Analysis

  • max time kernel
    122s
  • max time network
    127s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    12-10-2024 08:44

General

  • Target

    5b83f4f63d3a293f6daba976587356c7f7323cabe4403caad3b47ed6434b55e3N.exe

  • Size

    149KB

  • MD5

    62c7a288293cd9b417f8ae3a16c83c90

  • SHA1

    335adae0f8ab03f03e89793d959813e20057b37e

  • SHA256

    5b83f4f63d3a293f6daba976587356c7f7323cabe4403caad3b47ed6434b55e3

  • SHA512

    138af11ed6d4a13a1950b94f1af162f2dcc578ddc7ce3e6e2b51506ad6bf5a71abcf79922ea047ee112744b6079c14511a5e419a30031d4857f5f5b1fbb07b8f

  • SSDEEP

    1536:JxqjQ+P04wsmJCeI1700UEuWNFQr3bVBXLYXzXwl4ePxVBXLYXzXwl4ePpA7DttM:sr85CeI1uWq3BB8DApLB8DApxA7ef

Malware Config

Signatures

  • Detect Neshta payload 8 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 use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5b83f4f63d3a293f6daba976587356c7f7323cabe4403caad3b47ed6434b55e3N.exe
    "C:\Users\Admin\AppData\Local\Temp\5b83f4f63d3a293f6daba976587356c7f7323cabe4403caad3b47ed6434b55e3N.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:2872
    • C:\Users\Admin\AppData\Local\Temp\3582-490\5b83f4f63d3a293f6daba976587356c7f7323cabe4403caad3b47ed6434b55e3N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\5b83f4f63d3a293f6daba976587356c7f7323cabe4403caad3b47ed6434b55e3N.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:2856
      • C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exe
        dw20.exe -x -s 400
        3⤵
          PID:2912

    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\5b83f4f63d3a293f6daba976587356c7f7323cabe4403caad3b47ed6434b55e3N.exe

      Filesize

      108KB

      MD5

      e058531b27d1322faf041e5368c24a58

      SHA1

      bb1a91b9f8f6a625f09a6de71170a493500fad70

      SHA256

      8e184cb4b4578a92134ca16e59948a2815b5103c6b6702574056eaa4a65356e7

      SHA512

      9bf7151e75690214f9253cf03f3fb48fbba767dc962cac6ae57195d0c31682c205890d9558d8f345085dbc94c5d0f1f56d4ba1674cfa82ae69e0837e930d8fbf

    • memory/2856-12-0x000007FEF5100000-0x000007FEF5A9D000-memory.dmp

      Filesize

      9.6MB

    • memory/2856-13-0x000007FEF5100000-0x000007FEF5A9D000-memory.dmp

      Filesize

      9.6MB

    • memory/2856-11-0x000007FEF53BE000-0x000007FEF53BF000-memory.dmp

      Filesize

      4KB

    • memory/2856-87-0x000007FEF5100000-0x000007FEF5A9D000-memory.dmp

      Filesize

      9.6MB

    • memory/2872-88-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/2872-89-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/2872-90-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/2872-91-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/2872-92-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/2872-93-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/2872-95-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/2912-14-0x0000000000300000-0x0000000000301000-memory.dmp

      Filesize

      4KB