Resubmissions

15-04-2024 16:39

240415-t5y2nsba78 10

15-04-2024 16:36

240415-t4jwcsba49 10

Analysis

  • max time kernel
    66s
  • max time network
    72s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15-04-2024 16:36

General

  • Target

    Velonity.exe

  • Size

    1.2MB

  • MD5

    acfe7dcbe9723382722bcdf52bbb73e8

  • SHA1

    b60644750f40d2ee4052c8e6dd588ad99288bc6f

  • SHA256

    455784b6d8edafa34ac88e20d2ca34a8e26d6ae8c89fc77875c856feab347ef3

  • SHA512

    841e20a08f6c59c3162a3fd4e6d44276c0025c7cc75261e481c21a4b4df629c5d603c4bda3d6f927ac24186d4a3fd162ec5e2d05c97528b37e8cf9efc4d530cb

  • SSDEEP

    24576:vDM2Ny922wrKSFocmJgYV1lJ544YcRgbJhf1foTh9ZCLzAxy+7:rzeEWSFoDg45gbJ30h9ZJy

Score
10/10

Malware Config

Extracted

Family

umbral

C2

https://discord.com/api/webhooks/1226889417617309827/aGM_hNDP-J3NT9u8SNSCocRMlBp_FCEGgjkp6sBXd1GO8FD5GFf_AHKBNovo138ckADt

Signatures

  • Detect Umbral payload 5 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 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.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs
  • Detects videocard installed 1 TTPs 1 IoCs

    Uses WMIC.exe to determine videocard installed.

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 11 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 39 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Velonity.exe
    "C:\Users\Admin\AppData\Local\Temp\Velonity.exe"
    1⤵
    • Drops file in Drivers directory
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1144
    • C:\Windows\SysWOW64\Wbem\wmic.exe
      "wmic.exe" csproduct get uuid
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:4372
    • C:\Windows\SysWOW64\attrib.exe
      "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\Velonity.exe"
      2⤵
      • Views/modifies file attributes
      PID:4404
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\Velonity.exe'
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4800
    • C:\Windows\SysWOW64\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:1832
    • C:\Windows\SysWOW64\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:1280
    • C:\Windows\SysWOW64\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:3612
    • C:\Windows\SysWOW64\Wbem\wmic.exe
      "wmic.exe" os get Caption
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2220
    • C:\Windows\SysWOW64\Wbem\wmic.exe
      "wmic.exe" computersystem get totalphysicalmemory
      2⤵
        PID:428
      • C:\Windows\SysWOW64\Wbem\wmic.exe
        "wmic.exe" csproduct get uuid
        2⤵
          PID:2168
        • C:\Windows\SysWOW64\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:3872
        • C:\Windows\SysWOW64\Wbem\wmic.exe
          "wmic" path win32_VideoController get name
          2⤵
          • Detects videocard installed
          PID:1956
        • C:\Windows\SysWOW64\cmd.exe
          "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\Velonity.exe" && pause
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:180
          • C:\Windows\SysWOW64\PING.EXE
            ping localhost
            3⤵
            • Runs ping.exe
            PID:2856

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

        Filesize

        2KB

        MD5

        3d086a433708053f9bf9523e1d87a4e8

        SHA1

        b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28

        SHA256

        6f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69

        SHA512

        931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd

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

        Filesize

        15KB

        MD5

        77f2aef8e7b008dcaf77605ab0bd0ac8

        SHA1

        dcb97920125806c0429b1fe59f9053bf512635a5

        SHA256

        b8e26374f2600b364ee166ec4ae5b07240bca5ecba6f603fa8e9fe122ce98d33

        SHA512

        ae9874d68b7f70dd9b38f528597a54ff6a42b61194101989e24ed3e6b7410f9882a1309d14a9a49bef6f4e98d003d12a6d294959cd404e5d213c48f28fbc071f

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

        Filesize

        18KB

        MD5

        121e5b2f99c163519b5e7b1ce09c9e11

        SHA1

        81b3c7cce3c479bc5e4a51bb761a11e6c71230e4

        SHA256

        e98760f7f3282e5de851ccfd5d62348499f51319f630ef9e4932b8b3504e97ff

        SHA512

        bf576a1d00a169f5e30666ef70c69577c279ff0906408a84c7b76ebdf7fd624af0da578a193421d801d9d737b069a30bd0c002a6e0d45b6cdf73756d4cc0bdc0

