Analysis

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

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-08-2024 03:39

General

  • Target

    Setup.exe

  • Size

    8.5MB

  • MD5

    98169506fec94c2b12ba9930ad704515

  • SHA1

    bce662a9fb94551f648ba2d7e29659957fd6a428

  • SHA256

    9b8a5b0a45adf843e24214b46c285e44e73bc6eaf9e2a3b2c14a6d93ae541363

  • SHA512

    7f4f7ac2326a1a8b7afc72822dae328753578eb0a4ffcec5adb4e4fb0c49703070f71e7411df221ee9f44d6b43a0a94921fe530877c5d5e71640b807e96def30

  • SSDEEP

    196608:vdoUox8PFOegKz+qE1cnuyHgv3eZaOxqeXY4K:vC0O9m7EWEvbOxqetK

Malware Config

Extracted

Family

lumma

C2

https://calcuatllitwop.shop/api

https://locatedblsoqp.shop/api

Signatures

  • Banload

    Banload variants download malicious files, then install and execute the files.

  • Lumma Stealer, LummaC

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

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Event Triggered Execution: Component Object Model Hijacking 1 TTPs

    Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

  • Suspicious use of SetThreadContext 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Program crash 3 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

  • Modifies registry class 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Setup.exe
    "C:\Users\Admin\AppData\Local\Temp\Setup.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Suspicious use of SetThreadContext
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:3608
    • C:\Users\Admin\AppData\Roaming\ibv1\PMBCYKKILWJUBYU\StrCmp.exe
      C:\Users\Admin\AppData\Roaming\ibv1\PMBCYKKILWJUBYU\StrCmp.exe
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:2620
    • C:\Windows\SysWOW64\more.com
      C:\Windows\SysWOW64\more.com
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:4268
      • C:\Windows\SysWOW64\SearchIndexer.exe
        C:\Windows\SysWOW64\SearchIndexer.exe
        3⤵
        • System Location Discovery: System Language Discovery
        PID:3892
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3892 -s 1232
          4⤵
          • Program crash
          PID:4228
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3892 -s 1240
          4⤵
          • Program crash
          PID:3068
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3892 -s 1240
          4⤵
          • Program crash
          PID:1776
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 3892 -ip 3892
    1⤵
      PID:1444
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 3892 -ip 3892
      1⤵
        PID:3516
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 3892 -ip 3892
        1⤵
          PID:3824

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\302a7658

          Filesize

          1.1MB

          MD5

          7cba01badc8b9c24965c24f860a3fbf1

          SHA1

          82597cc5083c257d8e009f4543719a0f7188b22c

          SHA256

          ca1dd07a239f5f1dd6b45dcf6585ef3406522884c7e4e0da0aa540bb2ecacdc2

          SHA512

          c760ba6f10de509724e61c1de790c684348712f6a38e938ced8a9e351131800078c6e56e2601cd925ec079ce4aa14fbd38a7fdf4bbb92bd1f1eb21289fab73db

        • C:\Users\Admin\AppData\Roaming\ibv1\PMBCYKKILWJUBYU\StrCmp.exe

          Filesize

          47KB

          MD5

          916d7425a559aaa77f640710a65f9182

          SHA1

          23d25052aef9ba71ddeef7cfa86ee43d5ba1ea13

          SHA256

          118de01fb498e81eab4ade980a621af43b52265a9fcbae5dedc492cdf8889f35

          SHA512

          d0c260a0347441b4e263da52feb43412df217c207eba594d59c10ee36e47e1a098b82ce633851c16096b22f4a4a6f8282bdd23d149e337439fe63a77ec7343bc

        • memory/3608-17-0x0000000000400000-0x0000000001CF7000-memory.dmp

          Filesize

          25.0MB

        • memory/3608-16-0x0000000000400000-0x0000000001CF7000-memory.dmp

          Filesize

          25.0MB

        • memory/3608-43-0x00007FFFDC010000-0x00007FFFDC182000-memory.dmp

          Filesize

          1.4MB

        • memory/3608-15-0x0000000000400000-0x0000000001CF7000-memory.dmp

          Filesize

          25.0MB

        • memory/3608-0-0x0000000004030000-0x0000000004218000-memory.dmp

          Filesize

          1.9MB

        • memory/3608-19-0x0000000000400000-0x0000000001CF7000-memory.dmp

          Filesize

          25.0MB

        • memory/3608-20-0x00007FFFDC010000-0x00007FFFDC182000-memory.dmp

          Filesize

          1.4MB

        • memory/3608-35-0x00007FFFDC010000-0x00007FFFDC182000-memory.dmp

          Filesize

          1.4MB

        • memory/3608-10-0x0000000000400000-0x0000000001CF7000-memory.dmp

          Filesize

          25.0MB

        • memory/3608-36-0x00007FFFDC029000-0x00007FFFDC02A000-memory.dmp

          Filesize

          4KB

        • memory/3608-12-0x0000000000400000-0x0000000001CF7000-memory.dmp

          Filesize

          25.0MB

        • memory/3608-14-0x0000000000400000-0x0000000001CF7000-memory.dmp

          Filesize

          25.0MB

        • memory/3608-37-0x00007FFFDC010000-0x00007FFFDC182000-memory.dmp

          Filesize

          1.4MB

        • memory/3892-53-0x00007FFFFA250000-0x00007FFFFA445000-memory.dmp

          Filesize

          2.0MB

        • memory/3892-55-0x0000000000470000-0x00000000004DC000-memory.dmp

          Filesize

          432KB

        • memory/3892-56-0x0000000000470000-0x00000000004DC000-memory.dmp

          Filesize

          432KB

        • memory/4268-47-0x00007FFFFA250000-0x00007FFFFA445000-memory.dmp

          Filesize

          2.0MB

        • memory/4268-49-0x0000000074F8E000-0x0000000074F90000-memory.dmp

          Filesize

          8KB

        • memory/4268-48-0x0000000074F80000-0x00000000750FB000-memory.dmp

          Filesize

          1.5MB

        • memory/4268-50-0x0000000074F80000-0x00000000750FB000-memory.dmp

          Filesize

          1.5MB

        • memory/4268-52-0x0000000074F80000-0x00000000750FB000-memory.dmp

          Filesize

          1.5MB

        • memory/4268-54-0x0000000074F8E000-0x0000000074F90000-memory.dmp

          Filesize

          8KB