General

  • Target

    Sigmanly_bb6ed22605e38edeea643fc3ef43ced73ba96cc3740f8e1d4332932a36d45a41

  • Size

    6.8MB

  • Sample

    250107-zajamayrfq

  • MD5

    ec19fa1027fee164803cc127aef64199

  • SHA1

    8a1c7cd16c432a67eb9d71fe745d5ce5e4315dfd

  • SHA256

    bb6ed22605e38edeea643fc3ef43ced73ba96cc3740f8e1d4332932a36d45a41

  • SHA512

    3f11ccce6a0b870e8596e24d2b91d492c8a7d6b6e8d5a0d868a0db90d03a76f0d1c91907bfe98e95d2542deceb39c66a5ce69114d980d61e5bcff4ec1a5c4a78

  • SSDEEP

    98304:47RIWaDhDFxHWAW8+xfbZV1IucY8j8NHM3lngV++ZKHWywyfQmZ:4FItx3WhxFVgY88HM3NgV++Z2WuI+

Malware Config

Extracted

Family

lumma

C2

https://hummskitnj.buzz/api

https://cashfuzysao.buzz/api

https://appliacnesot.buzz/api

https://screwamusresz.buzz/api

https://inherineau.buzz/api

https://scentniej.buzz/api

https://rebuildeso.buzz/api

https://prisonyfork.buzz/api

Targets

    • Target

      Sigmanly_bb6ed22605e38edeea643fc3ef43ced73ba96cc3740f8e1d4332932a36d45a41

    • Size

      6.8MB

    • MD5

      ec19fa1027fee164803cc127aef64199

    • SHA1

      8a1c7cd16c432a67eb9d71fe745d5ce5e4315dfd

    • SHA256

      bb6ed22605e38edeea643fc3ef43ced73ba96cc3740f8e1d4332932a36d45a41

    • SHA512

      3f11ccce6a0b870e8596e24d2b91d492c8a7d6b6e8d5a0d868a0db90d03a76f0d1c91907bfe98e95d2542deceb39c66a5ce69114d980d61e5bcff4ec1a5c4a78

    • SSDEEP

      98304:47RIWaDhDFxHWAW8+xfbZV1IucY8j8NHM3lngV++ZKHWywyfQmZ:4FItx3WhxFVgY88HM3NgV++Z2WuI+

    • Lumma Stealer, LummaC

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

    • Lumma family

    • Enumerates VirtualBox registry keys

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Checks BIOS information in registry

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

    • Checks computer location settings

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

    • Executes dropped EXE

    • Identifies Wine through registry keys

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

    • Loads dropped DLL

    • Checks installed software on the system

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

    • Enumerates processes with tasklist

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v15

Tasks