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Analysis

  • max time kernel
    75s
  • max time network
    18s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    17/11/2024, 19:23

General

  • Target

    d997bfdf3e557f77348736312e88f0f39d3cb359f8c6bce7bd82c73908bce045N.exe

  • Size

    465KB

  • MD5

    862e22ed53102f051e7c6d5e49305310

  • SHA1

    641876e8edeaca870ef15d986edeac78f664dd6e

  • SHA256

    d997bfdf3e557f77348736312e88f0f39d3cb359f8c6bce7bd82c73908bce045

  • SHA512

    626a01ae5fcd0d20e869675ff1b67080e4e6c935c3c42eab76fd3d1380dbe546eadf28ccf2cc70f4bfe05164c271a1353fce05c65c1530b7e5a6dbdaace50491

  • SSDEEP

    6144:Pul3L8RIqMmrQxYUDJzHRaR9bYLw5jMMYDct+Xp:k3LvJ81ORiNxMMYw+Xp

Malware Config

Signatures

  • Neshta

    Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

  • Neshta family
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 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 1 IoCs

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

  • Modifies registry class 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d997bfdf3e557f77348736312e88f0f39d3cb359f8c6bce7bd82c73908bce045N.exe
    "C:\Users\Admin\AppData\Local\Temp\d997bfdf3e557f77348736312e88f0f39d3cb359f8c6bce7bd82c73908bce045N.exe"
    1⤵
    • Loads dropped DLL
    • Modifies system executable filetype association
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:3068
    • C:\Users\Admin\AppData\Local\Temp\3582-490\d997bfdf3e557f77348736312e88f0f39d3cb359f8c6bce7bd82c73908bce045N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\d997bfdf3e557f77348736312e88f0f39d3cb359f8c6bce7bd82c73908bce045N.exe"
      2⤵
      • Executes dropped EXE
      PID:2740

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\MSOCache\ALLUSE~1\{90140~1\DW20.EXE

    Filesize

    859KB

    MD5

    754309b7b83050a50768236ee966224f

    SHA1

    10ed7efc2e594417ddeb00a42deb8fd9f804ed53

    SHA256

    acd32dd903e5464b0ecd153fb3f71da520d2e59a63d4c355d9c1874c919d04e6

    SHA512

    e5aaddf62c08c8fcc1ae3f29df220c5c730a2efa96dd18685ee19f5a9d66c4735bb4416c4828033661990604669ed345415ef2dc096ec75e1ab378dd804b1614

  • \PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE

    Filesize

    252KB

    MD5

    9e2b9928c89a9d0da1d3e8f4bd96afa7

    SHA1

    ec66cda99f44b62470c6930e5afda061579cde35

    SHA256

    8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

    SHA512

    2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

  • \Users\Admin\AppData\Local\Temp\3582-490\d997bfdf3e557f77348736312e88f0f39d3cb359f8c6bce7bd82c73908bce045N.exe

    Filesize

    424KB

    MD5

    afcb8d6a5e29e76d1e2d27be9b3ae783

    SHA1

    4a7220b55dfee2c2027a31cd3af7a9960b2cabee

    SHA256

    3ea5e09de323d4dc44d1a906e36d2c16146a07a42687972f55cedd16facd8c62

    SHA512

    bf02602fac0b566e6f157cb63ff9570ea7b90efe8cd55c187855bb7ffde8aa758afea1371ecb4855522455df3527c372c31a0ed911f1739896cc834c07836597

  • memory/3068-83-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3068-85-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB