Analysis

  • max time kernel
    118s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240705-en
  • resource tags

    arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
  • submitted
    23-07-2024 03:10

General

  • Target

    583d44ff74a975d38462c7fb65cb1300N.exe

  • Size

    873KB

  • MD5

    583d44ff74a975d38462c7fb65cb1300

  • SHA1

    c963606ca60a0cdd41a1eb64e3503a306d89f4bf

  • SHA256

    0e56ebe4b5a470a3293b0d27abf364b49b545437806c8bc654887c19c51594f4

  • SHA512

    2a103b2d0d0263775bdd0a89c175b14c8be5987fe6b442a88d3e52394104fa09f6f0f714fa5b4bf50847a730d89f603e4fbf9fd8d3224c79e90542e3958d549f

  • SSDEEP

    12288:3dTaB3d+aIjAHvbNEycB1QPXY+SW6XHI46mJiAPxgot6R375cK375cK375cK375X:3Za/+a1jVo+4WApg4w37H37H37H37V

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.

  • 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 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 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\583d44ff74a975d38462c7fb65cb1300N.exe
    "C:\Users\Admin\AppData\Local\Temp\583d44ff74a975d38462c7fb65cb1300N.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:2680
    • C:\Users\Admin\AppData\Local\Temp\3582-490\583d44ff74a975d38462c7fb65cb1300N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\583d44ff74a975d38462c7fb65cb1300N.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetWindowsHookEx
      PID:2516

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\583d44ff74a975d38462c7fb65cb1300N.exe

    Filesize

    832KB

    MD5

    d94331c2f073a4678ef09915919e25f9

    SHA1

    106c2d6585a3b8624e43279e6a20090b6420facd

    SHA256

    37f110ef2cec189c510bdea97c25dec03bbdcfd50a9bb4090e7a40cee5638a95

    SHA512

    35c28d3447b45a65bc122b00fcd8f890b616600470556937d492ff0bdad62b8592254a6525d2f8136538a419ed9b3c145f5c4ec874e139b111fe5fec39d6e488

  • memory/2680-83-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2680-85-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB