Analysis

  • max time kernel
    150s
  • max time network
    137s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-07-2024 21:47

General

  • Target

    4779e6ebc64484bd3b39356b7ef8f825a417129107822eed5049cb2848ba7e96.exe

  • Size

    220KB

  • MD5

    c081629b0b8f89a3af3f84c9fe1d9de8

  • SHA1

    bdb1701ac91ca314c70805d5714b7edc24d226d7

  • SHA256

    4779e6ebc64484bd3b39356b7ef8f825a417129107822eed5049cb2848ba7e96

  • SHA512

    9d38e82b7d1c9f282451b45eeb7f629067a4954684434d1b53466854b1a78c3e747fc0c7c69c578adf64543e5ca31c39e295a3817493b6cd13c2d09e6dd0688b

  • SSDEEP

    3072:6+WpDfmRfmhz7RjnI52UhCMD98HpKI6GCLOwstyhZFChcssc56FUrgxvbSD4UQr0:wl7+EUhCw9GpKbShcHUak

Score
9/10

Malware Config

Signatures

  • Renames multiple (1808) files with added filename extension

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

  • Executes dropped EXE 2 IoCs
  • Drops file in System32 directory 2 IoCs
  • Drops file in Program Files directory 64 IoCs
  • 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.

  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4779e6ebc64484bd3b39356b7ef8f825a417129107822eed5049cb2848ba7e96.exe
    "C:\Users\Admin\AppData\Local\Temp\4779e6ebc64484bd3b39356b7ef8f825a417129107822eed5049cb2848ba7e96.exe"
    1⤵
    • Drops file in System32 directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2632
    • C:\Windows\SysWOW64\Zombie.exe
      "C:\Windows\system32\Zombie.exe"
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      PID:2080
    • C:\Users\Admin\AppData\Local\Temp\_choco.exe
      "_choco.exe"
      2⤵
      • Executes dropped EXE
      PID:2996

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\$Recycle.Bin\S-1-5-21-2990742725-2267136959-192470804-1000\desktop.ini.exe

    Filesize

    78KB

    MD5

    d4b9815c4b2507d20443327c6fd2550e

    SHA1

    4ec5924676b7c83e667b1663e8d59657b46f75c7

    SHA256

    f8e99ece0e7007d8a511fded875ff4390e8a7cf5cab0723d0ac078393d0840c1

    SHA512

    399599b1966400e989585bb15a5e4fde3ce6856baa453827746c5ebfdab16b5e66021fb6ec2f16bd805ec0f438c087e93f1483be40cfacbc04fa13f095261717

  • C:\Users\Admin\AppData\Local\Temp\_choco.exe

    Filesize

    142KB

    MD5

    81a7c181639679983efb07c2dea2ebd0

    SHA1

    93370e8e5cb0d89bf6786445f94dd02dbb84b574

    SHA256

    8320c7f90f65b48e4031b680506a9579751789ded4d90fa2fbfc2fb7db7e3ec8

    SHA512

    599cca13e527c92cdf88df06ed8a01eee1bc602c565ab69e251f7414e19833ce42f0453771bfdf27d16f9f70112835b599d26a6ed92901fdf86bbdf8adf4d2f7

  • C:\Windows\SysWOW64\Zombie.exe

    Filesize

    78KB

    MD5

    45f9aea3ddc41820597c24315bb0dd3d

    SHA1

    b07a48f75b7e648ec62696f2ab68e5efb40e47e9

    SHA256

    3c002fe87bdfcf60dd59b69023cbd3ccd4de1ea41144cc37fcb51955d7b5ac1f

    SHA512

    f6199a5c8fb6a3d304518df3cf73e03d2ed8cb34b8b4798e7262c38cdd44e4c90b5c2e91d96bb4966df3806bac2536b94be262d8a3113ec725ce8991ad5222c7

  • memory/2996-19-0x00007FFF66DB3000-0x00007FFF66DB5000-memory.dmp

    Filesize

    8KB

  • memory/2996-20-0x0000000000300000-0x0000000000328000-memory.dmp

    Filesize

    160KB