Analysis

  • max time kernel
    93s
  • max time network
    101s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-01-2025 19:42

General

  • Target

    314900fafee47adb5170d8d17cd5b85b57cc50743e1f9985359124a474b0b50eN.exe

  • Size

    178KB

  • MD5

    cc55f9f90ae4055b6756e81327be0600

  • SHA1

    eed65bf1024e21d86c53086a3a4a0daffbc97041

  • SHA256

    314900fafee47adb5170d8d17cd5b85b57cc50743e1f9985359124a474b0b50e

  • SHA512

    8bdbe07e60a59a769f5c579513035ddfe22de47c58a26f2a146c39851e4153caf7da052d58a005e45b97618e5827eb98e32b7d1851b04cf96f0597b9059051f6

  • SSDEEP

    3072:sr85Cn2n1A9HYqtDQkZ7owoE/rXzCrNRydN2M6BuoXzCrNRydN2M6Bu:k9n2e9RkXwoE/ANG2MNG2

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 2 IoCs
  • Loads dropped DLL 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 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\314900fafee47adb5170d8d17cd5b85b57cc50743e1f9985359124a474b0b50eN.exe
    "C:\Users\Admin\AppData\Local\Temp\314900fafee47adb5170d8d17cd5b85b57cc50743e1f9985359124a474b0b50eN.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:4436
    • C:\Users\Admin\AppData\Local\Temp\3582-490\314900fafee47adb5170d8d17cd5b85b57cc50743e1f9985359124a474b0b50eN.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\314900fafee47adb5170d8d17cd5b85b57cc50743e1f9985359124a474b0b50eN.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4384
      • C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe
        "C:\Users\Admin\AppData\Local\Temp\~nsuA.tmp\Un_A.exe" _?=C:\Users\Admin\AppData\Local\Temp\3582-490\
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3312

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\314900fafee47adb5170d8d17cd5b85b57cc50743e1f9985359124a474b0b50eN.exe

    Filesize

    137KB

    MD5

    f1a8fca940121fd6053ba21feb7a1f9d

    SHA1

    f90a0c3e0f0f5546d137e48d55294083e6e8bfc7

    SHA256

    43e8578ac1f4319a1254c5fd7cb41daf46a507abca3c1d085c4511e1c9bed7a2

    SHA512

    6d95f2f3bba9d52fd863d350a10dc4e92472156ffc0801fece3477e0b80c708f94dcca2e707ffce61a71f2449a85b3d4b3d2690e4f88f20d3b27486e7899bac7

  • C:\Users\Admin\AppData\Local\Temp\nso9CDE.tmp\nsDialogs.dll

    Filesize

    9KB

    MD5

    6c3f8c94d0727894d706940a8a980543

    SHA1

    0d1bcad901be377f38d579aafc0c41c0ef8dcefd

    SHA256

    56b96add1978b1abba286f7f8982b0efbe007d4a48b3ded6a4d408e01d753fe2

    SHA512

    2094f0e4bb7c806a5ff27f83a1d572a5512d979eefda3345baff27d2c89e828f68466d08c3ca250da11b01fc0407a21743037c25e94fbe688566dd7deaebd355

  • memory/4436-107-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4436-108-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4436-110-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB