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Analysis

  • max time kernel
    19s
  • max time network
    16s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    04/12/2024, 06:16

General

  • Target

    334431aabc8dcda0e7dba3ea718d0ac47a72927f0e926874b513efdb29ac4febN.exe

  • Size

    1.0MB

  • MD5

    ff7ecc061f797b525d567d5aad881620

  • SHA1

    9dafd7ec42ff260abc8d24735206038762839949

  • SHA256

    334431aabc8dcda0e7dba3ea718d0ac47a72927f0e926874b513efdb29ac4feb

  • SHA512

    0e00f343ac6f247862b58a9ab9606610c2e34c38b50be78ee4c906ebad66d01edc00a1a2339c7307fc8b94afd82eb4e2c06fcb972c989424754a6ac24ad9c370

  • SSDEEP

    12288:M6iDsy/RtABUHZoLDOBYHjnB4mgOWUXHZEuDHyUR8e9+na5/choU5xZKLUjR89+4:ydruukzv3ZEA8X9jeR

Malware Config

Signatures

  • Detect Neshta payload 3 IoCs
  • 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\334431aabc8dcda0e7dba3ea718d0ac47a72927f0e926874b513efdb29ac4febN.exe
    "C:\Users\Admin\AppData\Local\Temp\334431aabc8dcda0e7dba3ea718d0ac47a72927f0e926874b513efdb29ac4febN.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:2336
    • C:\Users\Admin\AppData\Local\Temp\3582-490\334431aabc8dcda0e7dba3ea718d0ac47a72927f0e926874b513efdb29ac4febN.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\334431aabc8dcda0e7dba3ea718d0ac47a72927f0e926874b513efdb29ac4febN.exe"
      2⤵
      • Executes dropped EXE
      PID:3060

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\MSOCache\ALLUSE~1\{90140~1\dwtrig20.exe

    Filesize

    547KB

    MD5

    cf6c595d3e5e9667667af096762fd9c4

    SHA1

    9bb44da8d7f6457099cb56e4f7d1026963dce7ce

    SHA256

    593e60cc30ae0789448547195af77f550387f6648d45847ea244dd0dd7abf03d

    SHA512

    ff4f789df9e6a6d0fbe12b3250f951fcf11e857906c65e96a30bb46266e7e1180d6103a03db2f3764e0d1346b2de7afba8259ba080057e4a268e45e8654dfa80

  • \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\334431aabc8dcda0e7dba3ea718d0ac47a72927f0e926874b513efdb29ac4febN.exe

    Filesize

    1009KB

    MD5

    ec5991f479e14a49af40f6180758994c

    SHA1

    bc1514b7ff874930cc7d4340f427679c247634b2

    SHA256

    dea800dc59302088ce982bed3a57458e40b559e7b8e77c1082cfac5c8b7b3b0d

    SHA512

    2850dabdd901489bca0002410ce27f2e2ac77a145b7108a66862d49c38696f8f2a90cd0de100ea434702e59367bceb0dbbfdff1529e919b93a76e74e23389220

  • memory/2336-82-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2336-84-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB