Analysis

  • max time kernel
    19s
  • max time network
    16s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    07-12-2024 19:32

General

  • Target

    71796edff5c3363d6ed4fb9ef8ffa006e396e9ad21d32afdc2d88b0010d3314cN.exe

  • Size

    6.1MB

  • MD5

    07432c5f305ac35c5f81e616901391e0

  • SHA1

    709f26c8a11cdfd44f76db112078bafbd4b4cd67

  • SHA256

    71796edff5c3363d6ed4fb9ef8ffa006e396e9ad21d32afdc2d88b0010d3314c

  • SHA512

    537fde84d92cadf87e02111e55368bd9b20afc59f2ddbee7f3030b31d29befe942cd798f75606e120958e5484a48a62bcd37418ac11ee69f6663beb26b54d666

  • SSDEEP

    49152:6o1Su8RAF7b9L4C/aDLYuWWKiVZ9vC+L57LYiNhB9PcM3dCU5vq/zhEe1okoqJKd:YCizfh9hQlLokoqlWOjrM

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 9 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\71796edff5c3363d6ed4fb9ef8ffa006e396e9ad21d32afdc2d88b0010d3314cN.exe
    "C:\Users\Admin\AppData\Local\Temp\71796edff5c3363d6ed4fb9ef8ffa006e396e9ad21d32afdc2d88b0010d3314cN.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:1620
    • C:\Users\Admin\AppData\Local\Temp\3582-490\71796edff5c3363d6ed4fb9ef8ffa006e396e9ad21d32afdc2d88b0010d3314cN.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\71796edff5c3363d6ed4fb9ef8ffa006e396e9ad21d32afdc2d88b0010d3314cN.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:2212
      • C:\Windows\system32\WerFault.exe
        C:\Windows\system32\WerFault.exe -u -p 2212 -s 156
        3⤵
        • Loads dropped DLL
        PID:2392

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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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\71796edff5c3363d6ed4fb9ef8ffa006e396e9ad21d32afdc2d88b0010d3314cN.exe

    Filesize

    6.0MB

    MD5

    7ddf3ee3f7506355b3392e34212fe3df

    SHA1

    a739d377d58cfe6402f2f5577995a87246e0ea6b

    SHA256

    2b78b4753469738447a391ea6423e140d8c50c3d2ca43b4fbd6b5b7cde2074a4

    SHA512

    394cc3bad2dcdaa51851d768fef33254b309a735010a4b661506bc323a5568ea5120ef51e0b9f21a849dc014a2f1a3c6b64abb4cb8b8b48410bac3d8741b5e8e

  • memory/1620-89-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1620-91-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB