Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    02-01-2025 10:46

General

  • Target

    d54a85b7303ec61bb290106ae1c49fb5d0b543b76745c632e23cb801b1b98a68N.exe

  • Size

    219KB

  • MD5

    10b0c14b3bc8ed7550d9355b9f412a50

  • SHA1

    cda72cae2636501816675bf3495182194f74e585

  • SHA256

    d54a85b7303ec61bb290106ae1c49fb5d0b543b76745c632e23cb801b1b98a68

  • SHA512

    768760dce87aede531fcc579c8365d8c5e177c7d83bcacfe8e07f02520efd90d73491dd62b7d706f22b87e99f281b81fc3fca8bb32141634e10802d96cbd61ca

  • SSDEEP

    3072:sr85Cyah7um/B4R7SYL3ajOAUjpqzyKWtgftLCTHX3qzyrr85C:k9jum/BWX3ajORqzFW6fZCL3qzi9

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 9 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 registry class 1 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d54a85b7303ec61bb290106ae1c49fb5d0b543b76745c632e23cb801b1b98a68N.exe
    "C:\Users\Admin\AppData\Local\Temp\d54a85b7303ec61bb290106ae1c49fb5d0b543b76745c632e23cb801b1b98a68N.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:868
    • C:\Users\Admin\AppData\Local\Temp\3582-490\d54a85b7303ec61bb290106ae1c49fb5d0b543b76745c632e23cb801b1b98a68N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\d54a85b7303ec61bb290106ae1c49fb5d0b543b76745c632e23cb801b1b98a68N.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:3000
      • C:\Windows\system32\WerFault.exe
        C:\Windows\system32\WerFault.exe -u -p 3000 -s 104
        3⤵
        • Loads dropped DLL
        PID:1364

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\d54a85b7303ec61bb290106ae1c49fb5d0b543b76745c632e23cb801b1b98a68N.exe

    Filesize

    179KB

    MD5

    b3859d7cef6e8391f679ce1eb2e6ad70

    SHA1

    82a156556d137629ce038acf02414836c8144e02

    SHA256

    f5f2065c71de1be3ecd381b6e269cb315739479cbad313184668549cce2453d5

    SHA512

    f65eb545d76725e34e1fdbdf3111faab77ca4cb73d4725476448346612ac0cd1ab6e73bdfd741d71cb5a67356502aedfa5ef356ffd58f8f0f1e258921ca56926

  • memory/868-89-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/868-91-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB