Analysis

  • max time kernel
    110s
  • max time network
    16s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    25-01-2025 08:48

General

  • Target

    ef68f1eab7deb9bed15039a135ad621043fdd6fa7972a9e0387a46f904a019e2N.exe

  • Size

    434KB

  • MD5

    17a273519c4950e8930a2f879d1659c0

  • SHA1

    5234cab83797f504fb80e2e7d2f13dd46737f906

  • SHA256

    ef68f1eab7deb9bed15039a135ad621043fdd6fa7972a9e0387a46f904a019e2

  • SHA512

    2ad5443e9db241137c686483a52261d8f13d74ef2debecb3685b79069f73699fb9c913088229be4bd93d591ae61903e89bc9d63e56d475897a622486b6c9cc4a

  • SSDEEP

    12288:4Gj8yn/BZ22ON+8JLxN+uqESXCID0hr/wTQg0k:RxpZ22OE8FxN+umXTCTwTQg0k

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
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 3 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 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies registry class 15 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ef68f1eab7deb9bed15039a135ad621043fdd6fa7972a9e0387a46f904a019e2N.exe
    "C:\Users\Admin\AppData\Local\Temp\ef68f1eab7deb9bed15039a135ad621043fdd6fa7972a9e0387a46f904a019e2N.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:2512
    • C:\Users\Admin\AppData\Local\Temp\3582-490\ef68f1eab7deb9bed15039a135ad621043fdd6fa7972a9e0387a46f904a019e2N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\ef68f1eab7deb9bed15039a135ad621043fdd6fa7972a9e0387a46f904a019e2N.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:1076

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\ef68f1eab7deb9bed15039a135ad621043fdd6fa7972a9e0387a46f904a019e2N.exe

    Filesize

    393KB

    MD5

    628600eb426ff420ad60cefd98a79e20

    SHA1

    2695f900d16d98deb51be9555a95a70b921c5ed7

    SHA256

    ca287a10ed2ca704a3c7de3e5755940400c047b72d1916745af59bc5ce1fe7c3

    SHA512

    464fe33a988a17b24f18950f604f0d0855132481a5fd8c6c5eab8b506b7a5ad69336b0237985e91280354436e04bd9968e6340a10faebd1610cd9051c06fb9da

  • memory/1076-13-0x0000000000400000-0x00000000004D1000-memory.dmp

    Filesize

    836KB

  • memory/1076-16-0x0000000000220000-0x0000000000223000-memory.dmp

    Filesize

    12KB

  • memory/1076-90-0x0000000000400000-0x00000000004D1000-memory.dmp

    Filesize

    836KB

  • memory/1076-91-0x0000000000220000-0x0000000000223000-memory.dmp

    Filesize

    12KB

  • memory/2512-9-0x0000000002C80000-0x0000000002D51000-memory.dmp

    Filesize

    836KB

  • memory/2512-89-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2512-93-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB