umbral | 84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893

Analysis

max time kernel
17s
max time network
16s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
08/01/2025, 14:12

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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/2364-1-0x0000000001220000-0x0000000001260000-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

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
2644	powershell.exe
1956	powershell.exe
2632	powershell.exe
2916	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
1076	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
1076	cmd.exe
2172	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
2012	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2172	PING.EXE

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2364	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe
2916	powershell.exe
2632	powershell.exe
2644	powershell.exe
2820	powershell.exe
1956	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2364	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe
Token: SeIncreaseQuotaPrivilege	2116	wmic.exe
Token: SeSecurityPrivilege	2116	wmic.exe
Token: SeTakeOwnershipPrivilege	2116	wmic.exe
Token: SeLoadDriverPrivilege	2116	wmic.exe
Token: SeSystemProfilePrivilege	2116	wmic.exe
Token: SeSystemtimePrivilege	2116	wmic.exe
Token: SeProfSingleProcessPrivilege	2116	wmic.exe
Token: SeIncBasePriorityPrivilege	2116	wmic.exe
Token: SeCreatePagefilePrivilege	2116	wmic.exe
Token: SeBackupPrivilege	2116	wmic.exe
Token: SeRestorePrivilege	2116	wmic.exe
Token: SeShutdownPrivilege	2116	wmic.exe
Token: SeDebugPrivilege	2116	wmic.exe
Token: SeSystemEnvironmentPrivilege	2116	wmic.exe
Token: SeRemoteShutdownPrivilege	2116	wmic.exe
Token: SeUndockPrivilege	2116	wmic.exe
Token: SeManageVolumePrivilege	2116	wmic.exe
Token: 33	2116	wmic.exe
Token: 34	2116	wmic.exe
Token: 35	2116	wmic.exe
Token: SeIncreaseQuotaPrivilege	2116	wmic.exe
Token: SeSecurityPrivilege	2116	wmic.exe
Token: SeTakeOwnershipPrivilege	2116	wmic.exe
Token: SeLoadDriverPrivilege	2116	wmic.exe
Token: SeSystemProfilePrivilege	2116	wmic.exe
Token: SeSystemtimePrivilege	2116	wmic.exe
Token: SeProfSingleProcessPrivilege	2116	wmic.exe
Token: SeIncBasePriorityPrivilege	2116	wmic.exe
Token: SeCreatePagefilePrivilege	2116	wmic.exe
Token: SeBackupPrivilege	2116	wmic.exe
Token: SeRestorePrivilege	2116	wmic.exe
Token: SeShutdownPrivilege	2116	wmic.exe
Token: SeDebugPrivilege	2116	wmic.exe
Token: SeSystemEnvironmentPrivilege	2116	wmic.exe
Token: SeRemoteShutdownPrivilege	2116	wmic.exe
Token: SeUndockPrivilege	2116	wmic.exe
Token: SeManageVolumePrivilege	2116	wmic.exe
Token: 33	2116	wmic.exe
Token: 34	2116	wmic.exe
Token: 35	2116	wmic.exe
Token: SeDebugPrivilege	2916	powershell.exe
Token: SeDebugPrivilege	2632	powershell.exe
Token: SeDebugPrivilege	2644	powershell.exe
Token: SeDebugPrivilege	2820	powershell.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

