Analysis

  • max time kernel
    75s
  • max time network
    20s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    04-01-2025 11:24

General

  • Target

    5b8ec89f5b089183a2e0b0040646590a62e197d319287d3a9cf6148b571e4500N.exe

  • Size

    160KB

  • MD5

    cce9a9111061a7296473b97c2caf37b0

  • SHA1

    2291cd644350fa77f8abf527906b70f4f75b4c2c

  • SHA256

    5b8ec89f5b089183a2e0b0040646590a62e197d319287d3a9cf6148b571e4500

  • SHA512

    67d67465dbcd9b28a131337c21504cc9dfce1ca21846af5880ea8e5063603d2ed0d2b24315ee6d87f7a0ca8e7449d5cd3e5b3bab4272fedac25353fb8223a919

  • SSDEEP

    3072:sr85C0XXRucat06j+qFl1mi98uTyEyvFUPZkUgAr/:k90X5at0rqFl1n98uTy3tFUH

Malware Config

Signatures

  • Detect Neshta payload 6 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 registry class 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5b8ec89f5b089183a2e0b0040646590a62e197d319287d3a9cf6148b571e4500N.exe
    "C:\Users\Admin\AppData\Local\Temp\5b8ec89f5b089183a2e0b0040646590a62e197d319287d3a9cf6148b571e4500N.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:3012
    • C:\Users\Admin\AppData\Local\Temp\3582-490\5b8ec89f5b089183a2e0b0040646590a62e197d319287d3a9cf6148b571e4500N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\5b8ec89f5b089183a2e0b0040646590a62e197d319287d3a9cf6148b571e4500N.exe"
      2⤵
      • Executes dropped EXE
      PID:2288

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\5b8ec89f5b089183a2e0b0040646590a62e197d319287d3a9cf6148b571e4500N.exe

    Filesize

    120KB

    MD5

    02c64e682f565549482ef633f0b09e91

    SHA1

    18a41e31cccd023ef55198a5b13971b0c7269e10

    SHA256

    b3a58e23a474f0773c26db9871b878b2fc49a0e61f80ed01efd3daebada7f8b3

    SHA512

    0e5d22d2ede94215c2474ec07e53e1aebb014df5dac60ec3161fd4054641e8a6208e18a3903b1de7b67b6953bfc77f05c8614bb6e2e391596916a03928fa1383

  • memory/3012-82-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3012-83-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3012-84-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3012-85-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3012-87-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB