Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-11-2024 05:31

General

  • Target

    f1fa59a0902447d85c6a802d040f17cdbeee55d966a126d6acca52b57e69db68.exe

  • Size

    98KB

  • MD5

    622d9767f883d4a99aa62c062f40ca7c

  • SHA1

    d56932f9fb419a1e7019738620729c637e6720a9

  • SHA256

    f1fa59a0902447d85c6a802d040f17cdbeee55d966a126d6acca52b57e69db68

  • SHA512

    e6686e90daed66ea7ea4d8c95150eedf05ddc39d1776b673445f5cc94ed8ceb031e5985853e00ff343c7381416f893227dad18017acbeeae2c8cfae1e4b09c57

  • SSDEEP

    1536:yxqjQ+P04wsZLnDrCjufyBeHzCqYghspGTDMunDr5E0d:zr8WDrCC6B8OVSr9Dr5E0d

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\f1fa59a0902447d85c6a802d040f17cdbeee55d966a126d6acca52b57e69db68.exe
    "C:\Users\Admin\AppData\Local\Temp\f1fa59a0902447d85c6a802d040f17cdbeee55d966a126d6acca52b57e69db68.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:1448
    • C:\Users\Admin\AppData\Local\Temp\3582-490\f1fa59a0902447d85c6a802d040f17cdbeee55d966a126d6acca52b57e69db68.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\f1fa59a0902447d85c6a802d040f17cdbeee55d966a126d6acca52b57e69db68.exe"
      2⤵
      • Executes dropped EXE
      PID:4608

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroRd32.exe

    Filesize

    2.4MB

    MD5

    d9e8a1fa55faebd36ed2342fedefbedd

    SHA1

    c25cc7f0035488de9c5df0121a09b5100e1c28e9

    SHA256

    bd7696911d75a9a35dfd125b24cb95003f1e9598592df47fa23a2568986a4a9a

    SHA512

    134644c68bd04536e9ea0a5da6e334d36b1ce8012a061fa6dabd31f85c16a1ac9eee8c40fee3d55f25c4d4edf0672de8ce204e344c800361cbcff092c09d7a33

  • C:\Users\Admin\AppData\Local\Temp\3582-490\f1fa59a0902447d85c6a802d040f17cdbeee55d966a126d6acca52b57e69db68.exe

    Filesize

    57KB

    MD5

    3ab5a53d9fbd505d64f61403f2d48884

    SHA1

    00f5005a0826700b13cdd520b30299b6a0da3d17

    SHA256

    8472ac8cad3c5bb95eae534109b23a85df25c2d4c2ebb05215795eb8beaefac1

    SHA512

    3e139ee00be9a3e3d64f97c67670dc7cd20baca0b3af1418f96c75d2b27febb5e1e13c6dd030157462f10ac130971dd39afa1535fe19ffe01019184c38b030c4

  • memory/1448-96-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1448-97-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1448-99-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB