Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    09/06/2026, 00:56

General

  • Target
    tmpvtlb_eo8.msi
  • Size 5.3MB
  • Sample260609-bak78aav6k
  • SHA256 46279bf47f037c5e05e84ecd3aa6f7c0074696bfe0ccb8df4781033e79e8aa1d
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • bumblebee

Botnet
  • 10112

Attributes
  • dga

    vca3utda017.click

    knvop5puf3w.click

    fuoor4i9488.click

    e27y0btovqa.click

    4td54jwr0zo.click

    8u1tf686x8r.click

    7rbvv9nr7ux.click

    0qlcz1igan7.click

    1ywg4j0oomt.click

    uk2cx2bz9oh.click

    mmh6zjh9rws.click

    tyv7socu189.click

    nu1ry3ywid2.click

    qbjc9488vee.click

    v8tarf4uflp.click

    nubhcl6uvd6.click

    pj2h7xw21zx.click

    n22xrd1xrto.click

    1age5rpmnbq.click

    s7ebb7t79vn.click

    t8vxfebri9r.click

    77ch3dlvcuc.click

    4k2znm7tg08.click

    ie4jzevdaka.click

    pweekbw7x9i.click

    dg4j9l1r2ay.click

    6linr1ga29p.click

    ae4fgatomcn.click

    i0rwy7k6rh8.click

    zrvvmchlzab.click

  • dga_seed

    7827833623176771557

  • domain_length

    11

  • num_dga_domains

    300

  • port

    443

  • tld

    .click

rc4.plain

Signatures

  • Family: BumbleBee

    BumbleBee is a loader malware written in C++.

  • Badlisted process makes network request 28 IoCs

    Network request originating from process or tool commonly abused by malware.

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 29 IoCs
  • Enumerates connected drives 3 TTPs 64 IoCs

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

  • Drops file in Windows directory 42 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

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

  • Checks SCSI registry key(s) 3 TTPs 5 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 5 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Windows\system32\msiexec.exe
    msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\tmpvtlb_eo8.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:1288
  • 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:2036
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:1012
      • C:\Windows\system32\rundll32.exe
        "rundll32.exe" "C:\Users\Admin\AppData\Local\Temp\ApplicationInstallationFolder_11\ZipItNow.dll",DllRegisterServer
        2⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        PID:236
      • C:\Users\Admin\AppData\Local\Temp\ApplicationInstallationFolder_11\ZipItNow.exe
        "C:\Users\Admin\AppData\Local\Temp\ApplicationInstallationFolder_11\ZipItNow.exe"
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Enumerates connected drives
        • System Location Discovery: System Language Discovery
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of WriteProcessMemory
        PID:1208
        • C:\Windows\SysWOW64\msiexec.exe
          "C:\Windows\system32\msiexec.exe" /i "C:\Users\Admin\AppData\Roaming\Zip It Now\Zip It Now 1.4.0.0\install\7645A40\ZipItNow.msi" AI_SETUPEXEPATH=C:\Users\Admin\AppData\Local\Temp\ApplicationInstallationFolder_11\ZipItNow.exe SETUPEXEDIR=C:\Users\Admin\AppData\Local\Temp\ApplicationInstallationFolder_11\ EXE_CMD_LINE="/exenoupdates /forcecleanup /wintime 1780725918 " AI_EUIMSI=""
          3⤵
          • Enumerates connected drives
          • System Location Discovery: System Language Discovery
          • Suspicious use of FindShellTrayWindow
          PID:1884
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 106D93F43A3C21D0A6481C9C1BB132C8 C
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:496
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 0F7EA94C0092872ECE4AAD61A3C934DF
        2⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4240
        • C:\Windows\SysWOW64\rundll32.exe
          rundll32.exe "C:\Windows\Installer\MSIA516.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240690578 3 RequestSender!RequestSender.CustomActions.Start
          3⤵
          • Badlisted process makes network request
          • Loads dropped DLL
          • Drops file in Windows directory
          • System Location Discovery: System Language Discovery
          PID:4024
        • C:\Windows\SysWOW64\rundll32.exe
          rundll32.exe "C:\Windows\Installer\MSIA7CF.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240691156 61 RequestSender!RequestSender.CustomActions.CreateScheduledTask
          3⤵
          • Loads dropped DLL
          • Drops file in Windows directory
          • System Location Discovery: System Language Discovery
          PID:2068
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      • Suspicious use of AdjustPrivilegeToken
      PID:2076
    • C:\Users\Admin\AppData\Roaming\Zip It Now\upd.exe
      "C:\Users\Admin\AppData\Roaming\Zip It Now\upd.exe"
      1⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      PID:4720

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e589bde.rbs

          • Path C:\Config.Msi\e589bde.rbs
          • Size 8KB
          • SHA256 e84435b9c53362ecf399f757ea2e5033225d46aa37cd233cd2acf594a9f09d3c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          rundll32.exe.log

          • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\rundll32.exe.log
          • Size 847B
          • SHA256 f4d1c038db378dec10e7e2fc81ccc2e2d4b8132ef0d66905e3625a0b0cbbde5f
          • MD5 SHA1 SHA512 TLSH

          ZipItNow.dll

          • Path C:\Users\Admin\AppData\Local\Temp\ApplicationInstallationFolder_11\ZipItNow.dll
          • Size 2.1MB
          • SHA256 7010549cf7d4ce19718a43c7cbceadef3a7e7900da8d21c5a37319825c9d20de
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ZipItNow.exe

          • Path C:\Users\Admin\AppData\Local\Temp\ApplicationInstallationFolder_11\ZipItNow.exe
          • Size 4.7MB
          • SHA256 956713b1bca39dc306f5402815f1258cfe4279c85c42758c0e107e5f8ee5576a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIA276.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSIA276.tmp
          • Size 386KB
          • SHA256 bf7f6f7e527ab8617766bb7a21c21b2895b5275c0e808756c2aadcd66eff8a97
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ZipItNow.msi

