Analysis

  • max time kernel
    121s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    23-01-2025 16:03

General

  • Target

    officedeploymenttool_11509-33604.exe

  • Size

    2.8MB

  • MD5

    b4bf5401ac999a46a265c92d5606a27c

  • SHA1

    18f917aac8f5380d280a25d0abfbd8207bc1ee96

  • SHA256

    ea7933f59d7a4ebe420c5c80cabea3ca183cd040f3d047360bdb0b71c2921844

  • SHA512

    fe3c40f237c669849641f0cf1d49d627bdab7b7399369900a49711d8036e080769da95a96f012b07f01731d536894982b2efa1d3620eb9cd08ab9c54cb35346d

  • SSDEEP

    49152:LpIsZSxQ0O+cAtWreLVZlZSiju16pGUbETEUNuTxgpXWFBhRvCKPFyAQ:LudTNcDGXuYVEQUk2+1C+FyAQ

Malware Config

Signatures

  • Detect Neshta payload 7 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 2 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\officedeploymenttool_11509-33604.exe
    "C:\Users\Admin\AppData\Local\Temp\officedeploymenttool_11509-33604.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:1668
    • C:\Users\Admin\AppData\Local\Temp\3582-490\officedeploymenttool_11509-33604.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\officedeploymenttool_11509-33604.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2072

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\officedeploymenttool_11509-33604.exe

    Filesize

    2.7MB

    MD5

    224301a7acd031d508619e40a1b92775

    SHA1

    8b3b09172e3d01ea8205abb14772d8e6aa36bdfa

    SHA256

    450f28e924cfe1931883ee7de2ea7252d0e03b770742258d4d9ced43718c3897

    SHA512

    98593d16c23918d68d994cc179627da06ac0b3f33d3d4b1f6965160c86a7ea0de68d0de850cf94181b7a3737eb6233c5230ccb35254fc45171c894482fcc6809

  • memory/1668-86-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1668-92-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1668-93-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1668-94-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1668-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1668-97-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB