Analysis

  • max time kernel
    85s
  • max time network
    16s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    01-01-2025 13:29

General

  • Target

    ebe18d112fe12b0d0827f3ca36e0d7377770dba8421566c58106a7166041f2ebN.exe

  • Size

    4.0MB

  • MD5

    a6a64a5885215f5fa6ff86a04d7afbd0

  • SHA1

    18e83c5ffce1b586f212bb56a291e4c1ad013317

  • SHA256

    ebe18d112fe12b0d0827f3ca36e0d7377770dba8421566c58106a7166041f2eb

  • SHA512

    67aed9413d9c88e654ac2b52487313b7c7eddeef8611c60ab47ad9aa645a5194a5d6b9cb1fe442644964d9784b88d71634fdc052d8cb5d090e4e1aa90be70486

  • SSDEEP

    49152:VKKM87S6Ny48dUqnrvV/pmAwQBYDOlrQ4XtbkG3k:cK9m6sUypeD+rlN0

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
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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 Internet Explorer settings 1 TTPs 5 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ebe18d112fe12b0d0827f3ca36e0d7377770dba8421566c58106a7166041f2ebN.exe
    "C:\Users\Admin\AppData\Local\Temp\ebe18d112fe12b0d0827f3ca36e0d7377770dba8421566c58106a7166041f2ebN.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:2424
    • C:\Users\Admin\AppData\Local\Temp\3582-490\ebe18d112fe12b0d0827f3ca36e0d7377770dba8421566c58106a7166041f2ebN.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\ebe18d112fe12b0d0827f3ca36e0d7377770dba8421566c58106a7166041f2ebN.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Modifies Internet Explorer settings
      PID:3012

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\ebe18d112fe12b0d0827f3ca36e0d7377770dba8421566c58106a7166041f2ebN.exe

    Filesize

    3.9MB

    MD5

    55f99737002691bb9105a9c0c6d66d9c

    SHA1

    a5a155bd2fc0dd371d9206d3e1c30891e01097c5

    SHA256

    8d9661dd6ebf1d2b4ebb1a3a33443b69154df0da44d984bc72f8f81eb8c8cb8a

    SHA512

    da4a8b1d5ffe06678769ef685725b3aef50abc0deced671155f8fbb832ddd994d7f02f7e32b464bdfb77cfced45337e699525caa54e6396ba11a4852bedbf39f

  • memory/2424-86-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2424-88-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3012-11-0x0000000000240000-0x0000000000241000-memory.dmp

    Filesize

    4KB