Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20230712-en
  • resource tags

    arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
  • submitted
    08-08-2023 16:32

General

  • Target

    99d3ab2bfa0f9ca5caa54a99dbc5d049_cryptolocker_JC.exe

  • Size

    73KB

  • MD5

    99d3ab2bfa0f9ca5caa54a99dbc5d049

  • SHA1

    61a7b99b7b1c9504614f693aabfcc2df4e526052

  • SHA256

    cbaf7f668a92544d85d9618efc025610ec4ec5fa752a9a65c90893c685e755e2

  • SHA512

    458db7d0ea500b344ea8bbdc30ebc34d2f98a32323aa906f4382241910109ae5cf3b09f31f2c98a2d7d733017d1ec67c25acbef885fec1b679f5997185fc08da

  • SSDEEP

    1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJNpsAnJYqdIR+nD:ZVxkGOtEvwDpjcNB

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\99d3ab2bfa0f9ca5caa54a99dbc5d049_cryptolocker_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\99d3ab2bfa0f9ca5caa54a99dbc5d049_cryptolocker_JC.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:3024
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:2908

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    73KB

    MD5

    981c002cb67d5aec36d8e8b5f9a07a72

    SHA1

    43d69a922649be0134599dd834f93ab53f98eb63

    SHA256

    305930ff8fe3d7998805e977463baaa4986139c87037f7a27cd74d1afaf3d402

    SHA512

    d8bf6da702672970df068e6154d4231ad8928aba37b458f22092491b064bd90e4a0c7714f63be788137d94a9d38383bec2ff6981b8096e33822aebe12bdad938

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

    Filesize

    73KB

    MD5

    981c002cb67d5aec36d8e8b5f9a07a72

    SHA1

    43d69a922649be0134599dd834f93ab53f98eb63

    SHA256

    305930ff8fe3d7998805e977463baaa4986139c87037f7a27cd74d1afaf3d402

    SHA512

    d8bf6da702672970df068e6154d4231ad8928aba37b458f22092491b064bd90e4a0c7714f63be788137d94a9d38383bec2ff6981b8096e33822aebe12bdad938

  • \Users\Admin\AppData\Local\Temp\misid.exe

    Filesize

    73KB

    MD5

    981c002cb67d5aec36d8e8b5f9a07a72

    SHA1

    43d69a922649be0134599dd834f93ab53f98eb63

    SHA256

    305930ff8fe3d7998805e977463baaa4986139c87037f7a27cd74d1afaf3d402

    SHA512

    d8bf6da702672970df068e6154d4231ad8928aba37b458f22092491b064bd90e4a0c7714f63be788137d94a9d38383bec2ff6981b8096e33822aebe12bdad938

  • memory/2908-68-0x0000000000230000-0x0000000000233000-memory.dmp

    Filesize

    12KB

  • memory/2908-71-0x00000000002F0000-0x00000000002F6000-memory.dmp

    Filesize

    24KB

  • memory/2908-70-0x0000000000230000-0x0000000000236000-memory.dmp

    Filesize

    24KB

  • memory/2908-78-0x0000000000230000-0x0000000000233000-memory.dmp

    Filesize

    12KB

  • memory/3024-54-0x0000000000440000-0x0000000000446000-memory.dmp

    Filesize

    24KB

  • memory/3024-55-0x0000000000440000-0x0000000000446000-memory.dmp

    Filesize

    24KB

  • memory/3024-56-0x0000000000470000-0x0000000000476000-memory.dmp

    Filesize

    24KB