Analysis

  • max time kernel
    111s
  • max time network
    116s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-12-2024 22:33

General

  • Target

    4f7c6324012cd96621009476a4e2d0f5cff81036b1df15fc777d38949facedca.exe

  • Size

    5.7MB

  • MD5

    4679a5a468770cdf1e2bbcb578ab2545

  • SHA1

    308dc74ab011a35fd4d0deeac2420d7a7691af0a

  • SHA256

    4f7c6324012cd96621009476a4e2d0f5cff81036b1df15fc777d38949facedca

  • SHA512

    1f8682fe62448e5110503130758ff4ee14a2771fb8a2da7199f1e0a9b8d54c0feb787b7e18279f238b6f6582a63c19e7e535f284014a6a1626b42caded1aad12

  • SSDEEP

    49152:nvULOoOzpNyKrHdWf/0Fas4AimrU6OOOOOOAOOOOOOJ17aMJUBfKo:8ZKbhas4arROOOOOOAOOOOOOJ17a7v

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 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4f7c6324012cd96621009476a4e2d0f5cff81036b1df15fc777d38949facedca.exe
    "C:\Users\Admin\AppData\Local\Temp\4f7c6324012cd96621009476a4e2d0f5cff81036b1df15fc777d38949facedca.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:5048
    • C:\Users\Admin\AppData\Local\Temp\3582-490\4f7c6324012cd96621009476a4e2d0f5cff81036b1df15fc777d38949facedca.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\4f7c6324012cd96621009476a4e2d0f5cff81036b1df15fc777d38949facedca.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:856
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
        dw20.exe -x -s 796
        3⤵
        • System Location Discovery: System Language Discovery
        • Checks processor information in registry
        • Enumerates system info in registry
        • Suspicious use of AdjustPrivilegeToken
        PID:444

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\4f7c6324012cd96621009476a4e2d0f5cff81036b1df15fc777d38949facedca.exe

    Filesize

    5.7MB

    MD5

    1dade90a1b610ee5e0a01b2295a9e0d0

    SHA1

    281e9b5cab3d52bb787d7a5c70cccefed132eaff

    SHA256

    a4d5421944fd737bd1b33db8e42dea2ed7a120f3e794934bb21b8aef808462a1

    SHA512

    1e35ab3d0e3346cdc8e0ae8ab91c472173910e174c20fb92f0fad9364be46a183d05208a16a6d41bc86b11953466c5f22e7ff8c93171130161b482874be070e5

  • memory/856-12-0x0000000073932000-0x0000000073933000-memory.dmp

    Filesize

    4KB

  • memory/856-13-0x0000000073930000-0x0000000073EE1000-memory.dmp

    Filesize

    5.7MB

  • memory/856-14-0x0000000073930000-0x0000000073EE1000-memory.dmp

    Filesize

    5.7MB

  • memory/856-23-0x0000000073930000-0x0000000073EE1000-memory.dmp

    Filesize

    5.7MB

  • memory/5048-105-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/5048-106-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/5048-108-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB