Analysis

  • max time kernel
    118s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    11-12-2024 11:58

General

  • Target

    8988c172ef4817c45a5a5ba5d18b3911e7ee2d53e2b3eb70ad6e03a7a2070be6N.exe

  • Size

    1.2MB

  • MD5

    c87651cb7b56227c17a3322b7893c9c0

  • SHA1

    a8e631190c286abc495c0b03cd12a4836c4665e3

  • SHA256

    8988c172ef4817c45a5a5ba5d18b3911e7ee2d53e2b3eb70ad6e03a7a2070be6

  • SHA512

    9a2f3c58a01f38a2740ca560e7fd8f87dec67959c06e75a37eb919e194eddce1befae727c56af34359e33dd9759eade893c73f79da4160e5e9bf0ed731859c60

  • SSDEEP

    24576:ZBznb0fO1g/A6gXlU5ltWIaaNKckSBtQ8oOettngMlZz6wAhr4:P58GXlOhQ8Qtt7mP4

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 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 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8988c172ef4817c45a5a5ba5d18b3911e7ee2d53e2b3eb70ad6e03a7a2070be6N.exe
    "C:\Users\Admin\AppData\Local\Temp\8988c172ef4817c45a5a5ba5d18b3911e7ee2d53e2b3eb70ad6e03a7a2070be6N.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:1700
    • C:\Users\Admin\AppData\Local\Temp\3582-490\8988c172ef4817c45a5a5ba5d18b3911e7ee2d53e2b3eb70ad6e03a7a2070be6N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\8988c172ef4817c45a5a5ba5d18b3911e7ee2d53e2b3eb70ad6e03a7a2070be6N.exe"
      2⤵
      • Executes dropped EXE
      PID:1940

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\8988c172ef4817c45a5a5ba5d18b3911e7ee2d53e2b3eb70ad6e03a7a2070be6N.exe

    Filesize

    1.2MB

    MD5

    209593bab0129e8ebf9515d81669628b

    SHA1

    1d6d99a555c3b7e9945660c02a8125efcd00996b

    SHA256

    3d9ea6ef07c7a0c5906791bcf1a73043803f1c4acb674559c6135f6077bf8f3f

    SHA512

    576679570275d3af1a2328576c98f8f239ff39b8235ad1713f048f62a8056d9ffd8f7fcabb849374222402e886ea8df2a5f0d8f6ded4f9a07e1dee1d9828d811

  • memory/1700-82-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1700-84-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB