdb663d82a2ad1d24ae3f569a036d945327258

SHA512
db29ae3408034f0614110320d4c3c0d9ae5604a288a7274c8bd03c003a8ea56654d47e372719bf750a3fefd82295174f691c8db964e30f8621b13812826b84b0

Download Submit
memory/2388-43-0x0000000002870000-0x0000000002878000-memory.dmp

Filesize
32KB

Download
memory/2528-0-0x000007FEF5E93000-0x000007FEF5E94000-memory.dmp

Filesize
4KB

Download
memory/2528-1-0x0000000000B90000-0x0000000000BD0000-memory.dmp

Filesize
256KB

Download
memory/2528-2-0x000007FEF5E90000-0x000007FEF687C000-memory.dmp

Filesize
9.9MB

Download
memory/2528-47-0x000007FEF5E90000-0x000007FEF687C000-memory.dmp

Filesize
9.9MB

Download
memory/2756-14-0x000000001B850000-0x000000001BB32000-memory.dmp

Filesize
2.9MB

Download
memory/2756-15-0x0000000001D90000-0x0000000001D98000-memory.dmp

Filesize
32KB

Download
memory/2828-7-0x000000001B680000-0x000000001B962000-memory.dmp

Filesize
2.9MB

Download
memory/2828-8-0x0000000002790000-0x0000000002798000-memory.dmp

Filesize
32KB

Download