Analysis

  • max time kernel
    105s
  • max time network
    108s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    19-09-2021 11:55

General

  • Target

    f47bc123831a1855a959fbf51b4138683af7bbbde13ad9f164594d2aa6516791.bin.dll

  • Size

    7.1MB

  • MD5

    473b4e622b982a92cba1ba8afcda8273

  • SHA1

    9a7a192b67895f63f1afdf5adf7ba2d195a17d80

  • SHA256

    f47bc123831a1855a959fbf51b4138683af7bbbde13ad9f164594d2aa6516791

  • SHA512

    bd437fa921c6e2c74d8c8aacc94daf2a560f90ad0fde54004902eb55b009bd705aa9e58e27e49e16f32f962302363e7991af59ba212be0f438909dc5be6032b0

Malware Config

Signatures

  • Detect Numando Payload 2 IoCs
  • Numando

    Numando is a banking trojan/backdoor targeting Latin America which uses Youtube and Pastebin for C2 communications.

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Themida packer 1 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 13 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\f47bc123831a1855a959fbf51b4138683af7bbbde13ad9f164594d2aa6516791.bin.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1096
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\f47bc123831a1855a959fbf51b4138683af7bbbde13ad9f164594d2aa6516791.bin.dll,#1
      2⤵
      • Checks BIOS information in registry
      • Checks whether UAC is enabled
      PID:64
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 64 -s 724
        3⤵
        • Program crash
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1276

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/64-114-0x0000000000000000-mapping.dmp

  • memory/64-115-0x0000000004A90000-0x000000000538D000-memory.dmp

    Filesize

    9.0MB

  • memory/64-116-0x0000000004A91000-0x0000000004D4C000-memory.dmp

    Filesize

    2.7MB