Analysis

  • max time kernel
    119s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20241023-en
  • resource tags

    arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
  • submitted
    18-11-2024 23:03

General

  • Target

    c065588fb4866bf64a51341b8ca959ea533a848742adc5993332fcd335018e0a.exe

  • Size

    181KB

  • MD5

    f8bb7ed0e0f407a36df55c321d59cd1d

  • SHA1

    0adfa0a98b8657ad2ee79fe3f95801dd9d258d76

  • SHA256

    c065588fb4866bf64a51341b8ca959ea533a848742adc5993332fcd335018e0a

  • SHA512

    f4060d68ea7f3c05c7d797cc4c597930325b8d72bf73c287cca823b7fbc8925957fb6cc733f7b7a4c5078640aad28c4383a7b76a20a8d555641af1a2d8591fdd

  • SSDEEP

    3072:sr85C8aEtHZugr7t4ILlCI+4TOHHSTsDGjm4ILlCI+4COHCy6:k98aEtHBHtoDr+bz

Malware Config

Signatures

  • Detect Neshta payload 4 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 Internet Explorer settings 1 TTPs 9 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c065588fb4866bf64a51341b8ca959ea533a848742adc5993332fcd335018e0a.exe
    "C:\Users\Admin\AppData\Local\Temp\c065588fb4866bf64a51341b8ca959ea533a848742adc5993332fcd335018e0a.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:2712
    • C:\Users\Admin\AppData\Local\Temp\3582-490\c065588fb4866bf64a51341b8ca959ea533a848742adc5993332fcd335018e0a.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\c065588fb4866bf64a51341b8ca959ea533a848742adc5993332fcd335018e0a.exe"
      2⤵
      • Executes dropped EXE
      • Modifies Internet Explorer settings
      • Suspicious use of SetWindowsHookEx
      PID:2632

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

  • C:\Users\Admin\AppData\Local\Temp\Cab5CE1.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Users\Admin\AppData\Local\Temp\Tar5DFD.tmp

    Filesize

    181KB

    MD5

    4ea6026cf93ec6338144661bf1202cd1

    SHA1

    a1dec9044f750ad887935a01430bf49322fbdcb7

    SHA256

    8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

    SHA512

    6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

  • \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\c065588fb4866bf64a51341b8ca959ea533a848742adc5993332fcd335018e0a.exe

    Filesize

    141KB

    MD5

    b38474365e272510ea8d7cc9d3c52b26

    SHA1

    95d2ab70f8325d5123c457b33ecb4639692c3738

    SHA256

    3acae0dc7fdf6fe579b1c69e97af7484d361d7d493d1bf12e6ca777980563cdb

    SHA512

    bd92a35d03dcf30439ef7f6d07d00b107e12d4f95ba9c1c94bf55c5bb9f2a7037585df36dd21b4d5d05356ff0b5b6e5ecaf30866ee234fd18ea074e15884f980

  • memory/2632-134-0x0000000022CE0000-0x0000000023486000-memory.dmp

    Filesize

    7.6MB

  • memory/2632-14-0x000007FEF56A0000-0x000007FEF608C000-memory.dmp

    Filesize

    9.9MB

  • memory/2632-34-0x000007FEF56A0000-0x000007FEF608C000-memory.dmp

    Filesize

    9.9MB

  • memory/2632-13-0x000007FEF56A0000-0x000007FEF608C000-memory.dmp

    Filesize

    9.9MB

  • memory/2632-12-0x0000000000C10000-0x0000000000C36000-memory.dmp

    Filesize

    152KB

  • memory/2632-11-0x000007FEF56A3000-0x000007FEF56A4000-memory.dmp

    Filesize

    4KB

  • memory/2632-161-0x000007FFFFEB0000-0x000007FFFFEC0000-memory.dmp

    Filesize

    64KB

  • memory/2632-196-0x000007FEF56A3000-0x000007FEF56A4000-memory.dmp

    Filesize

    4KB

  • memory/2632-197-0x000007FEF56A0000-0x000007FEF608C000-memory.dmp

    Filesize

    9.9MB

  • memory/2632-199-0x000007FEF56A0000-0x000007FEF608C000-memory.dmp

    Filesize

    9.9MB

  • memory/2712-198-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2712-200-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2712-202-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB