Analysis

  • max time kernel
    57s
  • max time network
    150s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    19-08-2021 10:05

General

  • Target

    Euro_swift_pdf.exe

  • Size

    247KB

  • MD5

    113dce66c3dbdcd17f9d193c883e983e

  • SHA1

    0c9097e98f090d10597fdcac72f729fb76a219b2

  • SHA256

    b8344e9c1ee03f949c70959828a08e1f73f198d58e6721b95676d54a7e6cb6be

  • SHA512

    f8d95727089ae3f59f0bceca6ad43442cc9eba39d6db7096295b8af49d2ac63888c556445d3ee51b6043276e25eedbefad5e6a727a38dc1aca4455e75ec26c8e

Malware Config

Signatures

  • Detect Neshta Payload 1 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.

  • 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 55 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 behavior: MapViewOfSection 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Euro_swift_pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\Euro_swift_pdf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:396
    • C:\Users\Admin\AppData\Local\Temp\Euro_swift_pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\Euro_swift_pdf.exe"
      2⤵
      • Modifies system executable filetype association
      • Drops file in Program Files directory
      • Drops file in Windows directory
      • Modifies registry class
      PID:3424

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/396-115-0x0000000000E20000-0x0000000000E22000-memory.dmp

    Filesize

    8KB

  • memory/3424-114-0x00000000004080E4-mapping.dmp

  • memory/3424-116-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB