Analysis

  • max time kernel
    103s
  • max time network
    143s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250314-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/04/2025, 08:33

General

  • Target

    2025-04-07_c0e184505b8b0a04aaf28ea970ad02a9_black-basta_hijackloader_luca-stealer_neshta.exe

  • Size

    5.8MB

  • MD5

    c0e184505b8b0a04aaf28ea970ad02a9

  • SHA1

    faa8992e804b3cd4fbfcee1b6c919388cb322011

  • SHA256

    1e420e5baadbba4d35c355869f50d7f46bbc49c2d966577e8c3739b94ed78759

  • SHA512

    8d95955128d171c576097181a8b5665afce4978cb0acd80b0cf07e1e1ea25027c2d79418cb2bdeb9018f75bcb2fb77c2497bae201ec6ae53c306ae8fe2e9b4ab

  • SSDEEP

    98304:C6666666666666666666666666666666x666666666666666fwwwwwwwwwwwwwwk:DzNF8IcT48qhFpuj05NLuw

Malware Config

Signatures

  • Detect Neshta payload 4 IoCs
  • Meduza

    Meduza is a crypto wallet and info stealer written in C++.

  • Meduza Stealer payload 1 IoCs
  • Meduza family
  • 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 2 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 3 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 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2025-04-07_c0e184505b8b0a04aaf28ea970ad02a9_black-basta_hijackloader_luca-stealer_neshta.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-04-07_c0e184505b8b0a04aaf28ea970ad02a9_black-basta_hijackloader_luca-stealer_neshta.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:5416
    • C:\Users\Admin\AppData\Local\Temp\3582-490\2025-04-07_c0e184505b8b0a04aaf28ea970ad02a9_black-basta_hijackloader_luca-stealer_neshta.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\2025-04-07_c0e184505b8b0a04aaf28ea970ad02a9_black-basta_hijackloader_luca-stealer_neshta.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4924
      • C:\Users\Admin\AppData\Local\Temp\3582-490\2025-04-07_c0e184505b8b0a04aaf28ea970ad02a9_black-basta_hijackloader_luca-stealer_neshta.exe
        C:\Users\Admin\AppData\Local\Temp\3582-490\2025-04-07_c0e184505b8b0a04aaf28ea970ad02a9_black-basta_hijackloader_luca-stealer_neshta.exe --type=crashpad-handler /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Citrix\CitrixEnterpriseBrowser\User Data\Crashpad" --annotation=plat=Win32 "--annotation=prod=Citrix Enterprise Browser" --annotation=ver=131.1.1.37 --initial-client-data=0x2a4,0x2a8,0x2ac,0x268,0x2b0,0xedcfec,0xedcff8,0xedd004
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:2644

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

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\2025-04-07_c0e184505b8b0a04aaf28ea970ad02a9_black-basta_hijackloader_luca-stealer_neshta.exe

    Filesize

    5.8MB

    MD5

    032899fac5ca8c7f2ef4063df3453be4

    SHA1

    38dca566272b0005bbac387f29e1c0070093d331

    SHA256

    119f3fa7d475a789e5a3584454958aefccfd5e3df3f952cff7cb108dae6f974d

    SHA512

    6e6205b0347002a7560d412a849c415eec90f78d62068bba06df8004bf434f58f3ba6c31077e650ec74ecc600f03979e139b6f692f746f696929a7f17d966466

  • memory/5416-138-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/5416-139-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/5416-141-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB