Analysis

  • max time kernel
    19s
  • max time network
    17s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    25-11-2024 23:01

General

  • Target

    27031eee67a5d47c0cc90e4dc1aa6b415e3d9e66ba0ec8b18c899082d24ea381N.exe

  • Size

    96KB

  • MD5

    395d9e6ed85361a0e9d293b63feae280

  • SHA1

    e9c6d3f651206b73615a7af5e4cbced02beedf6a

  • SHA256

    27031eee67a5d47c0cc90e4dc1aa6b415e3d9e66ba0ec8b18c899082d24ea381

  • SHA512

    0daa2f4a92371923623ab6b0b65e131811a7acfa7ad9a3903b98c910412ad2e12c56e1b846cace11c5c9b9ce2aa157d1ff0e518467e9ba1a07f728d86e01f8d2

  • SSDEEP

    768:eyxqjQl/EMQt4Oei7RwsHxyP7nbxzOQdJvr7MAyAdTmPJbgqcnDcw:JxqjQ+P04wsmJCEr7dU81cw

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 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\27031eee67a5d47c0cc90e4dc1aa6b415e3d9e66ba0ec8b18c899082d24ea381N.exe
    "C:\Users\Admin\AppData\Local\Temp\27031eee67a5d47c0cc90e4dc1aa6b415e3d9e66ba0ec8b18c899082d24ea381N.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:2244
    • C:\Users\Admin\AppData\Local\Temp\3582-490\27031eee67a5d47c0cc90e4dc1aa6b415e3d9e66ba0ec8b18c899082d24ea381N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\27031eee67a5d47c0cc90e4dc1aa6b415e3d9e66ba0ec8b18c899082d24ea381N.exe"
      2⤵
      • Executes dropped EXE
      PID:1500

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\27031eee67a5d47c0cc90e4dc1aa6b415e3d9e66ba0ec8b18c899082d24ea381N.exe

    Filesize

    56KB

    MD5

    c43aa7fa021b3b5554cd0690262210a1

    SHA1

    568c0d269b51f5df85e3545544529c8b8241c2d2

    SHA256

    2479016813a9d754bcc1129d7b5ed9b1c1bd8613e398425cea26b7382b5c4a41

    SHA512

    9dd038ec6f6d653a570082772cf498c0f9da01b79399952cb354b74c16c02a85f2aa7c23e49fe6ae8228e202a953ebb2c3913de5cfa44ca656aecd23ed489c1f

  • memory/2244-83-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2244-85-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB