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
    17-01-2025 02:16

General

  • Target

    85293162cc6633606dd460dc9b325bb4985af449488c7c5ac18ed58e8910daf3N.exe

  • Size

    2.5MB

  • MD5

    b93dd75f8653febd6440a0d864b6d980

  • SHA1

    8db8158d5c2824c64b632e5fc9293844ecead6b7

  • SHA256

    85293162cc6633606dd460dc9b325bb4985af449488c7c5ac18ed58e8910daf3

  • SHA512

    a1e60f8203c45cbd631c9bd655d723306fd87ac302965b70db341e7581131a3b4056218b4d4ef3f7c252550bfcccfef792d2a3b16f5d2c91295244cd0d4b4ef8

  • SSDEEP

    49152:3R/KpmZubPf2S8W2ILeWl+C1p9jWy5Snd0eigXNf:B/jtYLP1Sy5E0k

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 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\85293162cc6633606dd460dc9b325bb4985af449488c7c5ac18ed58e8910daf3N.exe
    "C:\Users\Admin\AppData\Local\Temp\85293162cc6633606dd460dc9b325bb4985af449488c7c5ac18ed58e8910daf3N.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:4484
    • C:\Users\Admin\AppData\Local\Temp\3582-490\85293162cc6633606dd460dc9b325bb4985af449488c7c5ac18ed58e8910daf3N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\85293162cc6633606dd460dc9b325bb4985af449488c7c5ac18ed58e8910daf3N.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:4952

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\85293162cc6633606dd460dc9b325bb4985af449488c7c5ac18ed58e8910daf3N.exe

    Filesize

    2.5MB

    MD5

    070b9cf95c31f65d78edb57d38bd9cc5

    SHA1

    e75c6abae80daf78dfe30ce7cbc2cb941af496ab

    SHA256

    54585ad7a36aaaf6ee4b32eb73ecdecca99aff0c7eeda1b894fc105275c3a7cb

    SHA512

    2aab4c0bf39fb45a2428ee98724b33fa434eceefb0923b0b33431d3a6d3d42cf1294b77b75fe11e05c4a516ebfeaa4a5a0c042eeebfe891b805ac3980ccf6915

  • memory/4484-97-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4484-98-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4484-100-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4952-11-0x0000000002690000-0x0000000002691000-memory.dmp

    Filesize

    4KB

  • memory/4952-96-0x0000000000400000-0x0000000000682000-memory.dmp

    Filesize

    2.5MB