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Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    28/12/2023, 22:58

General

  • Target

    fe5bef461729b918e129791db3d6aa05.exe

  • Size

    245KB

  • MD5

    fe5bef461729b918e129791db3d6aa05

  • SHA1

    337ae4b596dbbd468bc7941ede2c355a8cc13c14

  • SHA256

    38f7cb528dbd82b11c5baece671de76ba91c7c0cf3f7302800d17c782f9ab9b6

  • SHA512

    362c493ef89ebe4699a87f3e30a2e35c0bbfa4397bf3a6d22edbeeecf8aaedc8ba1ebbf8339966665efe8a21732722c1dad9b344a67f5e7b4bb9e4fab8d6b4cb

  • SSDEEP

    6144:h1OgDPdkBAFZWjadD4s5DB4ztxQ6sx5TBpiI80:h1OgLdaOOztSrBBR80

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 4 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Installs/modifies Browser Helper Object 2 TTPs 4 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

  • Enumerates physical storage devices 1 TTPs

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

  • NSIS installer 4 IoCs
  • Modifies registry class 63 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fe5bef461729b918e129791db3d6aa05.exe
    "C:\Users\Admin\AppData\Local\Temp\fe5bef461729b918e129791db3d6aa05.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1740
    • C:\Users\Admin\AppData\Local\Temp\7zS2839.tmp\507ff55a86954.exe
      .\507ff55a86954.exe /s
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Installs/modifies Browser Helper Object
      • Modifies registry class
      • System policy modification
      PID:2660

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\ProgramData\Vaudix\uninstall.exe

    Filesize

    48KB

    MD5

    602aa39f9ab3b6685bee71c67dc485c5

    SHA1

    69cd0d6f9ce55a5e5d3d3559d31422303dc6def1

    SHA256

    d8fb9c21b350a06449c7e6934a3c2d971d20851ce73938bbc5f79349f970721c

    SHA512

    3bb5a0bf89da8993ae2801b41f7644ec39fc418ac0553bc67ed4f36ad413f3c2237ff9bcdd4a1ca64ad546b30e6445d3f6f1fa3af0f34faf1841da306e81ea94

  • C:\Users\Admin\AppData\Local\Temp\7zS2839.tmp\[email protected]\bootstrap.js

    Filesize

    2KB

    MD5

    c968893ddabd723f1a6ad49233fb93cd

    SHA1

    7427d6d29fa266a066aefa60df1b35d49264338b

    SHA256

    1b41a2181906cc4816a7f4c9de12f2513b6ce44bd029259c675c65e69953da3e

    SHA512

    dd749be8749cb708f419371ab7d9f273311690132e86bf5b12f933519051f2c083a585c41838f9831a6292859d0383bd768cadeee2588bddaf5d667cdf11bbb7

  • C:\Users\Admin\AppData\Local\Temp\7zS2839.tmp\[email protected]\chrome.manifest

    Filesize

    116B

    MD5

    2b13b5bca0a4d3ef8934bf73f1fdef2b

    SHA1

    a6f07f36d089415f6a7c640702bbfb0428b98f9a

    SHA256

    177df5f240099f9ec82a0b72ec73daf48faaa74fb932fde81638238c568afa74

    SHA512

    2eba44d981f24918a70c652115c85926f27c38fb2a425846d254780d0245fd5b8884985f7fbb446d33be5dc3132abce19c950c4c7c0f0d8b90b7084b389c85fe

  • C:\Users\Admin\AppData\Local\Temp\7zS2839.tmp\[email protected]\content\bg.js

    Filesize

    8KB

    MD5

    b786af8d6862f447438e5d11d5f94957

    SHA1

    4ee5e3c9e8a41135574d989b13b1870371ef2ba6

    SHA256

    cfdc3501594921262c56b8d4359331e8f188a4cc3b266bd39c86992cc0358e2e

    SHA512

    824e513be2e8316d91c3b1f520da5989996cbbced847d32c3eb849d1aec1d3f71757b27e14699cfefc3737ee1b07067f13cf8195d7e5665167155460c13d2412

  • C:\Users\Admin\AppData\Local\Temp\7zS2839.tmp\[email protected]\content\zy.xul

    Filesize

    225B

    MD5

    8d001f4cacbca6acba015ceabdce87bf

    SHA1

    77fa78604b1a8dcd09170d7b735cb2dad9d32c25

    SHA256

    465893335adb2cb5330a060cf3cb75a2a3d9cdb8c23f4248e30de89a0e2bba4f

    SHA512

    8aa24800a38e2d9ead818b71884898ecc79c2276f13471256be1493c16ad633804a3d975b0d38f92070824c43eb86cf08cb71c43bbd43ee1d2fe4fb14de90e9a

