Analysis

  • max time kernel
    281s
  • max time network
    365s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    29/11/2022, 03:31

General

  • Target

    671bd8ef688ebeb2b6cfe45c2fd4fb1edf28ab25bfa67f0abfac9d4f1059b63d.exe

  • Size

    148KB

  • MD5

    627247e960aebf36a834008be778e5f0

  • SHA1

    cdccf9379ae7d76f4584853c7b68b1c76d29318b

  • SHA256

    671bd8ef688ebeb2b6cfe45c2fd4fb1edf28ab25bfa67f0abfac9d4f1059b63d

  • SHA512

    9b6187cce9c43879a96c3d8d03c816288ddc97232408f85e1a5950e8916e2a43eed8aeffeb34f85cc992c6ed00b2adf81699720f282ff13a3490f7d07a922332

  • SSDEEP

    1536:QBeaxAhsGXkR1SV++mRR0cL+iOJsz5czE4M52BoSHvSC3T4Gx4MZ+VSA:MH1rZRRTLz5cg4aY+IA

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 58 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\671bd8ef688ebeb2b6cfe45c2fd4fb1edf28ab25bfa67f0abfac9d4f1059b63d.exe
    "C:\Users\Admin\AppData\Local\Temp\671bd8ef688ebeb2b6cfe45c2fd4fb1edf28ab25bfa67f0abfac9d4f1059b63d.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:976
    • C:\Users\Admin\fouyi.exe
      "C:\Users\Admin\fouyi.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:704

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\fouyi.exe

    Filesize

    148KB

    MD5

    be5e164df158b04b4574f074116dfb59

    SHA1

    044b2022df78e4b35b5fe39ea345cf9a46aecb5b

    SHA256

    3f881515b43397e5aac3a4b88dc3d5b200510c8efdcd998e3812a29d16dd3e33

    SHA512

    f2aec20ebef02b4116aa81ad6c829687e558ed515c56a1512b2320a4cd065e7e9c898ad4394a7c2c7643074192dae480e8f2034d57fb33dc87f599ef95eda9ad

  • C:\Users\Admin\fouyi.exe

    Filesize

    148KB

    MD5

    be5e164df158b04b4574f074116dfb59

    SHA1

    044b2022df78e4b35b5fe39ea345cf9a46aecb5b

    SHA256

    3f881515b43397e5aac3a4b88dc3d5b200510c8efdcd998e3812a29d16dd3e33

    SHA512

    f2aec20ebef02b4116aa81ad6c829687e558ed515c56a1512b2320a4cd065e7e9c898ad4394a7c2c7643074192dae480e8f2034d57fb33dc87f599ef95eda9ad

  • \Users\Admin\fouyi.exe

    Filesize

    148KB

    MD5

    be5e164df158b04b4574f074116dfb59

    SHA1

    044b2022df78e4b35b5fe39ea345cf9a46aecb5b

    SHA256

    3f881515b43397e5aac3a4b88dc3d5b200510c8efdcd998e3812a29d16dd3e33

    SHA512

    f2aec20ebef02b4116aa81ad6c829687e558ed515c56a1512b2320a4cd065e7e9c898ad4394a7c2c7643074192dae480e8f2034d57fb33dc87f599ef95eda9ad

  • \Users\Admin\fouyi.exe

    Filesize

    148KB

    MD5

    be5e164df158b04b4574f074116dfb59

    SHA1

    044b2022df78e4b35b5fe39ea345cf9a46aecb5b

    SHA256

    3f881515b43397e5aac3a4b88dc3d5b200510c8efdcd998e3812a29d16dd3e33

    SHA512

    f2aec20ebef02b4116aa81ad6c829687e558ed515c56a1512b2320a4cd065e7e9c898ad4394a7c2c7643074192dae480e8f2034d57fb33dc87f599ef95eda9ad

  • memory/704-67-0x0000000000400000-0x000000000042F000-memory.dmp

    Filesize

    188KB

  • memory/704-72-0x0000000000400000-0x000000000042F000-memory.dmp

    Filesize

    188KB

  • memory/976-56-0x0000000000400000-0x000000000042F000-memory.dmp

    Filesize

    188KB

  • memory/976-57-0x0000000076201000-0x0000000076203000-memory.dmp

    Filesize

    8KB

  • memory/976-65-0x0000000002D50000-0x0000000002D7F000-memory.dmp

    Filesize

    188KB

  • memory/976-66-0x0000000002D50000-0x0000000002D7F000-memory.dmp

    Filesize

    188KB

  • memory/976-69-0x0000000000400000-0x000000000042F000-memory.dmp

    Filesize

    188KB

  • memory/976-71-0x0000000002D50000-0x0000000002D7F000-memory.dmp

    Filesize

    188KB

  • memory/976-70-0x0000000002D50000-0x0000000002D7F000-memory.dmp

    Filesize

    188KB