Analysis

  • max time kernel
    141s
  • max time network
    141s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-11-2024 06:35

General

  • Target

    Snurrevoddenes.exe

  • Size

    814KB

  • MD5

    4d05eac9c30331683fe59038aba0d873

  • SHA1

    683812ee2e76037ac4cf1ad0858778fcea44bad6

  • SHA256

    be0b05580938cea205cb3e035bf9f814327b30a59ea80bae55255530519d1fcd

  • SHA512

    eb9f3cd33ee8fd311da446041450a62be3cdcae02c34fd01c2610355fa87795c77e2d0b8fc3208cbf699838f30a1160c6b1f81b20dd68c4fe2a2809ee5bae0a8

  • SSDEEP

    24576:jvYV0HT73uFB1vuQoj5RvdulhTzGB/bNlVC7t:cOzaYQmZ5FNlVg

Malware Config

Extracted

Family

vipkeylogger

C2

https://api.telegram.org/bot8177184706:AAEJ0_bPTtjIc-PnjNdYNmARZ2fvBD17ZJI/sendMessage?chat_id=6198188190

Signatures

  • VIPKeylogger

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

  • Vipkeylogger family
  • Loads dropped DLL 1 IoCs
  • 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
  • Adds Run key to start application 2 TTPs 1 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 NtCreateThreadExHideFromDebugger 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • 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 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 behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Snurrevoddenes.exe
    "C:\Users\Admin\AppData\Local\Temp\Snurrevoddenes.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:1848
    • C:\Users\Admin\AppData\Local\Temp\Snurrevoddenes.exe
      "C:\Users\Admin\AppData\Local\Temp\Snurrevoddenes.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • Suspicious use of NtCreateThreadExHideFromDebugger
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1996

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\nskAD68.tmp\System.dll

    Filesize

    11KB

    MD5

    fc90dfb694d0e17b013d6f818bce41b0

    SHA1

    3243969886d640af3bfa442728b9f0dff9d5f5b0

    SHA256

    7fe77ca13121a113c59630a3dba0c8aaa6372e8082393274da8f8608c4ce4528

    SHA512

    324f13aa7a33c6408e2a57c3484d1691ecee7c3c1366de2bb8978c8dc66b18425d8cab5a32d1702c13c43703e36148a022263de7166afdce141da2b01169f1c6

  • memory/1848-12-0x0000000077121000-0x0000000077241000-memory.dmp

    Filesize

    1.1MB

  • memory/1848-14-0x0000000010004000-0x0000000010005000-memory.dmp

    Filesize

    4KB

  • memory/1848-13-0x0000000077121000-0x0000000077241000-memory.dmp

    Filesize

    1.1MB

  • memory/1996-15-0x00000000771A8000-0x00000000771A9000-memory.dmp

    Filesize

    4KB

  • memory/1996-16-0x0000000077121000-0x0000000077241000-memory.dmp

    Filesize

    1.1MB

  • memory/1996-18-0x0000000000480000-0x00000000016D4000-memory.dmp

    Filesize

    18.3MB

  • memory/1996-19-0x0000000000480000-0x00000000016D4000-memory.dmp

    Filesize

    18.3MB

  • memory/1996-20-0x00000000721EE000-0x00000000721EF000-memory.dmp

    Filesize

    4KB

  • memory/1996-21-0x0000000000480000-0x00000000004CA000-memory.dmp

    Filesize

    296KB

  • memory/1996-22-0x00000000381A0000-0x0000000038744000-memory.dmp

    Filesize

    5.6MB

  • memory/1996-23-0x0000000038790000-0x000000003882C000-memory.dmp

    Filesize

    624KB

  • memory/1996-24-0x00000000721E0000-0x0000000072990000-memory.dmp

    Filesize

    7.7MB

  • memory/1996-25-0x0000000038FF0000-0x00000000391B2000-memory.dmp

    Filesize

    1.8MB

  • memory/1996-26-0x00000000391E0000-0x0000000039230000-memory.dmp

    Filesize

    320KB

  • memory/1996-27-0x00000000392C0000-0x00000000397EC000-memory.dmp

    Filesize

    5.2MB

  • memory/1996-29-0x00000000721EE000-0x00000000721EF000-memory.dmp

    Filesize

    4KB

  • memory/1996-30-0x00000000721E0000-0x0000000072990000-memory.dmp

    Filesize

    7.7MB

  • memory/1996-32-0x0000000039840000-0x00000000398D2000-memory.dmp

    Filesize

    584KB

  • memory/1996-34-0x0000000039930000-0x000000003993A000-memory.dmp

    Filesize

    40KB