Overview

overview

10

Static

static

sample/Document.lnk

windows10-2004-x64

10

Resubmissions

13-09-2022 06:25

220913-g6tr5aafem 10

13-09-2022 06:22

220913-g48s9seha8 5

12-09-2022 18:09

220912-wrkcgahefn 3

Analysis

  • max time kernel
    210s
  • max time network
    213s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-09-2022 06:25

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General

  • Target

    sample/Document.lnk

  • Size

    1KB

  • MD5

    c6604e76ee959ef592e0c08bc556f3ab

  • SHA1

    a68c9ce3ee38d020d165dd253105c542eccb2f9c

  • SHA256

    b7c88bbf7004fe5e570c6db2730d773d0e782bebb8ab21a00309b663a95f52fb

  • SHA512

    f428eeab9fe8dffa455de4fc45a1d1b48ec4bf7fffdfb2a8f1366cbeed821f0b47e8754ec5c03f9939ebab7b07ff7ff872042b3a77db0273567c7830ba652f82

Score
10/10
bumblebeeevasiontrojan

Malware Config

Signatures

  • BumbleBee

    BumbleBee is a webshell malware written in C++.

    trojanbumblebee
  • Enumerates VirtualBox registry keys 2 TTPs 5 IoCs
    evasion
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 3 IoCs
    evasion
  • Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
    evasion
  • Checks BIOS information in registry 2 TTPs 3 IoCs

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

  • Identifies Wine through registry keys 2 TTPs 1 IoCs

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

    evasion
  • Loads dropped DLL 1 IoCs
  • Drops file in System32 directory 2 IoCs
  • Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    cmd /c C:\Users\Admin\AppData\Local\Temp\sample\Document.lnk
    1⤵
      PID:4904
    • C:\Windows\System32\rundll32.exe
      C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
      1⤵
        PID:4760
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\son\soaring.bat" "
        1⤵
        • Suspicious use of WriteProcessMemory
        PID:4260
        • C:\Windows\system32\xcopy.exe
          xcopy /s /i /e /h son\enchanting.dat C:\Users\Admin\AppData\Local\Temp\*
          2⤵
            PID:5016
          • C:\Windows\system32\rundll32.exe
            rundll32 C:\Users\Admin\AppData\Local\Temp\enchanting.dat,vcsfile
            2⤵
            • Enumerates VirtualBox registry keys
            • Identifies VirtualBox via ACPI registry values (likely anti-VM)
            • Looks for VirtualBox Guest Additions in registry
            • Checks BIOS information in registry
            • Identifies Wine through registry keys
            • Loads dropped DLL
            • Suspicious use of NtCreateThreadExHideFromDebugger
            • Suspicious behavior: EnumeratesProcesses
            PID:2064
        • C:\Windows\System32\svchost.exe
          C:\Windows\System32\svchost.exe -k netsvcs -p
          1⤵
          • Drops file in System32 directory
          PID:4492

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\enchanting.dat
          Filesize

          2.8MB

          MD5

          dc7992c5d6c2518464ee8d8f2c509b32

          SHA1

          d8866baf07a5dab2f407439ca5f7909e2bb6c461

          SHA256

          d11d07a44788e6b71ff138b96caeb4e81adbbcceee74ac809264bfae7667ed66

          SHA512

          e11630d07d2a9bc53c7ec4812c7b09ac961d808c08b433225b3920d11e89f752109038f7d6d1e630e8e01b21be51ac8451ce46c7e33dc4cd9d75b1bcb8272180

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        • C:\Users\Admin\AppData\Local\Temp\enchanting.dat
          Filesize

          2.8MB

          MD5

          dc7992c5d6c2518464ee8d8f2c509b32

          SHA1

          d8866baf07a5dab2f407439ca5f7909e2bb6c461

          SHA256

          d11d07a44788e6b71ff138b96caeb4e81adbbcceee74ac809264bfae7667ed66

          SHA512

          e11630d07d2a9bc53c7ec4812c7b09ac961d808c08b433225b3920d11e89f752109038f7d6d1e630e8e01b21be51ac8451ce46c7e33dc4cd9d75b1bcb8272180

          Download Submit

        • memory/2064-136-0x00000260E25D0000-0x00000260E2730000-memory.dmp

          Filesize

          1.4MB

          Download