Analysis

  • max time kernel
    118s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240903-es
  • resource tags

    arch:x64arch:x86image:win7-20240903-eslocale:es-esos:windows7-x64systemwindows
  • submitted
    15-11-2024 02:34

General

  • Target

    8fdea2ea99895d9313ab9bed0f832e28085902c4ad6c3fa36f1d92e83a73bc99.exe

  • Size

    1.3MB

  • MD5

    c752e30c447fe60ecacef65c5864bc8c

  • SHA1

    ade59cb46ebd3c4c7205c273417cdc77acae985b

  • SHA256

    8fdea2ea99895d9313ab9bed0f832e28085902c4ad6c3fa36f1d92e83a73bc99

  • SHA512

    c2b154428da73a5ac8169d14f2593fbea0c2ac54e76eff9beb96ed56b69df3fe7e86f97d708ae4591f408341f1bb108acae122dd38f07a4db4f83972ce880baf

  • SSDEEP

    12288:rRmRgwCfpczREXzaQg6cwNzquFXRM7Zzyyql2d2VJuZHRtEN0McpE76vDNFSMGF+:Vp2zSXzaQgc5dXR+Zm4EkHRzPSMGF7Vg

Malware Config

Signatures

  • Detect Neshta payload 2 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 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\8fdea2ea99895d9313ab9bed0f832e28085902c4ad6c3fa36f1d92e83a73bc99.exe
    "C:\Users\Admin\AppData\Local\Temp\8fdea2ea99895d9313ab9bed0f832e28085902c4ad6c3fa36f1d92e83a73bc99.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:2540
    • C:\Users\Admin\AppData\Local\Temp\3582-490\8fdea2ea99895d9313ab9bed0f832e28085902c4ad6c3fa36f1d92e83a73bc99.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\8fdea2ea99895d9313ab9bed0f832e28085902c4ad6c3fa36f1d92e83a73bc99.exe"
      2⤵
      • Executes dropped EXE
      PID:1184

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

  • \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\8fdea2ea99895d9313ab9bed0f832e28085902c4ad6c3fa36f1d92e83a73bc99.exe

    Filesize

    1.2MB

    MD5

    1e388894fb4045e7e93538881a8912a4

    SHA1

    d71fdc478f8ed30a5caeeb68985ccc7b2d63124e

    SHA256

    0278785acc2f3a741865544ece7e9ae08c3426ff3b1f7351da00ebbe21a5a52f

    SHA512

    20f267b2eb22416fc5a16fccb89499211dabc1390a11b2d457cadb3a6a30e5e716855fd2b2eb3e7cce3ad8d83cdd84de7f1a90456a49b920572426cf30f4b3c5

  • memory/2540-83-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB