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
    30-12-2024 15:10

General

  • Target

    fea4537139df206693d4c1f88ccd74df29a2f64f451682ca9969ed1acb39fd8bN.exe

  • Size

    579KB

  • MD5

    c11000af568e6fe625ba10780b7fb490

  • SHA1

    e445ca8515691d252ade786e8ce2fef8e897a72c

  • SHA256

    fea4537139df206693d4c1f88ccd74df29a2f64f451682ca9969ed1acb39fd8b

  • SHA512

    49bd8106cbe34dc9fd04e1c009592bffd07fceaca73230141e5451cfedfd119369632eb439d8afd1c30a8ac4527ad934a90936a8fe08673900d4a8d57b3e6683

  • SSDEEP

    12288:ITxv2CoT3XUfYdsRJYEwtdeWtCgooPS09AoPMA:Idv2rdsRJYld9lPAoPMA

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 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\fea4537139df206693d4c1f88ccd74df29a2f64f451682ca9969ed1acb39fd8bN.exe
    "C:\Users\Admin\AppData\Local\Temp\fea4537139df206693d4c1f88ccd74df29a2f64f451682ca9969ed1acb39fd8bN.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:1324
    • C:\Users\Admin\AppData\Local\Temp\3582-490\fea4537139df206693d4c1f88ccd74df29a2f64f451682ca9969ed1acb39fd8bN.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\fea4537139df206693d4c1f88ccd74df29a2f64f451682ca9969ed1acb39fd8bN.exe"
      2⤵
      • Executes dropped EXE
      PID:2264

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\fea4537139df206693d4c1f88ccd74df29a2f64f451682ca9969ed1acb39fd8bN.exe

    Filesize

    539KB

    MD5

    93fae245f46d7c8215db4439b7f903f3

    SHA1

    09c13c3bcbd3f8741ef54817fbb2b26e887d9538

    SHA256

    c03d31100a573964d7eae1f62510870372c0109d441b78aa7b30a1ffa9e77a5c

    SHA512

    f521d0e60ea93f4ef9b4a516266cd8768dc23e40d2416ddad2feb25c790f0f5c036b61066075349b59a2fd49ff7889e8486e2eefeefae9e6c5c6492cfa47a2d3

  • memory/1324-97-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1324-98-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1324-100-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB