Analysis

  • max time kernel
    48s
  • max time network
    19s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    22-07-2024 06:41

General

  • Target

    741f69046399705ffda413c8e50e3bf0N.exe

  • Size

    3.4MB

  • MD5

    741f69046399705ffda413c8e50e3bf0

  • SHA1

    b568d59d3c632f9741358069a52a48e706b832f4

  • SHA256

    1cf82619e0539cd70c70580cc007de453b02f83bb67c92b89ab0a8d17995956f

  • SHA512

    d2eeed717bfb0eb8fc1a5484a1fcefe619992ecc7064cc3d79a1a56f7dc8d83575233c302a04bd4d00c26967c9ab388007d35a3d071a21d156e9901f54a11bd8

  • SSDEEP

    49152:q8GYg3V1HMoBdP3cz/c8xuw4943ZSY+hlc+R6poDVF2r5Bhvf0WLnTT3AcW:YHMoBdP3cz/csd4EpmIv3Af

Malware Config

Signatures

  • Detect Neshta payload 6 IoCs
  • Neshta

    Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

  • 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 2 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).

  • Modifies registry class 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\741f69046399705ffda413c8e50e3bf0N.exe
    "C:\Users\Admin\AppData\Local\Temp\741f69046399705ffda413c8e50e3bf0N.exe"
    1⤵
    • Loads dropped DLL
    • Modifies system executable filetype association
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:2472
    • C:\Users\Admin\AppData\Local\Temp\3582-490\741f69046399705ffda413c8e50e3bf0N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\741f69046399705ffda413c8e50e3bf0N.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetWindowsHookEx
      PID:2324

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\741f69046399705ffda413c8e50e3bf0N.exe

    Filesize

    3.4MB

    MD5

    8b80de24a258879554a2c269f3f83b1c

    SHA1

    9d712d37b0cc0ba17b99a97852c527a05d9f5848

    SHA256

    269deb964615b03443f968460c625f4ab7ceb7315a276e91cbb95d6c9f778093

    SHA512

    4bab2f65a1afcac79bc4917c79ee0424db997d0ba78e5d8e2ccc0cb7d8cfd37c6176d7ba3fab8ed92929015e2aeac7457e9d2089e41cbe22321983d803e583b5

  • memory/2472-84-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2472-85-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2472-86-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2472-87-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2472-89-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB