Analysis

  • max time kernel
    140s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-11-2024 00:06

General

  • Target

    6795730677511dee8f998435680026e87f1a59f02ef689b7c9df580d988f7424.exe

  • Size

    196KB

  • MD5

    734591dc48cbb87c9dd13293211c682b

  • SHA1

    c5bffa083c85bccbf6f620c7a0fea37698b358e4

  • SHA256

    6795730677511dee8f998435680026e87f1a59f02ef689b7c9df580d988f7424

  • SHA512

    aafe252642563daee472ce8b9f5003e179e6679435ac045a11be4a2430a56f7865826bb91e40e9c487f8b9e3bf636c10ac240855eb87e4b6686ab7150b8d26a8

  • SSDEEP

    3072:sr85CGD0G2J1QwkhmwbVDXfNcxE0nwxz+r85CGD0G2J1:k9GD0G2JqqwbZXFcxEGwxS9GD0G2J

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).

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 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 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6795730677511dee8f998435680026e87f1a59f02ef689b7c9df580d988f7424.exe
    "C:\Users\Admin\AppData\Local\Temp\6795730677511dee8f998435680026e87f1a59f02ef689b7c9df580d988f7424.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:2072
    • C:\Users\Admin\AppData\Local\Temp\3582-490\6795730677511dee8f998435680026e87f1a59f02ef689b7c9df580d988f7424.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\6795730677511dee8f998435680026e87f1a59f02ef689b7c9df580d988f7424.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:1136
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1136 -s 408
        3⤵
        • Program crash
        PID:2708
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 1136 -ip 1136
    1⤵
      PID:4204

    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\6795730677511dee8f998435680026e87f1a59f02ef689b7c9df580d988f7424.exe

      Filesize

      156KB

      MD5

      a8d0184f4536b6c11030ec8ffff1815f

      SHA1

      90f31d8c80a1aeea93d27776e7e12835d3293682

      SHA256

      421201307da0e823311863e370aa5e97822462c785d1de3149c06540c5b450bc

      SHA512

      c3d049e31a9f62ae5434744c9ee01b42424231fba82fe515171112dd9c3c730226bc2189a826ac1a4e4af152b162d1e8aafc5a02153a1ebb21d64a291c5e69c0

    • memory/2072-95-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/2072-96-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/2072-97-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/2072-99-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB