Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-11-2024 10:41

General

  • Target

    denizbank 25.11.2024 E80 aspc.exe

  • Size

    737KB

  • MD5

    99334c137b21036493a00305cd3189da

  • SHA1

    3f4e22efc054a79fe7f1644b564f7a78d438f497

  • SHA256

    4e3703fac7cd57231af4066573369bddffd7d7c0f8d0c4b2d0fc006c42b87dcc

  • SHA512

    b734366e0678853abdf0e4704abeb88a545156b210d2243f9019e2506f40e6ba640f74b069e1753305245bd1a7376ff9dff462661419a52100e0d1901c976406

  • SSDEEP

    12288:h15vH3RbeXyL05XULmZtHnZW11dSduUmDAqpNjm8M4FK/e3LsNejj1x9/:hnvH35eXNYulnZ6dSTmDQ8LE/APj1n

Malware Config

Extracted

Family

vipkeylogger

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 1 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.

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\denizbank 25.11.2024 E80 aspc.exe
    "C:\Users\Admin\AppData\Local\Temp\denizbank 25.11.2024 E80 aspc.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4380
    • 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\denizbank 25.11.2024 E80 aspc.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3792
    • C:\Users\Admin\AppData\Local\Temp\denizbank 25.11.2024 E80 aspc.exe
      "C:\Users\Admin\AppData\Local\Temp\denizbank 25.11.2024 E80 aspc.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:4144

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_dcqpckbw.ozu.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/3792-51-0x0000000007050000-0x000000000705A000-memory.dmp

    Filesize

    40KB

  • memory/3792-16-0x0000000074870000-0x0000000075020000-memory.dmp

    Filesize

    7.7MB

  • memory/3792-50-0x0000000006FE0000-0x0000000006FFA000-memory.dmp

    Filesize

    104KB

  • memory/3792-21-0x0000000004D90000-0x0000000004DF6000-memory.dmp

    Filesize

    408KB

  • memory/3792-49-0x0000000007620000-0x0000000007C9A000-memory.dmp

    Filesize

    6.5MB

  • memory/3792-48-0x0000000006CA0000-0x0000000006D43000-memory.dmp

    Filesize

    652KB

  • memory/3792-47-0x0000000006C80000-0x0000000006C9E000-memory.dmp

    Filesize

    120KB

  • memory/3792-60-0x0000000074870000-0x0000000075020000-memory.dmp

    Filesize

    7.7MB

  • memory/3792-57-0x0000000007300000-0x0000000007308000-memory.dmp

    Filesize

    32KB

  • memory/3792-56-0x0000000007320000-0x000000000733A000-memory.dmp

    Filesize

    104KB

  • memory/3792-55-0x0000000007220000-0x0000000007234000-memory.dmp

    Filesize

    80KB

  • memory/3792-54-0x0000000007210000-0x000000000721E000-memory.dmp

    Filesize

    56KB

  • memory/3792-32-0x0000000005690000-0x00000000059E4000-memory.dmp

    Filesize

    3.3MB

  • memory/3792-15-0x0000000002430000-0x0000000002466000-memory.dmp

    Filesize

    216KB

  • memory/3792-17-0x0000000004EE0000-0x0000000005508000-memory.dmp

    Filesize

    6.2MB

  • memory/3792-52-0x0000000007260000-0x00000000072F6000-memory.dmp

    Filesize

    600KB

  • memory/3792-37-0x0000000070280000-0x00000000702CC000-memory.dmp

    Filesize

    304KB

  • memory/3792-19-0x0000000074870000-0x0000000075020000-memory.dmp

    Filesize

    7.7MB

  • memory/3792-20-0x0000000004CF0000-0x0000000004D12000-memory.dmp

    Filesize

    136KB

  • memory/3792-22-0x0000000004E00000-0x0000000004E66000-memory.dmp

    Filesize

    408KB

  • memory/3792-36-0x0000000006C40000-0x0000000006C72000-memory.dmp

    Filesize

    200KB

  • memory/3792-53-0x00000000071E0000-0x00000000071F1000-memory.dmp

    Filesize

    68KB

  • memory/3792-35-0x0000000005D20000-0x0000000005D6C000-memory.dmp

    Filesize

    304KB

  • memory/3792-33-0x0000000074870000-0x0000000075020000-memory.dmp

    Filesize

    7.7MB

  • memory/3792-34-0x0000000005C80000-0x0000000005C9E000-memory.dmp

    Filesize

    120KB

  • memory/4144-13-0x0000000074870000-0x0000000075020000-memory.dmp

    Filesize

    7.7MB

  • memory/4144-11-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/4144-18-0x0000000074870000-0x0000000075020000-memory.dmp

    Filesize

    7.7MB

  • memory/4144-61-0x0000000074870000-0x0000000075020000-memory.dmp

    Filesize

    7.7MB

  • memory/4144-62-0x0000000006900000-0x0000000006AC2000-memory.dmp

    Filesize

    1.8MB

  • memory/4144-63-0x00000000067A0000-0x00000000067F0000-memory.dmp

    Filesize

    320KB

  • memory/4144-64-0x0000000007000000-0x000000000752C000-memory.dmp

    Filesize

    5.2MB

  • memory/4380-14-0x0000000074870000-0x0000000075020000-memory.dmp

    Filesize

    7.7MB

  • memory/4380-0-0x000000007487E000-0x000000007487F000-memory.dmp

    Filesize

    4KB

  • memory/4380-5-0x0000000074870000-0x0000000075020000-memory.dmp

    Filesize

    7.7MB

  • memory/4380-2-0x0000000005260000-0x0000000005804000-memory.dmp

    Filesize

    5.6MB

  • memory/4380-1-0x0000000000130000-0x00000000001EE000-memory.dmp

    Filesize

    760KB

  • memory/4380-10-0x00000000061F0000-0x000000000627E000-memory.dmp

    Filesize

    568KB

  • memory/4380-9-0x0000000074870000-0x0000000075020000-memory.dmp

    Filesize

    7.7MB

  • memory/4380-8-0x000000007487E000-0x000000007487F000-memory.dmp

    Filesize

    4KB

  • memory/4380-7-0x00000000050C0000-0x00000000050DC000-memory.dmp

    Filesize

    112KB

  • memory/4380-6-0x0000000004F20000-0x0000000004FBC000-memory.dmp

    Filesize

    624KB

  • memory/4380-4-0x0000000004C80000-0x0000000004C8A000-memory.dmp

    Filesize

    40KB

  • memory/4380-3-0x0000000004BD0000-0x0000000004C62000-memory.dmp

    Filesize

    584KB