General

  • Target

    c38dc2c405fb2b894bd668cbcf714b3db28489a818a76f3907c66cf321363909

  • Size

    443KB

  • Sample

    220521-cl966ahbdp

  • MD5

    5b61f96af7280d74062003bf50f88d39

  • SHA1

    903b73f3b95f95cd62c38d3699a5ae532241fa32

  • SHA256

    c38dc2c405fb2b894bd668cbcf714b3db28489a818a76f3907c66cf321363909

  • SHA512

    1e33bf2f744e11e1d51befee5b0309ecbccfb9c22a13ef80d83a1ed762d443f59ee0d78ec4964cf4300b14744e2919f771c9e71a04c46f35a0ba4c27808e4964

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    chosen@@@123

Targets

    • Target

      ???? ??????? ?? ???????.exe

    • Size

      538KB

    • MD5

      959e9ad055d2267996243aac23a9609c

    • SHA1

      3d6d40e1cf5166cf3234e7b20d4f76cb37d38314

    • SHA256

      d1352b4a3c53a563c8d970475a40069298854458db6a2db0f98020fbc1d7a3a2

    • SHA512

      8a1fd6f162e55261236f7b95d0458f8b11f9ab738515842861618d492709d1019b5cd9e4dd5448d0884798d97bf0e529fa4f40e68e3b2070e856b15db22dc96a

    • AgentTesla

      Agent Tesla is a remote access tool (RAT) written in visual basic.

    • CoreEntity .NET Packer

      A .NET packer called CoreEntity where it has embedded the payload as a BitMap object which is later decrypted.

    • AgentTesla Payload

    • CoreCCC Packer

      Detects CoreCCC packer used to load .NET malware.

    • ReZer0 packer

      Detects ReZer0, a packer with multiple versions used in various campaigns.

    • Checks computer location settings

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

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • Reads user/profile data of web browsers

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

    • Accesses Microsoft Outlook profiles

MITRE ATT&CK Enterprise v6

Tasks