Analysis

  • max time kernel
    114s
  • max time network
    19s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    12-10-2024 02:32

General

  • Target

    5d784679ef46f24bf5f4c4c937e4d4f86f3c83f8c35db789b6ab905fe0c02855N.exe

  • Size

    162KB

  • MD5

    c33d4be9780a20a5abb19fc57733bcf0

  • SHA1

    a591c57590d908500fbba460d5db4aef97613f34

  • SHA256

    5d784679ef46f24bf5f4c4c937e4d4f86f3c83f8c35db789b6ab905fe0c02855

  • SHA512

    2cbd94e023fa2bb1d0ce8216fb12be76d2573e999791dc406db35b8d6efc82a36330aaf3728753a4951fb4d64b2db7cfd55c94ec5025150a59172673a9a43f4d

  • SSDEEP

    3072:sr85Ceg0fftdn5XOrB8DApzB8DApFEgVw:k9Zs188D48DKY

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.

  • 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 behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5d784679ef46f24bf5f4c4c937e4d4f86f3c83f8c35db789b6ab905fe0c02855N.exe
    "C:\Users\Admin\AppData\Local\Temp\5d784679ef46f24bf5f4c4c937e4d4f86f3c83f8c35db789b6ab905fe0c02855N.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:2332
    • C:\Users\Admin\AppData\Local\Temp\3582-490\5d784679ef46f24bf5f4c4c937e4d4f86f3c83f8c35db789b6ab905fe0c02855N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\5d784679ef46f24bf5f4c4c937e4d4f86f3c83f8c35db789b6ab905fe0c02855N.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1560
      • C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exe
        dw20.exe -x -s 476
        3⤵
          PID:2364

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    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\5d784679ef46f24bf5f4c4c937e4d4f86f3c83f8c35db789b6ab905fe0c02855N.exe

      Filesize

      121KB

      MD5

      98f77a8c5c25e149a241a695234d4daa

      SHA1

      d88ce26e6f9582e09915424887f28b55dfe7758f

      SHA256

      c74618f68248b52df55a532db12e30914cd2ed87a4a70bd1b4a8264242b4759a

      SHA512

      17020ca7032274e7e709549085205419dfe0274d9083c0b6325a3ba3dc48dc2990823a09021b292ce63bb5672d0d8023d77e162c9bf910ad244bc30a79c2a8ce

    • memory/1560-12-0x000007FEF5880000-0x000007FEF621D000-memory.dmp

      Filesize

      9.6MB

    • memory/1560-13-0x000007FEF5880000-0x000007FEF621D000-memory.dmp

      Filesize

      9.6MB

    • memory/1560-9-0x000007FEF5B3E000-0x000007FEF5B3F000-memory.dmp

      Filesize

      4KB

    • memory/1560-87-0x000007FEF5880000-0x000007FEF621D000-memory.dmp

      Filesize

      9.6MB

    • memory/2332-88-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/2332-89-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/2332-90-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/2332-91-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/2332-92-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/2332-94-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/2364-14-0x00000000004A0000-0x00000000004A1000-memory.dmp

      Filesize

      4KB