Analysis

  • max time kernel
    40s
  • max time network
    42s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-07-2024 12:48

General

  • Target

    HawkEye.exe

  • Size

    232KB

  • MD5

    60fabd1a2509b59831876d5e2aa71a6b

  • SHA1

    8b91f3c4f721cb04cc4974fc91056f397ae78faa

  • SHA256

    1dacdc296fd6ef6ba817b184cce9901901c47c01d849adfa4222bfabfed61838

  • SHA512

    3e842a7d47b32942adb936cae13293eddf1a6b860abcfe7422d0fb73098264cc95656b5c6d9980fad1bf8b5c277cd846c26acaba1bef441582caf34eb1e5295a

  • SSDEEP

    3072:BMhIBKH7j7DzQi7y5bvl4YAbdY9KWvwn7XHMzqEOf64CEEl64HBVdGXPKD:BMh5H7j5g54YZKXoxOuEEl64HZAi

Malware Config

Signatures

  • Chimera 64 IoCs

    Ransomware which infects local and network files, often distributed via Dropbox links.

  • Chimera Ransomware Loader DLL 1 IoCs

    Drops/unpacks executable file which resembles Chimera's Loader.dll.

  • Renames multiple (3264) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Drops desktop.ini file(s) 27 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Drops file in Program Files directory 64 IoCs
  • Modifies Internet Explorer settings 1 TTPs 16 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\HawkEye.exe
    "C:\Users\Admin\AppData\Local\Temp\HawkEye.exe"
    1⤵
    • Chimera
    • Drops desktop.ini file(s)
    • Drops file in Program Files directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3940
    • C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe" -k "C:\Users\Admin\Downloads\YOUR_FILES_ARE_ENCRYPTED.HTML"
      2⤵
      • Modifies Internet Explorer settings
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2452
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2452 CREDAT:17410 /prefetch:2
        3⤵
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:4584

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files\Java\jdk-1.8\jre\lib\YOUR_FILES_ARE_ENCRYPTED.HTML

    Filesize

    4KB

    MD5

    5f4a05eaa362a9d15601c105270086fb

    SHA1

    a91e9f42f2dce0012f7d3d92e306891eebbabe52

    SHA256

    9e86cbce7d6286911c2ffdc6880de143d06d6062f79c1152047e120bb99f45e4

    SHA512

    6cb9603f8724df3b32a112db55d35ed6cec6678dda9b209518dbd1c7a1f4d9ca006a5c521a1a1b4acfa609bab5cb3e23f90b9ee68901b373ac5b111733f0455c

  • memory/3940-0-0x0000000074E92000-0x0000000074E93000-memory.dmp

    Filesize

    4KB

  • memory/3940-1-0x0000000074E90000-0x0000000075441000-memory.dmp

    Filesize

    5.7MB

  • memory/3940-2-0x0000000074E90000-0x0000000075441000-memory.dmp

    Filesize

    5.7MB

  • memory/3940-3-0x0000000010000000-0x0000000010010000-memory.dmp

    Filesize

    64KB

  • memory/3940-8-0x0000000074E90000-0x0000000075441000-memory.dmp

    Filesize

    5.7MB

  • memory/3940-9-0x0000000004AF0000-0x0000000004B0A000-memory.dmp

    Filesize

    104KB

  • memory/3940-5692-0x0000000074E90000-0x0000000075441000-memory.dmp

    Filesize

    5.7MB

  • memory/3940-5691-0x0000000074E92000-0x0000000074E93000-memory.dmp

    Filesize

    4KB