Analysis

  • max time kernel
    93s
  • max time network
    94s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16-12-2024 18:52

General

  • Target

    e9104784bd7f53d1ef9cf95fd51f1f180ca349120cdaa136d7db1a9089ef7318N.exe

  • Size

    905KB

  • MD5

    cc0a9cd17a39403847254d3a6a853730

  • SHA1

    1225545676e2bad4e18c91b3309e54c69e005682

  • SHA256

    e9104784bd7f53d1ef9cf95fd51f1f180ca349120cdaa136d7db1a9089ef7318

  • SHA512

    6dd52f21db02aad132a6f690ab4da0043769d243dfd63418be8609107f66df0eb7e993841acc541ab64f05703e8747d1ac510131c8617e7ed82e495dfa135a76

  • SSDEEP

    12288:mzydnyXuxkAWBB6mqS4bs++tNEKMR6/97aU2oDo2TN6m:maxkAWBHxLtNnMRmAU2ibB

Malware Config

Signatures

  • 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 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 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e9104784bd7f53d1ef9cf95fd51f1f180ca349120cdaa136d7db1a9089ef7318N.exe
    "C:\Users\Admin\AppData\Local\Temp\e9104784bd7f53d1ef9cf95fd51f1f180ca349120cdaa136d7db1a9089ef7318N.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:920
    • C:\Users\Admin\AppData\Local\Temp\3582-490\e9104784bd7f53d1ef9cf95fd51f1f180ca349120cdaa136d7db1a9089ef7318N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\e9104784bd7f53d1ef9cf95fd51f1f180ca349120cdaa136d7db1a9089ef7318N.exe"
      2⤵
      • Executes dropped EXE
      PID:2008

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

    568424d95b90ad4bebfd89e57c086fff

    SHA1

    c9d9bc1ac626ebdfa20fd9d75203242edff26e09

    SHA256

    c6619e71a161e7d30201c8b7f66075ce8cada6b7219b56e5b9fd988a38b2bc4d

    SHA512

    4d40f170030efae3b1f7e85b926462dc3fd86688ce757e843fcec52c720489f160503eb446a777d494403a0e3607f5ef9c7b6a66c6d2e6ced2b4ba10138c151b

  • C:\Users\Admin\AppData\Local\Temp\3582-490\e9104784bd7f53d1ef9cf95fd51f1f180ca349120cdaa136d7db1a9089ef7318N.exe

    Filesize

    864KB

    MD5

    e3c6f12d88bc25f598ec9423860f3580

    SHA1

    99f56fa2aaee52d6ccf989fc03d7b8c7a9cedb2b

    SHA256

    fa9c260dd2ba4e94294d15bac6079029c691e70ac1edd77b23519c5e3e3bfe2a

    SHA512

    b6b3fbc131ab4f6d9181d47c14628e9fb4b38fd5c5c039d7cf464b2b10f10f2819f340d723e7efe2f2b203e9609442ad26c73fe0a0d9b9bc699cd8911fb3d2aa

  • memory/920-94-0x0000000000400000-0x0000000000446000-memory.dmp

    Filesize

    280KB

  • memory/920-95-0x0000000000400000-0x0000000000446000-memory.dmp

    Filesize

    280KB

  • memory/920-97-0x0000000000400000-0x0000000000446000-memory.dmp

    Filesize

    280KB