Analysis

  • max time kernel
    118s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20241023-en
  • resource tags

    arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
  • submitted
    02-11-2024 09:45

General

  • Target

    f797e090000816615fd09cb073d5f39d734b3d9b4ae5149ab221aceb041b1378.exe

  • Size

    128KB

  • MD5

    29d07a0e458ab6e27913dc331f1af015

  • SHA1

    3cc0f1f8fd8f179b4b5f2fc2c42da9820a968851

  • SHA256

    f797e090000816615fd09cb073d5f39d734b3d9b4ae5149ab221aceb041b1378

  • SHA512

    b7e3e353fbff9c37a636028b2e07be9a556944b7c28e76b0f8a545ea13752d79fb7f901442b4aef8b53fc11cd74ce3d4a4cf1b52126b1caedf53fd3aa29275d3

  • SSDEEP

    1536:JxqjQ+P04wsmJCfh7KUjxHXg9aD7v/L8voFCPNv1oI6Mos:sr85CFxRXF/G9ros

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 2 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 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f797e090000816615fd09cb073d5f39d734b3d9b4ae5149ab221aceb041b1378.exe
    "C:\Users\Admin\AppData\Local\Temp\f797e090000816615fd09cb073d5f39d734b3d9b4ae5149ab221aceb041b1378.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:2452
    • C:\Users\Admin\AppData\Local\Temp\3582-490\f797e090000816615fd09cb073d5f39d734b3d9b4ae5149ab221aceb041b1378.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\f797e090000816615fd09cb073d5f39d734b3d9b4ae5149ab221aceb041b1378.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2904

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\f797e090000816615fd09cb073d5f39d734b3d9b4ae5149ab221aceb041b1378.exe

    Filesize

    88KB

    MD5

    97ed8b5d4e56b4f7a7d399f3610f60ab

    SHA1

    aafdb3e9835fdf6fe793f40326e45aa07439969d

    SHA256

    dc53f3b677f4c5c5767c34a921ba577e37300e4ee5355a56bdb76756612b2252

    SHA512

    e3fcc705d8a4cd8cb8aef9f1c18f5e9e358ca55ad014df5e18e3ae2575572c5adf524429a413612bcb908f73c22fdf38a884bad7686b1a42bb1854659975ac9d

  • memory/2452-86-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2452-88-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB