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Analysis

  • max time kernel
    150s
  • max time network
    52s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    01/12/2022, 22:47

General

  • Target

    bb8b46dd59001b84f72a65bc93f40e38a9efe21cb8b20ae9d92999ea86009929.exe

  • Size

    248KB

  • MD5

    b43a81fea8adba145c3afb9aebc5ca0a

  • SHA1

    64e72ed7ae7de7e865fc20f90ca9acfe42a61a74

  • SHA256

    bb8b46dd59001b84f72a65bc93f40e38a9efe21cb8b20ae9d92999ea86009929

  • SHA512

    27ac3c69b2e7db7b81314ddaa5bdee0288d2ff4cc3587de8c9264be6ec3de084ab0af8c311ca5330f7f1672bbf691b56fb46c482d26e7190c685fdbe548fb1aa

  • SSDEEP

    6144:wKB56UxwGQpNnVN8KqzeLM+8MvrLHHx5SQlibjXGWNkolay4p4bH8uO:uHpNnlPICrDS0ibLG/l

Score
10/10

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 54 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bb8b46dd59001b84f72a65bc93f40e38a9efe21cb8b20ae9d92999ea86009929.exe
    "C:\Users\Admin\AppData\Local\Temp\bb8b46dd59001b84f72a65bc93f40e38a9efe21cb8b20ae9d92999ea86009929.exe"
    1⤵
    • Modifies visiblity of hidden/system files in Explorer
    • Loads dropped DLL
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1544
    • C:\Users\Admin\vuoxu.exe
      "C:\Users\Admin\vuoxu.exe"
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:900

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\vuoxu.exe

    Filesize

    248KB

    MD5

    be35dd1500a4ef165628d36789e210c4

    SHA1

    c3da3edf7efce62f50334f06cf563166d5277549

    SHA256

    510febcdce8048204403332d6c4e39cd18108a762011cd490630d924dd6dd983

    SHA512

    38299d18a7d0de6cb99cf59fe030430108279c4f3a8d24a58316609d9787bddab8037da25c209566b061de58772325a46f81b7416f4039d426f32d427b7c41ca

  • C:\Users\Admin\vuoxu.exe

    Filesize

    248KB

    MD5

    be35dd1500a4ef165628d36789e210c4

    SHA1

    c3da3edf7efce62f50334f06cf563166d5277549

    SHA256

    510febcdce8048204403332d6c4e39cd18108a762011cd490630d924dd6dd983

    SHA512

    38299d18a7d0de6cb99cf59fe030430108279c4f3a8d24a58316609d9787bddab8037da25c209566b061de58772325a46f81b7416f4039d426f32d427b7c41ca

  • \Users\Admin\vuoxu.exe

    Filesize

    248KB

    MD5

    be35dd1500a4ef165628d36789e210c4

    SHA1

    c3da3edf7efce62f50334f06cf563166d5277549

    SHA256

    510febcdce8048204403332d6c4e39cd18108a762011cd490630d924dd6dd983

    SHA512

    38299d18a7d0de6cb99cf59fe030430108279c4f3a8d24a58316609d9787bddab8037da25c209566b061de58772325a46f81b7416f4039d426f32d427b7c41ca

  • \Users\Admin\vuoxu.exe

    Filesize

    248KB

    MD5

    be35dd1500a4ef165628d36789e210c4

    SHA1

    c3da3edf7efce62f50334f06cf563166d5277549

    SHA256

    510febcdce8048204403332d6c4e39cd18108a762011cd490630d924dd6dd983

    SHA512

    38299d18a7d0de6cb99cf59fe030430108279c4f3a8d24a58316609d9787bddab8037da25c209566b061de58772325a46f81b7416f4039d426f32d427b7c41ca

  • memory/1544-56-0x0000000075681000-0x0000000075683000-memory.dmp

    Filesize

    8KB