Analysis

  • max time kernel
    94s
  • max time network
    96s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-11-2024 18:23

General

  • Target

    770083d495c3b9ec6162c8967f98f66959085f93e67aac64875e03b1f83e6c07N.exe

  • Size

    1.5MB

  • MD5

    fb0fd3a34f607531b4d2686b0eb281d0

  • SHA1

    23b6d04319aa57b457e700352cd0af0bbaf1a6d7

  • SHA256

    770083d495c3b9ec6162c8967f98f66959085f93e67aac64875e03b1f83e6c07

  • SHA512

    1664e1c4ad0ec0f7434af8bb2d97aee6cda7e86d974725e695c865aac69fa3eedf2d36b28eb889230c7ee25bdf92d35fecedd4a698bb3c986c899c3d8268bb16

  • SSDEEP

    24576:LGX3qIFLC2btK40XrkyrMuTVloP9MNIuHwP7Up93vFUh+tz0G6BzzwNMWPPpS:qqIFLC2bc40XrRMuj6qXe7aChEoXwK

Malware Config

Signatures

  • Detect Neshta payload 4 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 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 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 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\770083d495c3b9ec6162c8967f98f66959085f93e67aac64875e03b1f83e6c07N.exe
    "C:\Users\Admin\AppData\Local\Temp\770083d495c3b9ec6162c8967f98f66959085f93e67aac64875e03b1f83e6c07N.exe"
    1⤵
    • Checks computer location settings
    • 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:4700
    • C:\Users\Admin\AppData\Local\Temp\3582-490\770083d495c3b9ec6162c8967f98f66959085f93e67aac64875e03b1f83e6c07N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\770083d495c3b9ec6162c8967f98f66959085f93e67aac64875e03b1f83e6c07N.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1372
      • C:\Users\Admin\AppData\Local\Temp\is-8JJ4N.tmp\770083d495c3b9ec6162c8967f98f66959085f93e67aac64875e03b1f83e6c07N.tmp
        "C:\Users\Admin\AppData\Local\Temp\is-8JJ4N.tmp\770083d495c3b9ec6162c8967f98f66959085f93e67aac64875e03b1f83e6c07N.tmp" /SL5="$D0052,1175167,119296,C:\Users\Admin\AppData\Local\Temp\3582-490\770083d495c3b9ec6162c8967f98f66959085f93e67aac64875e03b1f83e6c07N.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:3140

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROTE~1.EXE

    Filesize

    86KB

    MD5

    3b73078a714bf61d1c19ebc3afc0e454

    SHA1

    9abeabd74613a2f533e2244c9ee6f967188e4e7e

    SHA256

    ded54d1fcca07b6bff2bc3b9a1131eac29ff1f836e5d7a7c5c325ec5abe96e29

    SHA512

    75959d4e8a7649c3268b551a2a378e6d27c0bfb03d2422ebeeb67b0a3f78c079473214057518930f2d72773ce79b106fd2d78405e8e3d8883459dcbb49c163c4

  • C:\Users\Admin\AppData\Local\Temp\3582-490\770083d495c3b9ec6162c8967f98f66959085f93e67aac64875e03b1f83e6c07N.exe

    Filesize

    1.5MB

    MD5

    dd9581e0ab28526168a5c3aba7cb6b0e

    SHA1

    0d343371744fb28405d2d9a46f99f65e7d5af4d1

    SHA256

    a21fac9c0e3af024e9e82a9ca1d0f5c2014c1dde85de1c28fb2337733e6e9537

    SHA512

    dc4009bf531cf1560e8cf5cce2d7f10de74651bcd0c5228aa35fc37840fca79e5590387a9683ddb3093450f1f4d7f53451d3f320e209a477f02f69341db42b38

  • C:\Users\Admin\AppData\Local\Temp\is-8JJ4N.tmp\770083d495c3b9ec6162c8967f98f66959085f93e67aac64875e03b1f83e6c07N.tmp

    Filesize

    1.1MB

    MD5

    4de6f44810bad050ac81f45549d58f34

    SHA1

    e001b982a0a978deed96789f943bf295dd2ba1d8

    SHA256

    cf8a77f4cbd38f6ab44fcff738f81ec8dfdaa7ef5a64d62fdd84c6fe897adff5

    SHA512

    550e468c3d6660ce2030fca16549eace9153610e19621cba83fea691f8d0091edb596a869168cf4b7f80fa55a808ca1703e4e2beffb3ade5af3fb67b6ead6673

  • memory/1372-12-0x0000000000400000-0x0000000000428000-memory.dmp

    Filesize

    160KB

  • memory/1372-14-0x0000000000401000-0x0000000000412000-memory.dmp

    Filesize

    68KB

  • memory/1372-111-0x0000000000400000-0x0000000000428000-memory.dmp

    Filesize

    160KB

  • memory/3140-19-0x0000000000400000-0x000000000052B000-memory.dmp

    Filesize

    1.2MB

  • memory/3140-110-0x0000000000400000-0x000000000052B000-memory.dmp

    Filesize

    1.2MB

  • memory/4700-112-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4700-113-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4700-115-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB