Analysis

  • max time kernel
    118s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    23/10/2024, 12:08

General

  • Target

    e8a70ed1e94947395ce6906bd3940cd0f025d27d6a48a50fcaa55c8feb4e58e5N.exe

  • Size

    238KB

  • MD5

    db5a2ee1a4729cf69c81609eac6d9f40

  • SHA1

    c743a4342f66776ecd6a68ecf4df52f5937463a0

  • SHA256

    e8a70ed1e94947395ce6906bd3940cd0f025d27d6a48a50fcaa55c8feb4e58e5

  • SHA512

    72d9caf9a7596e9ddee1caa14bdb27322149261eb9dad30dc42cd2b51882ecba283c16970f5eafe52aba11c0d11fff785199a1e8bca5ad14b3dcbd032c38c8cf

  • SSDEEP

    3072:sr85C/9Mh2XtL+it8l25CoNxcglrZyIWBvSM5uImoZhI:k9/9McXtLHKl2koNxDlVVM5bjk

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.

  • 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\e8a70ed1e94947395ce6906bd3940cd0f025d27d6a48a50fcaa55c8feb4e58e5N.exe
    "C:\Users\Admin\AppData\Local\Temp\e8a70ed1e94947395ce6906bd3940cd0f025d27d6a48a50fcaa55c8feb4e58e5N.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:2508
    • C:\Users\Admin\AppData\Local\Temp\3582-490\e8a70ed1e94947395ce6906bd3940cd0f025d27d6a48a50fcaa55c8feb4e58e5N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\e8a70ed1e94947395ce6906bd3940cd0f025d27d6a48a50fcaa55c8feb4e58e5N.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:2984
      • C:\Windows\system32\WerFault.exe
        C:\Windows\system32\WerFault.exe -u -p 2984 -s 640
        3⤵
          PID:2804

    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

    • C:\Users\Admin\AppData\Local\Temp\3582-490\e8a70ed1e94947395ce6906bd3940cd0f025d27d6a48a50fcaa55c8feb4e58e5N.exe

      Filesize

      198KB

      MD5

      efa0eabd78d7377ebcea81afca039073

      SHA1

      c1aa978975b88b46c22a1d651beec1aed3cf9f69

      SHA256

      7925e97fc88ea162d341be968391c027f75df017a58ea71f3549045f8eadac6f

      SHA512

      c7735f801f65cb5eee14f50a7d3574ffd88aa7e7d34a3f592c7b1a78c2f7cc1d4698acfb4da347d3f876bb33f2dcc4760b0a580a83b5753d08770b74419c58a0

    • \PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE

      Filesize

      252KB

      MD5

      9e2b9928c89a9d0da1d3e8f4bd96afa7

      SHA1

      ec66cda99f44b62470c6930e5afda061579cde35

      SHA256

      8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

      SHA512

      2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

    • memory/2508-87-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/2508-89-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/2984-11-0x000007FEF5573000-0x000007FEF5574000-memory.dmp

      Filesize

      4KB

    • memory/2984-12-0x0000000000110000-0x0000000000146000-memory.dmp

      Filesize

      216KB

    • memory/2984-32-0x000007FEF5570000-0x000007FEF5F5C000-memory.dmp

      Filesize

      9.9MB

    • memory/2984-86-0x000007FEF5570000-0x000007FEF5F5C000-memory.dmp

      Filesize

      9.9MB