General

  • Target

    Bootstrapper.zip

  • Size

    5.5MB

  • Sample

    250122-27jzjazrbz

  • MD5

    9ba94ac44294258328b5b23e6fbcaf4a

  • SHA1

    3ef50da71c5800f02680733b184bb11bb0ca309b

  • SHA256

    a9e76b770fb8a61f793a61ca6701e1f76ea95282d5a3647d8dfccf1b560f401a

  • SHA512

    52e3118e8e40d621275d0ce3157138bb0e9a4d56c1c570666930de60e46e8050af8e0c377aea2e5ccee2ff78c427576bd4954226a0f800eac6cabbaa70f267ce

  • SSDEEP

    98304:HUxBxVYLNchCiExF8pIV/hIy3D25GmoQ5ReIpL6Xh+SC+rnM/BnspjhlvkHeBA:0/biriUei/+boQ5EIpLoznI/tsp1lsHr

Malware Config

Extracted

Family

lumma

C2

https://undesirabkel.click/api

Targets

    • Target

      Luna/Bootstrapper.exe

    • Size

      9.4MB

    • MD5

      f2a6133b7f38fc49f792ae799d1b4750

    • SHA1

      6bef46ddde325f45a0e9ff123112c96bbd47c795

    • SHA256

      37bde6655e1272e159b9c2e3a7eee3f4e9a837c0f04240645d3991d112287f8d

    • SHA512

      f9611bed83b4bce1841868880a42dacb6b8f7e8859be1d85b3c8d3a365a0244566cbfb12294c7b2c82b15d6c0e47095d8246a95d522c3a064a0d8511b2411254

    • SSDEEP

      98304:UHuETr54/xXEPmZM8l2EKSxOyFOiC0YYWtS7tkk6Q9SFxVLUeRF:2pIxXoSTlzdFfCtlIZ/9iZX

    • Lumma Stealer, LummaC

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

    • Lumma family

    • Downloads MZ/PE file

    • Event Triggered Execution: Image File Execution Options Injection

    • Checks computer location settings

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

    • Event Triggered Execution: Component Object Model Hijacking

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Checks installed software on the system

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

    • Checks whether UAC is enabled

    • Legitimate hosting services abused for malware hosting/C2

    • Network Share Discovery

      Attempt to gather information on host network.

    • Checks system information in the registry

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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks