Analysis

  • max time kernel
    106s
  • max time network
    203s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-11-2024 19:09

General

  • Target

    Factura nºB-2542.exe

  • Size

    756KB

  • MD5

    b9e133e3f5e083f026c072086b882fcb

  • SHA1

    a731da15a426dd88896925bf24d63326a4c4a111

  • SHA256

    8a200d76ee514afb1f98399c12bdd0f03fd9f75cbbaff97c67085c6eacbc7ea2

  • SHA512

    300ad4a6a2d53a16d0b946fe2ae1485ac9f45537b0faa394126d304a5b749f7869b416ef56b9361f03546de2bb0962955968191e0ce777a3526de0454bd808b9

  • SSDEEP

    12288:Y2+nSPz5ZA/EME8j5i5jgRufqrr/raUO86cO2jjAQSEcN/rHFu4:ioz5W/EJHj0EGjSEcu4

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
  • 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Factura nºB-2542.exe
    "C:\Users\Admin\AppData\Local\Temp\Factura nºB-2542.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2444
    • C:\Users\Admin\AppData\Local\Temp\Factura nºB-2542.exe
      "C:\Users\Admin\AppData\Local\Temp\Factura nºB-2542.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:4428

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2444-8-0x00000000054E0000-0x00000000054E8000-memory.dmp

    Filesize

    32KB

  • memory/2444-4-0x0000000005220000-0x000000000522A000-memory.dmp

    Filesize

    40KB

  • memory/2444-0-0x0000000074C5E000-0x0000000074C5F000-memory.dmp

    Filesize

    4KB

  • memory/2444-3-0x00000000052A0000-0x0000000005332000-memory.dmp

    Filesize

    584KB

  • memory/2444-13-0x0000000074C50000-0x0000000075400000-memory.dmp

    Filesize

    7.7MB

  • memory/2444-5-0x0000000074C50000-0x0000000075400000-memory.dmp

    Filesize

    7.7MB

  • memory/2444-6-0x0000000005430000-0x00000000054A8000-memory.dmp

    Filesize

    480KB

  • memory/2444-12-0x0000000074C5E000-0x0000000074C5F000-memory.dmp

    Filesize

    4KB

  • memory/2444-2-0x00000000057B0000-0x0000000005D54000-memory.dmp

    Filesize

    5.6MB

  • memory/2444-1-0x0000000000780000-0x0000000000844000-memory.dmp

    Filesize

    784KB

  • memory/2444-7-0x00000000055E0000-0x000000000567C000-memory.dmp

    Filesize

    624KB

  • memory/4428-11-0x0000000074C50000-0x0000000075400000-memory.dmp

    Filesize

    7.7MB

  • memory/4428-10-0x0000000074C50000-0x0000000075400000-memory.dmp

    Filesize

    7.7MB

  • memory/4428-9-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/4428-14-0x0000000074C50000-0x0000000075400000-memory.dmp

    Filesize

    7.7MB

  • memory/4428-15-0x0000000006470000-0x0000000006632000-memory.dmp

    Filesize

    1.8MB

  • memory/4428-16-0x0000000006300000-0x0000000006350000-memory.dmp

    Filesize

    320KB