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 2364 wrote to memory of 2116	2364	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	30
PID 2364 wrote to memory of 2116	2364	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	30
PID 2364 wrote to memory of 2116	2364	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	30
PID 2364 wrote to memory of 2852	2364	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	33
PID 2364 wrote to memory of 2852	2364	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	33
PID 2364 wrote to memory of 2852	2364	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	33
PID 2364 wrote to memory of 2916	2364	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	35
PID 2364 wrote to memory of 2916	2364	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	35
PID 2364 wrote to memory of 2916	2364	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	35
PID 2364 wrote to memory of 2632	2364	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	37
PID 2364 wrote to memory of 2632	2364	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	37
PID 2364 wrote to memory of 2632	2364	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	37
PID 2364 wrote to memory of 2644	2364	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	39
PID 2364 wrote to memory of 2644	2364	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	39
PID 2364 wrote to memory of 2644	2364	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	39
PID 2364 wrote to memory of 2820	2364	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	41
PID 2364 wrote to memory of 2820	2364	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	41
PID 2364 wrote to memory of 2820	2364	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	41
PID 2364 wrote to memory of 2836	2364	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	43
PID 2364 wrote to memory of 2836	2364	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	43
PID 2364 wrote to memory of 2836	2364	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	43
PID 2364 wrote to memory of 2500	2364	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	45
PID 2364 wrote to memory of 2500	2364	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	45
PID 2364 wrote to memory of 2500	2364	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	45
PID 2364 wrote to memory of 2668	2364	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	47
PID 2364 wrote to memory of 2668	2364	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	47
PID 2364 wrote to memory of 2668	2364	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	47
PID 2364 wrote to memory of 1956	2364	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	49
PID 2364 wrote to memory of 1956	2364	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	49
PID 2364 wrote to memory of 1956	2364	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	49
PID 2364 wrote to memory of 2012	2364	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	51
PID 2364 wrote to memory of 2012	2364	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	51
PID 2364 wrote to memory of 2012	2364	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	51
PID 2364 wrote to memory of 1076	2364	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	53
PID 2364 wrote to memory of 1076	2364	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	53
PID 2364 wrote to memory of 1076	2364	84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe	53
PID 1076 wrote to memory of 2172	1076	cmd.exe	55
PID 1076 wrote to memory of 2172	1076	cmd.exe	55
PID 1076 wrote to memory of 2172	1076	cmd.exe	55

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2852	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:2364
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2116
- C:\Windows\system32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\84da387b415ad657fb91d6d5952d8f2882bb1116018a84ee9ebd502c2f2dc893.exe"
  2⤵
  - Views/modifies file attributes
  PID:2852
- 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:2916
- 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:2632
- 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:2644
- 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:2820
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2836
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  PID:2500
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:2668
- 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:1956
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:2012
- 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:1076
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:2172

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\66Z3NEB0N78F5IISQXIP.temp

Filesize
7KB

MD5
31631ee1112c4ad26f0bdf5f2bbe1e0e

SHA1
98aefbe718ccdcd60116a577889586273fb9d54a

SHA256
863388b3b5054cbd3d620962440e896ad23ed124c4d5d0384d0ef63793ddaa29

SHA512
db4c2f766d3a7c925ffa34255ce6eda5544138b60ab720018b8bde894e774ea48d21dfb3d8d1775315548fc1a3d909fa41144bfbefb6a4f70669c7cf24f5b9e8

Download Submit
memory/1956-45-0x0000000001E70000-0x0000000001E78000-memory.dmp

Filesize
32KB

Download
memory/1956-44-0x000000001B4D0000-0x000000001B7B2000-memory.dmp

Filesize
2.9MB

Download
memory/2364-0-0x000007FEF4FC3000-0x000007FEF4FC4000-memory.dmp

Filesize
4KB

Download
memory/2364-1-0x0000000001220000-0x0000000001260000-memory.dmp

Filesize
256KB

Download
memory/2364-2-0x000007FEF4FC0000-0x000007FEF59AC000-memory.dmp

Filesize
9.9MB

Download
memory/2364-49-0x000007FEF4FC0000-0x000007FEF59AC000-memory.dmp

Filesize
9.9MB

Download
memory/2632-14-0x000000001B6B0000-0x000000001B992000-memory.dmp

Filesize
2.9MB

Download
memory/2632-15-0x00000000027B0000-0x00000000027B8000-memory.dmp

Filesize
32KB

Download
memory/2916-7-0x000000001B5D0000-0x000000001B8B2000-memory.dmp

Filesize
2.9MB

Download
memory/2916-8-0x0000000002290000-0x0000000002298000-memory.dmp

Filesize
32KB

Download