Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20241023-en
  • resource tags

    arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
  • submitted
    19-12-2024 10:28

General

  • Target

    42885e725ddc542c02a88eb5f2f8ae27bbbfe324621ea70fc451bc6c9b7537b7N.exe

  • Size

    1.9MB

  • MD5

    e7951990f9660015421fbf3fb3b5e370

  • SHA1

    76ad1798ed94ba7076f8885b66c0e2785bfb8dd3

  • SHA256

    42885e725ddc542c02a88eb5f2f8ae27bbbfe324621ea70fc451bc6c9b7537b7

  • SHA512

    c4e8e10ce6c2f4bc36d74a636bad49ac7ed69499872a07b940e67ffe36a01adfad1896503770cb665ee39dacaf911ec2eecd7b41ba9fef187f8455ea815a19b4

  • SSDEEP

    49152:5HAG99hUyaIgaxksRCESsnrLOYu6NmlccPze5:+G99Z7xksRC1qVeo

Malware Config

Signatures

  • Detect Neshta payload 3 IoCs
  • Neshta

    Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

  • Neshta family
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 3 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.

  • Modifies registry class 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\42885e725ddc542c02a88eb5f2f8ae27bbbfe324621ea70fc451bc6c9b7537b7N.exe
    "C:\Users\Admin\AppData\Local\Temp\42885e725ddc542c02a88eb5f2f8ae27bbbfe324621ea70fc451bc6c9b7537b7N.exe"
    1⤵
    • Loads dropped DLL
    • 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:2404
    • C:\Users\Admin\AppData\Local\Temp\3582-490\42885e725ddc542c02a88eb5f2f8ae27bbbfe324621ea70fc451bc6c9b7537b7N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\42885e725ddc542c02a88eb5f2f8ae27bbbfe324621ea70fc451bc6c9b7537b7N.exe"
      2⤵
      • Executes dropped EXE
      PID:2144

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\MSOCache\ALLUSE~1\{90140~1\dwtrig20.exe

    Filesize

    547KB

    MD5

    cf6c595d3e5e9667667af096762fd9c4

    SHA1

    9bb44da8d7f6457099cb56e4f7d1026963dce7ce

    SHA256

    593e60cc30ae0789448547195af77f550387f6648d45847ea244dd0dd7abf03d

    SHA512

    ff4f789df9e6a6d0fbe12b3250f951fcf11e857906c65e96a30bb46266e7e1180d6103a03db2f3764e0d1346b2de7afba8259ba080057e4a268e45e8654dfa80

  • C:\Users\Admin\AppData\Local\Temp\3582-490\42885e725ddc542c02a88eb5f2f8ae27bbbfe324621ea70fc451bc6c9b7537b7N.exe

    Filesize

    1.8MB

    MD5

    8d8093e4cb8d8b72ae5107546beebcb4

    SHA1

    aeafa42aef4a4caf39e2b343b0cb629f4073503d

    SHA256

    157aaf673c6010ccd6778f4ed78427e273d54c4f6997ca84bcc7e507b69836d2

    SHA512

    d4934273180f69f4ec02608eedd3ae856fb7df3fd687e1966cf0996688c49e7e1757369f1c0aafb7a7f5a225fd736116fb63eb0813373a6ae53ec83d1407632a

  • \PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE

    Filesize

    252KB

    MD5

    9e2b9928c89a9d0da1d3e8f4bd96afa7

    SHA1

    ec66cda99f44b62470c6930e5afda061579cde35

    SHA256

    8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

    SHA512

    2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

  • memory/2404-85-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2404-87-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB