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Analysis

  • max time kernel
    93s
  • max time network
    94s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/11/2024, 21:14

General

  • Target

    9e526328067d69188052989e6df4a1dd1126e209c9763fbe4268c7aa4041b68fN.exe

  • Size

    1.2MB

  • MD5

    0c514ae70d120fe7188a5e2a71ffc720

  • SHA1

    4d79a422caf26a654d43cd0f357284249261078f

  • SHA256

    9e526328067d69188052989e6df4a1dd1126e209c9763fbe4268c7aa4041b68f

  • SHA512

    9318994a961873df63acf50434620cca7d9b43c7fa4b079784a562cdc9d3f4aae3b2b7b138757d8fc4ad04eb583d34e8b26d36a50513aa11116e400da9c89f89

  • SSDEEP

    24576:yMV7Ct+TyBk+By4uPNB3C6llllmQlcukCACWVQ:yMV7CETyBk+By4u1llllHlNn2q

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
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 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).

  • Program crash 1 IoCs
  • 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 use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9e526328067d69188052989e6df4a1dd1126e209c9763fbe4268c7aa4041b68fN.exe
    "C:\Users\Admin\AppData\Local\Temp\9e526328067d69188052989e6df4a1dd1126e209c9763fbe4268c7aa4041b68fN.exe"
    1⤵
    • Checks computer location settings
    • 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:4928
    • C:\Users\Admin\AppData\Local\Temp\3582-490\9e526328067d69188052989e6df4a1dd1126e209c9763fbe4268c7aa4041b68fN.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\9e526328067d69188052989e6df4a1dd1126e209c9763fbe4268c7aa4041b68fN.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:212
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 212 -s 492
        3⤵
        • Program crash
        PID:4448
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 212 -ip 212
    1⤵
      PID:1548

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROTE~1.EXE

      Filesize

      86KB

      MD5

      3b73078a714bf61d1c19ebc3afc0e454

      SHA1

      9abeabd74613a2f533e2244c9ee6f967188e4e7e

      SHA256

      ded54d1fcca07b6bff2bc3b9a1131eac29ff1f836e5d7a7c5c325ec5abe96e29

      SHA512

      75959d4e8a7649c3268b551a2a378e6d27c0bfb03d2422ebeeb67b0a3f78c079473214057518930f2d72773ce79b106fd2d78405e8e3d8883459dcbb49c163c4

    • C:\Users\Admin\AppData\Local\Temp\3582-490\9e526328067d69188052989e6df4a1dd1126e209c9763fbe4268c7aa4041b68fN.exe

      Filesize

      1.1MB

      MD5

      a98dc5fdd5fcae711db87f3c6a60bfd8

      SHA1

      29edf626495fa9bf516de739dbfb71755a69af63

      SHA256

      0678ee5c48e1bd537505508558d9299a532be3855f5ba50e6abe6e9215f02483

      SHA512

      d285e5f99a30a3138de38d1666c2cf27801de089ca6a70f64e176db4cc33016cf400bc6585cc10dd10213adb1746b12f3e2ac560139c6dc9b7391dee6da993e7

    • memory/4928-95-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/4928-96-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/4928-98-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB