Analysis

  • max time kernel
    137s
  • max time network
    41s
  • platform
    windows7_x64
  • resource
    win7-20220715-en
  • resource tags

    arch:x64arch:x86image:win7-20220715-enlocale:en-usos:windows7-x64system
  • submitted
    26-07-2022 22:29

General

  • Target

    5ac3d3497a4f79a3117c4e5b9db33ed1.exe

  • Size

    856KB

  • MD5

    5ac3d3497a4f79a3117c4e5b9db33ed1

  • SHA1

    c158c51009630fbfe942a4e37a791e4cb841dadf

  • SHA256

    2863d59554f71daaca458ebf5f9d290771630f3945b54bef7a5cdc91ed963b6e

  • SHA512

    7be6ace465afbfc08e9a18b9bd8e75f14cc5e359e061748830ab4a29cc5816e3c73fbfa6baee440e7ee73887c4f3200f37a07564318e30bbbab4d452adc2edfa

Malware Config

Signatures

  • Detect Neshta payload 6 IoCs
  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • Neshta

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

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

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

  • Suspicious use of SetThreadContext 1 IoCs
  • 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). Likely ransomware behaviour.

  • Modifies registry class 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5ac3d3497a4f79a3117c4e5b9db33ed1.exe
    "C:\Users\Admin\AppData\Local\Temp\5ac3d3497a4f79a3117c4e5b9db33ed1.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1052
    • C:\Users\Admin\AppData\Local\Temp\5ac3d3497a4f79a3117c4e5b9db33ed1.exe
      "{path}"
      2⤵
      • Modifies system executable filetype association
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Drops file in Windows directory
      • Modifies registry class
      PID:1512

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    Filesize

    252KB

    MD5

    9e2b9928c89a9d0da1d3e8f4bd96afa7

    SHA1

    ec66cda99f44b62470c6930e5afda061579cde35

    SHA256

    8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

    SHA512

    2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

  • memory/1052-54-0x0000000000C80000-0x0000000000D5C000-memory.dmp

    Filesize

    880KB

  • memory/1052-55-0x0000000075F81000-0x0000000075F83000-memory.dmp

    Filesize

    8KB

  • memory/1052-56-0x0000000000210000-0x000000000021A000-memory.dmp

    Filesize

    40KB

  • memory/1052-57-0x0000000005950000-0x00000000059E2000-memory.dmp

    Filesize

    584KB

  • memory/1052-58-0x0000000000B50000-0x0000000000BA4000-memory.dmp

    Filesize

    336KB

  • memory/1512-63-0x0000000000400000-0x000000000042B000-memory.dmp

    Filesize

    172KB

  • memory/1512-62-0x0000000000400000-0x000000000042B000-memory.dmp

    Filesize

    172KB

  • memory/1512-60-0x0000000000400000-0x000000000042B000-memory.dmp

    Filesize

    172KB

  • memory/1512-64-0x0000000000400000-0x000000000042B000-memory.dmp

    Filesize

    172KB

  • memory/1512-65-0x0000000000400000-0x000000000042B000-memory.dmp

    Filesize

    172KB

  • memory/1512-66-0x0000000000400000-0x000000000042B000-memory.dmp

    Filesize

    172KB

  • memory/1512-68-0x0000000000400000-0x000000000042B000-memory.dmp

    Filesize

    172KB

  • memory/1512-69-0x00000000004080E4-mapping.dmp

  • memory/1512-70-0x0000000000400000-0x000000000042B000-memory.dmp

    Filesize

    172KB

  • memory/1512-72-0x0000000000400000-0x000000000042B000-memory.dmp

    Filesize

    172KB

  • memory/1512-73-0x0000000000400000-0x000000000042B000-memory.dmp

    Filesize

    172KB

  • memory/1512-59-0x0000000000400000-0x000000000042B000-memory.dmp

    Filesize

    172KB

  • memory/1512-75-0x0000000000400000-0x000000000042B000-memory.dmp

    Filesize

    172KB