Analysis

  • max time kernel
    117s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    29-11-2024 02:45

General

  • Target

    92af0f6649cfe62251f65331f3b2778e3aff288dee36749e19444faba6933944N.exe

  • Size

    167KB

  • MD5

    05641b42390fc9e4152c60311ffc4e00

  • SHA1

    54d2aec893e1b20b759bc4004bb6ad0085ca51d6

  • SHA256

    92af0f6649cfe62251f65331f3b2778e3aff288dee36749e19444faba6933944

  • SHA512

    0366cd5dccf535b774d6f21292e8c967605d5357ff33f2dcfd464247a87d2c60547f3d6f7bad40d5b4baedb539139d858ff06f3bae7ff7a3a9d256ddb005496d

  • SSDEEP

    3072:sr85CcQooYYzFUNUsyl4QTEFhYN91BZBK3H25:k9FsylBHq3S

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 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 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\92af0f6649cfe62251f65331f3b2778e3aff288dee36749e19444faba6933944N.exe
    "C:\Users\Admin\AppData\Local\Temp\92af0f6649cfe62251f65331f3b2778e3aff288dee36749e19444faba6933944N.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:2744
    • C:\Users\Admin\AppData\Local\Temp\3582-490\92af0f6649cfe62251f65331f3b2778e3aff288dee36749e19444faba6933944N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\92af0f6649cfe62251f65331f3b2778e3aff288dee36749e19444faba6933944N.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2792

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\92af0f6649cfe62251f65331f3b2778e3aff288dee36749e19444faba6933944N.exe

    Filesize

    126KB

    MD5

    4999fc6d50472421424334b0bb86d65a

    SHA1

    6095e44e0eb23ca6999bfc23030d7005d49b4f68

    SHA256

    efee757025f18f3b8a6409bc3b760e431632d79a4b90734dedf50c4ed75564ba

    SHA512

    7767b11a2f00b270c090e958c808f13298e7bc4899c11d1cbfcb66f780e15a3d1cf8c4734e5544bcb9a6e1c9b1a8dcdf4cf98b448c50deac8e62d30297fc90b0

  • memory/2744-84-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2744-86-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB