Analysis

  • max time kernel
    41s
  • max time network
    19s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    03-11-2024 06:52

General

  • Target

    3135aba43160052d12f2ffcbc308165498bae93fc51fbac5ebd786f2f565f7e8N.exe

  • Size

    1.5MB

  • MD5

    85fb630993fdb447017d1f783f436dd0

  • SHA1

    f9cd14ff1c63b5296efbf50e0fa33d3c3cdec991

  • SHA256

    3135aba43160052d12f2ffcbc308165498bae93fc51fbac5ebd786f2f565f7e8

  • SHA512

    39b80588baedc8b346a490aa6e0e19d27b74fdf1ee3004f120ed6b7c734ce339ddd70d9724da28ca86335410794d8930229a77f1cee49934234c8e4646d9d79e

  • SSDEEP

    12288:2LEgR0ro/0EhcXAHjRYSN9bUlOr/oJfT9Pu0XejfQ1JRQ3Tzvx+nDIpnUB6CC:IEgRN/th3VelBPu0XUfWJms0pnh

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 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 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3135aba43160052d12f2ffcbc308165498bae93fc51fbac5ebd786f2f565f7e8N.exe
    "C:\Users\Admin\AppData\Local\Temp\3135aba43160052d12f2ffcbc308165498bae93fc51fbac5ebd786f2f565f7e8N.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:1048
    • C:\Users\Admin\AppData\Local\Temp\3582-490\3135aba43160052d12f2ffcbc308165498bae93fc51fbac5ebd786f2f565f7e8N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\3135aba43160052d12f2ffcbc308165498bae93fc51fbac5ebd786f2f565f7e8N.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:928

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    547KB

    MD5

    cf6c595d3e5e9667667af096762fd9c4

    SHA1

    9bb44da8d7f6457099cb56e4f7d1026963dce7ce

    SHA256

    593e60cc30ae0789448547195af77f550387f6648d45847ea244dd0dd7abf03d

    SHA512

    ff4f789df9e6a6d0fbe12b3250f951fcf11e857906c65e96a30bb46266e7e1180d6103a03db2f3764e0d1346b2de7afba8259ba080057e4a268e45e8654dfa80

  • C:\Users\Admin\AppData\Local\Temp\3582-490\3135aba43160052d12f2ffcbc308165498bae93fc51fbac5ebd786f2f565f7e8N.exe

    Filesize

    1.4MB

    MD5

    d203ecc638d1718909b1ad5b63deb004

    SHA1

    beb3e02dfe8947abb7f45ae8f7c214f3d8fea84f

    SHA256

    40245926bcef6b6a3b67eae7803cf3a39cc4173a3a0ef5380e216b53542c9a72

    SHA512

    291b910b4e63f19eaf141551f5506b85cf1cecf000d0b4271147c1d0960d4e1776551bedf0ea6ec7d089169e693397557fb4f5780034f8c49d75a9b755f8397c

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

    Filesize

    252KB

    MD5

    9e2b9928c89a9d0da1d3e8f4bd96afa7

    SHA1

    ec66cda99f44b62470c6930e5afda061579cde35

    SHA256

    8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

    SHA512

    2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

  • memory/928-12-0x0000000074B2E000-0x0000000074B2F000-memory.dmp

    Filesize

    4KB

  • memory/928-13-0x00000000009A0000-0x0000000000B16000-memory.dmp

    Filesize

    1.5MB

  • memory/928-14-0x0000000074B20000-0x000000007520E000-memory.dmp

    Filesize

    6.9MB

  • memory/928-29-0x0000000074B20000-0x000000007520E000-memory.dmp

    Filesize

    6.9MB

  • memory/1048-89-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1048-90-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1048-91-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1048-92-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1048-94-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB