Analysis

  • max time kernel
    15s
  • max time network
    17s
  • platform
    windows7_x64
  • resource
    win7-20241023-en
  • resource tags

    arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
  • submitted
    24-11-2024 07:11

General

  • Target

    bda39fae1801c326f2b1d854ea88acac7a51a0eb69d16b17e9d76a1e75210749N.exe

  • Size

    6.2MB

  • MD5

    639a6fc9e9e7ec1e5a19787a848050a0

  • SHA1

    f0dd26b974a99af56f9f89f3b65ca549ee57942b

  • SHA256

    bda39fae1801c326f2b1d854ea88acac7a51a0eb69d16b17e9d76a1e75210749

  • SHA512

    ddaa2d7d0c2a76a25d6503d4279b192b4e25344edb320d148c4b94e16b583af77ed244fea1b6a9902a7a4c232b2a21e99efbf752952ff5094cc77cd231e67f99

  • SSDEEP

    49152:8GtlqaVwASOPqIU6ihY71+2ugiF4Q379IlY4ntvdPtqr1o6wvwYNXQNiMMFdN0UV:l9+aKu4avo8VYSQQWYvHaN3E36FNPR

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.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • 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 Internet Explorer settings 1 TTPs 11 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\bda39fae1801c326f2b1d854ea88acac7a51a0eb69d16b17e9d76a1e75210749N.exe
    "C:\Users\Admin\AppData\Local\Temp\bda39fae1801c326f2b1d854ea88acac7a51a0eb69d16b17e9d76a1e75210749N.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:2536
    • C:\Users\Admin\AppData\Local\Temp\3582-490\bda39fae1801c326f2b1d854ea88acac7a51a0eb69d16b17e9d76a1e75210749N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\bda39fae1801c326f2b1d854ea88acac7a51a0eb69d16b17e9d76a1e75210749N.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Modifies Internet Explorer settings
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of SetWindowsHookEx
      PID:2684

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\bda39fae1801c326f2b1d854ea88acac7a51a0eb69d16b17e9d76a1e75210749N.exe

    Filesize

    6.2MB

    MD5

    ac9df96f56737bf725a969e24b6b4cc8

    SHA1

    03c6652f20de1862f144c394f9a50cf813fe3caf

    SHA256

    1e3ac00cc4098d63365bfa06dfef45224d013104b696a6dc9c9db34cdb652280

    SHA512

    51499cc4ebd09bb943f758c96bad9dab444923e45abddfe70bc09c086f7c8160fcb7ad2de2e5eddebe5f183521569a1a045915a65aab41024522ff9ff4645099

  • memory/2536-91-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2536-93-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2684-13-0x0000000000210000-0x0000000000211000-memory.dmp

    Filesize

    4KB