Analysis

  • max time kernel
    153s
  • max time network
    163s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    11-10-2023 13:32

General

  • Target

    2023-08-26_7f8693b45942f4412dfb10781959a6fd_cryptolocker_JC.exe

  • Size

    56KB

  • MD5

    7f8693b45942f4412dfb10781959a6fd

  • SHA1

    9ba048bee9cb8d102806dbe02317958b8c38119c

  • SHA256

    f22d3e6fddc74c05d64b0b0b7b9ecdc8139c9ed9aca398d20f291306ad81fb5d

  • SHA512

    1ddf81d8ddc685dd8af773cde1a6b6a4c0d44ba3f7017f2e4150646a29825221eab9f08fa5faa665efd5acfbf8d1f24396f7ec4ee1f54ce899388cc1001a7678

  • SSDEEP

    1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2EMg:TCjsIOtEvwDpj5HE/OUHnSM3

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\2023-08-26_7f8693b45942f4412dfb10781959a6fd_cryptolocker_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\2023-08-26_7f8693b45942f4412dfb10781959a6fd_cryptolocker_JC.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2620
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:2648

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    56KB

    MD5

    233681ba9be765c4b5a7dfb13ecdfd58

    SHA1

    b45c2af517a75cd13801993b31fb4254c0826b58

    SHA256

    f00ef2e2e996a0ce62f6ce1117bea3675b7e6f4fcfc0abbdbeb16a146a5a7429

    SHA512

    b49cc1ebdc136b4fbe8430ce99c10041f84036fd94e6c8737155be968789a1e7a7ed6bd422fb358ab13b52f46df0282b7182cbe16a34d8dbb40b86a8cfeb6b42

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

    Filesize

    56KB

    MD5

    233681ba9be765c4b5a7dfb13ecdfd58

    SHA1

    b45c2af517a75cd13801993b31fb4254c0826b58

    SHA256

    f00ef2e2e996a0ce62f6ce1117bea3675b7e6f4fcfc0abbdbeb16a146a5a7429

    SHA512

    b49cc1ebdc136b4fbe8430ce99c10041f84036fd94e6c8737155be968789a1e7a7ed6bd422fb358ab13b52f46df0282b7182cbe16a34d8dbb40b86a8cfeb6b42

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

    Filesize

    56KB

    MD5

    233681ba9be765c4b5a7dfb13ecdfd58

    SHA1

    b45c2af517a75cd13801993b31fb4254c0826b58

    SHA256

    f00ef2e2e996a0ce62f6ce1117bea3675b7e6f4fcfc0abbdbeb16a146a5a7429

    SHA512

    b49cc1ebdc136b4fbe8430ce99c10041f84036fd94e6c8737155be968789a1e7a7ed6bd422fb358ab13b52f46df0282b7182cbe16a34d8dbb40b86a8cfeb6b42

  • memory/2620-0-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/2620-1-0x00000000002D0000-0x00000000002D6000-memory.dmp

    Filesize

    24KB

  • memory/2620-3-0x0000000000300000-0x0000000000306000-memory.dmp

    Filesize

    24KB

  • memory/2620-2-0x00000000002D0000-0x00000000002D6000-memory.dmp

    Filesize

    24KB

  • memory/2620-15-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/2648-19-0x0000000000270000-0x0000000000276000-memory.dmp

    Filesize

    24KB

  • memory/2648-18-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2648-16-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/2648-26-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB