umbral | 0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0

Analysis

max time kernel
118s
max time network
120s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
21-08-2024 09:40

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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/2948-1-0x00000000011B0000-0x00000000011F0000-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
2288	powershell.exe
2700	powershell.exe
1848	powershell.exe
2260	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
2552	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
8	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
2552	cmd.exe
2472	PING.EXE

Detects videocard installed 1 TTPs 1 IoCs

Uses WMIC.exe to determine videocard installed.

System Information Discovery

T1082

pid	Process
1776	wmic.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2472	PING.EXE

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2288	powershell.exe
2260	powershell.exe
2700	powershell.exe
2652	powershell.exe
1848	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2948	0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe
Token: SeDebugPrivilege	2288	powershell.exe
Token: SeDebugPrivilege	2260	powershell.exe
Token: SeDebugPrivilege	2700	powershell.exe
Token: SeDebugPrivilege	2652	powershell.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: SeIncreaseQuotaPrivilege	1712	wmic.exe
Token: SeSecurityPrivilege	1712	wmic.exe
Token: SeTakeOwnershipPrivilege	1712	wmic.exe
Token: SeLoadDriverPrivilege	1712	wmic.exe
Token: SeSystemProfilePrivilege	1712	wmic.exe
Token: SeSystemtimePrivilege	1712	wmic.exe
Token: SeProfSingleProcessPrivilege	1712	wmic.exe
Token: SeIncBasePriorityPrivilege	1712	wmic.exe
Token: SeCreatePagefilePrivilege	1712	wmic.exe
Token: SeBackupPrivilege	1712	wmic.exe
Token: SeRestorePrivilege	1712	wmic.exe
Token: SeShutdownPrivilege	1712	wmic.exe
Token: SeDebugPrivilege	1712	wmic.exe
Token: SeSystemEnvironmentPrivilege	1712	wmic.exe
Token: SeRemoteShutdownPrivilege	1712	wmic.exe
Token: SeUndockPrivilege	1712	wmic.exe
Token: SeManageVolumePrivilege	1712	wmic.exe
Token: 33	1712	wmic.exe
Token: 34	1712	wmic.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2948 wrote to memory of 1660	2948	0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe	28
PID 2948 wrote to memory of 1660	2948	0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe	28
PID 2948 wrote to memory of 1660	2948	0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe	28
PID 2948 wrote to memory of 2288	2948	0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe	30
PID 2948 wrote to memory of 2288	2948	0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe	30
PID 2948 wrote to memory of 2288	2948	0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe	30
PID 2948 wrote to memory of 2260	2948	0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe	32
PID 2948 wrote to memory of 2260	2948	0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe	32
PID 2948 wrote to memory of 2260	2948	0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe	32
PID 2948 wrote to memory of 2700	2948	0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe	34
PID 2948 wrote to memory of 2700	2948	0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe	34
PID 2948 wrote to memory of 2700	2948	0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe	34
PID 2948 wrote to memory of 2652	2948	0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe	38
PID 2948 wrote to memory of 2652	2948	0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe	38
PID 2948 wrote to memory of 2652	2948	0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe	38
PID 2948 wrote to memory of 2116	2948	0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe	40
PID 2948 wrote to memory of 2116	2948	0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe	40
PID 2948 wrote to memory of 2116	2948	0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe	40
PID 2948 wrote to memory of 1712	2948	0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe	43
PID 2948 wrote to memory of 1712	2948	0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe	43
PID 2948 wrote to memory of 1712	2948	0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe	43
PID 2948 wrote to memory of 1140	2948	0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe	45
PID 2948 wrote to memory of 1140	2948	0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe	45
PID 2948 wrote to memory of 1140	2948	0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe	45
PID 2948 wrote to memory of 1848	2948	0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe	47
PID 2948 wrote to memory of 1848	2948	0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe	47
PID 2948 wrote to memory of 1848	2948	0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe	47
PID 2948 wrote to memory of 1776	2948	0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe	49
PID 2948 wrote to memory of 1776	2948	0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe	49
PID 2948 wrote to memory of 1776	2948	0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe	49
PID 2948 wrote to memory of 2552	2948	0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe	51
PID 2948 wrote to memory of 2552	2948	0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe	51
PID 2948 wrote to memory of 2552	2948	0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe	51
PID 2552 wrote to memory of 2472	2552	cmd.exe	53
PID 2552 wrote to memory of 2472	2552	cmd.exe	53
PID 2552 wrote to memory of 2472	2552	cmd.exe	53

