Analysis

  • max time kernel
    290s
  • 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
    29/10/2024, 14:42

General

  • Target

    Factura-allianz.exe

  • Size

    965KB

  • MD5

    3caed96490f234e7ce7b824b191f76cf

  • SHA1

    d97c6180e3b3fb3e450ad9d7c326a4f814e449a1

  • SHA256

    faba4b287980fe368cb0c76b142e26c3e24071b7ce4e876b9ca80bcc4f39e8d4

  • SHA512

    01a529a0aa3d55cfbd7f2043953e2c21aed340352e93a2fb6c664352fab63ee9449bc95e240f3c73d553c5a50c088fa999acae91bfef05f470d97805eb56bf9d

  • SSDEEP

    12288:xkjn2m4wIWmAmUwd9WsZ4+hzj4VQ7f0tzKAFBD9wMfOkPvFyBzeav4U4PKp3B:ynE9WDwd9CGct2YBD9w254CQ+K1B

Malware Config

Extracted

Family

vipkeylogger

C2

https://api.telegram.org/bot7773291387:AAFW0tyP5tccfsSYvPespY2G7aDGr5DPwdk/sendMessage?chat_id=7981072606

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
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 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
  • Drops file in Windows directory 2 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\Factura-allianz.exe
    "C:\Users\Admin\AppData\Local\Temp\Factura-allianz.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:4804
    • C:\Users\Admin\AppData\Local\Temp\Factura-allianz.exe
      "C:\Users\Admin\AppData\Local\Temp\Factura-allianz.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • 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:5076

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\nso7763.tmp\System.dll

    Filesize

    11KB

    MD5

    fc90dfb694d0e17b013d6f818bce41b0

    SHA1

    3243969886d640af3bfa442728b9f0dff9d5f5b0

    SHA256

    7fe77ca13121a113c59630a3dba0c8aaa6372e8082393274da8f8608c4ce4528

    SHA512

    324f13aa7a33c6408e2a57c3484d1691ecee7c3c1366de2bb8978c8dc66b18425d8cab5a32d1702c13c43703e36148a022263de7166afdce141da2b01169f1c6

  • memory/4804-14-0x0000000077241000-0x0000000077361000-memory.dmp

    Filesize

    1.1MB

  • memory/4804-15-0x0000000010004000-0x0000000010005000-memory.dmp

    Filesize

    4KB

  • memory/5076-16-0x0000000077241000-0x0000000077361000-memory.dmp

    Filesize

    1.1MB

  • memory/5076-17-0x00000000772C8000-0x00000000772C9000-memory.dmp

    Filesize

    4KB

  • memory/5076-18-0x00000000772E5000-0x00000000772E6000-memory.dmp

    Filesize

    4KB

  • memory/5076-31-0x00000000004A0000-0x00000000016F4000-memory.dmp

    Filesize

    18.3MB

  • memory/5076-32-0x0000000077241000-0x0000000077361000-memory.dmp

    Filesize

    1.1MB

  • memory/5076-33-0x000000007213E000-0x000000007213F000-memory.dmp

    Filesize

    4KB

  • memory/5076-34-0x00000000004A0000-0x00000000004E8000-memory.dmp

    Filesize

    288KB

  • memory/5076-35-0x0000000038490000-0x0000000038A34000-memory.dmp

    Filesize

    5.6MB

  • memory/5076-36-0x00000000361B0000-0x000000003624C000-memory.dmp

    Filesize

    624KB

  • memory/5076-38-0x0000000072130000-0x00000000728E0000-memory.dmp

    Filesize

    7.7MB

  • memory/5076-39-0x000000007213E000-0x000000007213F000-memory.dmp

    Filesize

    4KB

  • memory/5076-41-0x0000000072130000-0x00000000728E0000-memory.dmp

    Filesize

    7.7MB

  • memory/5076-42-0x0000000038EC0000-0x0000000039082000-memory.dmp

    Filesize

    1.8MB

  • memory/5076-43-0x0000000039090000-0x00000000390E0000-memory.dmp

    Filesize

    320KB

  • memory/5076-45-0x0000000039130000-0x00000000391C2000-memory.dmp

    Filesize

    584KB

  • memory/5076-46-0x0000000039200000-0x000000003920A000-memory.dmp

    Filesize

    40KB