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
    17-12-2024 02:18

General

  • Target

    5aac027e68f28a67bf327deef39d1a592b5d33d0e1c0c9ffd1471a0a08c68494N.exe

  • Size

    133KB

  • MD5

    789bb0c5743124599f4837ff4db70e50

  • SHA1

    bfea70be2805cb3db762a7799fd7dec94cd2cdb8

  • SHA256

    5aac027e68f28a67bf327deef39d1a592b5d33d0e1c0c9ffd1471a0a08c68494

  • SHA512

    ec6b02482ae7c7090cb85f27542539f35a264729a349b247b76aedb08907e6d8eb4ee21c23ece7779252eaf30dc46bca47a47fb51d6b39c4251711b5cacc0149

  • SSDEEP

    3072:zr8WDrC+c4mZx8Q8Cu1azdzOceGAOHejGk:PudZ9aaz9OcVY

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 5 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 3 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 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5aac027e68f28a67bf327deef39d1a592b5d33d0e1c0c9ffd1471a0a08c68494N.exe
    "C:\Users\Admin\AppData\Local\Temp\5aac027e68f28a67bf327deef39d1a592b5d33d0e1c0c9ffd1471a0a08c68494N.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:2416
    • C:\Users\Admin\AppData\Local\Temp\3582-490\5aac027e68f28a67bf327deef39d1a592b5d33d0e1c0c9ffd1471a0a08c68494N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\5aac027e68f28a67bf327deef39d1a592b5d33d0e1c0c9ffd1471a0a08c68494N.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2144
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
        dw20.exe -x -s 976
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2952

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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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\5aac027e68f28a67bf327deef39d1a592b5d33d0e1c0c9ffd1471a0a08c68494N.exe

    Filesize

    93KB

    MD5

    8c989d08b0121440f332a14b8409c6ca

    SHA1

    c7e6abf7d90c62f61dd59f79c0b6363cc763843a

    SHA256

    e5c98b591bc7518949238c4f7e22d6db5a66cfe5fe02c85194a8b45d76cf06cc

    SHA512

    e2e586f4c1b85a5d7d75f82d8a2c7c9b472e9f910433f708b01b4a39936fece5e5461a2c8af9d2af6e4073d18ad625f4e88107ece9d3d8c560f3ef3681edd452

  • memory/2144-13-0x0000000074761000-0x0000000074762000-memory.dmp

    Filesize

    4KB

  • memory/2144-14-0x0000000074760000-0x0000000074D0B000-memory.dmp

    Filesize

    5.7MB

  • memory/2144-15-0x0000000074760000-0x0000000074D0B000-memory.dmp

    Filesize

    5.7MB

  • memory/2144-99-0x0000000074760000-0x0000000074D0B000-memory.dmp

    Filesize

    5.7MB

  • memory/2144-102-0x0000000074760000-0x0000000074D0B000-memory.dmp

    Filesize

    5.7MB

  • memory/2416-100-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2416-104-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2952-26-0x0000000000450000-0x0000000000451000-memory.dmp

    Filesize

    4KB

  • memory/2952-101-0x0000000000450000-0x0000000000451000-memory.dmp

    Filesize

    4KB