Resubmissions

10/06/2023, 20:48

230610-zlyjpage81 8

10/06/2023, 20:47

230610-zk964age8z 6

Analysis

  • max time kernel
    149s
  • max time network
    137s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/06/2023, 20:48

General

  • Target

    zero.exe

  • Size

    398KB

  • MD5

    bd0a3c308a6d3372817a474b7c653097

  • SHA1

    5ed36132872be3d5d94627b89f15a7369f68fba1

  • SHA256

    d4c62215df74753371db33a19a69fccdc4b375c893a4b7f8b30172710fbd4cfa

  • SHA512

    86c53974da682c9e55a181cacc3ba19a9bfd8df488c536c175695f28f79bb586722f4d6b061aaceb9d0db91996dd0a7e288f413c7d2562fbc5b6a305f747368f

  • SSDEEP

    6144:tYcn3ge+gqzsSALff2TRLz1lTl8TFPUW+8sSZJMidVmXmVcXHU:ttQe+PzsfX2Tpz1daaWnVIgcE

Malware Config

Signatures

  • Modifies extensions of user files 6 IoCs

    Ransomware generally changes the extension on encrypted files.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops desktop.ini file(s) 2 IoCs
  • Drops file in Windows directory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\zero.exe
    "C:\Users\Admin\AppData\Local\Temp\zero.exe"
    1⤵
    • Modifies extensions of user files
    • Adds Run key to start application
    • Drops desktop.ini file(s)
    • Drops file in Windows directory
    PID:1664

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\Microsoft\SmsRouter\MessageStore\edbres00002.jrs.encrypt

    Filesize

    64KB

    MD5

    9a00d2e350f930d916049154b9b0c39a

    SHA1

    5d5ef318180eea994120acee4af54a6c10e5ad67

    SHA256

    1029aa71adf1860cf7224271c9c95e2aa8068e4d3518eb6b3a44b107159c9f26

    SHA512

    928c1eb78562308d2ea02169b9e8c1e16a1edc45eb35fbf354da7edbd73e3e2535b4788f124384e53b3f75e36c56d49292d07dfd8d83e3b8f0102f2e14ffa222

  • C:\ProgramData\Package Cache\{7DAD0258-515C-3DD4-8964-BD714199E0F7}v12.0.40660\packages\vcRuntimeAdditional_x86\vc_runtimeAdditional_x86.msi.encrypt

    Filesize

    140KB

    MD5

    ffae6475ef7fd3177fef7dbd4caed2b5

    SHA1

    18fc5e13151cfbca67a019c68cb61d8c5a56bce6

    SHA256

    12f0f109f5847566c0d2468b332dbd0f59082c58d493b3d9f857ad5421a519a8

    SHA512

    0d6db7323b7fa98e6d37a72439b9dbf88afb8ab5cc6e8ef75ca2e0eb0abd16351a8335cbcbb639287f3b13065338b08d02e941c296ef216035b38d70a225b634

  • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\shared_proto_db\CURRENT.encrypt

    Filesize

    32B

    MD5

    1892b67fb2e2075806a554ff4ee3cdc8

    SHA1

    d530d2a08c62227d48714d82341a476ce4e4ea7a

    SHA256

    1667efa73fa74b18e8d7307d63166caa39799ba1e112b4e02df74137b8794d08

    SHA512

    38588a3fbf62e93578f29e9f8aa0c9b98971b652598de23cfe7d55da63bcecc58155feb1c84710eaf4c22416d9767c7db28b3a243068e9c7a8bc72b2d203ab86

  • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\shared_proto_db\MANIFEST-000001.encrypt

    Filesize

    48B

    MD5

    8fc835eb508813d7708cf3d192eabfd8

    SHA1

    b9a699ae6831eb7093c626518003c946d57de96d

    SHA256

    4392097e4c4eaa30055724fae41d462b7b13617886469cfc27bab43b60249689

    SHA512

    bc546bd9b13dfb698a78a6c5f56be8e25b2ac34af489a45c8f8340c0e3f1a8ca6db57d075bc3519e48c5c59e5d6f5f01bacdf6c7056bb04f4e7b0491537e0518

  • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\ShaderCache\data_2.encrypt

    Filesize

    8KB

    MD5

    bfed0e7ad7285e32cc92304421afaed3

    SHA1

    8469abdae351d83ba173ea8ca3349d32b8ac1c35

    SHA256

    6d171f5bc5c0169ae6a413eedbdac15e0ecefe5b354ff8a84f84ea1671be068d

    SHA512

    9a4149896c5c85916f87e27128571d5e3f63771ef592f6f8ba44d10a8d0f4a7d68844a9a26976d9dd9cb09253e00238732b39826f074c4a23bd9563e35c03c3b

  • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\GrShaderCache\GPUCache\data_0.encrypt

    Filesize

    8KB

    MD5

    254151584c6890b2b051f6fc25513f3a

    SHA1

    61777c81d15a8d5246a235ad9fc315fbdd834c4b

    SHA256

    03414b7561eb5fc208fa26342ea3ca8e60870ef66c8a86a47f27311ff7adb3c1

    SHA512

    39ec107cfe4075d580ec636139572377a678d049970ebafe654de4a036feff87576cb083383ae9ac1010d16fcfbe8fe1fa08bc7c67a7a078fef54c93010558a3

  • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\GrShaderCache\GPUCache\data_1.encrypt

    Filesize

    264KB

    MD5

    2af1f660d960a109e2aaba34a19213c3

    SHA1

    e4d2ec67429423429c830df895307147e74886ea

    SHA256

    98ce33dfb7677b25a74e0d20287950a93dfec356d075fd991a6c3c12fb31b625

    SHA512

    4a68b9ddda00752d9292b712516be774fa3ffc530cfd941d5d2555578a1281e3ea0c53c4988b8b1cd837eda23f0ad1c5cb08d8fc9348d84b59d70472991c0262

  • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\GrShaderCache\GPUCache\data_3.encrypt

    Filesize

    8KB

    MD5

    d06ce0b89ae4bcdb9eea9c64f58311de

    SHA1

    bd37afdc4dc433c09aa95fb0b45a401170214ddc

    SHA256

    8dc7ddaa46b40cfe379cbcfc5e517b57e8002306489a99a12b07421ef13464b3

    SHA512

    bbf21e40f12637ec37560b2e5e206b02f7a90c84ccbc1799111a920a5ea2c357e1575515d87a8bb45bbf57ba2133ab5876369147581fbc9c5556688e14af0c4b

  • C:\Users\Admin\AppData\Local\Packages\Microsoft.AccountsControl_cw5n1h2txyewy\Settings\settings.dat.encrypt

    Filesize

    8KB

    MD5

    8806199d51f3d7388606cdd471a88afe

    SHA1

    e6d10abbb61c3d3a2d01afac3e0eb6e308aae32a

    SHA256

    4dceca35f4e74d3e7ea20fc076c57e775e944fb2e012208acd456563fca8d2d0

    SHA512

    48ab0d477d98df628b472e86ca4728eb63aab89aa14161d0067f9bb62d9b92e630ae19d269cf699f08f80257de650c873dd6f117ca98b4d0a907b2f5aa4023fc

  • C:\Users\Admin\AppData\Local\Temp\wctDD8E.tmp.encrypt

    Filesize

    63KB

    MD5

    b739f1f024a0b076b55cb9fd624df1ce

    SHA1

    95758b7da57e2e6319c214f753d3e239e493f332

    SHA256

    1ce89c379752579b9a506be45384354cb7d33c33ae547381002fc4b38a3b6a42

    SHA512

    83ad750989bd13936a96790a80c63f7acb36ad742a20eb15ebc4ee3bb6aa4fef8960e15562ba14bcd00ece23eab00b2d88fc707fdc6dab333cf2eb6747731566

  • C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\jesyn8dv.default-release\storage\permanent\chrome\idb\3561288849sdhlie.sqlite.encrypt

    Filesize

    48KB

    MD5

    47724d42b3cbf861ef0301ac95c705b9

    SHA1

    e5c84c3e67c3d8fc1d56826113d6315fa26f2955

    SHA256

    12632ed88713478f383b143315b5254abe3bfc78a9fc36a0d2700d5f7aad79a7

    SHA512

    0fdac5f95222c32ac8a4500e68ff63daec03f8918f52b4426efb2c9efb1d87a3f97e6143404df65d5cec1d1932cab0d81387b3fe45a4075d916faf73cee863c8

  • C:\Users\Admin\NTUSER.DAT.encrypt

    Filesize

    16B

    MD5

    870454b4fee9aa9142823d15685cd382

    SHA1

    c725d14ccfdebf0f78973de11ddedbe11e42e2c2

    SHA256

    a9b89a534669e0f5d97ea5b7671e2151c923fb994a57836791f4f8d300e7403b

    SHA512

    c56c5deaaf892e452730d456aa1ee73a2ae55663d8b0d3084499a6c535c3e8442a14f179002fb649095d6046c07bae99b3e4cd4bf364d06f24f199443d8a5efd

  • memory/1664-141-0x00000000014F0000-0x00000000014F8000-memory.dmp

    Filesize

    32KB

  • memory/1664-143-0x00000000016F0000-0x0000000001700000-memory.dmp

    Filesize

    64KB

  • memory/1664-149-0x00000000016F0000-0x0000000001700000-memory.dmp

    Filesize

    64KB

  • memory/1664-147-0x00000000016F0000-0x0000000001700000-memory.dmp

    Filesize

    64KB

  • memory/1664-146-0x00000000016F0000-0x0000000001700000-memory.dmp

    Filesize

    64KB

  • memory/1664-145-0x00000000016F0000-0x0000000001700000-memory.dmp

    Filesize

    64KB

  • memory/1664-144-0x00000000016F0000-0x0000000001700000-memory.dmp

    Filesize

    64KB

  • memory/1664-148-0x00000000016F0000-0x0000000001700000-memory.dmp

    Filesize

    64KB

  • memory/1664-142-0x000000001CC00000-0x000000001CC4C000-memory.dmp

    Filesize

    304KB

  • memory/1664-133-0x0000000000BB0000-0x0000000000C18000-memory.dmp

    Filesize

    416KB

  • memory/1664-140-0x000000001C9A0000-0x000000001CA3C000-memory.dmp

    Filesize

    624KB

  • memory/1664-139-0x000000001C400000-0x000000001C8CE000-memory.dmp

    Filesize

    4.8MB

  • memory/1664-138-0x000000001BE80000-0x000000001BF26000-memory.dmp

    Filesize

    664KB

  • memory/1664-135-0x000000001BBD0000-0x000000001BC12000-memory.dmp

    Filesize

    264KB

  • memory/1664-134-0x00000000016F0000-0x0000000001700000-memory.dmp

    Filesize

    64KB