Analysis

  • max time kernel
    150s
  • max time network
    33s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    25-11-2022 18:12

General

  • Target

    2f733b75dc52e39be8cba27c7a312511685fe03ee70f29ad1ff1c419c9c530b2.exe

  • Size

    272KB

  • MD5

    4506c457537755ee865e7a935f760e3b

  • SHA1

    cc782ad14a0a034dcc53e65a05b09558e1f22baf

  • SHA256

    2f733b75dc52e39be8cba27c7a312511685fe03ee70f29ad1ff1c419c9c530b2

  • SHA512

    8d5bc67bdae6467bd4c2733a9c2f5147fb50e7396b7d065bafd46cd64a6af09047a621e66c6ae9508cd38f65516496c57cbf6874ae745574fb250f777bd89b73

  • SSDEEP

    6144:k9IP890XvXnPG58IbdAxI8xC7TwZGa6aP2syFob:V0QfO87A7Twka6aP6A

Malware Config

Signatures

  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • Neshta

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

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 4 IoCs
  • Reads user/profile data of web browsers 2 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). Likely ransomware behaviour.

  • Modifies registry class 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2f733b75dc52e39be8cba27c7a312511685fe03ee70f29ad1ff1c419c9c530b2.exe
    "C:\Users\Admin\AppData\Local\Temp\2f733b75dc52e39be8cba27c7a312511685fe03ee70f29ad1ff1c419c9c530b2.exe"
    1⤵
    • Modifies system executable filetype association
    • Loads dropped DLL
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:1144
    • C:\Users\Admin\AppData\Local\Temp\3582-490\2f733b75dc52e39be8cba27c7a312511685fe03ee70f29ad1ff1c419c9c530b2.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\2f733b75dc52e39be8cba27c7a312511685fe03ee70f29ad1ff1c419c9c530b2.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:1400
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
        dw20.exe -x -s 516
        3⤵
        • Loads dropped DLL
        PID:668

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\3582-490\2f733b75dc52e39be8cba27c7a312511685fe03ee70f29ad1ff1c419c9c530b2.exe

    Filesize

    232KB

    MD5

    8c1095e8c8f39f78a4380c3e663b8438

    SHA1

    4b7e59c227eeace15bb346a5d81600ce7b2b5444

    SHA256

    6145176cee41c81c5ca48b265d82fd9025325211b17b005ddd81b7a1d06d2482

    SHA512

    c4c12c00224800ad545dff4be2d73806c9582c3fec5fb13cadefdc2a683218a2c20adc7b1fbabfd98f47769f4fdff4755698395e602d6a13a7cb66de2229b2b8

  • C:\Users\Admin\AppData\Local\Temp\3582-490\2f733b75dc52e39be8cba27c7a312511685fe03ee70f29ad1ff1c419c9c530b2.exe

    Filesize

    232KB

    MD5

    8c1095e8c8f39f78a4380c3e663b8438

    SHA1

    4b7e59c227eeace15bb346a5d81600ce7b2b5444

    SHA256

    6145176cee41c81c5ca48b265d82fd9025325211b17b005ddd81b7a1d06d2482

    SHA512

    c4c12c00224800ad545dff4be2d73806c9582c3fec5fb13cadefdc2a683218a2c20adc7b1fbabfd98f47769f4fdff4755698395e602d6a13a7cb66de2229b2b8

  • \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\2f733b75dc52e39be8cba27c7a312511685fe03ee70f29ad1ff1c419c9c530b2.exe

    Filesize

    232KB

    MD5

    8c1095e8c8f39f78a4380c3e663b8438

    SHA1

    4b7e59c227eeace15bb346a5d81600ce7b2b5444

    SHA256

    6145176cee41c81c5ca48b265d82fd9025325211b17b005ddd81b7a1d06d2482

    SHA512

    c4c12c00224800ad545dff4be2d73806c9582c3fec5fb13cadefdc2a683218a2c20adc7b1fbabfd98f47769f4fdff4755698395e602d6a13a7cb66de2229b2b8

  • \Users\Admin\AppData\Local\Temp\3582-490\2f733b75dc52e39be8cba27c7a312511685fe03ee70f29ad1ff1c419c9c530b2.exe

    Filesize

    232KB

    MD5

    8c1095e8c8f39f78a4380c3e663b8438

    SHA1

    4b7e59c227eeace15bb346a5d81600ce7b2b5444

    SHA256

    6145176cee41c81c5ca48b265d82fd9025325211b17b005ddd81b7a1d06d2482

    SHA512

    c4c12c00224800ad545dff4be2d73806c9582c3fec5fb13cadefdc2a683218a2c20adc7b1fbabfd98f47769f4fdff4755698395e602d6a13a7cb66de2229b2b8

  • \Users\Admin\AppData\Local\Temp\3582-490\2f733b75dc52e39be8cba27c7a312511685fe03ee70f29ad1ff1c419c9c530b2.exe

    Filesize

    232KB

    MD5

    8c1095e8c8f39f78a4380c3e663b8438

    SHA1

    4b7e59c227eeace15bb346a5d81600ce7b2b5444

    SHA256

    6145176cee41c81c5ca48b265d82fd9025325211b17b005ddd81b7a1d06d2482

    SHA512

    c4c12c00224800ad545dff4be2d73806c9582c3fec5fb13cadefdc2a683218a2c20adc7b1fbabfd98f47769f4fdff4755698395e602d6a13a7cb66de2229b2b8

  • memory/668-64-0x0000000000000000-mapping.dmp

  • memory/1144-54-0x0000000075F01000-0x0000000075F03000-memory.dmp

    Filesize

    8KB

  • memory/1400-57-0x0000000000000000-mapping.dmp

  • memory/1400-61-0x00000000745B0000-0x0000000074B5B000-memory.dmp

    Filesize

    5.7MB

  • memory/1400-63-0x00000000745B0000-0x0000000074B5B000-memory.dmp

    Filesize

    5.7MB