Analysis

  • max time kernel
    54s
  • max time network
    19s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    19-12-2024 00:56

General

  • Target

    56914a2bb9987b88bc90cf73a95a8d308d1dad02bf3d0e008e674bee9b621ea3N.exe

  • Size

    575KB

  • MD5

    9d2eb938e4de5d8c7a2cdecb38eced20

  • SHA1

    c97002f8913f7b1d04002a605780e43bd3506cd8

  • SHA256

    56914a2bb9987b88bc90cf73a95a8d308d1dad02bf3d0e008e674bee9b621ea3

  • SHA512

    a3b417353eccb51ab63b8a79c9a65968e9b1d14e16fb16c392f4a68a9283a5c4202bd7b5eeb7bf822281c3b2e9f673d817de539fe8295b8b7ce9abbd59313e44

  • SSDEEP

    12288:nflsncjn6lkY9yYS9ShflsnIjnB+oY9yozBS2:nyncOlksSAynIV+osjT

Malware Config

Signatures

  • Detect Neshta payload 7 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 7 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).

  • Program crash 1 IoCs
  • 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 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\56914a2bb9987b88bc90cf73a95a8d308d1dad02bf3d0e008e674bee9b621ea3N.exe
    "C:\Users\Admin\AppData\Local\Temp\56914a2bb9987b88bc90cf73a95a8d308d1dad02bf3d0e008e674bee9b621ea3N.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:108
    • C:\Users\Admin\AppData\Local\Temp\3582-490\56914a2bb9987b88bc90cf73a95a8d308d1dad02bf3d0e008e674bee9b621ea3N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\56914a2bb9987b88bc90cf73a95a8d308d1dad02bf3d0e008e674bee9b621ea3N.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2524
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2524 -s 672
        3⤵
        • Loads dropped DLL
        • Program crash
        PID:2816

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\56914a2bb9987b88bc90cf73a95a8d308d1dad02bf3d0e008e674bee9b621ea3N.exe

    Filesize

    535KB

    MD5

    4445bab3d1feddf88d724a9d9eeb59b4

    SHA1

    aee3143f20186123b364c3b344eb81a0d471762e

    SHA256

    4e3de8ab3cb9d1c0a92bf212c11570edb39c6c4b1153cb7f784fd06c55ea157a

    SHA512

    d2b27cad23963d9798e18b568c6e9cd0450a5a677486b141241035ea295cc5e52f6a633414f8957bc961c81b0fd6cbb2b54d49b716a3f76513c1a916c4b03c6e

  • memory/108-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/108-99-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/108-97-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/108-96-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/108-93-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/108-94-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2524-13-0x0000000000A20000-0x0000000000AA8000-memory.dmp

    Filesize

    544KB

  • memory/2524-92-0x0000000074820000-0x0000000074F0E000-memory.dmp

    Filesize

    6.9MB

  • memory/2524-20-0x0000000074820000-0x0000000074F0E000-memory.dmp

    Filesize

    6.9MB

  • memory/2524-12-0x000000007482E000-0x000000007482F000-memory.dmp

    Filesize

    4KB