General

  • Target

    3b1e7e5df7f530ad30e29bb081f1c6e1

  • Size

    20.1MB

  • Sample

    231231-1hcngseefm

  • MD5

    3b1e7e5df7f530ad30e29bb081f1c6e1

  • SHA1

    c54b0c1e12658c7882de84bfe7de4794d4182b39

  • SHA256

    50feea35e7a324e67b951d06fc3f0f5b01199b47b3cfb5a693e33eec699f84f2

  • SHA512

    83cb343bad4a00a0c2fb189057cc7fe2c642a8351816509c2239ff4503ac39322130a0f1e718691403c022be3ead6bae0b00a50aa1fd778bad8ba2bdd1c2da6f

  • SSDEEP

    393216:5hgfUt5Jb7h8Ki8H/4B+/UI+CyW3V1na971fyfP1WH5ePswr/d1:5hXX7hhi8QRbBM1nm71fy3100soX

Malware Config

Extracted

Family

44caliber

C2

https://discord.com/api/webhooks/870328559921668146/kazDUWGIa2HOkULS2qQpDIz38by-5RiNdWFILJQZSPRi2F9j1-5L1rtRf7yO0-V87Q4N

Targets

    • Target

      3b1e7e5df7f530ad30e29bb081f1c6e1

    • Size

      20.1MB

    • MD5

      3b1e7e5df7f530ad30e29bb081f1c6e1

    • SHA1

      c54b0c1e12658c7882de84bfe7de4794d4182b39

    • SHA256

      50feea35e7a324e67b951d06fc3f0f5b01199b47b3cfb5a693e33eec699f84f2

    • SHA512

      83cb343bad4a00a0c2fb189057cc7fe2c642a8351816509c2239ff4503ac39322130a0f1e718691403c022be3ead6bae0b00a50aa1fd778bad8ba2bdd1c2da6f

    • SSDEEP

      393216:5hgfUt5Jb7h8Ki8H/4B+/UI+CyW3V1na971fyfP1WH5ePswr/d1:5hXX7hhi8QRbBM1nm71fy3100soX

    • 44Caliber

      An open source infostealer written in C#.

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Reads user/profile data of web browsers

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

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Checks whether UAC is enabled

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v15

Tasks