  • C:\Users\Admin\AppData\Local\Temp\7zS2839.tmp\[email protected]\install.rdf

    Filesize

    701B

    MD5

    25ad1ee9fd7a5321c93ec6f28c03aa7b

    SHA1

    a22610a5e645f19c612aa3dccb27910179f3847b

    SHA256

    9fa9bb64bff0d00c64540e92230dbb4c987e4217bd51814ecd17f003d7e2fa30

    SHA512

    3f51dc756b39c76c913646b816da8255c0195965eaadf0e983f53a2e7f8ebf62dac8c97609773d3301a3da798e37306c8a024f0a990f59ea5d7ac0f2a1ef2166

  • C:\Users\Admin\AppData\Local\Temp\7zS2839.tmp\507ff55a86975.ocx

    Filesize

    126KB

    MD5

    d637295a8426c7c4a8e9ef3e584839a2

    SHA1

    55b64f53328498d22d269de2e65be2feeba7da00

    SHA256

    5cbd7f4b8f991ccab51cfc1fd0a5437013c5196f3c636632d691103aa3708adb

    SHA512

    f60f908b9f0efd4762255c9c71559bbd554714170262dd556353ddda55789d21cc3a8ade239cdf51da38dfa4e92714749c217095bccac19590ef8347ca501c8c

  • C:\Users\Admin\AppData\Local\Temp\7zS2839.tmp\507ff55a869ae.html

    Filesize

    4KB

    MD5

    92ba2e565780d4603c53659caaafdd4c

    SHA1

    cb1393688af619a9464644be77912acba02762a2

    SHA256

    0d00ce660e6fa1ac78d44a6334c1be889ff8772f9a73d2965ec5c73372a1b0e0

    SHA512

    5419fdbbe39dd614ccce42d7dbd5784edd6dbebf19990f5c26ea15206a539f667b09148e85f829a1608d42508d0028bb6a0d1f9341d235d846e33b5dad8d6e6e

  • C:\Users\Admin\AppData\Local\Temp\7zS2839.tmp\507ff55a869e7.js

    Filesize

    9B

    MD5

    99fa5d714d971a49b67de27e0d8871be

    SHA1

    d0621e846ea60fa8d0b2c8e622e495af49cd7359

    SHA256

    f560d76474380da948a0c5ab8682dc026822d9685268c592f315224b1b968bf6

    SHA512

    2fec19e4f2a974227922a7e057890141523ae73fbfa127f9e8cd00dff71b29abb93cb865c6d74ecf3df8bca440c558d4fbf2f80e82cc9636320ab5edb95ebad5

  • C:\Users\Admin\AppData\Local\Temp\7zS2839.tmp\mcfjkmemjdpfchboijeilbldplibibnp.crx

    Filesize

    7KB

    MD5

    16c532fb6ca95c71d481a3910082c1a0

    SHA1

    210f980020dbbfc223b9c036c12194e5df93a694

    SHA256

    8adc2fdf477d54d72c1b239752bad8e1ba03836580016bfe25dbda3cafa77ef2

    SHA512

    671b732a8ede7d86af5049778ba52a2c3932f584e8a644d8f91a59e716d25df1b63cf750ba33acc370668f55d161f4809ee30240fdaaa529ae46d265c1c4dbd6

  • C:\Users\Admin\AppData\Local\Temp\7zS2839.tmp\settings.ini

    Filesize

    968B

    MD5

    b1d696a0f2142816e3cb6fe610ae269e

    SHA1

    63fd5791d079fb127cb8cc4737e335b8a94dff2e

    SHA256

    c95a877194f595002d047b1d25d63649985b929849b5cc184b26df9aa8d96b98

    SHA512

    225a59e045eaa44e9e03a0a9c1d452e6a98b7946f18ea4e380a1331e1f5034fbf8d6d5a97a5e57517d32360d84eeec2155c5a8483f1ee8a9b98f7b66a4989d0f

  • \Users\Admin\AppData\Local\Temp\7zS2839.tmp\507ff55a86954.exe

    Filesize

    65KB

    MD5

    6fce522ef2543f1cd8812f45c8718ba6

    SHA1

    270c89c05963c0f24f976f6b75aa4d12ade4c837

    SHA256

    d75c34545066eb787ed671c6d4ce4f4c6267637518ca683dfefb79f95f14226b

    SHA512

    a0a486b95aeb9c059f23e639e16abdbfe94b041f33309b44e95743bf5a82f92d3c444c025b6c36a0dc296add3c2bc4f6affcf130014f16968be0afa8e0007880

  • \Users\Admin\AppData\Local\Temp\nsd28C6.tmp\UserInfo.dll

    Filesize

    4KB

    MD5

    7579ade7ae1747a31960a228ce02e666

    SHA1

    8ec8571a296737e819dcf86353a43fcf8ec63351

    SHA256

    564c80dec62d76c53497c40094db360ff8a36e0dc1bda8383d0f9583138997f5

    SHA512

    a88bc56e938374c333b0e33cb72951635b5d5a98b9cb2d6785073cbcad23bf4c0f9f69d3b7e87b46c76eb03ced9bb786844ce87656a9e3df4ca24acf43d7a05b