Analysis

  • max time kernel
    92s
  • 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
    16-01-2025 18:00

General

  • Target

    4829907df072c3e2248835f8375971823210fa97bb1a871994cb5e0d1e49059eN.exe

  • Size

    3.1MB

  • MD5

    8ffd07557fb0b3f892e30f900cb6afb0

  • SHA1

    10264b488df86b2ca2a06e5a321720cb75a3c239

  • SHA256

    4829907df072c3e2248835f8375971823210fa97bb1a871994cb5e0d1e49059e

  • SHA512

    91452c2bf6e78bb0c36683eee0d1058158bd26aa9c6e4d054959772f079503376341e1fcdbc4ee755309c314608d3da9158d6f9b1b641d215fa4f055e8c8597f

  • SSDEEP

    49152:ZQVD8jdMUOyeEpIC7F/iw+6pdM9X376IbAMINhqhFN7f6LlGiFkcmHAgC9T3G:6VwB8E/iUdM9X3ucFN7f6zdMHi3G

Malware Config

Signatures

  • Detect Neshta payload 5 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 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\4829907df072c3e2248835f8375971823210fa97bb1a871994cb5e0d1e49059eN.exe
    "C:\Users\Admin\AppData\Local\Temp\4829907df072c3e2248835f8375971823210fa97bb1a871994cb5e0d1e49059eN.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:4188
    • C:\Users\Admin\AppData\Local\Temp\3582-490\4829907df072c3e2248835f8375971823210fa97bb1a871994cb5e0d1e49059eN.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\4829907df072c3e2248835f8375971823210fa97bb1a871994cb5e0d1e49059eN.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:3636

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\4829907df072c3e2248835f8375971823210fa97bb1a871994cb5e0d1e49059eN.exe

    Filesize

    3.1MB

    MD5

    4b41daf9ddda07604381c37d2f4e8d93

    SHA1

    5988a491b5558a243db35d980b9d1677fbe889af

    SHA256

    1babd328980432eb3841fb68d916184765456543120c65b319c9af9823588f2a

    SHA512

    39864fc1ace7f42278d6012e366ef767b26f401344e143c1e5dad85adcff1e63ecdcedd26a0f390225393a70ea55064c19567cd5d12ace22a45903dad44860a0

  • memory/3636-12-0x0000000000C30000-0x000000000171D000-memory.dmp

    Filesize

    10.9MB

  • memory/4188-96-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4188-97-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4188-98-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4188-100-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB