Analysis

  • max time kernel
    30s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-09-2024 02:19

General

  • Target

    b832829177dcfb2f224062fdf796ffdce054c66ac391d4a2efdec7e06aeb69ee.exe

  • Size

    403KB

  • MD5

    80729909b073a23f2caf883d9b9dce98

  • SHA1

    cf621df3f09b1103e247e1292e6c9d4894e90d92

  • SHA256

    b832829177dcfb2f224062fdf796ffdce054c66ac391d4a2efdec7e06aeb69ee

  • SHA512

    e197b71e9b91aa83f6ff0ca454a8ea72c66043449901595613d4d6ad8ac0e007e7ed10c6b1a428692eb6d2a29fd114b0afcfe7a678b6fb11b475ea6fb5ce0b05

  • SSDEEP

    6144:E9rIJUWYO5Mge78Vh5bbBUey+J8f8IztggcO6T4++1dJBMD8tCQSexEO:EiJUWR5MgeChxBUew0IztgO1XJiDYhEO

Malware Config

Extracted

Family

vidar

Version

11

Botnet

3a15237aa92dcd8ccca447211fb5fc2a

C2

https://steamcommunity.com/profiles/76561199780418869

https://t.me/ae5ed

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:130.0) Gecko/20100101 Firefox/130.0

Extracted

Family

lumma

C2

https://drawzhotdog.shop/api

https://gutterydhowi.shop/api

https://ghostreedmnu.shop/api

https://offensivedzvju.shop/api

https://vozmeatillu.shop/api

https://fragnantbui.shop/api

https://stogeneratmns.shop/api

https://reinforcenh.shop/api

https://performenj.shop/api

Signatures

  • Detect Vidar Stealer 13 IoCs
  • Lumma Stealer, LummaC

    Lumma or LummaC is an infostealer written in C++ first seen in August 2022.

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Downloads MZ/PE file
  • Checks computer location settings 2 TTPs 3 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 64 IoCs
  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 2 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Unsecured Credentials: Credentials In Files 1 TTPs

    Steal credentials from unsecured files.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • 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 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 7 IoCs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 31 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b832829177dcfb2f224062fdf796ffdce054c66ac391d4a2efdec7e06aeb69ee.exe
    "C:\Users\Admin\AppData\Local\Temp\b832829177dcfb2f224062fdf796ffdce054c66ac391d4a2efdec7e06aeb69ee.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:5100
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
      • Checks computer location settings
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3520
      • C:\ProgramData\KJEHDHIEGI.exe
        "C:\ProgramData\KJEHDHIEGI.exe"
        3⤵
        • Checks computer location settings
        • Executes dropped EXE
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4472
        • C:\Users\Admin\AppData\Local\Temp\Malewmf\MFDBG.exe
          "C:\Users\Admin\AppData\Local\Temp\Malewmf\MFDBG.exe"
          4⤵
          • Checks computer location settings
          • Drops startup file
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:800
          • C:\Users\Admin\AppData\Local\Temp\Malewmf\FDWDZ.exe
            "C:\Users\Admin\AppData\Local\Temp\Malewmf\FDWDZ.exe" --checker
            5⤵
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            • Suspicious use of AdjustPrivilegeToken
            PID:1636
      • C:\ProgramData\FHJDBKJKFI.exe
        "C:\ProgramData\FHJDBKJKFI.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2168
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:3832
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\KFCAFIIDHIDG" & exit
        3⤵
          PID:4892
          • C:\Windows\SysWOW64\timeout.exe
            timeout /t 10
            4⤵
            • Delays execution with timeout.exe
            PID:832

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\ProgramData\FHJDBKJKFI.exe

      Filesize

      368KB

      MD5

      0cee1d66332dec523210f62e479284b9

      SHA1

      33f950916e13a6ec654c52160ee47e88c64a5724

      SHA256

      0a6a258bfdb9b1947f2945b44e274ff3f06a7c5c733ff83c2a71c5f911fa9cc0

      SHA512

      603aa4834c6d3a9f3b6b1629eeb2108cecfd7192110f0cf948f2971957a9231ad9d405d8424e3a41b32a8ff415d8f84e55afdec38bf996703093084162d11972

    • C:\ProgramData\KJEHDHIEGI.exe

      Filesize

      25KB

      MD5

      168087c84c5ff3664e5e2f4eec18d7dd

      SHA1

      639e9e87103f576617ed08c50910ca92fe5c8c5b

      SHA256

      2a7cdb79045658b9c02ebbb159e5b3680d7d6d832dbd757572f7d202c3fa935d

      SHA512

      89491261e1234f917964566def4b1a50505ba4c2eb90d14c19e2130d78fe65cd61c4bba685909109c7088b35e7fd48f6311ace7a0dd8c703a6d1b1d23d1a54bb

    • C:\ProgramData\mozglue.dll

      Filesize

      593KB

      MD5

      c8fd9be83bc728cc04beffafc2907fe9

      SHA1

      95ab9f701e0024cedfbd312bcfe4e726744c4f2e

      SHA256

      ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

      SHA512

      fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

    • C:\ProgramData\nss3.dll

      Filesize

      2.0MB

      MD5

      1cc453cdf74f31e4d913ff9c10acdde2

      SHA1

      6e85eae544d6e965f15fa5c39700fa7202f3aafe

      SHA256

      ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

      SHA512

      dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\MFDBG_c52f1d1e3f4245ada9fe79c6424056c5.lnk

      Filesize

      1KB

      MD5

      b657941a256fed2a25daece8665d4485

      SHA1

      0927bda8cc8873736664496a950e2bb68523a430

      SHA256

      75c783de0e184011b69104bd9d02c24f886d50b8371c8c6073eb2c646bec4ace

      SHA512

      4b20f5b3bd7bd3e1ee6826a692433103d6f6032bcc4e784a7b383ace1958538798a13ac1eae5cbfc6642fdca99ad78924ff14b8728d054e2d8537bc7084968b3

    • memory/2168-146-0x00000000005C0000-0x0000000000620000-memory.dmp

      Filesize

      384KB

    • memory/3520-19-0x0000000000400000-0x0000000000676000-memory.dmp

      Filesize

      2.5MB

    • memory/3520-6-0x0000000000400000-0x0000000000676000-memory.dmp

      Filesize

      2.5MB

    • memory/3520-20-0x0000000022600000-0x000000002285F000-memory.dmp

      Filesize

      2.4MB

    • memory/3520-35-0x0000000000400000-0x0000000000676000-memory.dmp

      Filesize

      2.5MB

    • memory/3520-36-0x0000000000400000-0x0000000000676000-memory.dmp

      Filesize

      2.5MB

    • memory/3520-52-0x0000000000400000-0x0000000000676000-memory.dmp

      Filesize

      2.5MB

    • memory/3520-53-0x0000000000400000-0x0000000000676000-memory.dmp

      Filesize

      2.5MB

    • memory/3520-3-0x0000000000400000-0x0000000000676000-memory.dmp

      Filesize

      2.5MB

    • memory/3520-18-0x0000000000400000-0x0000000000676000-memory.dmp

      Filesize

      2.5MB

    • memory/3520-8-0x0000000000400000-0x0000000000676000-memory.dmp

      Filesize

      2.5MB

    • memory/3520-78-0x0000000000400000-0x0000000000676000-memory.dmp

      Filesize

      2.5MB

    • memory/3520-79-0x0000000000400000-0x0000000000676000-memory.dmp

      Filesize

      2.5MB

    • memory/3520-86-0x0000000000400000-0x0000000000676000-memory.dmp

      Filesize

      2.5MB

    • memory/3520-87-0x0000000000400000-0x0000000000676000-memory.dmp

      Filesize

      2.5MB

    • memory/3832-149-0x0000000000400000-0x0000000000462000-memory.dmp

      Filesize

      392KB

    • memory/3832-153-0x0000000000400000-0x0000000000462000-memory.dmp

      Filesize

      392KB

    • memory/3832-151-0x0000000000400000-0x0000000000462000-memory.dmp

      Filesize

      392KB

    • memory/4472-101-0x000000007205E000-0x000000007205F000-memory.dmp

      Filesize

      4KB

    • memory/4472-102-0x0000000000C80000-0x0000000000C8C000-memory.dmp

      Filesize

      48KB

    • memory/4472-105-0x0000000072050000-0x0000000072800000-memory.dmp

      Filesize

      7.7MB

    • memory/4472-122-0x0000000072050000-0x0000000072800000-memory.dmp

      Filesize

      7.7MB

    • memory/5100-11-0x0000000074770000-0x0000000074F20000-memory.dmp

      Filesize

      7.7MB

    • memory/5100-0-0x000000007477E000-0x000000007477F000-memory.dmp

      Filesize

      4KB

    • memory/5100-60-0x0000000074770000-0x0000000074F20000-memory.dmp

      Filesize

      7.7MB

    • memory/5100-1-0x0000000000200000-0x0000000000268000-memory.dmp

      Filesize

      416KB