General

  • Target

    3540f08b37b30b6c554e0e5ff05a8e97.bin

  • Size

    4.2MB

  • Sample

    241124-bk433ssmhl

  • MD5

    16a5de2f84923105e3777635b4f824bb

  • SHA1

    7aca2f1da3bcf15359a9908c6f2e4fc269adc998

  • SHA256

    dcb43c0257c290b40d10aef8d744a8712337828f76dfd2f72d8cce233005b1c6

  • SHA512

    456d97b79c893b513d9c06b25ac33ad0fb6b80938b27a6b0ec1c71da9ae0a2f402511b6cead930e48d4707cd1986d41cbc863fbdafa8a55e9ae0da12b6efd9c9

  • SSDEEP

    98304:XJZv7J+bJAvbhrU6kQ1GwsszHRDhsb8GlmD/CASz3AHXOGyuF:55t1ZzxtD/Chd/0

Malware Config

Targets

    • Target

      562ab7435cbde0c5528a05f60ce959fa9b428d3378f4d0f5b22f48eb09fe13e6.exe

    • Size

      4.2MB

    • MD5

      3540f08b37b30b6c554e0e5ff05a8e97

    • SHA1

      1ca146fe61b66a73900f1008f8267ec5554413c2

    • SHA256

      562ab7435cbde0c5528a05f60ce959fa9b428d3378f4d0f5b22f48eb09fe13e6

    • SHA512

      9ca4c49a620c2cb06a8c334d1cdce999579f3dcd472b10e7227c54089efe9e68844bfc0e2d34e0b72558e714b01094eeaa849b30566b1d7e7461fe928f1ed201

    • SSDEEP

      98304:xnKBRfe+3kcUqby3hCkwlCSZX+4YVIudgUa/E+3:xKvGwkcUMyRCk0CSZO3yum/E

    • CryptBot

      CryptBot is a C++ stealer distributed widely in bundle with other software.

    • Cryptbot family

    • Detects CryptBot payload

      CryptBot is a C++ stealer distributed widely in bundle with other software.

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

    • Uses browser remote debugging

      Can be used control the browser and steal sensitive information such as credentials and session cookies.

    • Checks BIOS information in registry

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

    • Checks computer location settings

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

    • Executes dropped EXE

    • Identifies Wine through registry keys

      Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Checks installed software on the system

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

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v15

Tasks