Overview

overview

10

Static

static

11bce4f2dc...55.zip

windows10-1703-x64

10

Analysis

  • max time kernel
    180s
  • max time network
    184s
  • platform
    windows10-1703_x64
  • resource
    win10-20220812-en
  • resource tags

    arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
  • submitted
    01-12-2022 16:51

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General

  • Target

    11bce4f2dcdc2c1992fddefb109e3ddad384b5171786a1daaddadc83be25f355.zip

  • Size

    2.5MB

  • MD5

    f4235fde77119ac772a2730d55c49c54

  • SHA1

    a250adaf3d5a5c2cd4d5ad4390e4cecbe00b3dd7

  • SHA256

    11bce4f2dcdc2c1992fddefb109e3ddad384b5171786a1daaddadc83be25f355

  • SHA512

    c65b5bbba88cd96856766b1c9f3cce0d7ccedeb63164e165a50508cd2147b522994edaf271953ef19a41afdd7b92bae1aa45b1e5f7e18885a1e68d8012a55086

  • SSDEEP

    24576:/ndTy8pMlAshQiX5Qtme5hekk+t8cH21dFa8POIuTQO0nvpC2QQLVtIwkvME:VT+69d5hrkgp4OlT90nvpdL7kv

Score
10/10
bumblebee1905revasiontrojan

Malware Config

Extracted

Family

bumblebee

Botnet

1905r

C2

154.56.0.221:443

64.44.101.250:443

103.175.16.117:443
rc4.plain

Signatures

  • BumbleBee

    BumbleBee is a webshell malware written in C++.

    trojanbumblebee
  • Enumerates VirtualBox registry keys 2 TTPs 10 IoCs
    evasion
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 6 IoCs
    evasion
  • Looks for VirtualBox Guest Additions in registry 2 TTPs 2 IoCs
    evasion
  • Checks BIOS information in registry 2 TTPs 6 IoCs

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

  • Identifies Wine through registry keys 2 TTPs 2 IoCs

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

    evasion
  • Checks SCSI registry key(s) 3 TTPs 64 IoCs

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

  • Modifies data under HKEY_USERS 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs

Processes

  • C:\Windows\Explorer.exe
    C:\Windows\Explorer.exe /idlist,,C:\Users\Admin\AppData\Local\Temp\11bce4f2dcdc2c1992fddefb109e3ddad384b5171786a1daaddadc83be25f355.zip
    1⤵
      PID:2748
    • C:\Windows\System32\rundll32.exe
      C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
      1⤵
        PID:1716
      • C:\Program Files\7-Zip\7zFM.exe
        "C:\Program Files\7-Zip\7zFM.exe" "C:\Users\Admin\AppData\Local\Temp\11bce4f2dcdc2c1992fddefb109e3ddad384b5171786a1daaddadc83be25f355.iso"
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        PID:4400
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k netsvcs -s DsmSvc
        1⤵
        • Checks SCSI registry key(s)
        • Modifies data under HKEY_USERS
        PID:4408
      • C:\Windows\System32\rundll32.exe
        "C:\Windows\System32\rundll32.exe" tamirlan.dll,EdHVntqdWt
        1⤵
        • 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
        • Suspicious behavior: EnumeratesProcesses
        PID:5016
      • C:\Windows\System32\rundll32.exe
        "C:\Windows\System32\rundll32.exe" tamirlan.dll,EdHVntqdWt
        1⤵
        • 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
        PID:4704

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

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      Downloads

      • memory/4704-118-0x000001C372B10000-0x000001C372BD8000-memory.dmp

        Filesize

        800KB

        Download

      • memory/4704-119-0x00007FFE88490000-0x00007FFE884A0000-memory.dmp

        Filesize

        64KB

        Download

      • memory/5016-116-0x00000206B4500000-0x00000206B45C8000-memory.dmp

        Filesize

        800KB

        Download

      • memory/5016-117-0x00007FFE88490000-0x00007FFE884A0000-memory.dmp

        Filesize

        64KB

        Download