          • Path C:\Users\Admin\AppData\Roaming\Zip It Now\Zip It Now 1.4.0.0\install\7645A40\ZipItNow.msi
          • Size 2.6MB
          • SHA256 39da510263e23e8b172f460f8946f0934eeff7c1bb8aeb2f92e4439fd6eea1b8
          • MD5 SHA1 SHA512 SSDEEP TLSH

          upd.exe

          • Path C:\Users\Admin\AppData\Roaming\Zip It Now\Zip It Now 1.4.0.0\install\7645A40\upd.exe
          • Size 1.6MB
          • SHA256 5ac47d4b9de6a7a45202417bfbd65501ed227a02aeae19c8a5b4e902299ef1df
          • MD5 SHA1 SHA512 SSDEEP TLSH

          zip_it_now.exe

          • Path C:\Users\Admin\AppData\Roaming\Zip It Now\Zip It Now 1.4.0.0\install\7645A40\zip_it_now.exe
          • Size 517KB
          • SHA256 941580cbad9e1c9e3e62c49a80ce2c7931ee4a931a00e36309b3b4d2f1c69907
          • MD5 SHA1 SHA512 SSDEEP TLSH

          decoder.dll

          • Path C:\Users\Admin\AppData\Roaming\Zip It Now\Zip It Now 1.4.0.0\install\decoder.dll
          • Size 206KB
          • SHA256 9b7ff49f7e1d0a39826ec458c8004b20a65a4bd0592b083f38b01e2dbc2b510f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIA516.tmp

          • Path C:\Windows\Installer\MSIA516.tmp
          • Size 416KB
          • SHA256 45608820ac1375e4490f0bb1b289745ef7183370f2411138f50a88d363f9cad0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIA653.tmp

          • Path C:\Windows\Installer\MSIA653.tmp
          • Size 544KB
          • SHA256 32211c43bcfee2ea3ae54899af178d1fc0c2b1111b2a9e3cc3fd125e1ab7daad
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIA760.tmp

          • Path C:\Windows\Installer\MSIA760.tmp
          • Size 401KB
          • SHA256 8a77ed5526ecf88b81844993b5c55bdf6e056aade9c8cb3e1fd89a3b4d41a780
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Win32.TaskScheduler.dll

          • Path C:\Windows\Installer\SFXCA020447B5EF4AC69A483AB0E33026B690\Microsoft.Win32.TaskScheduler.dll
          • Size 325KB
          • SHA256 ea27c65491119eee5c8e87ce3d470783580db8fc5bd141c496768d7d0cce779a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          RequestSender.dll

          • Path C:\Windows\Installer\SFXCA020447B5EF4AC69A483AB0E33026B690\RequestSender.dll
          • Size 13KB
          • SHA256 a3f2df576e23e27904150abe24b4a03c7dfa2fb52bb847ab54e8b4cd0032103d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          WixToolset.Dtf.WindowsInstaller.dll

          • Path C:\Windows\Installer\SFXCA020447B5EF4AC69A483AB0E33026B690\WixToolset.Dtf.WindowsInstaller.dll
          • Size 193KB
          • SHA256 a614884ea627da1925131ebf41e8ae202caeac0fe543b86384f5eb2bfaf1aa75
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Windows\Installer\SFXCAE3FE1E3CD24DBD7BB1D8C7A76E5D2CCC\CustomAction.config
          • Size 959B
          • SHA256 7e1096d6f39ebe04d6e38bc714983af05ed92cc2bb4d3365ed4c85e733cb145c
          • MD5 SHA1 SHA512 TLSH

          e589bdd.msi

          • Path C:\Windows\Installer\e589bdd.msi
          • Size 5.3MB
          • SHA256 46279bf47f037c5e05e84ecd3aa6f7c0074696bfe0ccb8df4781033e79e8aa1d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 24.6MB
          • SHA256 903f15ff36269da9ac4a88c079463845ebb345418802e1aaf3cf36addf21b4ca
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {052b9f25-f7de-4b5f-87c7-0063d2ec9aad}_OnDiskSnapshotProp

          • Path \??\Volume{b99e3a64-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{052b9f25-f7de-4b5f-87c7-0063d2ec9aad}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 0cbc603bd0e499e01a084fcebaac2db338e174ad4d32a503ef80b41992a95c61
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/236-176-0x00007FFACEC70000-0x00007FFACEE93000-memory.dmp

          memory/236-15-0x00007FFACEC70000-0x00007FFACEE93000-memory.dmp

          memory/236-172-0x00007FFACEC70000-0x00007FFACEE93000-memory.dmp

          memory/236-177-0x00007FFACEC70000-0x00007FFACEE93000-memory.dmp

          memory/236-178-0x00007FFACEC70000-0x00007FFACEE93000-memory.dmp

          memory/236-179-0x00007FFACEC70000-0x00007FFACEE93000-memory.dmp

          memory/236-180-0x00007FFACEC70000-0x00007FFACEE93000-memory.dmp

          memory/236-181-0x00007FFACEC70000-0x00007FFACEE93000-memory.dmp

          memory/2068-127-0x0000000004C10000-0x0000000004C68000-memory.dmp

          memory/4024-95-0x0000000005480000-0x000000000548A000-memory.dmp

          memory/4024-105-0x0000000005550000-0x00000000055B6000-memory.dmp

          memory/4024-84-0x00000000054A0000-0x00000000054D4000-memory.dmp

          memory/4720-171-0x00007FF7632D0000-0x00007FF763469000-memory.dmp