Resubmissions

14-06-2022 13:46

220614-q27ymaeddr 10

14-06-2022 13:36

220614-qwnmssadd4 3

14-06-2022 09:14

220614-k7h9kahcb9 10

12-06-2022 12:43

220612-pxv8lacabn 7

01-06-2022 16:27

220601-tyedpaeahk 10

General

  • Target

    zxcvb.exe

  • Size

    40KB

  • Sample

    220614-q27ymaeddr

  • MD5

    0a7b32e75a01764ef5389a1d9e72ed63

  • SHA1

    871366f3573c3349e9dc7b67fef1ef575815c154

  • SHA256

    34ba222ef969f09ecca5506cbada7c346469a96a6af0cdd21146d4435196deda

  • SHA512

    f19a7d56a825b59d2841a4f10db940458d3255239e15bb9bbe1376e1fc47d4c97aef09d4e7ecd5a3a35fca44ec92edf60edd4a07ef1845d679c3bd4fc8fe43ba

Malware Config

Targets

    • Target

      zxcvb.exe

    • Size

      40KB

    • MD5

      0a7b32e75a01764ef5389a1d9e72ed63

    • SHA1

      871366f3573c3349e9dc7b67fef1ef575815c154

    • SHA256

      34ba222ef969f09ecca5506cbada7c346469a96a6af0cdd21146d4435196deda

    • SHA512

      f19a7d56a825b59d2841a4f10db940458d3255239e15bb9bbe1376e1fc47d4c97aef09d4e7ecd5a3a35fca44ec92edf60edd4a07ef1845d679c3bd4fc8fe43ba

    • xmrig

      XMRig is a high performance, open source, cross platform CPU/GPU miner.

    • XMRig Miner Payload

    • Executes dropped EXE

    • Modifies Windows Firewall

    • Sets DLL path for service in the registry

    • 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.

    • Accesses Microsoft Outlook profiles

    • Adds Run key to start application

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Modifies WinLogon

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks