Analysis

  • max time kernel
    141s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    21-10-2024 21:04

General

  • Target

    3fda575299dfe1e58ffc253959b312013aea3280dff1e45206743a33b9ff75ac.exe

  • Size

    6.4MB

  • MD5

    303c9af0766d42e0ab9456e52cab77d1

  • SHA1

    04e77805e2418fc01e7bb62405e0340f46e524d7

  • SHA256

    3fda575299dfe1e58ffc253959b312013aea3280dff1e45206743a33b9ff75ac

  • SHA512

    27515a561cb18ae686d73253d86f48f8b668034a473c0616784f1d066e178d2881ea55a346443ccc0f5bd44f6887ece0577cc5c3e34bc8bad699fb22c0c86168

  • SSDEEP

    98304:NgK7LbOwQM00tb3+9tG3Ts4WinCBRD+gucgkFvVDZM9A3bh5101s4z555HozXaWw:L7msb883gXBRD+gfgkFH3T6s4Dizrnc

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.

  • 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 behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of SendNotifyMessage 4 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3fda575299dfe1e58ffc253959b312013aea3280dff1e45206743a33b9ff75ac.exe
    "C:\Users\Admin\AppData\Local\Temp\3fda575299dfe1e58ffc253959b312013aea3280dff1e45206743a33b9ff75ac.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:2620
    • C:\Users\Admin\AppData\Local\Temp\3582-490\3fda575299dfe1e58ffc253959b312013aea3280dff1e45206743a33b9ff75ac.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\3fda575299dfe1e58ffc253959b312013aea3280dff1e45206743a33b9ff75ac.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2228

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\3fda575299dfe1e58ffc253959b312013aea3280dff1e45206743a33b9ff75ac.exe

    Filesize

    6.3MB

    MD5

    75c01408663e26525d30a624cc0c00c4

    SHA1

    fc22476b1d631872aaa2f6a468745ddfb08c2059

    SHA256

    560959ef88362be74ace1c421b883c5679fa1e1ea341ed72b6e926cf451227df

    SHA512

    1b0674ce5c4bc4d367afdece77c5d3c0116f1858493f0d3cd7b801f1b010dbf36354a2312a0bc6f8a674de97041dd4ab67c247f5c3bb53955b531b36ffa02545

  • memory/2228-12-0x00000000002D0000-0x00000000002D1000-memory.dmp

    Filesize

    4KB

  • memory/2228-88-0x0000000004D40000-0x0000000004D80000-memory.dmp

    Filesize

    256KB

  • memory/2228-91-0x00000000002D0000-0x00000000002D1000-memory.dmp

    Filesize

    4KB

  • memory/2228-90-0x0000000000400000-0x0000000000A9A000-memory.dmp

    Filesize

    6.6MB

  • memory/2228-92-0x0000000004D40000-0x0000000004D80000-memory.dmp

    Filesize

    256KB

  • memory/2620-89-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2620-94-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB