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
    29-11-2024 15:45

General

  • Target

    8eccbdfe58136c1204dd65e3652ab772692a8830572bc644b98a222519ea35feN.exe

  • Size

    1.2MB

  • MD5

    60fbf0964f219a6433a709ccfccc78e0

  • SHA1

    ad6ef0a7c930ed245cdf50519e3a14fb2771c749

  • SHA256

    8eccbdfe58136c1204dd65e3652ab772692a8830572bc644b98a222519ea35fe

  • SHA512

    3afdecbf24af01d9448ea415b8d6fdb9391d31465100583d0a4a17f778211e68e0271ab56039b6fb4d80184e595e42ad3dacbac44bb67e73fbacd399a550f9c7

  • SSDEEP

    24576:bMSCt9nbAHkOLkBBk3UJzyS6m2NWSCt9nbAHkOLHz:b9Cnnb4kO8e3OqFNbCnnb4kODz

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).

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8eccbdfe58136c1204dd65e3652ab772692a8830572bc644b98a222519ea35feN.exe
    "C:\Users\Admin\AppData\Local\Temp\8eccbdfe58136c1204dd65e3652ab772692a8830572bc644b98a222519ea35feN.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:1172
    • C:\Users\Admin\AppData\Local\Temp\3582-490\8eccbdfe58136c1204dd65e3652ab772692a8830572bc644b98a222519ea35feN.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\8eccbdfe58136c1204dd65e3652ab772692a8830572bc644b98a222519ea35feN.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3228
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
        dw20.exe -x -s 884
        3⤵
        • System Location Discovery: System Language Discovery
        • Checks processor information in registry
        • Enumerates system info in registry
        • Suspicious use of AdjustPrivilegeToken
        PID:764

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\8eccbdfe58136c1204dd65e3652ab772692a8830572bc644b98a222519ea35feN.exe

    Filesize

    1.2MB

    MD5

    83654f98617c5a370752351be1465c7b

    SHA1

    b1f751b5fb5d375d71028a08b004d98f2da11a6c

    SHA256

    02e356cb25b3fd2bbc9ccd2ae00e825c1f3e82df54259a45b70a9273a8a5dac9

    SHA512

    0b5bab78c0c08fb34f5f5c9f66e587c10f2d4f304d326a9d0db05639321ee2bbea3fb196c501a61a333c24d6077f0e5c882876ae3fcd80d7150d2d8941c56fdb

  • memory/1172-105-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1172-106-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1172-108-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3228-12-0x0000000074242000-0x0000000074243000-memory.dmp

    Filesize

    4KB

  • memory/3228-13-0x0000000074240000-0x00000000747F1000-memory.dmp

    Filesize

    5.7MB

  • memory/3228-14-0x0000000074240000-0x00000000747F1000-memory.dmp

    Filesize

    5.7MB

  • memory/3228-21-0x0000000074240000-0x00000000747F1000-memory.dmp

    Filesize

    5.7MB