Analysis

  • max time kernel
    118s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    08-11-2024 21:39

General

  • Target

    38fa4922fa6f02a2d706caf1a43784134e68d9db778faa95df62ee9af8ee7121.exe

  • Size

    1.5MB

  • MD5

    50d851a8b4fa8e6edddce24517ea83b2

  • SHA1

    ff84cfaad371da7b6b9c9513fb9df6a435be7b44

  • SHA256

    38fa4922fa6f02a2d706caf1a43784134e68d9db778faa95df62ee9af8ee7121

  • SHA512

    9a5c009a31aa34c346261be7ca6aa85f354c59194addd0c4af93c68378966e80beb06abc4eb219a28c45f2da8e32ff55133698ed7d82ead3617f224b5cb0af44

  • SSDEEP

    24576:rNweGnRgiff6mz3/IDfj6fNViWo5nqyTeVwj8owUJ5iXL9IXbE:5bfO6mz3+hWoNqyTCwj8ozJ5yL9IXbE

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 2 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 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 behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\38fa4922fa6f02a2d706caf1a43784134e68d9db778faa95df62ee9af8ee7121.exe
    "C:\Users\Admin\AppData\Local\Temp\38fa4922fa6f02a2d706caf1a43784134e68d9db778faa95df62ee9af8ee7121.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:276
    • C:\Users\Admin\AppData\Local\Temp\3582-490\38fa4922fa6f02a2d706caf1a43784134e68d9db778faa95df62ee9af8ee7121.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\38fa4922fa6f02a2d706caf1a43784134e68d9db778faa95df62ee9af8ee7121.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:2312

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    547KB

    MD5

    cf6c595d3e5e9667667af096762fd9c4

    SHA1

    9bb44da8d7f6457099cb56e4f7d1026963dce7ce

    SHA256

    593e60cc30ae0789448547195af77f550387f6648d45847ea244dd0dd7abf03d

    SHA512

    ff4f789df9e6a6d0fbe12b3250f951fcf11e857906c65e96a30bb46266e7e1180d6103a03db2f3764e0d1346b2de7afba8259ba080057e4a268e45e8654dfa80

  • C:\Users\Admin\AppData\Roaming\HaoCompress\update\download\1\HaoCompress.NewVersion.data

    Filesize

    29B

    MD5

    99fb8e84b8aa92889349054a60e1f359

    SHA1

    1b3dd1afb4fe4533ca16db4dd3e7845c13b0e1c5

    SHA256

    5313e624a817ebcb34675027d12b87465de4fc4fdddfdd74d244490c4911b8e4

    SHA512

    2a99095109445c3ca1b9fad5c87fdfed331641401ca8d19d3ab4d109e18b9dc5feb739485f14f390bd3bcfa3a4325e3b1278fe1bb8690dd8df16edb9af52faac

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

    Filesize

    252KB

    MD5

    9e2b9928c89a9d0da1d3e8f4bd96afa7

    SHA1

    ec66cda99f44b62470c6930e5afda061579cde35

    SHA256

    8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

    SHA512

    2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

  • \Users\Admin\AppData\Local\Temp\3582-490\38fa4922fa6f02a2d706caf1a43784134e68d9db778faa95df62ee9af8ee7121.exe

    Filesize

    1.5MB

    MD5

    d3c671ad75fcd77de04a021bc0df93b6

    SHA1

    4e4fe696af15066cb895107943a1363815b45f22

    SHA256

    285020e3beea76e2801ad0274c0b67adf52c88a069c760cf898437dc7ea78316

    SHA512

    d3dddcd1ea2feba6fc6221fc1c597a5c2079f7232174c1318c4143feaebe977c78b35807104c0ae79383adb0db8fa6635483e7a2e34cb1d3e59f9c53eed83845

  • memory/276-90-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/276-92-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB