Analysis

  • max time kernel
    135s
  • max time network
    195s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/08/2024, 02:08

General

  • Target

    RCRFQ-FEMS(HKL)2024024.PDF.scr

  • Size

    695KB

  • MD5

    f3094a481b9ccfb22a1cfed698b898c1

  • SHA1

    045e024f21dd5ce4b2816ab387b1581da0e3b100

  • SHA256

    6cb3801298e866cd728d92c70e20130f3149b7b7e9ab892c77f50503647380d1

  • SHA512

    1b5910c06d1089d422c7de6d32c751e898007946a51028d914cce876724221bb0e451c7acc0071196ca802659678e19809a8595fb183d56922e0ec0d4a83b3a8

  • SSDEEP

    12288:aVVxz9wxQPVSlYoNzf5sDqlGdbEHyCl9Qzq4ldie+Yu:sxz9czlYoNrTglE/Htyx+Y

Malware Config

Extracted

Family

vipkeylogger

C2

https://api.telegram.org/bot7371892501:AAE6c_q-yLsVj82ZZEmMuRlQtTm95MBjCz0/sendMessage?chat_id=6750192797

Signatures

  • VIPKeylogger

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

  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • 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 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\RCRFQ-FEMS(HKL)2024024.PDF.scr
    "C:\Users\Admin\AppData\Local\Temp\RCRFQ-FEMS(HKL)2024024.PDF.scr" /S
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4496
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.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:960

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/960-11-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/960-19-0x0000000006320000-0x0000000006370000-memory.dmp

    Filesize

    320KB

  • memory/960-18-0x0000000006490000-0x0000000006652000-memory.dmp

    Filesize

    1.8MB

  • memory/960-17-0x00000000743E0000-0x0000000074B90000-memory.dmp

    Filesize

    7.7MB

  • memory/960-16-0x00000000743E0000-0x0000000074B90000-memory.dmp

    Filesize

    7.7MB

  • memory/960-15-0x00000000743E0000-0x0000000074B90000-memory.dmp

    Filesize

    7.7MB

  • memory/960-13-0x00000000743E0000-0x0000000074B90000-memory.dmp

    Filesize

    7.7MB

  • memory/4496-4-0x00000000743E0000-0x0000000074B90000-memory.dmp

    Filesize

    7.7MB

  • memory/4496-8-0x00000000743E0000-0x0000000074B90000-memory.dmp

    Filesize

    7.7MB

  • memory/4496-9-0x0000000006750000-0x00000000067DC000-memory.dmp

    Filesize

    560KB

  • memory/4496-10-0x000000000A7C0000-0x000000000A85C000-memory.dmp

    Filesize

    624KB

  • memory/4496-7-0x00000000743EE000-0x00000000743EF000-memory.dmp

    Filesize

    4KB

  • memory/4496-6-0x0000000008240000-0x0000000008258000-memory.dmp

    Filesize

    96KB

  • memory/4496-14-0x00000000743E0000-0x0000000074B90000-memory.dmp

    Filesize

    7.7MB

  • memory/4496-5-0x0000000005720000-0x000000000572A000-memory.dmp

    Filesize

    40KB

  • memory/4496-0-0x00000000743EE000-0x00000000743EF000-memory.dmp

    Filesize

    4KB

  • memory/4496-3-0x0000000005500000-0x0000000005592000-memory.dmp

    Filesize

    584KB

  • memory/4496-2-0x0000000005A10000-0x0000000005FB4000-memory.dmp

    Filesize

    5.6MB

  • memory/4496-1-0x0000000000A50000-0x0000000000B02000-memory.dmp

    Filesize

    712KB