Analysis

  • max time kernel
    119s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    25-11-2024 21:04

General

  • Target

    a9ad6fd1de69c9a48c4a06cf6bd2077992cad448d746e167f420acc3af63e697N.exe

  • Size

    1.8MB

  • MD5

    3b5e98470608e157e0772fa03b636820

  • SHA1

    149a599aa12e5a001492805d50b9ba3c0c634f83

  • SHA256

    a9ad6fd1de69c9a48c4a06cf6bd2077992cad448d746e167f420acc3af63e697

  • SHA512

    26c0964165990692249a031c3496f2df4c156c037136c78434c4a9735245b166435bd2da44dc6d8b141e88e6daf1ec43cedfc71a20e777f214257f23092cbfbb

  • SSDEEP

    49152:W2wSTYv4g8PqxdSi7ybuzEnWjWMwH1aIyJ:x5TYv4g8Pqx4i7yNsWMwH1GJ

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 2 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 3 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 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a9ad6fd1de69c9a48c4a06cf6bd2077992cad448d746e167f420acc3af63e697N.exe
    "C:\Users\Admin\AppData\Local\Temp\a9ad6fd1de69c9a48c4a06cf6bd2077992cad448d746e167f420acc3af63e697N.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:1960
    • C:\Users\Admin\AppData\Local\Temp\3582-490\a9ad6fd1de69c9a48c4a06cf6bd2077992cad448d746e167f420acc3af63e697N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\a9ad6fd1de69c9a48c4a06cf6bd2077992cad448d746e167f420acc3af63e697N.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2036
      • C:\Users\Admin\AppData\Local\Temp\is-RFDVK.tmp\a9ad6fd1de69c9a48c4a06cf6bd2077992cad448d746e167f420acc3af63e697N.tmp
        "C:\Users\Admin\AppData\Local\Temp\is-RFDVK.tmp\a9ad6fd1de69c9a48c4a06cf6bd2077992cad448d746e167f420acc3af63e697N.tmp" /SL5="$90152,1591786,58368,C:\Users\Admin\AppData\Local\Temp\3582-490\a9ad6fd1de69c9a48c4a06cf6bd2077992cad448d746e167f420acc3af63e697N.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:1964

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\a9ad6fd1de69c9a48c4a06cf6bd2077992cad448d746e167f420acc3af63e697N.exe

    Filesize

    1.8MB

    MD5

    0fb9821997b26699a73d431c3ea8efef

    SHA1

    2d38ee02eaa97e0c475f2ec958231972fc2ec965

    SHA256

    588ba24f51abf98c3d9af3bacd66c7e8edb584e3bd9d48d0cddbf58698ae7500

    SHA512

    a2aa710382cd82d80b303a28ce1db8b14b523fdc0ed379ada9c470ff3be9438d427f72c1d5b3529ad367a57d2ee9ead1cdc29a5328c8d7a9ab2b52459c97a1cb

  • \Users\Admin\AppData\Local\Temp\is-RFDVK.tmp\a9ad6fd1de69c9a48c4a06cf6bd2077992cad448d746e167f420acc3af63e697N.tmp

    Filesize

    702KB

    MD5

    1afbd25db5c9a90fe05309f7c4fbcf09

    SHA1

    baf330b5c249ca925b4ea19a52fe8b2c27e547fa

    SHA256

    3bb0ee5569fe5453c6b3fa25aa517b925d4f8d1f7ba3475e58fa09c46290658c

    SHA512

    3a448f06862c6d163fd58b68b836d866ae513e04a69774abf5a0c5b7df74f5b9ee37240083760185618c5068bf93e7fd812e76b3e530639111fb1d74f4d28419

  • memory/1960-98-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1960-94-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1964-20-0x0000000000400000-0x00000000004BF000-memory.dmp

    Filesize

    764KB

  • memory/1964-110-0x0000000000400000-0x00000000004BF000-memory.dmp

    Filesize

    764KB

  • memory/1964-118-0x0000000000400000-0x00000000004BF000-memory.dmp

    Filesize

    764KB

  • memory/1964-96-0x0000000000400000-0x00000000004BF000-memory.dmp

    Filesize

    764KB

  • memory/1964-116-0x0000000000400000-0x00000000004BF000-memory.dmp

    Filesize

    764KB

  • memory/1964-100-0x0000000000400000-0x00000000004BF000-memory.dmp

    Filesize

    764KB

  • memory/1964-102-0x0000000000400000-0x00000000004BF000-memory.dmp

    Filesize

    764KB

  • memory/1964-104-0x0000000000400000-0x00000000004BF000-memory.dmp

    Filesize

    764KB

  • memory/1964-106-0x0000000000400000-0x00000000004BF000-memory.dmp

    Filesize

    764KB

  • memory/1964-108-0x0000000000400000-0x00000000004BF000-memory.dmp

    Filesize

    764KB

  • memory/1964-114-0x0000000000400000-0x00000000004BF000-memory.dmp

    Filesize

    764KB

  • memory/1964-112-0x0000000000400000-0x00000000004BF000-memory.dmp

    Filesize

    764KB

  • memory/2036-9-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2036-13-0x0000000000401000-0x000000000040C000-memory.dmp

    Filesize

    44KB

  • memory/2036-95-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB