General

  • Target

    Etina.exe

  • Size

    7.9MB

  • Sample

    221231-tvgdwahh76

  • MD5

    4911701b9a4ec37a921d146559fdeba2

  • SHA1

    3c1187a150a169454b232b9f7a0498463cae12a3

  • SHA256

    39211f07d03d6378742320296fe3a2566531ec085171e79e6538f426ed1bb97c

  • SHA512

    35c39757984d52f473ceb57f66cc1fcc94130a416aa2c2b9ba2e6e786b57c70b242a8a972b19e035775b4ab69d6d3fbdc3672b6afa306c96cdd6dd5f81a35260

  • SSDEEP

    98304:QWmZk1jiDz4NGbSZfmQZ6QtQljrnMfWA0ISjJsibwe1BT9r51eULRPXg:QWDjiDHs2PN/JbxBT9rDeOm

Malware Config

Targets

    • Target

      Etina.exe

    • Size

      7.9MB

    • MD5

      4911701b9a4ec37a921d146559fdeba2

    • SHA1

      3c1187a150a169454b232b9f7a0498463cae12a3

    • SHA256

      39211f07d03d6378742320296fe3a2566531ec085171e79e6538f426ed1bb97c

    • SHA512

      35c39757984d52f473ceb57f66cc1fcc94130a416aa2c2b9ba2e6e786b57c70b242a8a972b19e035775b4ab69d6d3fbdc3672b6afa306c96cdd6dd5f81a35260

    • SSDEEP

      98304:QWmZk1jiDz4NGbSZfmQZ6QtQljrnMfWA0ISjJsibwe1BT9r51eULRPXg:QWDjiDHs2PN/JbxBT9rDeOm

    • CryptOne packer

      Detects CryptOne packer defined in NCC blogpost.

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Registers COM server for autorun

    • Sets file execution options in registry

    • Checks computer location settings

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

    • Loads dropped DLL

    • Unexpected DNS network traffic destination

      Network traffic to other servers than the configured DNS servers was detected on the DNS port.

    • Adds Run key to start application

    • Checks installed software on the system

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

    • Legitimate hosting services abused for malware hosting/C2

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

3
T1060

Defense Evasion

Modify Registry

3
T1112

Discovery

Query Registry

4
T1012

System Information Discovery

4
T1082

Command and Control

Web Service

1
T1102

Tasks