General

  • Target

    NEAS.7e2fc238252c47231d37ab938055672b07423ce2688bb32cff3b97dc179fee9b.exe

  • Size

    11.6MB

  • Sample

    231115-vrvmrsda99

  • MD5

    ba200438ff24d871a56dff7a2df554eb

  • SHA1

    61ed0d05ccc16607e5f26eaf487f1a97a17ae179

  • SHA256

    7e2fc238252c47231d37ab938055672b07423ce2688bb32cff3b97dc179fee9b

  • SHA512

    a095a2e012c7a947fc76e754ae6dc23e41114dac129f332a3fb8457f602d905470018df2e755103666d9d9fe4383bdefa64e8802a8798103a99890db31392f86

  • SSDEEP

    98304:DAbxta1VhHg2ZWlJzbTKbq99/fKG1nEB/bE7ccv+1111mTPeiv0xxx++BYzlfj8L:DAbxtaDhHg2Zzbq99/yyn77RMC1Qv5

Malware Config

Targets

    • Target

      NEAS.7e2fc238252c47231d37ab938055672b07423ce2688bb32cff3b97dc179fee9b.exe

    • Size

      11.6MB

    • MD5

      ba200438ff24d871a56dff7a2df554eb

    • SHA1

      61ed0d05ccc16607e5f26eaf487f1a97a17ae179

    • SHA256

      7e2fc238252c47231d37ab938055672b07423ce2688bb32cff3b97dc179fee9b

    • SHA512

      a095a2e012c7a947fc76e754ae6dc23e41114dac129f332a3fb8457f602d905470018df2e755103666d9d9fe4383bdefa64e8802a8798103a99890db31392f86

    • SSDEEP

      98304:DAbxta1VhHg2ZWlJzbTKbq99/fKG1nEB/bE7ccv+1111mTPeiv0xxx++BYzlfj8L:DAbxtaDhHg2Zzbq99/yyn77RMC1Qv5

    • Glupteba

      Glupteba is a modular loader written in Golang with various components.

    • Glupteba payload

    • Modifies Windows Defender Real-time Protection settings

    • UAC bypass

    • Windows security bypass

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • 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.

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Windows security modification

    • 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

    • Drops Chrome extension

    • Drops desktop.ini file(s)

    • Legitimate hosting services abused for malware hosting/C2

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks