Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-12-2024 22:36

General

  • Target

    5749771d488ec503366c5ffbf1ac1a6516c57e0105170a403a599ac321f9fa33.exe

  • Size

    439KB

  • MD5

    f99886f8442f8ff2f7acd960751075c1

  • SHA1

    58779ae7d7dbaf2cd3f31da3301d2cdd71bd148f

  • SHA256

    5749771d488ec503366c5ffbf1ac1a6516c57e0105170a403a599ac321f9fa33

  • SHA512

    50dca36619722dd35c1fb1f64a99772534a3a66d30e0a22ff10e0fa8f605ed709175122b0d8f3279a1798966211f17a88d1e542fc52cd4cfe08d17a6ca8c702b

  • SSDEEP

    6144:k9xAF0DHQrVERg1V8mvliJdd+CksH2KOJclTuh984GHf5ZWLgiqJn:VrVToJdd+CD2KOJyub84GHygd9

Malware Config

Signatures

  • Detect Neshta payload 4 IoCs
  • Neshta

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

  • Neshta family
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 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 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5749771d488ec503366c5ffbf1ac1a6516c57e0105170a403a599ac321f9fa33.exe
    "C:\Users\Admin\AppData\Local\Temp\5749771d488ec503366c5ffbf1ac1a6516c57e0105170a403a599ac321f9fa33.exe"
    1⤵
    • Checks computer location settings
    • 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:5044
    • C:\Users\Admin\AppData\Local\Temp\3582-490\5749771d488ec503366c5ffbf1ac1a6516c57e0105170a403a599ac321f9fa33.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\5749771d488ec503366c5ffbf1ac1a6516c57e0105170a403a599ac321f9fa33.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:3912

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROTE~1.EXE

    Filesize

    86KB

    MD5

    3b73078a714bf61d1c19ebc3afc0e454

    SHA1

    9abeabd74613a2f533e2244c9ee6f967188e4e7e

    SHA256

    ded54d1fcca07b6bff2bc3b9a1131eac29ff1f836e5d7a7c5c325ec5abe96e29

    SHA512

    75959d4e8a7649c3268b551a2a378e6d27c0bfb03d2422ebeeb67b0a3f78c079473214057518930f2d72773ce79b106fd2d78405e8e3d8883459dcbb49c163c4

  • C:\Users\Admin\AppData\Local\Temp\3582-490\5749771d488ec503366c5ffbf1ac1a6516c57e0105170a403a599ac321f9fa33.exe

    Filesize

    399KB

    MD5

    a772aaa7d2f3aa81795a5ffdc9ab3f72

    SHA1

    c8815ae6c128a484c14fd5ce89ba24ad8e807358

    SHA256

    4277da2aa506c574f4e92a9a601616680952eb9a710e71fd1f6c4884b4819dc7

    SHA512

    b12e9db1c6118080330c66cd52be9b411144e544f0f77852eb21824b2f110cc16c74324f2c2e3031294664815d7fbe152a9bc4cb40662e54948323672858a77f

  • memory/5044-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/5044-96-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/5044-98-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB