Analysis

  • max time kernel
    146s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-03-2024 17:09

General

  • Target

    0270d5596c31ec92bb6eaacb220ef3ac5ee8e1df60d38e46b8d1b7b5b2a9b519.exe

  • Size

    229KB

  • MD5

    3cf0aadd7a3224eea6a51986d4762872

  • SHA1

    b0a6bcb3a6b4fbb45e808b64877dea61500f588a

  • SHA256

    0270d5596c31ec92bb6eaacb220ef3ac5ee8e1df60d38e46b8d1b7b5b2a9b519

  • SHA512

    88a6992e76cfb14d3f0039c3d14efce33aad9f3631f23f2e276d753dedbd032d9e350472877457084070fbbed1f44be8cd116c800ffaf360f21240718226b209

  • SSDEEP

    6144:lloZMUrIkd8g+EtXHkv/iD4fOuiiAfboAxUyzzq9wab8e1mWi:noZrL+EP8fOuiiAfboAxUyzzqpg

Score
10/10

Malware Config

Signatures

  • Detect Umbral payload 1 IoCs
  • Umbral

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

  • Detects executables attemping to enumerate video devices using WMI 1 IoCs
  • Detects executables containing possible sandbox analysis VM names 1 IoCs
  • Detects executables containing possible sandbox analysis VM usernames 1 IoCs
  • Detects executables containing possible sandbox system UUIDs 1 IoCs
  • Drops file in Drivers directory 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Detects videocard installed 1 TTPs 1 IoCs

    Uses WMIC.exe to determine videocard installed.

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0270d5596c31ec92bb6eaacb220ef3ac5ee8e1df60d38e46b8d1b7b5b2a9b519.exe
    "C:\Users\Admin\AppData\Local\Temp\0270d5596c31ec92bb6eaacb220ef3ac5ee8e1df60d38e46b8d1b7b5b2a9b519.exe"
    1⤵
    • Drops file in Drivers directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3408
    • C:\Windows\SYSTEM32\attrib.exe
      "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\0270d5596c31ec92bb6eaacb220ef3ac5ee8e1df60d38e46b8d1b7b5b2a9b519.exe"
      2⤵
      • Views/modifies file attributes
      PID:1032
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\0270d5596c31ec92bb6eaacb220ef3ac5ee8e1df60d38e46b8d1b7b5b2a9b519.exe'
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2252
    • 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⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3092
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "powershell.exe" Get-ItemPropertyValue -Path HKCU:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3976
    • 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:2936
    • C:\Windows\System32\Wbem\wmic.exe
      "wmic.exe" os get Caption
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:4964
    • C:\Windows\System32\Wbem\wmic.exe
      "wmic.exe" computersystem get totalphysicalmemory
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3020
    • C:\Windows\System32\Wbem\wmic.exe
      "wmic.exe" csproduct get uuid
      2⤵
        PID:4068
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell.exe" Get-ItemPropertyValue -Path 'HKLM:System\CurrentControlSet\Control\Session Manager\Environment' -Name PROCESSOR_IDENTIFIER
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:1828
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic" path win32_VideoController get name
        2⤵
        • Detects videocard installed
        PID:1480
      • C:\Windows\SYSTEM32\cmd.exe
        "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\0270d5596c31ec92bb6eaacb220ef3ac5ee8e1df60d38e46b8d1b7b5b2a9b519.exe" && pause
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:640
        • C:\Windows\system32\PING.EXE
          ping localhost
          3⤵
          • Runs ping.exe
          PID:4436

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

      Filesize

      2KB

      MD5

      d85ba6ff808d9e5444a4b369f5bc2730

      SHA1

      31aa9d96590fff6981b315e0b391b575e4c0804a

      SHA256

      84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

      SHA512

      8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

      Filesize

      1KB

      MD5

      92382908106bf04aac6575ae0e55073f

      SHA1

      b164dd606b60ada42fe843963f95e14e92d5d86a

      SHA256

      1332dc373efa610424b48ae9955247275f4f94cfeecec93a5121784ed8d6b3db

      SHA512

      d6ee3e3776f683b2a4eaf4fd92e2cd2b9412d85fb57556130d8cabf52e180fb17b5dcdfec9ccd0b3b80bed2816c0bd2d25de35580b859e7799b7cb61071edb3f

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

      Filesize

      944B

      MD5

      6d3e9c29fe44e90aae6ed30ccf799ca8

      SHA1

      c7974ef72264bbdf13a2793ccf1aed11bc565dce

      SHA256

      2360634e63e8f0b5748e2c56ebb8f4aa78e71008ea7b5c9ca1c49be03b49557d

      SHA512

      60c38c4367352537545d859f64b9c5cbada94240478d1d039fd27b5ecba4dc1c90051557c16d802269703b873546ead416279c0a80c6fd5e49ad361cef22596a

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

      Filesize

      948B

      MD5

      2af06a6b36db9473e4a7d9c7ab72b70b

      SHA1

      8ef34b9b961e51bdd1b8d7d9db2ec1b0a4764645

      SHA256

      18a2aa7e245c6732f95fb7749b2b4d29007f2c56a9c5bfbc5e3c127bdfe5f158

      SHA512

      3495567a5d5af94ae27be51313d9e2630c52017d808042fe0d56baa34fa1d246eb15c253d14c77c77a1d8f2f1c81680e623044ae95415b095696e7fa141ac7cf

