Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    02/06/2026, 01:59

General

  • Target
    tmpzx8m0tzj.msi
  • Size 9.3MB
  • Sample260602-cedvdacw7j
  • SHA256 27487060866209922c13a92bbcc3457fbbf977f5aaff25e199778e8a023d9c24
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • bumblebee

Botnet
  • rvt1

Attributes
  • dga

    7g342zvzn3uqq.life

    xsenlg0qhhi1b.life

    g0yw5p28hbx0s.life

    52szf55f8gmk8.life

    rkrjtpvvmeals.life

    17ek6ne63tvp1.life

    iwzkgwcv5ebat.life

    9n9tal4hw00ip.life

    6rzcyj1sswqm2.life

    b51lj50er7i5c.life

    7gup8m7nsh4bl.life

    pxu2liz19adny.life

    pdyckgp144x0w.life

    hsxe8ye2venfd.life

    oh6qtkwfuus46.life

    xigticnxbhrv8.life

    euod9uk8f3l81.life

    i6r4k2jo8giob.life

    9qnk0nmyswkvz.life

    3tkemqy8wipsj.life

    yo2blls44tlmy.life

    aftxgkj92l0in.life

    awov62djki4y0.life

    duhhgvdrjx5m8.life

    zucscj1mnafjq.life

    u0dvovexg8a9r.life

    94y5pkgk1etpy.life

    jced3p0f46gyy.life

    h3t6oau35fj9w.life

    ch7bk8l5jzsdy.life

  • dga_seed

    -7827392873490824478

  • domain_length

    13

  • num_dga_domains

    300

  • port

    443

  • tld

    .life

rc4.plain

Signatures

  • Family: BumbleBee

    BumbleBee is a loader malware written in C++.

  • Badlisted process makes network request 21 IoCs

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

  • Loads dropped DLL 5 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 Program Files directory 32 IoCs
  • Drops file in Windows directory 19 IoCs
  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 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.

  • Modifies data under HKEY_USERS 18 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of WriteProcessMemory 5 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\tmpzx8m0tzj.msi
    1⤵
    • Badlisted process makes network request
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:2140
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3468
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:1804
      • C:\Windows\system32\msiexec.exe
        msiexec /i "C:\Users\Admin\AppData\Local\Temp\ApplicationInstallationFolder_11\RVTools4.7.1.msi"
        2⤵
        • Enumerates connected drives
        • Suspicious use of FindShellTrayWindow
        PID:4048
      • C:\Windows\system32\rundll32.exe
        "rundll32.exe" "C:\Users\Admin\AppData\Local\Temp\ApplicationInstallationFolder_11\RVTools.dll",DllRegisterServer
        2⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        PID:3892
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 8BCC866C12CB520C468460D6ACEB9197 C
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Modifies data under HKEY_USERS
        PID:2996
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding F1579E959556374445D601212E0FBB98 E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2936
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      • Suspicious use of AdjustPrivilegeToken
      PID:888

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e58bddd.rbs

          • Path C:\Config.Msi\e58bddd.rbs
          • Size 7KB
          • SHA256 bfa755f96bb985b4d08909ccf403d1238464225c4276d8abf204e999b2ac1798
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e58bde0.rbs

          • Path C:\Config.Msi\e58bde0.rbs
          • Size 19KB
          • SHA256 9b4cd5e8c6bac93c4f2b4a7c8c078f44f743f0659658c47e9689cc4eebcb6fad
          • MD5 SHA1 SHA512 SSDEEP TLSH

          357F04AD41BCF5FE18FCB69F60C6680F_516886BFB2BA4E910846C2BE07CD737A

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\357F04AD41BCF5FE18FCB69F60C6680F_516886BFB2BA4E910846C2BE07CD737A
          • Size 1KB
          • SHA256 d58f74d4e8e99394dfca60ee58ee41911581e7ec470e5a92234dc3854f7f6b39
          • MD5 SHA1 SHA512 TLSH

          9CB4373A4252DE8D2212929836304EC5_1AB74AA2E3A56E1B8AD8D3FEC287554E

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\9CB4373A4252DE8D2212929836304EC5_1AB74AA2E3A56E1B8AD8D3FEC287554E
          • Size 1KB
          • SHA256 b35260221236e2997429a3d05d79273d0e1944bd47e9e065b9e0b3d88c2b0ddd
          • MD5 SHA1 SHA512 TLSH

          357F04AD41BCF5FE18FCB69F60C6680F_516886BFB2BA4E910846C2BE07CD737A

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\357F04AD41BCF5FE18FCB69F60C6680F_516886BFB2BA4E910846C2BE07CD737A
          • Size 540B
          • SHA256 6a8a8bb89bff1953806919a93141d6f14350bba58d22f05a5ed5f81b9326cc58
          • MD5 SHA1 SHA512 TLSH

          9CB4373A4252DE8D2212929836304EC5_1AB74AA2E3A56E1B8AD8D3FEC287554E

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\9CB4373A4252DE8D2212929836304EC5_1AB74AA2E3A56E1B8AD8D3FEC287554E
          • Size 536B
          • SHA256 42078b1e3e429299b5573e5fbc651cf080d6aafd397c5b72f116435c4806785e
          • MD5 SHA1 SHA512 TLSH

          RVTools.dll

          • Path C:\Users\Admin\AppData\Local\Temp\ApplicationInstallationFolder_11\RVTools.dll
          • Size 2.1MB
          • SHA256 fb51b8123a5f6f9e886af8f9455f7992ba58bebe905c4fd74cd8568eee60eef2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          RVTools4.7.1.msi

          • Path C:\Users\Admin\AppData\Local\Temp\ApplicationInstallationFolder_11\RVTools4.7.1.msi
          • Size 8.0MB
          • SHA256 0506126bcbc4641d41c138e88d9ea9f10fb65f1eeab3bff90ad25330108b324c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSIC01F.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSIC01F.tmp
          • Size 285KB
          • SHA256 f74c97b1a53541b059d3bfafe41a79005ce5065f8210d7de9f1b600dc4e28aa0
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e58bddc.msi

          • Path C:\Windows\Installer\e58bddc.msi
          • Size 9.3MB
          • SHA256 27487060866209922c13a92bbcc3457fbbf977f5aaff25e199778e8a023d9c24
          • MD5 SHA1 SHA512 SSDEEP TLSH

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 24.1MB
          • SHA256 cd28f8da260cc27fe430edd880bb01276c9a0e2b5d711bc30bc4f16e94891d57
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {77123db3-1209-477b-baf8-7925b11abd5e}_OnDiskSnapshotProp

          • Path \??\Volume{fef0c820-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{77123db3-1209-477b-baf8-7925b11abd5e}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 04c6ec2bb255bb80042f4334ab38253f40f5990f941eeeaf8ed1895e46635d2a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/3892-36-0x00007FFD89690000-0x00007FFD898B2000-memory.dmp

          memory/3892-110-0x00007FFD89690000-0x00007FFD898B2000-memory.dmp

          memory/3892-111-0x00007FFD89690000-0x00007FFD898B2000-memory.dmp

          memory/3892-113-0x00007FFD89690000-0x00007FFD898B2000-memory.dmp

          memory/3892-114-0x00007FFD89690000-0x00007FFD898B2000-memory.dmp

          memory/3892-115-0x00007FFD89690000-0x00007FFD898B2000-memory.dmp

          memory/3892-118-0x00007FFD89690000-0x00007FFD898B2000-memory.dmp

          memory/3892-119-0x00007FFD89690000-0x00007FFD898B2000-memory.dmp