Analysis

  • max time kernel
    136s
  • max time network
    134s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250217-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/02/2025, 08:02

General

  • Target

    attach bank copy 9840.exe

  • Size

    974KB

  • MD5

    e2f95206ce22780f53f11cf27d7219e2

  • SHA1

    484c55ec5970417fd2a9a79222c916362d1ee51c

  • SHA256

    075665ebaec6c2481ff19177b4887d9ff996c4ead668dc4cc15a64264585fade

  • SHA512

    103219e9cc76dc7bccccac56e80ebe0fc7d5bcc8151ba1e12cd6fa1a2af9f17793219b4b7e5839aa6f7bdb14b2942f28a8ef2190a8a8bacbc548941716cc6eae

  • SSDEEP

    24576:lf/2eBiCvoXQIwhS6rYEuE5Da08vv80mCCM:lfOuRogIGS8JuEa08N5

Malware Config

Extracted

Family

vipkeylogger

Credentials

Signatures

  • VIPKeylogger

    VIPKeylogger is a keylogger and infostealer written in C# and it resembles SnakeKeylogger that was found in 2020.

  • Vipkeylogger family
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 3 TTPs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Looks up external IP address via web service 3 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 36 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\attach bank copy 9840.exe
    "C:\Users\Admin\AppData\Local\Temp\attach bank copy 9840.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1924
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\attach bank copy 9840.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4328
    • C:\Users\Admin\AppData\Local\Temp\attach bank copy 9840.exe
      "C:\Users\Admin\AppData\Local\Temp\attach bank copy 9840.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:3192
  • C:\Windows\system32\wbem\WmiApSrv.exe
    C:\Windows\system32\wbem\WmiApSrv.exe
    1⤵
      PID:4264

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\attach bank copy 9840.exe.log

      Filesize

      1KB

      MD5

      6b7edb1a861d1474ebb9de8e77537c3f

      SHA1

      160b063b8de2daa16bb73806ef1ebc5506b018e2

      SHA256

      48bbaea326363c00240f62ef1cb5e59b068f1396cafda23c0dd7f7ff739f35b7

      SHA512

      63631b6b3e9ccadf64bc84ac9c210cd38e1e3fc2f700a4c87baff3e2a4fa5276e7eb74d808a2d6a6bb363c61422ad8abdad56e4055eaa3a2ac22028d88ed34e2

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_4daswt5f.uvi.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • memory/1924-10-0x00000000752CE000-0x00000000752CF000-memory.dmp

      Filesize

      4KB

    • memory/1924-11-0x00000000752C0000-0x0000000075A70000-memory.dmp

      Filesize

      7.7MB

    • memory/1924-4-0x0000000005C30000-0x00000000061D4000-memory.dmp

      Filesize

      5.6MB

    • memory/1924-5-0x0000000005780000-0x000000000578A000-memory.dmp

      Filesize

      40KB

    • memory/1924-6-0x00000000752C0000-0x0000000075A70000-memory.dmp

      Filesize

      7.7MB

    • memory/1924-7-0x0000000006890000-0x000000000692C000-memory.dmp

      Filesize

      624KB

    • memory/1924-8-0x0000000007640000-0x00000000076F4000-memory.dmp

      Filesize

      720KB

    • memory/1924-9-0x0000000005BE0000-0x0000000005BF8000-memory.dmp

      Filesize

      96KB

    • memory/1924-2-0x0000000004B50000-0x0000000004BE2000-memory.dmp

      Filesize

      584KB

    • memory/1924-3-0x00000000051B0000-0x000000000567C000-memory.dmp

      Filesize

      4.8MB

    • memory/1924-12-0x0000000007800000-0x000000000788E000-memory.dmp

      Filesize

      568KB

    • memory/1924-0-0x00000000752CE000-0x00000000752CF000-memory.dmp

      Filesize

      4KB

    • memory/1924-1-0x00000000000B0000-0x00000000001A8000-memory.dmp

      Filesize

      992KB

    • memory/1924-16-0x00000000752C0000-0x0000000075A70000-memory.dmp

      Filesize

      7.7MB

    • memory/3192-17-0x00000000752C0000-0x0000000075A70000-memory.dmp

      Filesize

      7.7MB

    • memory/3192-62-0x00000000067C0000-0x0000000006810000-memory.dmp

      Filesize

      320KB

    • memory/3192-61-0x0000000006930000-0x0000000006AF2000-memory.dmp

      Filesize

      1.8MB

    • memory/3192-19-0x00000000752C0000-0x0000000075A70000-memory.dmp

      Filesize

      7.7MB

    • memory/3192-13-0x0000000000400000-0x0000000000448000-memory.dmp

      Filesize

      288KB

    • memory/3192-60-0x00000000752C0000-0x0000000075A70000-memory.dmp

      Filesize

      7.7MB

    • memory/4328-21-0x0000000005040000-0x0000000005062000-memory.dmp

      Filesize

      136KB

    • memory/4328-28-0x00000000059E0000-0x0000000005A46000-memory.dmp

      Filesize

      408KB

    • memory/4328-33-0x0000000005B50000-0x0000000005EA4000-memory.dmp

      Filesize

      3.3MB

    • memory/4328-34-0x0000000006000000-0x000000000601E000-memory.dmp

      Filesize

      120KB

    • memory/4328-35-0x0000000006020000-0x000000000606C000-memory.dmp

      Filesize

      304KB

    • memory/4328-36-0x0000000006FE0000-0x0000000007012000-memory.dmp

      Filesize

      200KB

    • memory/4328-37-0x0000000070CD0000-0x0000000070D1C000-memory.dmp

      Filesize

      304KB

    • memory/4328-47-0x00000000065D0000-0x00000000065EE000-memory.dmp

      Filesize

      120KB

    • memory/4328-48-0x0000000007220000-0x00000000072C3000-memory.dmp

      Filesize

      652KB

    • memory/4328-49-0x0000000007970000-0x0000000007FEA000-memory.dmp

      Filesize

      6.5MB

    • memory/4328-50-0x0000000007330000-0x000000000734A000-memory.dmp

      Filesize

      104KB

    • memory/4328-51-0x00000000073A0000-0x00000000073AA000-memory.dmp

      Filesize

      40KB

    • memory/4328-52-0x00000000075B0000-0x0000000007646000-memory.dmp

      Filesize

      600KB

    • memory/4328-53-0x0000000007530000-0x0000000007541000-memory.dmp

      Filesize

      68KB

    • memory/4328-54-0x0000000007560000-0x000000000756E000-memory.dmp

      Filesize

      56KB

    • memory/4328-55-0x0000000007570000-0x0000000007584000-memory.dmp

      Filesize

      80KB

    • memory/4328-56-0x0000000007670000-0x000000000768A000-memory.dmp

      Filesize

      104KB

    • memory/4328-57-0x0000000007650000-0x0000000007658000-memory.dmp

      Filesize

      32KB

    • memory/4328-27-0x00000000050E0000-0x0000000005146000-memory.dmp

      Filesize

      408KB

    • memory/4328-20-0x00000000052C0000-0x00000000058E8000-memory.dmp

      Filesize

      6.2MB

    • memory/4328-18-0x00000000026C0000-0x00000000026F6000-memory.dmp

      Filesize

      216KB