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Analysis

  • max time kernel
    94s
  • max time network
    98s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26/11/2024, 21:14

General

  • Target

    fb56e0e42ba765db008be8d01581182751b2d3304c1535a25f39fc3d297cc8f2N.exe

  • Size

    489KB

  • MD5

    e3ef21e6986e6d6593bf02cfc7efe7f0

  • SHA1

    50369287f7cff3c378996962c5aa476b189c4c48

  • SHA256

    fb56e0e42ba765db008be8d01581182751b2d3304c1535a25f39fc3d297cc8f2

  • SHA512

    1e2b727a76cc54c6aab006de37828c40d2b5371d59fb0406316a1f4099ce3545181976c6a974b725e416a5c0b0236a7d130ba838f5b366b5cc60f0634c85689e

  • SSDEEP

    6144:k9dre64sO+uM2oO8/n0Nn+aKR2gptO9bfz9IStpM6m16zkCkg3i:Me64h+lznATCCzHtpI1KkCDi

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 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 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fb56e0e42ba765db008be8d01581182751b2d3304c1535a25f39fc3d297cc8f2N.exe
    "C:\Users\Admin\AppData\Local\Temp\fb56e0e42ba765db008be8d01581182751b2d3304c1535a25f39fc3d297cc8f2N.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:4696
    • C:\Users\Admin\AppData\Local\Temp\3582-490\fb56e0e42ba765db008be8d01581182751b2d3304c1535a25f39fc3d297cc8f2N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\fb56e0e42ba765db008be8d01581182751b2d3304c1535a25f39fc3d297cc8f2N.exe"
      2⤵
      • Executes dropped EXE
      PID:1664

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\fb56e0e42ba765db008be8d01581182751b2d3304c1535a25f39fc3d297cc8f2N.exe

    Filesize

    449KB

    MD5

    73f72761fc62dd1c4d681f1b3c51769c

    SHA1

    b8fc7769aade14d24444d89d2766f8f1f8fca861

    SHA256

    a06d4878557f82fb021fd315fd337eda49ac6b1664fc40ee76c7f26c4b73551f

    SHA512

    8009f5b908c5ead9d763446d7f617a8d00ead9265fce97acbfcb44df539f6feedc91a9574d9c3f8aaede7861ad6893c75ffec840c9da4afb438efe7120e657f2

  • memory/1664-38-0x0000000003A00000-0x0000000003B0B000-memory.dmp

    Filesize

    1.0MB

  • memory/1664-35-0x0000000003980000-0x00000000039CE000-memory.dmp

    Filesize

    312KB

  • memory/1664-15-0x0000000001350000-0x000000000147A000-memory.dmp

    Filesize

    1.2MB

  • memory/1664-18-0x0000000001AB0000-0x0000000001B4B000-memory.dmp

    Filesize

    620KB

  • memory/1664-19-0x0000000001B50000-0x0000000001CF1000-memory.dmp

    Filesize

    1.6MB

  • memory/1664-20-0x0000000001D00000-0x0000000001DAC000-memory.dmp

    Filesize

    688KB

  • memory/1664-16-0x0000000001480000-0x00000000017D5000-memory.dmp

    Filesize

    3.3MB

  • memory/1664-17-0x00000000019E0000-0x0000000001AAD000-memory.dmp

    Filesize

    820KB

  • memory/1664-24-0x0000000000E00000-0x0000000000E55000-memory.dmp

    Filesize

    340KB

  • memory/1664-26-0x0000000001880000-0x00000000018AE000-memory.dmp

    Filesize

    184KB

  • memory/1664-25-0x0000000002720000-0x0000000002B92000-memory.dmp

    Filesize

    4.4MB

  • memory/1664-28-0x00000000018B0000-0x00000000018C4000-memory.dmp

    Filesize

    80KB

  • memory/1664-40-0x0000000005320000-0x0000000005332000-memory.dmp

    Filesize

    72KB

  • memory/1664-39-0x0000000003D10000-0x0000000003D40000-memory.dmp

    Filesize

    192KB

  • memory/1664-13-0x0000000000EF0000-0x00000000011B9000-memory.dmp

    Filesize

    2.8MB

  • memory/1664-37-0x00000000039D0000-0x00000000039FC000-memory.dmp

    Filesize

    176KB

  • memory/1664-14-0x00000000011C0000-0x0000000001250000-memory.dmp

    Filesize

    576KB

  • memory/1664-34-0x00000000038E0000-0x000000000397E000-memory.dmp

    Filesize

    632KB

  • memory/1664-36-0x00000000033D0000-0x00000000033F7000-memory.dmp

    Filesize

    156KB

  • memory/1664-33-0x00000000033A0000-0x00000000033CB000-memory.dmp

    Filesize

    172KB

  • memory/1664-32-0x0000000003370000-0x0000000003392000-memory.dmp

    Filesize

    136KB

  • memory/1664-31-0x00000000017E0000-0x000000000187D000-memory.dmp

    Filesize

    628KB

  • memory/1664-30-0x0000000003330000-0x0000000003363000-memory.dmp

    Filesize

    204KB

  • memory/1664-27-0x0000000002BA0000-0x0000000003330000-memory.dmp

    Filesize

    7.6MB

  • memory/1664-21-0x0000000001DB0000-0x00000000024EF000-memory.dmp

    Filesize

    7.2MB

  • memory/1664-12-0x0000000000B10000-0x0000000000BCE000-memory.dmp

    Filesize

    760KB

  • memory/1664-29-0x0000000003410000-0x00000000038E0000-memory.dmp

    Filesize

    4.8MB

  • memory/1664-23-0x0000000002620000-0x0000000002720000-memory.dmp

    Filesize

    1024KB

  • memory/1664-22-0x00000000024F0000-0x000000000261A000-memory.dmp

    Filesize

    1.2MB

  • memory/4696-124-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4696-125-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4696-126-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4696-128-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB