Analysis

  • max time kernel
    122s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    30-10-2024 04:46

General

  • Target

    c88b83dedd36b8465e80957b5bb34c2dac6b96b25945ad345a44ebfadee104b5.exe

  • Size

    2.6MB

  • MD5

    f4f82190e99264985438423e80a85d71

  • SHA1

    1f4b6955d80985b94c4126b5e634a110b8617889

  • SHA256

    c88b83dedd36b8465e80957b5bb34c2dac6b96b25945ad345a44ebfadee104b5

  • SHA512

    1ab7a266a38784121fa53b83b73dc078cb3b25c7fb45ac0a235d9e6985df2153662606b6102114c1776f7991963d47c72a51c3a4878ef1e23ab9b3781c411101

  • SSDEEP

    49152:EQnoZzbQCfknw2Wllx7dP54O7p9kXpq8neAAYab5sTUyaOpWy/LTLvUs:EAoZzcCfkvWn354mp9kXjneAAYa/UTLv

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.

  • 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 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c88b83dedd36b8465e80957b5bb34c2dac6b96b25945ad345a44ebfadee104b5.exe
    "C:\Users\Admin\AppData\Local\Temp\c88b83dedd36b8465e80957b5bb34c2dac6b96b25945ad345a44ebfadee104b5.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:2344
    • C:\Users\Admin\AppData\Local\Temp\3582-490\c88b83dedd36b8465e80957b5bb34c2dac6b96b25945ad345a44ebfadee104b5.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\c88b83dedd36b8465e80957b5bb34c2dac6b96b25945ad345a44ebfadee104b5.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2172

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\c88b83dedd36b8465e80957b5bb34c2dac6b96b25945ad345a44ebfadee104b5.exe

    Filesize

    2.5MB

    MD5

    c2d9219649f93d2366f3a24a595ea3ab

    SHA1

    4c4ce354b1b927ef0ce8eadac1def5e2c18504e0

    SHA256

    4ceccbe3430b4e64ebb1625e8953244e3f3e845b4a563465039c9eaab37ba17f

    SHA512

    57d14c1275c7c9183f0155a74675b941b44bcd48eb7a472af318a434de0610b5ec748548c1c5b35620bffa0bc4aaf146d30659c85ee22ba48bba5818cdfca5d8

  • memory/2172-12-0x0000000000270000-0x0000000000271000-memory.dmp

    Filesize

    4KB

  • memory/2172-13-0x0000000000400000-0x00000000006D1000-memory.dmp

    Filesize

    2.8MB

  • memory/2344-86-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2344-88-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB