Analysis

  • max time kernel
    94s
  • max time network
    140s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-11-2024 02:28

General

  • Target

    c391f8bc7c54b8ac5e9839b2b3982aaeeda03be34e12569202aa9a6ef3e749de.exe

  • Size

    1.2MB

  • MD5

    9f4c208d3be3184681489a318fa65a12

  • SHA1

    d440124ebf7da91ff4e17d8e3d858a18e1e9174b

  • SHA256

    c391f8bc7c54b8ac5e9839b2b3982aaeeda03be34e12569202aa9a6ef3e749de

  • SHA512

    cd473dbf61d65973eae8aeb7d0a9775ae35832f5a2f73a6c0a86db45ac8aed4189b48ed656572d41878bbbaf9cbf4cf78e105ecddad05b2e9a57a27e89aa9a8b

  • SSDEEP

    6144:k9qEDbKW7DL921B4425yxj6jvHJg596s0OEI1CHpDNvIkO/crrWuz0C9:/EDbKW7l75yQOEIKvIArN

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\c391f8bc7c54b8ac5e9839b2b3982aaeeda03be34e12569202aa9a6ef3e749de.exe
    "C:\Users\Admin\AppData\Local\Temp\c391f8bc7c54b8ac5e9839b2b3982aaeeda03be34e12569202aa9a6ef3e749de.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:5088
    • C:\Users\Admin\AppData\Local\Temp\3582-490\c391f8bc7c54b8ac5e9839b2b3982aaeeda03be34e12569202aa9a6ef3e749de.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\c391f8bc7c54b8ac5e9839b2b3982aaeeda03be34e12569202aa9a6ef3e749de.exe"
      2⤵
      • Executes dropped EXE
      PID:5052

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\c391f8bc7c54b8ac5e9839b2b3982aaeeda03be34e12569202aa9a6ef3e749de.exe

    Filesize

    1.1MB

    MD5

    5fe1d2d704549bb7c3163d72a6714f60

    SHA1

    22c969b2b573a7f08dbb1810dc532b363a1e1539

    SHA256

    cd163eaf4e3e998b13762cc09760db71be3a74eb13dbc2f2e4b7c709812436a4

    SHA512

    1a8fd8ec2fb047fcef011752897da9cd28955c58ac1edfdb8ce04efd111f8aef6c354e92315384c12345af16fc8b1190bfcdbfff2cc24c970ad749dc8f1a4e1c

  • memory/5052-12-0x00007FFD30FF3000-0x00007FFD30FF5000-memory.dmp

    Filesize

    8KB

  • memory/5052-13-0x0000024653E00000-0x0000024653F20000-memory.dmp

    Filesize

    1.1MB

  • memory/5088-97-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/5088-98-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/5088-99-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/5088-101-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB