umbral | 0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0

Analysis

max time kernel
16s
max time network
16s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
21-08-2024 01:05

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General

Target

0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe
Size

227KB
MD5

fe415b65db443f8d7e3aa075d79b4a72
SHA1

71fa4604b053ac55c7afa5a2d87ea0bcf8d0a116
SHA256

0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0
SHA512

dc715d2c938f22446f155afa615adbee775eb7abdc688b204037eccadd435490be3ab0fe6b2a9d493cb357de5730e864ffb842c42dc3051671a7fbc9a9117fb8
SSDEEP

6144:+loZM9rIkd8g+EtXHkv/iD4W9YhFzQEbmCzFQMpi+b8e1mSPi:ooZOL+EP8W9YhFzQEbmCzFQMp9Pa

Score

10^/10

umbral credential_access discovery execution spyware stealer

Malware Config

Signatures

Detect Umbral payload 1 IoCs

resource	yara_rule
behavioral1/memory/848-1-0x00000000001F0000-0x0000000000230000-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
1708	powershell.exe
2896	powershell.exe
2712	powershell.exe
2772	powershell.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe

Deletes itself 1 IoCs

pid	Process
1060	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
6	discord.com
7	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
4	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
1060	cmd.exe
1572	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
3020	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1572	PING.EXE

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
1708	powershell.exe
2896	powershell.exe
2712	powershell.exe
2236	powershell.exe
2772	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	848	0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe
Token: SeDebugPrivilege	1708	powershell.exe
Token: SeDebugPrivilege	2896	powershell.exe
Token: SeDebugPrivilege	2712	powershell.exe
Token: SeDebugPrivilege	2236	powershell.exe
Token: SeIncreaseQuotaPrivilege	1740	wmic.exe
Token: SeSecurityPrivilege	1740	wmic.exe
Token: SeTakeOwnershipPrivilege	1740	wmic.exe
Token: SeLoadDriverPrivilege	1740	wmic.exe
Token: SeSystemProfilePrivilege	1740	wmic.exe
Token: SeSystemtimePrivilege	1740	wmic.exe
Token: SeProfSingleProcessPrivilege	1740	wmic.exe
Token: SeIncBasePriorityPrivilege	1740	wmic.exe
Token: SeCreatePagefilePrivilege	1740	wmic.exe
Token: SeBackupPrivilege	1740	wmic.exe
Token: SeRestorePrivilege	1740	wmic.exe
Token: SeShutdownPrivilege	1740	wmic.exe
Token: SeDebugPrivilege	1740	wmic.exe
Token: SeSystemEnvironmentPrivilege	1740	wmic.exe
Token: SeRemoteShutdownPrivilege	1740	wmic.exe
Token: SeUndockPrivilege	1740	wmic.exe
Token: SeManageVolumePrivilege	1740	wmic.exe
Token: 33	1740	wmic.exe
Token: 34	1740	wmic.exe
Token: 35	1740	wmic.exe
Token: SeIncreaseQuotaPrivilege	1740	wmic.exe
Token: SeSecurityPrivilege	1740	wmic.exe
Token: SeTakeOwnershipPrivilege	1740	wmic.exe
Token: SeLoadDriverPrivilege	1740	wmic.exe
Token: SeSystemProfilePrivilege	1740	wmic.exe
Token: SeSystemtimePrivilege	1740	wmic.exe
Token: SeProfSingleProcessPrivilege	1740	wmic.exe
Token: SeIncBasePriorityPrivilege	1740	wmic.exe
Token: SeCreatePagefilePrivilege	1740	wmic.exe
Token: SeBackupPrivilege	1740	wmic.exe
Token: SeRestorePrivilege	1740	wmic.exe
Token: SeShutdownPrivilege	1740	wmic.exe
Token: SeDebugPrivilege	1740	wmic.exe
Token: SeSystemEnvironmentPrivilege	1740	wmic.exe
Token: SeRemoteShutdownPrivilege	1740	wmic.exe
Token: SeUndockPrivilege	1740	wmic.exe
Token: SeManageVolumePrivilege	1740	wmic.exe
Token: 33	1740	wmic.exe
Token: 34	1740	wmic.exe
Token: 35	1740	wmic.exe
Token: SeIncreaseQuotaPrivilege	2948	wmic.exe
Token: SeSecurityPrivilege	2948	wmic.exe
Token: SeTakeOwnershipPrivilege	2948	wmic.exe
Token: SeLoadDriverPrivilege	2948	wmic.exe
Token: SeSystemProfilePrivilege	2948	wmic.exe
Token: SeSystemtimePrivilege	2948	wmic.exe
Token: SeProfSingleProcessPrivilege	2948	wmic.exe
Token: SeIncBasePriorityPrivilege	2948	wmic.exe
Token: SeCreatePagefilePrivilege	2948	wmic.exe
Token: SeBackupPrivilege	2948	wmic.exe
Token: SeRestorePrivilege	2948	wmic.exe
Token: SeShutdownPrivilege	2948	wmic.exe
Token: SeDebugPrivilege	2948	wmic.exe
Token: SeSystemEnvironmentPrivilege	2948	wmic.exe
Token: SeRemoteShutdownPrivilege	2948	wmic.exe
Token: SeUndockPrivilege	2948	wmic.exe
Token: SeManageVolumePrivilege	2948	wmic.exe
Token: 33	2948	wmic.exe
Token: 34	2948	wmic.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 848 wrote to memory of 2288	848	0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe	29
PID 848 wrote to memory of 2288	848	0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe	29
PID 848 wrote to memory of 2288	848	0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe	29
PID 848 wrote to memory of 1708	848	0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe	31
PID 848 wrote to memory of 1708	848	0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe	31
PID 848 wrote to memory of 1708	848	0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe	31
PID 848 wrote to memory of 2896	848	0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe	33
PID 848 wrote to memory of 2896	848	0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe	33
PID 848 wrote to memory of 2896	848	0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe	33
PID 848 wrote to memory of 2712	848	0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe	35
PID 848 wrote to memory of 2712	848	0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe	35
PID 848 wrote to memory of 2712	848	0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe	35
PID 848 wrote to memory of 2236	848	0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe	37
PID 848 wrote to memory of 2236	848	0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe	37
PID 848 wrote to memory of 2236	848	0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe	37
PID 848 wrote to memory of 1740	848	0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe	39
PID 848 wrote to memory of 1740	848	0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe	39
PID 848 wrote to memory of 1740	848	0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe	39
PID 848 wrote to memory of 2948	848	0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe	42
PID 848 wrote to memory of 2948	848	0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe	42
PID 848 wrote to memory of 2948	848	0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe	42
PID 848 wrote to memory of 2952	848	0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe	44
PID 848 wrote to memory of 2952	848	0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe	44
PID 848 wrote to memory of 2952	848	0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe	44
PID 848 wrote to memory of 2772	848	0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe	46
PID 848 wrote to memory of 2772	848	0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe	46
PID 848 wrote to memory of 2772	848	0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe	46
PID 848 wrote to memory of 3020	848	0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe	48
PID 848 wrote to memory of 3020	848	0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe	48
PID 848 wrote to memory of 3020	848	0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe	48
PID 848 wrote to memory of 1060	848	0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe	50
PID 848 wrote to memory of 1060	848	0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe	50
PID 848 wrote to memory of 1060	848	0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe	50
PID 1060 wrote to memory of 1572	1060	cmd.exe	52
PID 1060 wrote to memory of 1572	1060	cmd.exe	52
PID 1060 wrote to memory of 1572	1060	cmd.exe	52

