Analysis

  • max time kernel
    121s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    28/11/2024, 02:51

General

  • Target

    66fe3bef55fac776f9d73e3231b52482d93399b0f2d0f78df18232cbe42740b3.exe

  • Size

    1.8MB

  • MD5

    4df32bf57cee1f78a032410c1e9efcdf

  • SHA1

    19a3b33484904a65fbe85fab2a773fab7b7e2929

  • SHA256

    66fe3bef55fac776f9d73e3231b52482d93399b0f2d0f78df18232cbe42740b3

  • SHA512

    f0a828f78584be34f6f3bae801416697488861cf48f062f6d23beb663d6054e6fa16034671892747b6a9355af1af02e40d7009cee823ed0bdbb776e6a7510e07

  • SSDEEP

    49152:PwWOUlJitEtZnGs8cuYpjLJhWyUUtGZLd/sfaOJ:ofUlJitEtFZ8AJhx/kvsfvJ

Malware Config

Extracted

Family

lumma

C2

https://powerful-avoids.sbs

https://motion-treesz.sbs

https://disobey-curly.sbs

https://leg-sate-boat.sbs

https://story-tense-faz.sbs

https://blade-govern.sbs

https://occupy-blushi.sbs

https://frogs-severz.sbs

https://property-imper.sbs

Signatures

  • Lumma Stealer, LummaC

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

  • Lumma family
  • 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.

  • Identifies Wine through registry keys 2 TTPs 1 IoCs

    Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

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

  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\66fe3bef55fac776f9d73e3231b52482d93399b0f2d0f78df18232cbe42740b3.exe
    "C:\Users\Admin\AppData\Local\Temp\66fe3bef55fac776f9d73e3231b52482d93399b0f2d0f78df18232cbe42740b3.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Identifies Wine through registry keys
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • System Location Discovery: System Language Discovery
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    PID:2872

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\Cab87F7.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Users\Admin\AppData\Local\Temp\Tar8819.tmp

    Filesize

    181KB

    MD5

    4ea6026cf93ec6338144661bf1202cd1

    SHA1

    a1dec9044f750ad887935a01430bf49322fbdcb7

    SHA256

    8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

    SHA512

    6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

  • memory/2872-0-0x0000000000170000-0x0000000000612000-memory.dmp

    Filesize

    4.6MB

  • memory/2872-1-0x0000000077530000-0x0000000077532000-memory.dmp

    Filesize

    8KB

  • memory/2872-2-0x0000000000171000-0x0000000000197000-memory.dmp

    Filesize

    152KB

  • memory/2872-3-0x0000000000170000-0x0000000000612000-memory.dmp

    Filesize

    4.6MB

  • memory/2872-4-0x0000000000170000-0x0000000000612000-memory.dmp

    Filesize

    4.6MB