Resubmissions

06-11-2024 21:51

241106-1qlalaydkg 10

04-11-2024 21:29

241104-1bzvfaxkcs 10

04-11-2024 21:17

241104-z43lcsxejc 10

03-11-2024 21:29

241103-1byx5svelh 10

Analysis

  • max time kernel
    57s
  • max time network
    20s
  • platform
    windows11-21h2_x64
  • resource
    win11-20241007-en
  • resource tags

    arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    04-11-2024 21:17

General

  • Target

    79a67070f0fbff66cb39f3dadd3e3565b1b1b98ed9e079562aabd90d10ad75ac.exe

  • Size

    12.0MB

  • MD5

    59d018958d77ee68568eac6250a4224e

  • SHA1

    a5ac1b794b33da74b7d587b04394721f7aa96d0f

  • SHA256

    79a67070f0fbff66cb39f3dadd3e3565b1b1b98ed9e079562aabd90d10ad75ac

  • SHA512

    5f285f3920463646a77487c9e0b1c46ebe950f779fafb524d6064aa280ba84c3119cd19c2b88f3011e20a7f7b70a1341103d42baca28f1781d8670bca8737881

  • SSDEEP

    393216:VobaG+ZUoC9EYeWJ8taL/d2otNCk2rszUXS:VMaG+Z7C9M+RJ2ontkXS

Malware Config

Signatures

  • Babuk Locker

    RaaS first seen in 2021 initially called Vasa Locker.

  • Babuk family
  • Deletes shadow copies 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Renames multiple (213) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 18 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

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

  • Detects Pyinstaller 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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.

  • Interacts with shadow copies 3 TTPs 2 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs
  • Uses Volume Shadow Copy service COM API

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\79a67070f0fbff66cb39f3dadd3e3565b1b1b98ed9e079562aabd90d10ad75ac.exe
    "C:\Users\Admin\AppData\Local\Temp\79a67070f0fbff66cb39f3dadd3e3565b1b1b98ed9e079562aabd90d10ad75ac.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3600
    • C:\Users\Admin\AppData\Local\Temp\valorant-skin-cli.exe
      "C:\Users\Admin\AppData\Local\Temp\valorant-skin-cli.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:4736
      • C:\Users\Admin\AppData\Local\Temp\valorant-skin-cli.exe
        "C:\Users\Admin\AppData\Local\Temp\valorant-skin-cli.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1220
    • C:\Users\Admin\AppData\Local\Temp\e_win.exe
      "C:\Users\Admin\AppData\Local\Temp\e_win.exe"
      2⤵
      • Executes dropped EXE
      • Enumerates connected drives
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3044
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1440
        • C:\Windows\system32\vssadmin.exe
          vssadmin.exe delete shadows /all /quiet
          4⤵
          • Interacts with shadow copies
          PID:2004
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1552
        • C:\Windows\system32\vssadmin.exe
          vssadmin.exe delete shadows /all /quiet
          4⤵
          • Interacts with shadow copies
          PID:4244
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1044

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\_MEI47362\VCRUNTIME140.dll

    Filesize

    87KB

    MD5

    0e675d4a7a5b7ccd69013386793f68eb

    SHA1

    6e5821ddd8fea6681bda4448816f39984a33596b

    SHA256

    bf5ff4603557c9959acec995653d052d9054ad4826df967974efd2f377c723d1

    SHA512

    cae69a90f92936febde67dacd6ce77647cb3b3ed82bb66463cd9047e90723f633aa2fc365489de09fecdc510be15808c183b12e6236b0893af19633f6a670e66

  • C:\Users\Admin\AppData\Local\Temp\_MEI47362\_asyncio.pyd

    Filesize

    70KB

    MD5

    45126a5a3995f890e5c942ba615a569c

    SHA1

    928aa2b9f2e2485dc835c6d0f92999f5d5581264

    SHA256

    490e3b87f7a570ee09e4d95a439c525883b4ab22b701cf89f68409a559e7bbf3

    SHA512

    dcc282bc6e6b524f1e9a66a042a10afb13aecc6a77f18414524d1e7db69aaa919b856a415e81acd79a58b069b2d5a8b12f61dc25f1f62c486805fab15f439232

  • C:\Users\Admin\AppData\Local\Temp\_MEI47362\_bz2.pyd

    Filesize

    87KB

    MD5

    92075c2759ac8246953e6fa6323e43fe

    SHA1

    6818befe630c2656183ea7fe735db159804b7773

    SHA256

    e7af6119b56ddd47fd0a909710f7163d7ef4822405fc138d24e6ce9de7a5022f

    SHA512

    7f3a4409859695f53291c96dd487bca2649815bad5f4610c2c6f92777411d39210e293d962573a20dfe73ea15331de7e6c18b017ae1d6f226387eab1fc1f586c

  • C:\Users\Admin\AppData\Local\Temp\_MEI47362\_ctypes.pyd

    Filesize

    131KB

    MD5

    2787764fe3056f37c79a3fc79e620172

    SHA1

    a64d1a047ba644d0588dc4288b74925ed72e6ed4

    SHA256

    41c593c960f3f89b1e1629c6b7bd6171fe306168f816bef02027332a263de117

    SHA512

    1dc5bb470be558c643a3f68e23423697384bc547b1192cd398dff640e28f7df85563bc87643cdcde9b8b4f880f272e13a673a018ae251e100bd99790f993afa0

  • C:\Users\Admin\AppData\Local\Temp\_MEI47362\_hashlib.pyd

    Filesize

    38KB

    MD5

    7808b500fbfb17c968f10ee6d68461df

    SHA1

    2a8e54037e7d03d20244fefd8247cf218e1d668f

    SHA256

    e2701f4e4a7556adab7415e448070289ba4fe047227f48c3a049d7c3154aff0b

    SHA512

    b4239e792141bcf924f61bfd46033934337079b245f423b34820d36c6599ca35ab06bc525acfff4cafa75e31975fcd0409dedd203377d642fc5dc55ec2c1fa27

  • C:\Users\Admin\AppData\Local\Temp\_MEI47362\_lzma.pyd

    Filesize

    251KB

    MD5

    ab582419629183e1615b76fc5d2c7704

    SHA1

    b78ee7e725a417bef50cca47590950e970eae200

    SHA256

    5a45f7cd517ad396a042bc2767ae73221dc68f934e828a9433249924a371ee5e

    SHA512

    3f38441dd0b88b486dafaa1e15d07f0ee467a362c1603071a2fa79de770fa061ced25ca790f0d3139f31178c719cc82ac88601262e2a0ca809708dfa3f6f76ca

  • C:\Users\Admin\AppData\Local\Temp\_MEI47362\_overlapped.pyd

    Filesize

    43KB

    MD5

    73ed0ee50db2ea98118f704e78d5e95e

    SHA1

    93d6cf61c8848e70f2afffc698f9718a18ad74ce

    SHA256

    009cadfd046eee91e183489edf6b8ad8562e5c9e851ef4ad0034b5d88201c942

    SHA512

    efd98f373f2309bf50139b35fb17e0d1355bed421c827224d8eba093f3005c3325cc55ef2853cd2d55e2873c9a73e3867bbe4d267f52c6fab5cddc8f2d076a97

  • C:\Users\Admin\AppData\Local\Temp\_MEI47362\_queue.pyd

    Filesize

    27KB

    MD5

    a48af48dd880c11673469c1ade525558

    SHA1

    01e9bbcd7eccaa6d5033544e875c7c20f8812124

    SHA256

    a98e9f330eeaf40ef516237ab5bc1efac1fc49ed321a128be78dd3fb8733e0a4

    SHA512

    a535dadb79c1ca10506858226442d1d1fb00e5d6f99afa6b539e2506a6627a7bd624a7ee2bc61f55c974113de80fd7a95e6c18e9402736d32d5099077ca1b913

  • C:\Users\Admin\AppData\Local\Temp\_MEI47362\_socket.pyd

    Filesize

    74KB

    MD5

    10cd16bb63862536570c717ffc453da4

    SHA1

    b3ef50d7ac4652b5c35f1d86a0130fb43dd5a669

    SHA256

    e002a1bd6fba44681d557b64d439585dba9820226e1c3da5a62628bbaa930ae3

    SHA512

    55ee581c4005901661efaf9aad6ea39b2b2e265579539d464d62e4209638567b3b9fdd945d0bed0a1047f977d374a5707a970c621ca289077e2d6c5aeca491b1

  • C:\Users\Admin\AppData\Local\Temp\_MEI47362\_ssl.pyd

    Filesize

    121KB

    MD5

    8b5af5ac31b6bde9023a4adc3e7f0ce1

    SHA1

    c5d7eaaed9be784227a0854bfb8a983058410a35

    SHA256

    7040d3712f31b7d11882ce8c907452fa725678b646b900f6868f43ab3e4ddab6

    SHA512

    499aa2321a2e5492c700513d63cf08fc12d3a430a5e9f5d865279919f6d7b74385b6767bbee63616f84b52d02070b16b2d4c3921163c42864f33e7b5331b1444

  • C:\Users\Admin\AppData\Local\Temp\_MEI47362\base_library.zip

    Filesize

    759KB

    MD5

    5cb31103b8c5e6ceaaa78e4f3f961e2d

    SHA1

    cb14e1205c62cc3e8e808259f51731864724c541

    SHA256

    eff3e9c4b1a960c3cdc4f3a85d416b93c4d34ba1f76f3008eaba369f7fafeecd

    SHA512

    42b2776e7c20919805594d4fc1d6446eeecc27a60154577568fdb04fc811250cc5410dd1afdf25c61e22c8ef3f4f77670b01e586317b810a3365a877b5f6bdb7

  • C:\Users\Admin\AppData\Local\Temp\_MEI47362\certifi\cacert.pem

    Filesize

    253KB

    MD5

    3dcd08b803fbb28231e18b5d1eef4258

    SHA1

    b81ea40b943cd8a0c341f3a13e5bc05090b5a72a

    SHA256

    de2fa17c4d8ae68dc204a1b6b58b7a7a12569367cfeb8a3a4e1f377c73e83e9e

    SHA512

    9cc7106e921fbcf8c56745b38051a5a56154c600e3c553f2e64d93ec988c88b17f6d49698bdc18e3aa57ae96a79ee2c08c584c7c4c91cc6ea72db3dca6ccc2f5

  • C:\Users\Admin\AppData\Local\Temp\_MEI47362\libcrypto-1_1.dll

    Filesize

    3.2MB

    MD5

    bf83f8ad60cb9db462ce62c73208a30d

    SHA1

    f1bc7dbc1e5b00426a51878719196d78981674c4

    SHA256

    012866b68f458ec204b9bce067af8f4a488860774e7e17973c49e583b52b828d

    SHA512

    ae1bdda1c174ddf4205ab19a25737fe523dca6a9a339030cd8a95674c243d0011121067c007be56def4eaeffc40cbdadfdcbd1e61df3404d6a3921d196dcd81e

  • C:\Users\Admin\AppData\Local\Temp\_MEI47362\libssl-1_1.dll

    Filesize

    670KB

    MD5

    fe1f3632af98e7b7a2799e3973ba03cf

    SHA1

    353c7382e2de3ccdd2a4911e9e158e7c78648496

    SHA256

    1ce7ba99e817c1c2d71bc88a1bdd6fcad82aa5c3e519b91ebd56c96f22e3543b

    SHA512

    a0123dfe324d3ebf68a44afafca7c6f33d918716f29b063c72c4a8bd2006b81faea6848f4f2423778d57296d7bf4f99a3638fc87b37520f0dcbeefa3a2343de0

  • C:\Users\Admin\AppData\Local\Temp\_MEI47362\psutil\_psutil_windows.cp37-win_amd64.pyd

    Filesize

    72KB

    MD5

    eb2e7580f823b00576880cada4526092

    SHA1

    9195525a1e9cbac344171dd5333f2df0852c890f

    SHA256

    3ee35d8a42d5951c8498246aa6d302bbffecea65a2fcaa78a069011c6f543d59

    SHA512

    aaaef52e15a61490d87c2c1e49713590b3bfb65229c4318fa51bee92b9440e1fd546bfe8773440b559a55a9525f51ed2bfc9996fb4de50476533db3d6f284b77

  • C:\Users\Admin\AppData\Local\Temp\_MEI47362\pyexpat.pyd

    Filesize

    194KB

    MD5

    02d615171b805cc573b28e17611f663f

    SHA1

    2e63b78316b4eae6ee1c25f1f10fbbb84ecef054

    SHA256

    e60b5cbdf7480db1fc829e05ce45703d43d5ba25fdf7fba21cca1d38b1f3b3a4

    SHA512

    b61cd3d16d1a192016a50342ae71fee8f764c4c156e275a320f74cc4ec65755c91c022231d09a76b59d6225960f5a930f1887003b1d6984beeb5a9648b045427

  • C:\Users\Admin\AppData\Local\Temp\_MEI47362\python37.dll

    Filesize

    3.6MB

    MD5

    c4e99d7375888d873d2478769a8d844c

    SHA1

    881e42ad9b7da068ee7a6d133484f9d39519ca7e

    SHA256

    12f26beb439ddf8d56e7544b06a0675d5da6670c02f8f9cede7aad1de71eb116

    SHA512

    a5b79a919f15cda2c295c8da923ffe5dd30408376e459669e4e376b9d4d504d43671518d7085352bb90c4ce4efc6d81c91ac6cedbdaa896f916d80f7346a695b

  • C:\Users\Admin\AppData\Local\Temp\_MEI47362\select.pyd

    Filesize

    26KB

    MD5

    39b7c056bca546778690b9922315f9ff

    SHA1

    5f62169c8de1f72db601d30b37d157478723859b

    SHA256

    9514b4c40c35396b1952a8acf805e993a3875b37370f44ef36ed33c7151412ef

    SHA512

    229538131d83299ea90652818c99972c1ee692c070e7fea9599420c99dd8ae75fb2367e9509aad23984fe0a8d21221a59bd57493b5cd1d6c7391c3c55d714e94

  • C:\Users\Admin\AppData\Local\Temp\_MEI47362\ucrtbase.dll

    Filesize

    983KB

    MD5

    e3cbcb26ee85737e70ce55d498fcaa38

    SHA1

    8dcdcf5e8d9b621a149163cc3f12d01fde1ef4ac

    SHA256

    8ab85c80c5d9ad3618fd86aa45a878bb5a5d7e449528c317a8239c33876c75b5

    SHA512

    eb85a84f0d7e4f65ab67869e56b68f8da72a570b9b2fd0ee28e9d3ea9a80b4d35352261213b0e26d9d7592e750a0870e7b62df69e948bc060b0bfe6cea9fb12d

  • C:\Users\Admin\AppData\Local\Temp\_MEI47362\unicodedata.pyd

    Filesize

    1.0MB

    MD5

    d2ab7f9a441bb139feeb0e11eb600371

    SHA1

    467aeb881fccd4a43a16f319635da81f05279cc6

    SHA256

    465ab1b24c39a5a5da9415c96740dfdb4d071b25a7a87e275841e1d66a57e88f

    SHA512

    cf8eaae07c176fab5ca54a3935ec2fd6933e3f2d0ca107bf60f1389f2258865d101685918c7a04802da2a97980747935f1b56b0da3d1db3a1ea282f74db0b6a0

  • C:\Users\Admin\AppData\Local\Temp\e_win.exe

    Filesize

    79KB

    MD5

    2298d910b2d34e870e0f561eda4dcfc6

    SHA1

    078b2cace5161e34aaaaeba6bfbe3f6259651f34

    SHA256

    bb845cf9c1674452a995f58b3971c04fd67a0a8d256288e58cb4454bb80a5efe

    SHA512

    6465216a71c116321a6e7d9e1746247cfe1c29a5897422f13ed55cfb3a0daa42ba673a7cc308bf5440c6bf5fb084d065a6b4aab84c11ca1d81fdf23c09cbfe33

  • C:\Users\Admin\AppData\Local\Temp\valorant-skin-cli.exe

    Filesize

    11.8MB

    MD5

    618f14f157f325c42d4ee192d218e704

    SHA1

    d7889120eeeb8bab7fc45e0391afdffcae4d681a

    SHA256

    f19ea07dc1e91fc2a19bffad3e0e7a0b3b76d05cc617bae40a43289691b9a190

    SHA512

    fe8d79303670d593670c32b804ebcfe905f0ce2f85e346e6972ec95591bd66b3b77def5657f7bbae49310df1b4e94897722c3035721463da77ebdaa5b66d4ee6

  • C:\Users\Admin\AppData\Roaming\valorant-skin-cli\config.json

    Filesize

    297B

    MD5

    570b1fdf399f507290125437e06b77e6

    SHA1

    660c6cdd4d6a257e7219f970a73c7a81d7509adc

    SHA256

    2d33a0d437b652881cf68883f1fe44f779e17c13ef32348b3d224890d9779b7e

    SHA512

    9414c42919e718da6e5e1648feeb9398a51b759e0d4ad51cafeeea0f1180a32d15fb4528711cd26234adc197e552e0c21715eb360cc041c2d47105dd6516b4b6

  • C:\Users\Admin\Desktop\How To Restore Your Files.txt

    Filesize

    259B

    MD5

    f026fb213f419a400ba83e1a69d26472

    SHA1

    821f1318d077065fe1a3fe2075f053f1191d5739

    SHA256

    b87c7d852c60b34e5986e2d41fb4f644df11f7350ef2272ad58a469e476d2bc1

    SHA512

    6929aa4dccef21718625513ab21c9e39599969d6350dadfa00747cc8bde302d2d7158df845686f1e607b2b05126697263982f6ab61e189781117c9329176e50e

  • memory/3600-17-0x0000000000400000-0x0000000001009000-memory.dmp

    Filesize

    12.0MB