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
1660	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:2948
- C:\Windows\system32\attrib.exe
  "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\0bb64c9c095b99117d8250f97cda9a257985ce3ba6b5891796c7ece426b61ed0.exe"
  2⤵
  - Views/modifies file attributes
  PID:1660
- 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:2288
- 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:2260
- 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:2700
- 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:2652
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" os get Caption
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2116
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" computersystem get totalphysicalmemory
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1712
- C:\Windows\System32\Wbem\wmic.exe
  "wmic.exe" csproduct get uuid
  2⤵
  PID:1140
- 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:1848
- C:\Windows\System32\Wbem\wmic.exe
  "wmic" path win32_VideoController get name
  2⤵
  - Detects videocard installed
  PID:1776
- 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:2552
- - C:\Windows\system32\PING.EXE
    ping localhost
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:2472

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

Filesize
7KB

MD5
6f4a5049529c4c985020f326a87c40f9

SHA1
422025dbc1b14aece84544c112fc12023bf3fb72

SHA256
c3524cbfa3eaa0ab051a2b4bb5151e714f8917df94a3ce5257b562ef778088f8

SHA512
9cfbc17f7d7c9c6e86c6b0a10f91bfd455dcfe16b0e45c6996dbd615fb53ee665af0feccbd7e902b06e47be0742e7f1bf6bd191bcfd93bc3b6b3c09b8cafb396

Download Submit
memory/2260-23-0x0000000000570000-0x0000000000578000-memory.dmp

Filesize
32KB

Download
memory/2260-21-0x000000001B650000-0x000000001B932000-memory.dmp

Filesize
2.9MB

Download
memory/2288-8-0x000000001B770000-0x000000001BA52000-memory.dmp

Filesize
2.9MB

Download
memory/2288-14-0x000007FEEE100000-0x000007FEEEA9D000-memory.dmp

Filesize
9.6MB

Download
memory/2288-13-0x000007FEEE100000-0x000007FEEEA9D000-memory.dmp

Filesize
9.6MB

Download
memory/2288-12-0x000007FEEE100000-0x000007FEEEA9D000-memory.dmp

Filesize
9.6MB

Download
memory/2288-11-0x000007FEEE100000-0x000007FEEEA9D000-memory.dmp

Filesize
9.6MB

Download
memory/2288-10-0x000007FEEE100000-0x000007FEEEA9D000-memory.dmp

Filesize
9.6MB

Download
memory/2288-9-0x0000000001DA0000-0x0000000001DA8000-memory.dmp

Filesize
32KB

Download
memory/2288-7-0x000007FEEE3BE000-0x000007FEEE3BF000-memory.dmp

Filesize
4KB

Download
memory/2288-15-0x000007FEEE100000-0x000007FEEEA9D000-memory.dmp

Filesize
9.6MB

Download
memory/2948-0-0x000007FEF5243000-0x000007FEF5244000-memory.dmp

Filesize
4KB

Download
memory/2948-2-0x000007FEF5240000-0x000007FEF5C2C000-memory.dmp

Filesize
9.9MB

Download
memory/2948-24-0x000007FEF5240000-0x000007FEF5C2C000-memory.dmp

Filesize
9.9MB

Download
memory/2948-1-0x00000000011B0000-0x00000000011F0000-memory.dmp

Filesize
256KB

Download
memory/2948-22-0x000007FEF5243000-0x000007FEF5244000-memory.dmp

Filesize
4KB

Download
memory/2948-54-0x000007FEF5240000-0x000007FEF5C2C000-memory.dmp

Filesize
9.9MB

Download