Analysis

  • max time kernel
    79s
  • max time network
    42s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    13/10/2022, 21:16

General

  • Target

    f4b0970daa761c4f42e8caab9a0aba347c451a2eef2676d3d301c1b1112f830f.exe

  • Size

    916KB

  • MD5

    74dc74fd4666925c09a6317f4f5631bd

  • SHA1

    72063aad25216881a98deb0782e9cab3f4a508f3

  • SHA256

    f4b0970daa761c4f42e8caab9a0aba347c451a2eef2676d3d301c1b1112f830f

  • SHA512

    467a10e32272afd82523bc4c010470d2b84254bf2b875f33ca82c80e7a6676c6dfc67edb69f47d8588c3c377f6fcd9cd436835b446198679fd1d7fe86fb8cb4a

  • SSDEEP

    24576:N7ITc35NUXk4Rtk3E3SHHlPKTdT+CoPNS2F:5IW5aXk4SE36HlCTdTpcNS2F

Malware Config

Signatures

  • 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.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of web browsers 2 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). Likely ransomware behaviour.

  • Modifies registry class 1 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f4b0970daa761c4f42e8caab9a0aba347c451a2eef2676d3d301c1b1112f830f.exe
    "C:\Users\Admin\AppData\Local\Temp\f4b0970daa761c4f42e8caab9a0aba347c451a2eef2676d3d301c1b1112f830f.exe"
    1⤵
    • Modifies system executable filetype association
    • Loads dropped DLL
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:1592
    • C:\Users\Admin\AppData\Local\Temp\3582-490\f4b0970daa761c4f42e8caab9a0aba347c451a2eef2676d3d301c1b1112f830f.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\f4b0970daa761c4f42e8caab9a0aba347c451a2eef2676d3d301c1b1112f830f.exe"
      2⤵
      • Executes dropped EXE
      PID:980

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\3582-490\f4b0970daa761c4f42e8caab9a0aba347c451a2eef2676d3d301c1b1112f830f.exe

          Filesize

          875KB

          MD5

          1f7f0a8156c448816ef893cf5e6b0126

          SHA1

          0c68546665147016d44957a061067a1b63da8350

          SHA256

          f85ddf9a855dc56b50372932cd8f0aa26258ad32d26749459b725fe3dd330ddc

          SHA512

          405599f4b6ea282f337459218887252dd7d23051f05d5a957a8c85f9521d7a021c58e6f981ae8ba000f6b8072a2f72dfb601e597652c8b201bd844039cf6fa20

        • \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\f4b0970daa761c4f42e8caab9a0aba347c451a2eef2676d3d301c1b1112f830f.exe

          Filesize

          875KB

          MD5

          1f7f0a8156c448816ef893cf5e6b0126

          SHA1

          0c68546665147016d44957a061067a1b63da8350

          SHA256

          f85ddf9a855dc56b50372932cd8f0aa26258ad32d26749459b725fe3dd330ddc

          SHA512

          405599f4b6ea282f337459218887252dd7d23051f05d5a957a8c85f9521d7a021c58e6f981ae8ba000f6b8072a2f72dfb601e597652c8b201bd844039cf6fa20

        • memory/1592-54-0x0000000074FB1000-0x0000000074FB3000-memory.dmp

          Filesize

          8KB