Resubmissions

24-09-2023 13:36

230924-qwaqyafd8s 10

24-09-2023 13:30

230924-qr3k6afd4x 10

General

  • Target

    EXPENSIVE LOADER.exe

  • Size

    1.3MB

  • Sample

    230924-qr3k6afd4x

  • MD5

    bfb9334833749790c0df81ab1489c5a9

  • SHA1

    b38e3080dfb1d35ae303b9f0c14a7cf12621de7c

  • SHA256

    cc16768fe66b11c07282c6d5d543701b85b283a44de51fdd4a9bd2a014f37b68

  • SHA512

    e41a66d9932f7853c9015ef0361cfbf4702a31d356e97dae1fb9ece085b808cac0e9a5d6d70a2763d08b3f940aacc074181bae6755077933d97f9a92b93c65d1

  • SSDEEP

    24576:bw3SBs2Mhfs2OcpIi5aO9z1dn7Az8Zk61NlPXYpky7vKCB/nO:E3P2MhkPTaz1tswiKPXYpkyjKCB/O

Malware Config

Targets

    • Target

      EXPENSIVE LOADER.exe

    • Size

      1.3MB

    • MD5

      bfb9334833749790c0df81ab1489c5a9

    • SHA1

      b38e3080dfb1d35ae303b9f0c14a7cf12621de7c

    • SHA256

      cc16768fe66b11c07282c6d5d543701b85b283a44de51fdd4a9bd2a014f37b68

    • SHA512

      e41a66d9932f7853c9015ef0361cfbf4702a31d356e97dae1fb9ece085b808cac0e9a5d6d70a2763d08b3f940aacc074181bae6755077933d97f9a92b93c65d1

    • SSDEEP

      24576:bw3SBs2Mhfs2OcpIi5aO9z1dn7Az8Zk61NlPXYpky7vKCB/nO:E3P2MhkPTaz1tswiKPXYpkyjKCB/O

    • 44Caliber

      An open source infostealer written in C#.

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Checks for any installed AV software in registry

    • Checks whether UAC is enabled

    • Enumerates connected drives

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

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v15

Tasks