Analysis

  • max time kernel
    15s
  • max time network
    16s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    10-12-2024 19:15

General

  • Target

    7aa79f0e14c9cb159264bb1bbcfec5702125a21f8718f8cdd1de0aa36b3267daN.exe

  • Size

    7.1MB

  • MD5

    d58df26275832d2210f044544c896c70

  • SHA1

    65354a0834a6b5a5ce0d84faff91dffa153d2abf

  • SHA256

    7aa79f0e14c9cb159264bb1bbcfec5702125a21f8718f8cdd1de0aa36b3267da

  • SHA512

    a2aa762f192ca2e3f9cfc98c8bb0e54220446cd97949be6f84087dcb312ff427d793156d719fd107613375bebf9592fe7368820cb446885d7448f4d8a39eae6f

  • SSDEEP

    196608:4fb2MSp3Tt6uCGAd1lUA2SPeuplxm2MSp3Tt6uCGAd1lUA2SPeuplx8fKu2MSp3w:AYt6uCGOlUpSPeupXXt6uCGOlUpSPeuY

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 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 use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7aa79f0e14c9cb159264bb1bbcfec5702125a21f8718f8cdd1de0aa36b3267daN.exe
    "C:\Users\Admin\AppData\Local\Temp\7aa79f0e14c9cb159264bb1bbcfec5702125a21f8718f8cdd1de0aa36b3267daN.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:2348
    • C:\Users\Admin\AppData\Local\Temp\3582-490\7aa79f0e14c9cb159264bb1bbcfec5702125a21f8718f8cdd1de0aa36b3267daN.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\7aa79f0e14c9cb159264bb1bbcfec5702125a21f8718f8cdd1de0aa36b3267daN.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:2084
      • C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exe
        dw20.exe -x -s 376
        3⤵
          PID:2688

    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\7aa79f0e14c9cb159264bb1bbcfec5702125a21f8718f8cdd1de0aa36b3267daN.exe

      Filesize

      7.1MB

      MD5

      537c6ecd9f6960b21db1656c7ab558ab

      SHA1

      39042f470343c18665d7123b3460c8dc491bdbe1

      SHA256

      0e5f02d22927c24f91e1242ed628112b72e2058c382cde06bc365d5425b79296

      SHA512

      fa8f952c747946cf85b3829c27ea25e45266f0b1556dffecd214b4f0f4361b83cc42cc7909279051348a98a4cee5e3f79d62bc6e3a6a578b8781240475d13dbc

    • memory/2084-14-0x000007FEF5DCE000-0x000007FEF5DCF000-memory.dmp

      Filesize

      4KB

    • memory/2084-15-0x000007FEF5B10000-0x000007FEF64AD000-memory.dmp

      Filesize

      9.6MB

    • memory/2084-17-0x000007FEF5DCE000-0x000007FEF5DCF000-memory.dmp

      Filesize

      4KB

    • memory/2084-90-0x000007FEF5B10000-0x000007FEF64AD000-memory.dmp

      Filesize

      9.6MB

    • memory/2348-91-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/2348-93-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/2688-16-0x0000000000360000-0x0000000000361000-memory.dmp

      Filesize

      4KB