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

        Filesize

        17KB

        MD5

        f99ee7dd9cba77f6d98a7ced6e52e205

        SHA1

        9c5d3e24474ea9a65b7af503f186e2bd60c7327a

        SHA256

        e6da2c4e4086f8b0b78063074d70bcc29e3694c710e1dfd378d1831062d2d27f

        SHA512

        02035f77108231f5857593e64a658cacef1fab0959c9ef7718226e87e0cc72f7e9835d98d410f960fdb8dd1086fa2b4210b3f6398ba914f5178f08b606e1d2a7

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

        Filesize

        18KB

        MD5

        6f1f1c041563ab44217931614d684c31

        SHA1

        7303f927fb53f3df498fbb69419f0c9fa745dafe

        SHA256

        644fe29fdb6d3f2518846fd551bc175720b63241ddcedb6db4c0974628bcf2c7

        SHA512

        008c0da3a5feb535c28c1b1079c0fab2f3545646b8fe81af8eec562e78361a848e671d321c77049e5dfa83a524bb3e1fd9da5f94e56f21efdbcba3620cc52599

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_bnjkar4n.poy.ps1

        Filesize

        60B

        MD5

        d17fe0a3f47be24a6453e9ef58c94641

        SHA1

        6ab83620379fc69f80c0242105ddffd7d98d5d9d

        SHA256

        96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

        SHA512

        5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

      • memory/1144-125-0x0000000008950000-0x000000000895A000-memory.dmp

        Filesize

        40KB

      • memory/1144-46-0x0000000000010000-0x00000000003E8000-memory.dmp

        Filesize

        3.8MB

      • memory/1144-129-0x0000000000010000-0x00000000003E8000-memory.dmp

        Filesize

        3.8MB

      • memory/1144-126-0x0000000009AB0000-0x0000000009AC2000-memory.dmp

        Filesize

        72KB

      • memory/1144-75-0x0000000008920000-0x000000000893E000-memory.dmp

        Filesize

        120KB

      • memory/1144-5-0x0000000005FD0000-0x0000000005FE0000-memory.dmp

        Filesize

        64KB

      • memory/1144-4-0x0000000006450000-0x00000000069F4000-memory.dmp

        Filesize

        5.6MB

      • memory/1144-0-0x0000000000010000-0x00000000003E8000-memory.dmp

        Filesize

        3.8MB

      • memory/1144-3-0x0000000005E00000-0x0000000005E92000-memory.dmp

        Filesize

        584KB

      • memory/1144-152-0x0000000000010000-0x00000000003E8000-memory.dmp

        Filesize

        3.8MB

      • memory/1144-1-0x0000000073FC0000-0x0000000074770000-memory.dmp

        Filesize

        7.7MB

      • memory/1144-2-0x0000000000010000-0x00000000003E8000-memory.dmp

        Filesize

        3.8MB

      • memory/1144-66-0x0000000000010000-0x00000000003E8000-memory.dmp

        Filesize

        3.8MB

      • memory/1144-68-0x0000000073FC0000-0x0000000074770000-memory.dmp

        Filesize

        7.7MB

      • memory/1144-84-0x0000000005FD0000-0x0000000005FE0000-memory.dmp

        Filesize

        64KB

      • memory/1144-73-0x0000000008600000-0x0000000008676000-memory.dmp

        Filesize

        472KB

      • memory/1144-74-0x00000000088D0000-0x0000000008920000-memory.dmp

        Filesize

        320KB

      • memory/1280-105-0x0000000006A50000-0x0000000006A72000-memory.dmp

        Filesize

        136KB

      • memory/1280-77-0x0000000005040000-0x0000000005050000-memory.dmp

        Filesize

        64KB

      • memory/1280-76-0x0000000073FC0000-0x0000000074770000-memory.dmp

        Filesize

        7.7MB

      • memory/1280-91-0x0000000005040000-0x0000000005050000-memory.dmp

        Filesize

        64KB

      • memory/1280-101-0x0000000005EA0000-0x00000000061F4000-memory.dmp

        Filesize

        3.3MB

      • memory/1280-103-0x0000000006810000-0x000000000685C000-memory.dmp

        Filesize

        304KB

      • memory/1280-104-0x0000000005040000-0x0000000005050000-memory.dmp

        Filesize

        64KB

      • memory/1280-107-0x0000000073FC0000-0x0000000074770000-memory.dmp

        Filesize

        7.7MB

      • memory/1832-55-0x0000000004D50000-0x0000000004D60000-memory.dmp

        Filesize

        64KB

      • memory/1832-70-0x0000000073FC0000-0x0000000074770000-memory.dmp

        Filesize

        7.7MB

      • memory/1832-54-0x0000000073FC0000-0x0000000074770000-memory.dmp

