Analysis

  • max time kernel
    41s
  • max time network
    18s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    07-01-2025 05:47

General

  • Target

    84fb245d6a7ebd896ba065a70eb921b8fe80cc5307594f4b8bad649590ffb6d3N.exe

  • Size

    146KB

  • MD5

    1d7939f869ada3775c93ac247b80f400

  • SHA1

    d9f8e860b17d4e6279f8dd528b676122f0649eed

  • SHA256

    84fb245d6a7ebd896ba065a70eb921b8fe80cc5307594f4b8bad649590ffb6d3

  • SHA512

    eed84a33a25d08f2238e7e992f5d8d8a1b835abf346d58dd6aba4339697462c5b19c88ba23414e4cfd6742b9d69d4b5b864eebe019d8c23ffe78979397badb2e

  • SSDEEP

    3072:sr85CkkbAYn2GgYlBYN2fHYTo+NXt8wDSRUTT:k9xbAMpgY3gTb8DRUTT

Malware Config

Signatures

  • Detect Neshta payload 6 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\84fb245d6a7ebd896ba065a70eb921b8fe80cc5307594f4b8bad649590ffb6d3N.exe
    "C:\Users\Admin\AppData\Local\Temp\84fb245d6a7ebd896ba065a70eb921b8fe80cc5307594f4b8bad649590ffb6d3N.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:2488
    • C:\Users\Admin\AppData\Local\Temp\3582-490\84fb245d6a7ebd896ba065a70eb921b8fe80cc5307594f4b8bad649590ffb6d3N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\84fb245d6a7ebd896ba065a70eb921b8fe80cc5307594f4b8bad649590ffb6d3N.exe"
      2⤵
      • Executes dropped EXE
      PID:1824

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\84fb245d6a7ebd896ba065a70eb921b8fe80cc5307594f4b8bad649590ffb6d3N.exe

    Filesize

    105KB

    MD5

    2b7a296efdebd5e062776b1ecd94460b

    SHA1

    ae6505fc60217c6d7bbf70ba929e9c39ace46e9e

    SHA256

    8f1e6d342268b9fdd0a207fbf158bfe454d9de5aeb61f0e5a1f1217803a0022d

    SHA512

    2f5e852b3c44ca7a15994461ce1a00d627339d1642314780d6f23fce70d25127dad30336eff9c59b102cc77106d05868dc4502005afe2f01c1ac755c7859430d

  • memory/2488-83-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2488-84-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2488-85-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2488-86-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2488-88-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB