Analysis

  • max time kernel
    102s
  • max time network
    105s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-01-2025 02:22

General

  • Target

    dd67886feb1347ccf0732c6df06e4add3ab7f03719ab88f5c356685daff97208N.exe

  • Size

    2.4MB

  • MD5

    7d442e1769b943f3495293d3377965c0

  • SHA1

    84aa9c5ef7f59713f562fc0393bed06e3b54286a

  • SHA256

    dd67886feb1347ccf0732c6df06e4add3ab7f03719ab88f5c356685daff97208

  • SHA512

    38ef6b8b5d9eb5e1ce3135f82786529fe3729030573fb49a5cd1f8c8fcbedcd1c4daf5d56fe5a39a4377fca92e2aab5690b46e18d63f9847772e60c1199e84b6

  • SSDEEP

    49152:MWrWY5dcJP1K+miVsQBg6zGVV1BCjBEYgIrjYa:zrosSG8j9

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.

  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • 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.

  • Modifies registry class 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\dd67886feb1347ccf0732c6df06e4add3ab7f03719ab88f5c356685daff97208N.exe
    "C:\Users\Admin\AppData\Local\Temp\dd67886feb1347ccf0732c6df06e4add3ab7f03719ab88f5c356685daff97208N.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:684
    • C:\Users\Admin\AppData\Local\Temp\3582-490\dd67886feb1347ccf0732c6df06e4add3ab7f03719ab88f5c356685daff97208N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\dd67886feb1347ccf0732c6df06e4add3ab7f03719ab88f5c356685daff97208N.exe"
      2⤵
      • Executes dropped EXE
      • Writes to the Master Boot Record (MBR)
      • Suspicious use of AdjustPrivilegeToken
      PID:2124

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\dd67886feb1347ccf0732c6df06e4add3ab7f03719ab88f5c356685daff97208N.exe

    Filesize

    2.3MB

    MD5

    28a7e3bae6e28d383f8c793aa780236b

    SHA1

    c3e3db7e2d08f1d2907dd1fde52cbacf119220c3

    SHA256

    260754085d0d9deaa983c981fe53a23bfa535846fae51e23984c354a11388255

    SHA512

    cd8da2f21e1aeef20d43e0eaa0b2cb436778beaea1d9db1a61e39ce6134b064d11c9c3157cb1a3026bd7f3654803bfd71f6d3382a92dc4817e4cbc9132b29b0e

  • memory/684-115-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/684-113-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/684-112-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2124-15-0x0000021D66480000-0x0000021D66530000-memory.dmp

    Filesize

    704KB

  • memory/2124-16-0x0000021D4C150000-0x0000021D4C15A000-memory.dmp

    Filesize

    40KB

  • memory/2124-19-0x00007FFA494B0000-0x00007FFA49F71000-memory.dmp

    Filesize

    10.8MB

  • memory/2124-24-0x00007FFA494B0000-0x00007FFA49F71000-memory.dmp

    Filesize

    10.8MB

  • memory/2124-21-0x0000021D6BA10000-0x0000021D6BA1E000-memory.dmp

    Filesize

    56KB

  • memory/2124-20-0x0000021D6BA50000-0x0000021D6BA88000-memory.dmp

    Filesize

    224KB

  • memory/2124-25-0x00007FFA494B0000-0x00007FFA49F71000-memory.dmp

    Filesize

    10.8MB

  • memory/2124-17-0x0000021D66A60000-0x0000021D66F88000-memory.dmp

    Filesize

    5.2MB

  • memory/2124-40-0x0000021D6BAC0000-0x0000021D6BAE2000-memory.dmp

    Filesize

    136KB

  • memory/2124-110-0x00007FFA494B3000-0x00007FFA494B5000-memory.dmp

    Filesize

    8KB

  • memory/2124-111-0x00007FFA494B0000-0x00007FFA49F71000-memory.dmp

    Filesize

    10.8MB

  • memory/2124-14-0x00007FFA494B0000-0x00007FFA49F71000-memory.dmp

    Filesize

    10.8MB

  • memory/2124-13-0x0000021D4A2C0000-0x0000021D4A51A000-memory.dmp

    Filesize

    2.4MB

  • memory/2124-12-0x00007FFA494B3000-0x00007FFA494B5000-memory.dmp

    Filesize

    8KB