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Analysis

  • max time kernel
    117s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    26/11/2024, 21:14

General

  • Target

    fb56e0e42ba765db008be8d01581182751b2d3304c1535a25f39fc3d297cc8f2N.exe

  • Size

    489KB

  • MD5

    e3ef21e6986e6d6593bf02cfc7efe7f0

  • SHA1

    50369287f7cff3c378996962c5aa476b189c4c48

  • SHA256

    fb56e0e42ba765db008be8d01581182751b2d3304c1535a25f39fc3d297cc8f2

  • SHA512

    1e2b727a76cc54c6aab006de37828c40d2b5371d59fb0406316a1f4099ce3545181976c6a974b725e416a5c0b0236a7d130ba838f5b366b5cc60f0634c85689e

  • SSDEEP

    6144:k9dre64sO+uM2oO8/n0Nn+aKR2gptO9bfz9IStpM6m16zkCkg3i:Me64h+lznATCCzHtpI1KkCDi

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\fb56e0e42ba765db008be8d01581182751b2d3304c1535a25f39fc3d297cc8f2N.exe
    "C:\Users\Admin\AppData\Local\Temp\fb56e0e42ba765db008be8d01581182751b2d3304c1535a25f39fc3d297cc8f2N.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:576
    • C:\Users\Admin\AppData\Local\Temp\3582-490\fb56e0e42ba765db008be8d01581182751b2d3304c1535a25f39fc3d297cc8f2N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\fb56e0e42ba765db008be8d01581182751b2d3304c1535a25f39fc3d297cc8f2N.exe"
      2⤵
      • Executes dropped EXE
      PID:1680

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\fb56e0e42ba765db008be8d01581182751b2d3304c1535a25f39fc3d297cc8f2N.exe

    Filesize

    449KB

    MD5

    73f72761fc62dd1c4d681f1b3c51769c

    SHA1

    b8fc7769aade14d24444d89d2766f8f1f8fca861

    SHA256

    a06d4878557f82fb021fd315fd337eda49ac6b1664fc40ee76c7f26c4b73551f

    SHA512

    8009f5b908c5ead9d763446d7f617a8d00ead9265fce97acbfcb44df539f6feedc91a9574d9c3f8aaede7861ad6893c75ffec840c9da4afb438efe7120e657f2

  • memory/576-83-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/576-85-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1680-10-0x0000000000270000-0x000000000039D000-memory.dmp

    Filesize

    1.2MB