Analysis

  • max time kernel
    92s
  • max time network
    44s
  • platform
    windows7_x64
  • resource
    win7-20220718-en
  • resource tags

    arch:x64arch:x86image:win7-20220718-enlocale:en-usos:windows7-x64system
  • submitted
    26-07-2022 22:31

General

  • Target

    5e3385a20d41acedb5a3b93b5a8c76a5.exe

  • Size

    620KB

  • MD5

    5e3385a20d41acedb5a3b93b5a8c76a5

  • SHA1

    c63b1e59b8c08887d0de48ba5149b165091d00f7

  • SHA256

    bb671dbc4bb59548908a3bb9b9bb67c07e059ae50b2d347d04e7786a2e4527e5

  • SHA512

    74abad81d3c5fa2aa3982b99f2cb9bdd1d8b4010bbcc0878f1901069f8872d9d95a10d629651e06a14ced382a81f570f5bdae692bf7467d36a22a39781159abb

Malware Config

Signatures

  • Detect Neshta payload 7 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 behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5e3385a20d41acedb5a3b93b5a8c76a5.exe
    "C:\Users\Admin\AppData\Local\Temp\5e3385a20d41acedb5a3b93b5a8c76a5.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1976
    • C:\Users\Admin\AppData\Local\Temp\5e3385a20d41acedb5a3b93b5a8c76a5.exe
      "{path}"
      2⤵
        PID:1392
      • C:\Users\Admin\AppData\Local\Temp\5e3385a20d41acedb5a3b93b5a8c76a5.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:1740

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      252KB

      MD5

      9e2b9928c89a9d0da1d3e8f4bd96afa7

      SHA1

      ec66cda99f44b62470c6930e5afda061579cde35

      SHA256

      8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

      SHA512

      2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

    • memory/1740-65-0x0000000000400000-0x000000000042B000-memory.dmp
      Filesize

      172KB

    • memory/1740-76-0x0000000000400000-0x000000000042B000-memory.dmp
      Filesize

      172KB

    • memory/1740-64-0x0000000000400000-0x000000000042B000-memory.dmp
      Filesize

      172KB

    • memory/1740-75-0x0000000000400000-0x000000000042B000-memory.dmp
      Filesize

      172KB

    • memory/1740-59-0x0000000000400000-0x000000000042B000-memory.dmp
      Filesize

      172KB

    • memory/1740-60-0x0000000000400000-0x000000000042B000-memory.dmp
      Filesize

      172KB

    • memory/1740-63-0x0000000000400000-0x000000000042B000-memory.dmp
      Filesize

      172KB

    • memory/1740-62-0x0000000000400000-0x000000000042B000-memory.dmp
      Filesize

      172KB

    • memory/1740-73-0x0000000000400000-0x000000000042B000-memory.dmp
      Filesize

      172KB

    • memory/1740-70-0x0000000000400000-0x000000000042B000-memory.dmp
      Filesize

      172KB

    • memory/1740-69-0x00000000004080E4-mapping.dmp
    • memory/1740-66-0x0000000000400000-0x000000000042B000-memory.dmp
      Filesize

      172KB

    • memory/1740-68-0x0000000000400000-0x000000000042B000-memory.dmp
      Filesize

      172KB

    • memory/1740-72-0x0000000000400000-0x000000000042B000-memory.dmp
      Filesize

      172KB

    • memory/1976-56-0x0000000000210000-0x000000000021A000-memory.dmp
      Filesize

      40KB

    • memory/1976-57-0x0000000005130000-0x00000000051B4000-memory.dmp
      Filesize

      528KB

    • memory/1976-55-0x0000000075A61000-0x0000000075A63000-memory.dmp
      Filesize

      8KB

    • memory/1976-58-0x0000000004890000-0x00000000048C6000-memory.dmp
      Filesize

      216KB

    • memory/1976-54-0x0000000000C40000-0x0000000000CE2000-memory.dmp
      Filesize

      648KB