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2288	attrib.exe

C:\Users\Admin\AppData\Local\Temp\0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe
"C:\Users\Admin\AppData\Local\Temp\0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe"
1⤵
- Drops file in Drivers directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:848
- C:\Windows\system32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe"
  2⤵
  - Views/modifies file attributes
  PID:2288
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1708
- 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:2896
- 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:2712
- 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:2236
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1740
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2948
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:2952
- 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:2772
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:3020
- C:\Windows\system32\cmd.exe
  "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe" && pause
  2⤵
  - Deletes itself
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:1060
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:1572

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
c48324fe5a54a391629d41344de56aaf

SHA1
49e32cce379f8d39c31649d1228062fffc94eecc

SHA256
98d3d65c947dfdb46b9ecd1231c85d1e97aafaffa62db7724c3650339c007d8c

SHA512
c8392a59cdc72579297528cd15476352dfe3b3c4288a44bc086c912182d78000d4e0bbab5e9f1ee30456ed95d2add12789d12825bc742f1b5846ed64cbf0b1cd

Download Submit
memory/848-1-0x00000000001F0000-0x0000000000230000-memory.dmp

Filesize
256KB

Download
memory/848-2-0x000007FEF6240000-0x000007FEF6C2C000-memory.dmp

Filesize
9.9MB

Download
memory/848-53-0x000007FEF6240000-0x000007FEF6C2C000-memory.dmp

Filesize
9.9MB

Download
memory/848-0-0x000007FEF6243000-0x000007FEF6244000-memory.dmp

Filesize
4KB

Download
memory/1708-10-0x000007FEED2B0000-0x000007FEEDC4D000-memory.dmp

Filesize
9.6MB

Download
memory/1708-8-0x000000001B6D0000-0x000000001B9B2000-memory.dmp

Filesize
2.9MB

Download
memory/1708-11-0x000007FEED2B0000-0x000007FEEDC4D000-memory.dmp

Filesize
9.6MB

Download
memory/1708-13-0x000007FEED2B0000-0x000007FEEDC4D000-memory.dmp

Filesize
9.6MB

Download
memory/1708-12-0x000007FEED2B0000-0x000007FEEDC4D000-memory.dmp

Filesize
9.6MB

Download
memory/1708-14-0x000007FEED2B0000-0x000007FEEDC4D000-memory.dmp

Filesize
9.6MB

Download
memory/1708-15-0x000007FEED2B0000-0x000007FEEDC4D000-memory.dmp

Filesize
9.6MB

Download
memory/1708-9-0x00000000022D0000-0x00000000022D8000-memory.dmp

Filesize
32KB

Download
memory/1708-7-0x000007FEED56E000-0x000007FEED56F000-memory.dmp

Filesize
4KB

Download
memory/2772-49-0x000000001B700000-0x000000001B9E2000-memory.dmp

Filesize
2.9MB

Download
memory/2896-21-0x000000001B510000-0x000000001B7F2000-memory.dmp

Filesize
2.9MB

Download
memory/2896-22-0x0000000002770000-0x0000000002778000-memory.dmp

Filesize
32KB

Download