Analysis

  • max time kernel
    94s
  • max time network
    95s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-12-2024 19:15

General

  • Target

    7aa79f0e14c9cb159264bb1bbcfec5702125a21f8718f8cdd1de0aa36b3267daN.exe

  • Size

    7.1MB

  • MD5

    d58df26275832d2210f044544c896c70

  • SHA1

    65354a0834a6b5a5ce0d84faff91dffa153d2abf

  • SHA256

    7aa79f0e14c9cb159264bb1bbcfec5702125a21f8718f8cdd1de0aa36b3267da

  • SHA512

    a2aa762f192ca2e3f9cfc98c8bb0e54220446cd97949be6f84087dcb312ff427d793156d719fd107613375bebf9592fe7368820cb446885d7448f4d8a39eae6f

  • SSDEEP

    196608:4fb2MSp3Tt6uCGAd1lUA2SPeuplxm2MSp3Tt6uCGAd1lUA2SPeuplx8fKu2MSp3w:AYt6uCGOlUpSPeupXXt6uCGOlUpSPeuY

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.

  • 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 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7aa79f0e14c9cb159264bb1bbcfec5702125a21f8718f8cdd1de0aa36b3267daN.exe
    "C:\Users\Admin\AppData\Local\Temp\7aa79f0e14c9cb159264bb1bbcfec5702125a21f8718f8cdd1de0aa36b3267daN.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:1120
    • C:\Users\Admin\AppData\Local\Temp\3582-490\7aa79f0e14c9cb159264bb1bbcfec5702125a21f8718f8cdd1de0aa36b3267daN.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\7aa79f0e14c9cb159264bb1bbcfec5702125a21f8718f8cdd1de0aa36b3267daN.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:1476
      • C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exe
        dw20.exe -x -s 792
        3⤵
        • Checks processor information in registry
        • Enumerates system info in registry
        • Suspicious use of AdjustPrivilegeToken
        PID:4168

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\7aa79f0e14c9cb159264bb1bbcfec5702125a21f8718f8cdd1de0aa36b3267daN.exe

    Filesize

    7.1MB

    MD5

    537c6ecd9f6960b21db1656c7ab558ab

    SHA1

    39042f470343c18665d7123b3460c8dc491bdbe1

    SHA256

    0e5f02d22927c24f91e1242ed628112b72e2058c382cde06bc365d5425b79296

    SHA512

    fa8f952c747946cf85b3829c27ea25e45266f0b1556dffecd214b4f0f4361b83cc42cc7909279051348a98a4cee5e3f79d62bc6e3a6a578b8781240475d13dbc

  • memory/1120-107-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1120-108-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1120-110-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1476-12-0x00007FFE17895000-0x00007FFE17896000-memory.dmp

    Filesize

    4KB

  • memory/1476-13-0x000000001BF80000-0x000000001C44E000-memory.dmp

    Filesize

    4.8MB

  • memory/1476-14-0x00007FFE175E0000-0x00007FFE17F81000-memory.dmp

    Filesize

    9.6MB

  • memory/1476-15-0x000000001C4F0000-0x000000001C58C000-memory.dmp

    Filesize

    624KB

  • memory/1476-16-0x00007FFE175E0000-0x00007FFE17F81000-memory.dmp

    Filesize

    9.6MB

  • memory/1476-23-0x00007FFE175E0000-0x00007FFE17F81000-memory.dmp

    Filesize

    9.6MB