Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-07-2024 10:09

General

  • Target

    2024-07-25_f1f70ba64226076ff5ccc297301d7c93_avoslocker_wapomi.exe

  • Size

    1.5MB

  • MD5

    f1f70ba64226076ff5ccc297301d7c93

  • SHA1

    68cfbd7f5888c0a89671a350db95d7b7b9dc8e26

  • SHA256

    8c28fb5d64ea3cbbcb5da19eb30e6ec8f2acb4c16e0f935275117f49ec4b4b19

  • SHA512

    f2de772227274695756afae89fa9fdbeb8c313ca5f3a7f365cbb7c9d070ea7e001ac2c75f8063219ec0ff9d086b3000ca6e6d23e9f18b6aed9cd331c7a8e3809

  • SSDEEP

    24576:Mwpk4V9rRM1oDb+enGs2Q6E9ZBJRPHJTrFSJ84ufAQKF2fJmg:5pRc1OMcV/sJjAAQKYfYg

Malware Config

Extracted

Family

socelars

C2

https://sa-us-bucket.s3.us-east-2.amazonaws.com/jhvre24/

Signatures

  • Socelars

    Socelars is an infostealer targeting browser cookies and credit card credentials.

  • Socelars payload 3 IoCs
  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • ASPack v2.12-2.42 1 IoCs

    Detects executables packed with ASPack v2.12-2.42

  • Checks computer location settings 2 TTPs 5 IoCs

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

  • Executes dropped EXE 13 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Drops Chrome extension 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 1 IoCs
  • Checks system information in the registry 2 TTPs 2 IoCs

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

  • Drops file in System32 directory 2 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Kills process with taskkill 1 IoCs
  • Modifies data under HKEY_USERS 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 26 IoCs
  • Suspicious use of SendNotifyMessage 24 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-07-25_f1f70ba64226076ff5ccc297301d7c93_avoslocker_wapomi.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-07-25_f1f70ba64226076ff5ccc297301d7c93_avoslocker_wapomi.exe"
    1⤵
    • Drops Chrome extension
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4560
    • C:\Users\Admin\AppData\Local\Temp\hvDQNG.exe
      C:\Users\Admin\AppData\Local\Temp\hvDQNG.exe
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2728
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\57c35cd8.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        PID:812
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c taskkill /f /im chrome.exe
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1708
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /im chrome.exe
        3⤵
        • System Location Discovery: System Language Discovery
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:3268
    • C:\Program Files\Google\Chrome\Application\chrome.exe
      "C:\Program Files\Google\Chrome\Application\chrome.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Checks system information in the registry
      • Enumerates system info in registry
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:1356
      • C:\Program Files\Google\Chrome\Application\chrome.exe
        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Crashpad" --url=https://clients2.google.com/cr/report --annotation=channel= --annotation=plat=Win64 --annotation=prod=Chrome --annotation=ver=123.0.6312.106 --initial-client-data=0xf8,0xfc,0x100,0xd4,0x104,0x7ffa8171cc40,0x7ffa8171cc4c,0x7ffa8171cc58
        3⤵
        • Executes dropped EXE
        PID:712
      • C:\Program Files\Google\Chrome\Application\chrome.exe
        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --no-appcompat-clear --gpu-preferences=WAAAAAAAAADgAAAMAAAAAAAAAAAAAAAAAABgAAEAAAA4AAAAAAAAAAAAAAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAGAAAAAAAAAAYAAAAAAAAAAgAAAAAAAAACAAAAAAAAAAIAAAAAAAAAA== --field-trial-handle=1868,i,9665951439767109013,25819635492015305,262144 --variations-seed-version=20240708-180128.343000 --mojo-platform-channel-handle=1864 /prefetch:2
        3⤵
        • Executes dropped EXE
        PID:3700
      • C:\Program Files\Google\Chrome\Application\chrome.exe
        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --no-appcompat-clear --field-trial-handle=2136,i,9665951439767109013,25819635492015305,262144 --variations-seed-version=20240708-180128.343000 --mojo-platform-channel-handle=2188 /prefetch:3
        3⤵
        • Executes dropped EXE
        PID:60
      • C:\Program Files\Google\Chrome\Application\chrome.exe
        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --lang=en-US --service-sandbox-type=service --no-appcompat-clear --field-trial-handle=2248,i,9665951439767109013,25819635492015305,262144 --variations-seed-version=20240708-180128.343000 --mojo-platform-channel-handle=2200 /prefetch:8
        3⤵
        • Executes dropped EXE
        PID:4148
      • C:\Program Files\Google\Chrome\Application\chrome.exe
        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --no-appcompat-clear --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --field-trial-handle=3112,i,9665951439767109013,25819635492015305,262144 --variations-seed-version=20240708-180128.343000 --mojo-platform-channel-handle=3128 /prefetch:1
        3⤵
        • Checks computer location settings
        • Executes dropped EXE
        PID:1980
      • C:\Program Files\Google\Chrome\Application\chrome.exe
        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --no-appcompat-clear --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --field-trial-handle=3132,i,9665951439767109013,25819635492015305,262144 --variations-seed-version=20240708-180128.343000 --mojo-platform-channel-handle=3180 /prefetch:1
        3⤵
        • Checks computer location settings
        • Executes dropped EXE
        PID:4012
      • C:\Program Files\Google\Chrome\Application\chrome.exe
        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --no-appcompat-clear --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=7 --field-trial-handle=4544,i,9665951439767109013,25819635492015305,262144 --variations-seed-version=20240708-180128.343000 --mojo-platform-channel-handle=4532 /prefetch:1
        3⤵
        • Checks computer location settings
        • Executes dropped EXE
        PID:1136
      • C:\Program Files\Google\Chrome\Application\chrome.exe
        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.ProcessorMetrics --lang=en-US --service-sandbox-type=none --no-appcompat-clear --field-trial-handle=4732,i,9665951439767109013,25819635492015305,262144 --variations-seed-version=20240708-180128.343000 --mojo-platform-channel-handle=4892 /prefetch:8
        3⤵
        • Executes dropped EXE
        PID:3524
      • C:\Program Files\Google\Chrome\Application\chrome.exe
        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --lang=en-US --service-sandbox-type=service --no-appcompat-clear --field-trial-handle=4340,i,9665951439767109013,25819635492015305,262144 --variations-seed-version=20240708-180128.343000 --mojo-platform-channel-handle=5004 /prefetch:8
        3⤵
        • Executes dropped EXE
        PID:4280
      • C:\Program Files\Google\Chrome\Application\chrome.exe
        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --disable-gpu-sandbox --use-gl=disabled --gpu-vendor-id=4318 --gpu-device-id=140 --gpu-sub-system-id=0 --gpu-revision=0 --gpu-driver-version=10.0.19041.546 --no-appcompat-clear --gpu-preferences=WAAAAAAAAADoAAAMAAAAAAAAAAAAAAAAAABgAAEAAAA4AAAAAAAAAAAAAACEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAGAAAAAAAAAAYAAAAAAAAAAgAAAAAAAAACAAAAAAAAAAIAAAAAAAAAA== --field-trial-handle=1164,i,9665951439767109013,25819635492015305,262144 --variations-seed-version=20240708-180128.343000 --mojo-platform-channel-handle=5100 /prefetch:8
        3⤵
        • Executes dropped EXE
        • Drops file in System32 directory
        • Suspicious behavior: EnumeratesProcesses
        PID:3336
  • C:\Program Files\Google\Chrome\Application\123.0.6312.106\elevation_service.exe
    "C:\Program Files\Google\Chrome\Application\123.0.6312.106\elevation_service.exe"
    1⤵
    • Executes dropped EXE
    PID:3528
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s NgcSvc
    1⤵
      PID:4924

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Program Files\Google\Chrome\Application\123.0.6312.106\elevation_service.exe

      Filesize

      1.6MB

      MD5

      2c99645742665024db8e389c2870bcb9

      SHA1

      6e556ee19a2a1731ac56b69d0e83257e439a818f

      SHA256

      ab708ef464fa5e8222459d786512279840efa919b05e66b0f2c473d8db4becee

      SHA512

      25a7f8434e83341d9f8d68e2f8c7f088f2e84a707fc6db3f18bc1c098a2511380f92d8efde768f5113bc52734f640a08ba356f9a31d551da6ddf58d4884170a5

    • C:\Program Files\Google\Chrome\Application\chrome.exe

      Filesize

      2.6MB

      MD5

      c0e615c4c4f31cc9d9c8e1f7db1fd19e

      SHA1

      e561a25b4d70209d6f9a98fc6755b7bcbebbfad1

      SHA256

      bcbb6c63044144a41ced7051ddcd55e60439c72d2de9a230a4c5d5696ba5601d

      SHA512

      f345c22444c7e3e67fcf4d604b750a44a849881f173e1912ffc5526fc21c3ed9c03aa68a7f3f0c01f6793588fd183319824871fc9d118e4af03ee77a87ca2ae3

    • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\BrowsingTopicsState

      Filesize

      649B

      MD5

      5a0ee3453acd15d48b629646eae78add

      SHA1

      04619f9ef1784f2557b6acbeaca3c8963b4d9a23

      SHA256

      a2dd38c9a08eb2b734c0baecd78586c6ea35030ea52b6eeaec41806ad92db2c6

      SHA512

      caaa126be8bf5774ad2b77b8da643935665b24024147e023761a1477bc724dcfb42c451ed3ad1648fc728b7344868fb0305b9fbec48eda18fca8762acb15c78a

    • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\Network Persistent State

      Filesize

      1KB

      MD5

      00a37263d99891e9e6f74a95acd8715f

      SHA1

      921d7e304d1f456718fbe0d88ae8ce7fd4d3460d

      SHA256

      1a3ebb40e7a3ff2949f4cbee6f0f267dd3aa5b7f0d6f7f8fdf2790acec8706b0

      SHA512

      cf790b89b39f934726013b0873f6eb9da9e0b700ea3bc20bfbc75c0bf479272352248da45a147d49ed93df4d55af5b7c56eb941f5c192f032b091265239843dc

    • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\SCT Auditing Pending Reports

      Filesize

      2B

      MD5

      d751713988987e9331980363e24189ce

      SHA1

      97d170e1550eee4afc0af065b78cda302a97674c

      SHA256

      4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945

      SHA512

      b25b294cb4deb69ea00a4c3cf3113904801b6015e5956bd019a8570b1fe1d6040e944ef3cdee16d0a46503ca6e659a25f21cf9ceddc13f352a3c98138c15d6af

    • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\TransportSecurity

      Filesize

      356B

      MD5

      7fd149dd9a48d99b7e90e802f2bf15b1

      SHA1

      da52a766411776936e51106304e5b1756fee0c05

      SHA256

      63d0d9ae8b5a32b58843ddbeb81b8ac8ea5af8d39576ad8d11a740c785581603

      SHA512

      60732de0135dd989c98c12fe6fb8b062d646aaf1037f31b09292de6e7b68a3769e4fe2ef9e812b2de97514345e964172deb8de16f124ba1cdb69deeda7c251dc

    • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences

      Filesize

      9KB

      MD5

      2b2e89250bc20ea37aa0d1936e5b31d8

      SHA1

      cdd587b58a2b1ac670fb89c2334d03172f59bae5

      SHA256

      2af0e9ba5ae482d82ff96ad33736b021a1cfb3e093ba9294cf57644e4799a49b

      SHA512

      1977a8f1efce0b28086c714afbc629bfb09f428c4991104fe876a0a59b3c1290b394b89e1263cffb5e9987f2cffc868635c42e20ec7d4c6e78592afa23d4786e

    • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences

      Filesize

      8KB

      MD5

      47e2303aa73aa5ea8652f36fbffa53b3

      SHA1

      d4c1a4d622484de37f8a04dfaa55dec47070a088

      SHA256

      2d9973bfd17c83fe066e0335f047299aceee92af1dab6ec539ec9ed44c8b3235

      SHA512

      072e7d6449e1023f7dafd0f29b5ec2773fb4748bff9226478e7d8ca26d49e5709552b7b5e66cb7caf94f7183477203b71df25d0016daa867986749e2a8792d73

    • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences

      Filesize

      8KB

      MD5

      6ac8376ac67d2b9548428db8e0695ee5

      SHA1

      598a4b138a84ce96dbda5b658ff66205fdb697a2

      SHA256

      ec944d0cb7240cf5486166dafaf9894483e8ac3184dfec92271fdd2aff51fc2c

      SHA512

      721beb461ff2901a44b84d52fa9c5406374460bb941a28d5d9d7b4856f3e5409ca2c2943db0c7607011d1cfedfd360e501d963a132e0246e937c3a48568ac259

    • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences

      Filesize

      9KB

      MD5

      236680aabf019a9182cbfab19c44ab47

      SHA1

      e42d4ead012304060d9b88401cb1ff43589986c0

      SHA256

      5edaf44d23db6c85808593c646381a0be093320c723296f3b564299e1d4a1850

      SHA512

      607bcb90d6b623eac04eaf08d06d136d7403515ecdd984ded6addfc89ea604b166efdcfd807ed9f6e8e896a30454f8a98ea4e4074848e5295fe1a9596181918d

    • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Secure Preferences

      Filesize

      17KB

      MD5

      e7ebd8da77053af55ac38fca9cff88e0

      SHA1

      593253d191958cec8fb58a7d76063a336eeed14e

      SHA256

      06154ca1940a2b34cd85460d29e9dcee19fa71204fd73f15910dbeb2c9cc14dd

      SHA512

      305e867f256bfb0a0c098bd64ce1cb1cf1faababcb1c496e6910764f7106d14d09dc964e02055edd155318ed6623ac7a2f40ecb0033d0d8165c0d3fb1740f589

    • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Secure Preferences

      Filesize

      17KB

      MD5

      3773e29da7150b8613a694a95c85ab8b

      SHA1

      1cf2cce8715174488ec5d0e0fae6322a02823e25

      SHA256

      539d03e14c5abf93d1f7c74238a22dc800dc67b9c32d9ed4137729f96c75542c

      SHA512

      1e0890e24df161c265d21daf039caa1770a71e710dc61230e4331991569090ced358877d0de0b095983ebaa61e8fae6fbead7f2e42b921860c459d454a74dfdf

    • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State

      Filesize

      188KB

      MD5

      97e54dac039502c07812952a5b29b37b

      SHA1

      52b31c0e2fb5afac57f8f791992d93c41f2a4372

      SHA256

      833edfba441b4cb1dcd574c67025a74eaee48ef371c3937dd406770a543a0282

      SHA512

      a9fc465903ba43f52f9dc5ba39de3f70a726c45a7f795a1f9daf2c7217c10cb8e8892b68aa801431e67faa96f50bfb176756e64b74db13e1848528701c98194c

    • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State

      Filesize

      188KB

      MD5

      5b1e5d3555335abe426f575ea63730c2

      SHA1

      f3d16030cd6d6815d347901130ea79ab28c23a3d

      SHA256

      fcc83f864779d0430cba606ad9c320de25311737f944237739687f872d24d96a

      SHA512

      ac2f44317007eee6a5552227df27dbd9086b1af0e10b939483c4880f9b748703fca65dba1cfda6b21e6b302b616b0d368f783af621d90d6f7c65a62deddb86e5

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\MQYRE6E5\k2[1].rar

      Filesize

      4B

      MD5

      d3b07384d113edec49eaa6238ad5ff00

      SHA1

      f1d2d2f924e986ac86fdf7b36c94bcdf32beec15

      SHA256

      b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c

      SHA512

      0cf9180a764aba863a67b6d72f0918bc131c6772642cb2dce5a34f0a702f9470ddc2bf125c12198b1995c233c34b4afd346c54a2334c350a948a51b6e8b4e6b6

    • C:\Users\Admin\AppData\Local\Temp\57c35cd8.bat

      Filesize

      187B

      MD5

      383bada5452f18b24389fb6320886168

      SHA1

      e6d1803a72de910bfb9c6eee3f23e5bc6edeb789

      SHA256

      e39624859a9e0cb8348da75629fb0bab68a84c6a865a1f0c77fd556a3cc5e600

      SHA512

      e6bd5f63c1001c5696ac9184e6ba746ea8a5534d106ffa180c8e908614a126fb4b28f4aaef0e64a6548c37febf3082ec5884654d4abd30d18e96b94807458eaf

    • C:\Users\Admin\AppData\Local\Temp\5E027492.exe

      Filesize

      4B

      MD5

      20879c987e2f9a916e578386d499f629

      SHA1

      c7b33ddcc42361fdb847036fc07e880b81935d5d

      SHA256

      9f2981a7cc4d40a2a409dc895de64253acd819d7c0011c8e80b86fe899464e31

      SHA512

      bcdde1625364dd6dd143b45bdcec8d59cf8982aff33790d390b839f3869e0e815684568b14b555a596d616252aeeaa98dac2e6e551c9095ea11a575ff25ff84f

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

      Filesize

      15KB

      MD5

      f7d21de5c4e81341eccd280c11ddcc9a

      SHA1

      d4e9ef10d7685d491583c6fa93ae5d9105d815bd

      SHA256

      4485df22c627fa0bb899d79aa6ff29bc5be1dbc3caa2b7a490809338d54b7794

      SHA512

      e4553b86b083996038bacfb979ad0b86f578f95185d8efac34a77f6cc73e491d4f70e1449bbc9eb1d62f430800c1574101b270e1cb0eeed43a83049a79b636a3

    • \??\pipe\crashpad_1356_KWTPPGKCCSVXYRFW

      MD5

      d41d8cd98f00b204e9800998ecf8427e

      SHA1

      da39a3ee5e6b4b0d3255bfef95601890afd80709

      SHA256

      e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

      SHA512

      cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

    • memory/2728-5-0x0000000000FA0000-0x0000000000FA9000-memory.dmp

      Filesize

      36KB

    • memory/2728-47-0x0000000000FA0000-0x0000000000FA9000-memory.dmp

      Filesize

      36KB

    • memory/4560-0-0x00000000003B0000-0x0000000000531000-memory.dmp

      Filesize

      1.5MB

    • memory/4560-69-0x00000000003B0000-0x0000000000531000-memory.dmp

      Filesize

      1.5MB

    • memory/4560-49-0x00000000003B0000-0x0000000000531000-memory.dmp

      Filesize

      1.5MB