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

      Filesize

      1KB

      MD5

      276798eeb29a49dc6e199768bc9c2e71

      SHA1

      5fdc8ccb897ac2df7476fbb07517aca5b7a6205b

      SHA256

      cd0a1056e8f1b6cb5cb328532239d802f4e2aa8f8fcdc0fcb487684bd68e0dcc

      SHA512

      0d34fce64bbefc57d64fa6e03ca886952263d5f24df9c1c4cce6a1e8f5a47a9a21e9820f8d38caa7f7b43a52336ce00b738ea18419aaa7c788b72e04ce19e4f2

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_1rwtmwlu.ipr.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • memory/1828-98-0x0000019DFC580000-0x0000019DFC590000-memory.dmp

      Filesize

      64KB

    • memory/1828-105-0x00007FFE27BA0000-0x00007FFE28661000-memory.dmp

      Filesize

      10.8MB

    • memory/1828-91-0x00007FFE27BA0000-0x00007FFE28661000-memory.dmp

      Filesize

      10.8MB

    • memory/1828-92-0x0000019DFC580000-0x0000019DFC590000-memory.dmp

      Filesize

      64KB

    • memory/2252-10-0x0000019DB58C0000-0x0000019DB58D0000-memory.dmp

      Filesize

      64KB

    • memory/2252-18-0x00007FFE27BA0000-0x00007FFE28661000-memory.dmp

      Filesize

      10.8MB

    • memory/2252-12-0x0000019DB58C0000-0x0000019DB58D0000-memory.dmp

      Filesize

      64KB

    • memory/2252-9-0x0000019DB5A10000-0x0000019DB5A32000-memory.dmp

      Filesize

      136KB

    • memory/2252-8-0x00007FFE27BA0000-0x00007FFE28661000-memory.dmp

      Filesize

      10.8MB

    • memory/2936-84-0x00007FFE27BA0000-0x00007FFE28661000-memory.dmp

      Filesize

      10.8MB

    • memory/2936-82-0x0000028A98980000-0x0000028A98990000-memory.dmp

      Filesize

      64KB

    • memory/2936-81-0x0000028A98980000-0x0000028A98990000-memory.dmp

      Filesize

      64KB

    • memory/2936-68-0x00007FFE27BA0000-0x00007FFE28661000-memory.dmp

      Filesize

      10.8MB

    • memory/2936-69-0x0000028A98980000-0x0000028A98990000-memory.dmp

      Filesize

      64KB

    • memory/3092-21-0x0000025807DE0000-0x0000025807DF0000-memory.dmp

      Filesize

      64KB

    • memory/3092-20-0x00007FFE27BA0000-0x00007FFE28661000-memory.dmp

      Filesize

      10.8MB

    • memory/3092-22-0x0000025807DE0000-0x0000025807DF0000-memory.dmp

      Filesize

      64KB

    • memory/3092-33-0x0000025807DE0000-0x0000025807DF0000-memory.dmp

      Filesize

      64KB

    • memory/3092-35-0x00007FFE27BA0000-0x00007FFE28661000-memory.dmp

      Filesize

      10.8MB

    • memory/3408-86-0x000001B6CF880000-0x000001B6CF88A000-memory.dmp

      Filesize

      40KB

    • memory/3408-0-0x000001B6B51B0000-0x000001B6B51F0000-memory.dmp

      Filesize

      256KB

    • memory/3408-38-0x000001B6CF970000-0x000001B6CF9C0000-memory.dmp

      Filesize

      320KB

    • memory/3408-80-0x00007FFE27BA0000-0x00007FFE28661000-memory.dmp

      Filesize

      10.8MB

    • memory/3408-110-0x00007FFE27BA0000-0x00007FFE28661000-memory.dmp

      Filesize

      10.8MB

    • memory/3408-1-0x00007FFE27BA0000-0x00007FFE28661000-memory.dmp

      Filesize

      10.8MB

    • memory/3408-39-0x000001B6CF9F0000-0x000001B6CFA0E000-memory.dmp

      Filesize

      120KB

    • memory/3408-87-0x000001B6CF8B0000-0x000001B6CF8C2000-memory.dmp

      Filesize

      72KB

    • memory/3408-37-0x000001B6CF8F0000-0x000001B6CF966000-memory.dmp

      Filesize

      472KB

    • memory/3408-90-0x000001B6B55B0000-0x000001B6B55C0000-memory.dmp

      Filesize

      64KB

    • memory/3408-2-0x000001B6B55B0000-0x000001B6B55C0000-memory.dmp

      Filesize

      64KB

    • memory/3976-65-0x0000019FF4A20000-0x0000019FF4A30000-memory.dmp

      Filesize

      64KB

    • memory/3976-41-0x0000019FF4A20000-0x0000019FF4A30000-memory.dmp

      Filesize

      64KB

    • memory/3976-42-0x0000019FF4A20000-0x0000019FF4A30000-memory.dmp

      Filesize

      64KB

    • memory/3976-67-0x00007FFE27BA0000-0x00007FFE28661000-memory.dmp

      Filesize

      10.8MB

    • memory/3976-40-0x00007FFE27BA0000-0x00007FFE28661000-memory.dmp

      Filesize

      10.8MB