Analysis

  • max time kernel
    151s
  • max time network
    42s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    06/11/2022, 15:23

General

  • Target

    0dbf0728e4831f571e2f688b7e4c91e9fedd2271268af68020e7f3e7a8f17c25.exe

  • Size

    316KB

  • MD5

    0f0793e2f33fe0160b374dbef3b6110d

  • SHA1

    21edfbd5cddb1cbf4bd4c48f65c80075ceaa3b61

  • SHA256

    0dbf0728e4831f571e2f688b7e4c91e9fedd2271268af68020e7f3e7a8f17c25

  • SHA512

    410ec315e146f2180c125421fac49e51cfd3d780bdc3e0cb04e285589c18076155bcb3907e16c1d85c0e5d4b6b2296f9bbc58a37dd87fc07d60b10b1ab952469

  • SSDEEP

    1536:nyRsW6S9+H8HYiH72PrGGUQLJjk/Jj/9/mck8K1JWeNoJkXSCoIx2SN:RW6S9BHkIF/Jg2k

Score
10/10

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 52 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 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0dbf0728e4831f571e2f688b7e4c91e9fedd2271268af68020e7f3e7a8f17c25.exe
    "C:\Users\Admin\AppData\Local\Temp\0dbf0728e4831f571e2f688b7e4c91e9fedd2271268af68020e7f3e7a8f17c25.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:544
    • C:\Users\Admin\tsheuk.exe
      "C:\Users\Admin\tsheuk.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
      • Suspicious use of WriteProcessMemory
      PID:1416

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\tsheuk.exe

    Filesize

    316KB

    MD5

    365d5dc5ef5935053267acd2422caed7

    SHA1

    0329a38344d8acf65c3ecabdabebb3e0e8e538fc

    SHA256

    ebd232c891ac5926c5e000ebb68847f79f79e6b08d2383fcb972a1f54ad4f020

    SHA512

    4fb4291573dd8e5300d54b256aa31236e517e012d99267999f8a0c7d7810057424170a027ddbc4538ddf9cb5b524032e89ebe8cef24e48f87167db677a9f7250

  • C:\Users\Admin\tsheuk.exe

    Filesize

    316KB

    MD5

    365d5dc5ef5935053267acd2422caed7

    SHA1

    0329a38344d8acf65c3ecabdabebb3e0e8e538fc

    SHA256

    ebd232c891ac5926c5e000ebb68847f79f79e6b08d2383fcb972a1f54ad4f020

    SHA512

    4fb4291573dd8e5300d54b256aa31236e517e012d99267999f8a0c7d7810057424170a027ddbc4538ddf9cb5b524032e89ebe8cef24e48f87167db677a9f7250

  • \Users\Admin\tsheuk.exe

    Filesize

    316KB

    MD5

    365d5dc5ef5935053267acd2422caed7

    SHA1

    0329a38344d8acf65c3ecabdabebb3e0e8e538fc

    SHA256

    ebd232c891ac5926c5e000ebb68847f79f79e6b08d2383fcb972a1f54ad4f020

    SHA512

    4fb4291573dd8e5300d54b256aa31236e517e012d99267999f8a0c7d7810057424170a027ddbc4538ddf9cb5b524032e89ebe8cef24e48f87167db677a9f7250

  • \Users\Admin\tsheuk.exe

    Filesize

    316KB

    MD5

    365d5dc5ef5935053267acd2422caed7

    SHA1

    0329a38344d8acf65c3ecabdabebb3e0e8e538fc

    SHA256

    ebd232c891ac5926c5e000ebb68847f79f79e6b08d2383fcb972a1f54ad4f020

    SHA512

    4fb4291573dd8e5300d54b256aa31236e517e012d99267999f8a0c7d7810057424170a027ddbc4538ddf9cb5b524032e89ebe8cef24e48f87167db677a9f7250

  • memory/544-54-0x0000000000400000-0x000000000044B000-memory.dmp

    Filesize

    300KB

  • memory/544-57-0x0000000075A91000-0x0000000075A93000-memory.dmp

    Filesize

    8KB

  • memory/544-65-0x0000000002A30000-0x0000000002A7B000-memory.dmp

    Filesize

    300KB

  • memory/544-66-0x0000000002A30000-0x0000000002A7B000-memory.dmp

    Filesize

    300KB

  • memory/544-69-0x0000000000400000-0x000000000044B000-memory.dmp

    Filesize

    300KB

  • memory/1416-67-0x0000000000400000-0x000000000044B000-memory.dmp

    Filesize

    300KB

  • memory/1416-70-0x0000000000400000-0x000000000044B000-memory.dmp

    Filesize

    300KB