General

  • Target

    installer_NEAS.exe

  • Size

    2.7MB

  • Sample

    240506-v21xjafa29

  • MD5

    c29c49f54236b95c5f6228af66c651c5

  • SHA1

    92c2a13c39757b0b656b44e0d1bc55e98ed5cc00

  • SHA256

    0218dd62759681af9aa77bfbd8f43af8de695b7426bb74aecdcd9f25ee53f3da

  • SHA512

    4fd926d42951e3e29a9d7a78b787567d86a5ae01a5bdcbf56058dc61a86d71d6b7bf4254a6136e9844cf2530f1a9bb5f645b40e804cc1cc2602d89bf193a505d

  • SSDEEP

    49152:P9eUwdL4wRqh7YqAVpymthcNRhuvo5NMAN7q4HmfT5RhJRr0UUK81Ezw6HdPd5ik:85zgSt+svYNMAN7jOhJRDrwId

Malware Config

Extracted

Family

cryptbot

C2

oct3m.top

oct3e.top

Targets

    • Target

      installer_NEAS.exe

    • Size

      2.7MB

    • MD5

      c29c49f54236b95c5f6228af66c651c5

    • SHA1

      92c2a13c39757b0b656b44e0d1bc55e98ed5cc00

    • SHA256

      0218dd62759681af9aa77bfbd8f43af8de695b7426bb74aecdcd9f25ee53f3da

    • SHA512

      4fd926d42951e3e29a9d7a78b787567d86a5ae01a5bdcbf56058dc61a86d71d6b7bf4254a6136e9844cf2530f1a9bb5f645b40e804cc1cc2602d89bf193a505d

    • SSDEEP

      49152:P9eUwdL4wRqh7YqAVpymthcNRhuvo5NMAN7q4HmfT5RhJRr0UUK81Ezw6HdPd5ik:85zgSt+svYNMAN7jOhJRDrwId

    • CryptBot

      A C++ stealer distributed widely in bundle with other software.

    • 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.

    • Deletes itself

    • 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.

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Checks installed software on the system

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

    • Checks whether UAC is enabled

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Matrix ATT&CK v13

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Credential Access

Unsecured Credentials

3
T1552

Credentials In Files

3
T1552.001

Discovery

Query Registry

4
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

4
T1082

Collection

Data from Local System

3
T1005

Tasks