Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14-03-2024 00:46

General

  • Target

    f6f0084d9162b1ef652da022b157379b7be7e102b50c6b3d537a239633c8d76d.exe

  • Size

    26KB

  • MD5

    4fff1f071abc93be66455b2adcd22c63

  • SHA1

    4ef8b2fe43845189e41dda7e1a07d668ea69cbd9

  • SHA256

    f6f0084d9162b1ef652da022b157379b7be7e102b50c6b3d537a239633c8d76d

  • SHA512

    fecdeebd7881deafd643e4a8637cd5cf0a97bc9ca0f65c56c9c6b34b6436beba25c4ec687a64c78e4e681368bbb1003043795d3b574c42753bd16f1268a77aea

  • SSDEEP

    768:qq3G3q83wdv7GLGS1R9TNoINEx9jnhwrt:Jkq83wdv7GtD

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops file in System32 directory 64 IoCs
  • Drops file in Program Files directory 4 IoCs
  • Drops file in Windows directory 44 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer settings 1 TTPs 32 IoCs
  • Modifies registry class 2 IoCs
  • Opens file in notepad (likely ransom note) 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 16 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f6f0084d9162b1ef652da022b157379b7be7e102b50c6b3d537a239633c8d76d.exe
    "C:\Users\Admin\AppData\Local\Temp\f6f0084d9162b1ef652da022b157379b7be7e102b50c6b3d537a239633c8d76d.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:2660
    • C:\Users\Admin\AppData\Local\Temp\Krnl32.exe
      "C:\Users\Admin\AppData\Local\Temp\Krnl32.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops file in System32 directory
      • Drops file in Program Files directory
      • Drops file in Windows directory
      • Suspicious use of WriteProcessMemory
      PID:4252
      • C:\Program Files\Internet Explorer\Iexplore.exe
        "C:\Program Files\Internet Explorer\Iexplore.exe" http://wwp.icq.com/scripts/WWPMsg.dll?from=M4TrIx&fromemail=_&subject=MATRIX&body=THE%20MATRIX%20HAS%20COME...&to=90001321%20HTTP/1.0
        3⤵
        • Modifies Internet Explorer settings
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:3732
        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3732 CREDAT:17410 /prefetch:2
          4⤵
          • Modifies Internet Explorer settings
          • Modifies registry class
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:3432
    • C:\Windows\SysWOW64\NOTEPAD.EXE
      "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Temp\HELPME.TXT
      2⤵
      • Opens file in notepad (likely ransom note)
      PID:2616

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\ver23BF.tmp

    Filesize

    15KB

    MD5

    1a545d0052b581fbb2ab4c52133846bc

    SHA1

    62f3266a9b9925cd6d98658b92adec673cbe3dd3

    SHA256

    557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1

    SHA512

    bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\HT2TD2G4\suggestions[1].en-US

    Filesize

    17KB

    MD5

    5a34cb996293fde2cb7a4ac89587393a

    SHA1

    3c96c993500690d1a77873cd62bc639b3a10653f

    SHA256

    c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

    SHA512

    e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

  • C:\Users\Admin\AppData\Local\Temp\HELPME.TXT

    Filesize

    67B

    MD5

    057798d389930107a381a2690141ac1d

    SHA1

    e44f1c2475c0f2323507e141dcae53ffef51c624

    SHA256

    5ba8c75f08589b808a6e16225ea565734aeeb23edc40894174d2d135f5e8d3d2

    SHA512

    98b40b6a11027974b482cb645718d34c8ee707ad01d6eba05acbf15a3b8d7c762afc08fef6513623fefe6e297d77a838fbb980d944a4a8e864356dfabac473e2

  • C:\Users\Admin\AppData\Local\Temp\Krnl32.exe

    Filesize

    26KB

    MD5

    378b3a5a640591ce7d0670b9402106a4

    SHA1

    8aabe671034bd82407ea81ff525b23588358d4dc

    SHA256

    9c03289ab63d02f84e2114416b68aec1dbbda2bc4485655784599777de8b14ea

    SHA512

    5779bc5ced071e8829658f4b62b13fc4cfd9a31a904de700b2ba9afd1fecb283157d659bfcc6b3c11e357be8089305daf5b98c68db72ec948ad182f2675655cc

  • memory/2660-0-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/2660-20-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/4252-26-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/4252-30-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/4252-22-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/4252-104-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/4252-108-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/4252-14-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/4252-120-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/4252-123-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB