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Analysis

  • max time kernel
    121s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    22/01/2025, 14:28

General

  • Target

    CsNyImE.exe

  • Size

    404KB

  • MD5

    c9c7d2de539b4b1c93776286a9d064da

  • SHA1

    2c40996830841153ecd76c1fba2d64e39c7321e9

  • SHA256

    fd6bd9a37677899ab77945288508f6946c0ec955b7cdc2bc106a0b6d5de67c66

  • SHA512

    6c1c6536c62a9dd4c5bd4074a27e3cf45a58acbd92b4cd466c30ab95d15b404970c123a993243623d2280f4a711fe64cf33af7e53cdb501ff95073f7e22c617a

  • SSDEEP

    12288:oQXNUkhvrUrv9ysegjTkH9O+OYJ0Lr8zspre4J:o5khwrvpeaTkdjOxr8zIrRJ

Score
10/10

Malware Config

Extracted

Family

lumma

C2

https://impolitewearr.biz/api

https://toppyneedus.biz/api

https://lightdeerysua.biz/api

https://suggestyuoz.biz/api

https://hoursuhouy.biz/api

https://mixedrecipew.biz/api

https://affordtempyo.biz/api

https://pleasedcfrown.biz/api

Signatures

  • Lumma Stealer, LummaC

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

  • Lumma family
  • Suspicious use of SetThreadContext 1 IoCs
  • Program crash 1 IoCs
  • 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.

  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\CsNyImE.exe
    "C:\Users\Admin\AppData\Local\Temp\CsNyImE.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1836
    • C:\Users\Admin\AppData\Local\Temp\CsNyImE.exe
      "C:\Users\Admin\AppData\Local\Temp\CsNyImE.exe"
      2⤵
        PID:1908
      • C:\Users\Admin\AppData\Local\Temp\CsNyImE.exe
        "C:\Users\Admin\AppData\Local\Temp\CsNyImE.exe"
        2⤵
        • System Location Discovery: System Language Discovery
        • Modifies system certificate store
        PID:2076
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1836 -s 524
        2⤵
        • Program crash
        PID:1912

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\CabD03C.tmp

      Filesize

      70KB

      MD5

      49aebf8cbd62d92ac215b2923fb1b9f5

      SHA1

      1723be06719828dda65ad804298d0431f6aff976

      SHA256

      b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

      SHA512

      bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

    • C:\Users\Admin\AppData\Local\Temp\TarD05E.tmp

      Filesize

      181KB

      MD5

      4ea6026cf93ec6338144661bf1202cd1

      SHA1

      a1dec9044f750ad887935a01430bf49322fbdcb7

      SHA256

      8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

      SHA512

      6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

    • memory/1836-0-0x000000007453E000-0x000000007453F000-memory.dmp

      Filesize

      4KB

    • memory/1836-1-0x0000000000E00000-0x0000000000E68000-memory.dmp

      Filesize

      416KB

    • memory/1836-49-0x0000000074530000-0x0000000074C1E000-memory.dmp

      Filesize

      6.9MB

    • memory/1836-13-0x0000000074530000-0x0000000074C1E000-memory.dmp

      Filesize

      6.9MB

    • memory/2076-7-0x0000000000400000-0x000000000045B000-memory.dmp

      Filesize

      364KB

    • memory/2076-6-0x0000000000400000-0x000000000045B000-memory.dmp

      Filesize

      364KB

    • memory/2076-5-0x0000000000400000-0x000000000045B000-memory.dmp

      Filesize

      364KB

    • memory/2076-12-0x0000000000400000-0x000000000045B000-memory.dmp

      Filesize

      364KB

    • memory/2076-8-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

      Filesize

      4KB

    • memory/2076-14-0x0000000000400000-0x000000000045B000-memory.dmp

      Filesize

      364KB

    • memory/2076-10-0x0000000000400000-0x000000000045B000-memory.dmp

      Filesize

      364KB

    • memory/2076-4-0x0000000000400000-0x000000000045B000-memory.dmp

      Filesize

      364KB

    • memory/2076-3-0x0000000000400000-0x000000000045B000-memory.dmp

      Filesize

      364KB