Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    28-10-2024 22:51

General

  • Target

    4b5e1d6be94e7f69d1e51f56cad4e1bf2657ce4bd2a0b48b17d9b0923357c9b3.exe

  • Size

    708KB

  • MD5

    a5e68ec9989692c56066178f1aff88ac

  • SHA1

    7dec0fa05fc341985b29b8812868338a265b5f71

  • SHA256

    4b5e1d6be94e7f69d1e51f56cad4e1bf2657ce4bd2a0b48b17d9b0923357c9b3

  • SHA512

    e9c7519dc770e3c2b83a768c32bc8693d19b95cc65ea7cea6c5b0873dad56d547c07c7c8652d1cd48d583974ba67e4f22d8a76bcc785ea6dfae3c4955f7062c8

  • SSDEEP

    6144:k9GD0G2JJnokaPnFnvngRSR/f6cCZy8ZO7v5YGUsqY:dD0G2JJo7FvgRSR/icCZy8ZO7v5msqY

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 SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4b5e1d6be94e7f69d1e51f56cad4e1bf2657ce4bd2a0b48b17d9b0923357c9b3.exe
    "C:\Users\Admin\AppData\Local\Temp\4b5e1d6be94e7f69d1e51f56cad4e1bf2657ce4bd2a0b48b17d9b0923357c9b3.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:2324
    • C:\Users\Admin\AppData\Local\Temp\3582-490\4b5e1d6be94e7f69d1e51f56cad4e1bf2657ce4bd2a0b48b17d9b0923357c9b3.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\4b5e1d6be94e7f69d1e51f56cad4e1bf2657ce4bd2a0b48b17d9b0923357c9b3.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:2992

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

  • C:\Users\Admin\AppData\Local\Temp\3582-490\4b5e1d6be94e7f69d1e51f56cad4e1bf2657ce4bd2a0b48b17d9b0923357c9b3.exe

    Filesize

    668KB

    MD5

    4ef9f5d303b9800f2b97b154b61f21a7

    SHA1

    8a03adcafba6fb95e79c84ed99e2405a1d42a103

    SHA256

    7003b7c9a73ab3a49fb39c4b1d3b3a26d5f6c81e9593ab92b00d0ec54d47a34c

    SHA512

    9752be55c2e418e500f8d465ca1247937ae157e16497eb758c9306d042728e43fdcebf3b7d72cd85078fbac333d434c4d1b9eacc4e51412cadf692fc9a66b694

  • \PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE

    Filesize

    252KB

    MD5

    9e2b9928c89a9d0da1d3e8f4bd96afa7

    SHA1

    ec66cda99f44b62470c6930e5afda061579cde35

    SHA256

    8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

    SHA512

    2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

  • memory/2324-88-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2324-90-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB