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Analysis

  • max time kernel
    92s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/01/2025, 16:49

General

  • Target

    Release-x64.zip

  • Size

    38.9MB

  • MD5

    36f9005784b19cc8f7448390e997a2c1

  • SHA1

    140fefa1d80a828795c03f52ad28002b5d9635d2

  • SHA256

    f6a6bada54ddce2bc211976e7dfe05c89f4780eab1b992b409dacc7c9b8755b7

  • SHA512

    131d1cbb777c1e428b26b870a9f5626f3ed76c97fb9ef9cfb22fb8204da510336e065e71c18a47b3cc31495082ffcab7a37be88a4922dd2956bb73ef1eb6d76c

  • SSDEEP

    786432:v7mya0tlAZkF2k3ya5OzccWkjzuWUKorpBsdDdtd3vA5BsdDdtd3vAD5:zojZ62u56cceWUvpBsDbo5BsDbo1

Malware Config

Extracted

Family

lumma

C2

https://cloudewahsj.shop/api

https://rabidcowse.shop/api

https://noisycuttej.shop/api

https://tirepublicerj.shop/api

https://framekgirus.shop/api

https://wholersorie.shop/api

https://abruptyopsn.shop/api

https://nearycrepso.shop/api

Extracted

Family

lumma

C2

https://abruptyopsn.shop/api

https://wholersorie.shop/api

https://framekgirus.shop/api

https://tirepublicerj.shop/api

https://noisycuttej.shop/api

https://rabidcowse.shop/api

https://cloudewahsj.shop/api

Signatures

  • Lumma Stealer, LummaC

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

  • Lumma family
  • CryptOne packer 1 IoCs

    Detects CryptOne packer defined in NCC blogpost.

  • Executes dropped EXE 1 IoCs
  • Program crash 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 registry class 2 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs

Processes

  • C:\Program Files\7-Zip\7zFM.exe
    "C:\Program Files\7-Zip\7zFM.exe" "C:\Users\Admin\AppData\Local\Temp\Release-x64.zip"
    1⤵
    • Modifies registry class
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:976
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:2708
    • C:\Users\Admin\Downloads\Release\Bootstrapper.exe
      "C:\Users\Admin\Downloads\Release\Bootstrapper.exe"
      1⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:4040
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4040 -s 1276
        2⤵
        • Program crash
        PID:2132
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 4040 -ip 4040
      1⤵
        PID:1936

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Users\Admin\Downloads\Release\Bootstrapper.exe

        Filesize

        304KB

        MD5

        79f0a3279859e8b69226a57ba343b3de

        SHA1

        108593b52ac5367411ceb201c43d0dc1a8d43013

        SHA256

        87ab9777bb83462f3deebcfb858ca8ec46bf6e647961920748725ba3f9b905b5

        SHA512

        8db7cca52500465df1f13d7c557908fe7aaec8b59c204c62ba5adeab2c7a3fc9cdc255b1f3bf6b7bb619d0546551208df5fb1fa4fc9b1ba8be2ffdeec49e31fd

      • C:\Users\Admin\Downloads\Release\scripts\local

        Filesize

        18.7MB

        MD5

        88fd7dbf04bcf75123d02009aea3f7f7

        SHA1

        cecf16bdad71e54afc941179ea2b7438a04efa1d

        SHA256

        01481b9a862936fbc090bda4033f22d7ffa5a7bfe5dc32f47c7794332b34eec4

        SHA512

        2c6298b5adf91b51f0042d48e0846f5b196d52a588fd4fc577bf19ec26ad8e547382279a15f8bf131b08b0d7c140534aff25f82d5e8998818b812e72c9493917

      • memory/4040-26-0x00000000021C0000-0x00000000021EE000-memory.dmp

        Filesize

        184KB

      • memory/4040-27-0x00000000021F0000-0x000000000223D000-memory.dmp

        Filesize

        308KB

      • memory/4040-28-0x0000000000400000-0x0000000000457000-memory.dmp

        Filesize

        348KB

      • memory/4040-29-0x00000000021C0000-0x00000000021EE000-memory.dmp

        Filesize

        184KB

      • memory/4040-30-0x0000000000400000-0x0000000000457000-memory.dmp

        Filesize

        348KB

      • memory/4040-31-0x00000000021F0000-0x000000000223D000-memory.dmp

        Filesize

        308KB