Analysis

  • max time kernel
    31s
  • max time network
    31s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    16-12-2024 19:26

General

  • Target

    f5f8717d8d2ff861b9c5df5bae72dd3feaa303c482c720d92a0d1cba2c7598d6N.exe

  • Size

    113KB

  • MD5

    dbddf60efc9a63de4ad1efcb72b70da0

  • SHA1

    7691839780ad1a96cb5555a328f8dc4d60cd89bc

  • SHA256

    f5f8717d8d2ff861b9c5df5bae72dd3feaa303c482c720d92a0d1cba2c7598d6

  • SHA512

    491fcd2465158768de545ce18e57e6c956e9f4b5aa04ca1324a2350d7c9873960d5c7b34d2adbcad72a05e80b57a1ddbb941b062abd7bede4b2320470ad6fe4d

  • SSDEEP

    1536:yxqjQ+P04wsZLnDrCJszGda4B18Cy/bdEKG19Ah10:zr8WDrC2zGdDB18Cy/BlG19S0

Malware Config

Signatures

  • 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 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 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f5f8717d8d2ff861b9c5df5bae72dd3feaa303c482c720d92a0d1cba2c7598d6N.exe
    "C:\Users\Admin\AppData\Local\Temp\f5f8717d8d2ff861b9c5df5bae72dd3feaa303c482c720d92a0d1cba2c7598d6N.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:2112
    • C:\Users\Admin\AppData\Local\Temp\3582-490\f5f8717d8d2ff861b9c5df5bae72dd3feaa303c482c720d92a0d1cba2c7598d6N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\f5f8717d8d2ff861b9c5df5bae72dd3feaa303c482c720d92a0d1cba2c7598d6N.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:2912
      • C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exe
        dw20.exe -x -s 924
        3⤵
          PID:2428

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\MSOCache\ALLUSE~1\{90140~1\DW20.EXE

      Filesize

      859KB

      MD5

      754309b7b83050a50768236ee966224f

      SHA1

      10ed7efc2e594417ddeb00a42deb8fd9f804ed53

      SHA256

      acd32dd903e5464b0ecd153fb3f71da520d2e59a63d4c355d9c1874c919d04e6

      SHA512

      e5aaddf62c08c8fcc1ae3f29df220c5c730a2efa96dd18685ee19f5a9d66c4735bb4416c4828033661990604669ed345415ef2dc096ec75e1ab378dd804b1614

    • \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\f5f8717d8d2ff861b9c5df5bae72dd3feaa303c482c720d92a0d1cba2c7598d6N.exe

      Filesize

      73KB

      MD5

      e652ddf7b860978560dfb56dff02e684

      SHA1

      3534ff5b386911fcdbeec3c761420f794e0ae7d6

      SHA256

      6e584a0a3de2541b54b848f9d81681a5bbbe25c18a6a2b84e54e69e2132fff71

      SHA512

      18555c8586c77c79159040ec5d3cf6a228c6724f17412c941ead03a28a2d03de42895838ea449fdb1e3c8fd983926ce8f2a5aaaf607ad5819398663fbd6722cd

    • memory/2112-96-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/2112-98-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/2912-12-0x000007FEF5CFE000-0x000007FEF5CFF000-memory.dmp

      Filesize

      4KB

    • memory/2912-20-0x000007FEF5A40000-0x000007FEF63DD000-memory.dmp

      Filesize

      9.6MB

    • memory/2912-21-0x000007FEF5A40000-0x000007FEF63DD000-memory.dmp

      Filesize

      9.6MB

    • memory/2912-94-0x000007FEF5A40000-0x000007FEF63DD000-memory.dmp

      Filesize

      9.6MB

    • memory/2912-95-0x000007FEF5CFE000-0x000007FEF5CFF000-memory.dmp

      Filesize

      4KB

    • memory/2912-99-0x000007FEF5A40000-0x000007FEF63DD000-memory.dmp

      Filesize

      9.6MB