Analysis

  • max time kernel
    91s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    01-10-2024 07:58

General

  • Target

    invoice.exe

  • Size

    777KB

  • MD5

    69f5ec778e467c7d87f15b201c893816

  • SHA1

    4e2b63cce411847e95177765064b3fc03463590b

  • SHA256

    a433aa981a5cbfd5fae678c523b088d034f61f57dcb61232fbaba73657867b36

  • SHA512

    8c31ed6c55abfb8d4e5ab9f8b39d05571a583322385a7fc28427f48326ec5e43e9c66c99748e0c53cbc98c904175ffa82aac5d539121c095dda06355b6b7890b

  • SSDEEP

    24576:vOGaAeBqAiwCZDOwl3UYfWFEBftBW2Zye:4LgAiTZDhlRWFEBVw2ZF

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.

  • 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.

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\invoice.exe
    "C:\Users\Admin\AppData\Local\Temp\invoice.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2216
    • C:\Users\Admin\AppData\Local\Temp\invoice.exe
      "C:\Users\Admin\AppData\Local\Temp\invoice.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:2660

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2216-0-0x000000007421E000-0x000000007421F000-memory.dmp

    Filesize

    4KB

  • memory/2216-1-0x0000000000ED0000-0x0000000000F96000-memory.dmp

    Filesize

    792KB

  • memory/2216-2-0x0000000074210000-0x00000000748FE000-memory.dmp

    Filesize

    6.9MB

  • memory/2216-3-0x0000000004E50000-0x0000000004F08000-memory.dmp

    Filesize

    736KB

  • memory/2216-4-0x0000000000540000-0x000000000055E000-memory.dmp

    Filesize

    120KB

  • memory/2216-5-0x000000007421E000-0x000000007421F000-memory.dmp

    Filesize

    4KB

  • memory/2216-6-0x0000000074210000-0x00000000748FE000-memory.dmp

    Filesize

    6.9MB

  • memory/2216-7-0x0000000000400000-0x000000000048C000-memory.dmp

    Filesize

    560KB

  • memory/2216-24-0x0000000074210000-0x00000000748FE000-memory.dmp

    Filesize

    6.9MB

  • memory/2660-22-0x0000000000400000-0x000000000044A000-memory.dmp

    Filesize

    296KB

  • memory/2660-18-0x0000000000400000-0x000000000044A000-memory.dmp

    Filesize

    296KB

  • memory/2660-20-0x0000000000400000-0x000000000044A000-memory.dmp

    Filesize

    296KB

  • memory/2660-16-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2660-14-0x0000000000400000-0x000000000044A000-memory.dmp

    Filesize

    296KB

  • memory/2660-12-0x0000000000400000-0x000000000044A000-memory.dmp

    Filesize

    296KB

  • memory/2660-10-0x0000000000400000-0x000000000044A000-memory.dmp

    Filesize

    296KB

  • memory/2660-23-0x0000000074210000-0x00000000748FE000-memory.dmp

    Filesize

    6.9MB

  • memory/2660-8-0x0000000000400000-0x000000000044A000-memory.dmp

    Filesize

    296KB

  • memory/2660-25-0x0000000074210000-0x00000000748FE000-memory.dmp

    Filesize

    6.9MB

  • memory/2660-26-0x0000000074210000-0x00000000748FE000-memory.dmp

    Filesize

    6.9MB

  • memory/2660-27-0x0000000074210000-0x00000000748FE000-memory.dmp

    Filesize

    6.9MB