        Filesize

        7.7MB

      • memory/1832-69-0x0000000004D50000-0x0000000004D60000-memory.dmp

        Filesize

        64KB

      • memory/3612-110-0x0000000004940000-0x0000000004950000-memory.dmp

        Filesize

        64KB

      • memory/3612-109-0x0000000004940000-0x0000000004950000-memory.dmp

        Filesize

        64KB

      • memory/3612-121-0x0000000004940000-0x0000000004950000-memory.dmp

        Filesize

        64KB

      • memory/3612-123-0x0000000073FC0000-0x0000000074770000-memory.dmp

        Filesize

        7.7MB

      • memory/3612-108-0x0000000073FC0000-0x0000000074770000-memory.dmp

        Filesize

        7.7MB

      • memory/3872-132-0x0000000002520000-0x0000000002530000-memory.dmp

        Filesize

        64KB

      • memory/3872-131-0x0000000002520000-0x0000000002530000-memory.dmp

        Filesize

        64KB

      • memory/3872-130-0x0000000073FC0000-0x0000000074770000-memory.dmp

        Filesize

        7.7MB

      • memory/3872-142-0x0000000005940000-0x0000000005C94000-memory.dmp

        Filesize

        3.3MB

      • memory/3872-144-0x00000000060B0000-0x00000000060FC000-memory.dmp

        Filesize

        304KB

      • memory/3872-145-0x0000000002520000-0x0000000002530000-memory.dmp

        Filesize

        64KB

      • memory/3872-147-0x0000000073FC0000-0x0000000074770000-memory.dmp

        Filesize

        7.7MB

      • memory/4800-23-0x00000000062B0000-0x0000000006604000-memory.dmp

        Filesize

        3.3MB

      • memory/4800-41-0x0000000007A10000-0x0000000007A2A000-memory.dmp

        Filesize

        104KB

      • memory/4800-26-0x0000000002DF0000-0x0000000002E00000-memory.dmp

        Filesize

        64KB

      • memory/4800-25-0x0000000006740000-0x000000000678C000-memory.dmp

        Filesize

        304KB

      • memory/4800-24-0x00000000066F0000-0x000000000670E000-memory.dmp

        Filesize

        120KB

      • memory/4800-49-0x0000000007D30000-0x0000000007D38000-memory.dmp

        Filesize

        32KB

      • memory/4800-22-0x00000000061D0000-0x0000000006236000-memory.dmp

        Filesize

        408KB

      • memory/4800-18-0x00000000060F0000-0x0000000006156000-memory.dmp

        Filesize

        408KB

      • memory/4800-28-0x000000006FE60000-0x000000006FEAC000-memory.dmp

        Filesize

        304KB

      • memory/4800-38-0x0000000006CB0000-0x0000000006CCE000-memory.dmp

        Filesize

        120KB

      • memory/4800-39-0x00000000078E0000-0x0000000007983000-memory.dmp

        Filesize

        652KB

      • memory/4800-16-0x0000000005F50000-0x0000000005F72000-memory.dmp

        Filesize

        136KB

      • memory/4800-40-0x0000000008050000-0x00000000086CA000-memory.dmp

        Filesize

        6.5MB

      • memory/4800-27-0x00000000078A0000-0x00000000078D2000-memory.dmp

        Filesize

        200KB

      • memory/4800-10-0x0000000005820000-0x0000000005E48000-memory.dmp

        Filesize

        6.2MB

      • memory/4800-8-0x0000000002DF0000-0x0000000002E00000-memory.dmp

        Filesize

        64KB

      • memory/4800-9-0x0000000002DF0000-0x0000000002E00000-memory.dmp

        Filesize

        64KB

      • memory/4800-42-0x0000000007A80000-0x0000000007A8A000-memory.dmp

        Filesize

        40KB

      • memory/4800-43-0x0000000007C90000-0x0000000007D26000-memory.dmp

        Filesize

        600KB

      • memory/4800-44-0x0000000007C10000-0x0000000007C21000-memory.dmp

        Filesize

        68KB

      • memory/4800-45-0x0000000007C40000-0x0000000007C4E000-memory.dmp

        Filesize

        56KB

      • memory/4800-7-0x0000000073FC0000-0x0000000074770000-memory.dmp

        Filesize

        7.7MB

      • memory/4800-47-0x0000000007C50000-0x0000000007C64000-memory.dmp

        Filesize

        80KB

      • memory/4800-48-0x0000000007D50000-0x0000000007D6A000-memory.dmp

        Filesize

        104KB

      • memory/4800-52-0x0000000073FC0000-0x0000000074770000-memory.dmp

        Filesize

        7.7MB

      • memory/4800-6-0x0000000002E00000-0x0000000002E36000-memory.dmp

        Filesize

        216KB