Analysis

  • max time kernel
    140s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08/08/2023, 17:13

General

  • Target

    9c51526560314fcc125cb0cef9ef2559_cryptolocker_JC.exe

  • Size

    73KB

  • MD5

    9c51526560314fcc125cb0cef9ef2559

  • SHA1

    be53d47354d7055c470f8f5d9a3f4e0bcfc60afb

  • SHA256

    eae837c3074fead5cf87cf6a4eb79800f314800987845699b12038da53730381

  • SHA512

    97eb65d844024864b4992777fa316df422551b3426b359ca2f0351d347f982b731ac2b88a0440abf7c93d374aec1a2cb9e3806ee0de774ded27471ed8d475fca

  • SSDEEP

    1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJNpsAnJYqdIR+7:ZVxkGOtEvwDpjcNp

Score
7/10

Malware Config

Signatures

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

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

  • Modifies system certificate store 2 TTPs 8 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9c51526560314fcc125cb0cef9ef2559_cryptolocker_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\9c51526560314fcc125cb0cef9ef2559_cryptolocker_JC.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1236
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      PID:4572

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          73KB

          MD5

          0baa6490406bd4b0d769ed9cb3e7dc0b

          SHA1

          965e935726d31cdedde9bec4bfab89bd559da228

          SHA256

          03ec2dcdefee3bd0384781ab416ccdab4355774ac29424b1c594eeed5e776ad6

          SHA512

          0ab501780313d753317269480d7a0784df4ef5412bc1e373837e358f87bb519c8f77ef40b2075908f058b4a6306507ee21008f6af2f1c687851a53a3dfc95a1f

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

          Filesize

          73KB

          MD5

          0baa6490406bd4b0d769ed9cb3e7dc0b

          SHA1

          965e935726d31cdedde9bec4bfab89bd559da228

          SHA256

          03ec2dcdefee3bd0384781ab416ccdab4355774ac29424b1c594eeed5e776ad6

          SHA512

          0ab501780313d753317269480d7a0784df4ef5412bc1e373837e358f87bb519c8f77ef40b2075908f058b4a6306507ee21008f6af2f1c687851a53a3dfc95a1f

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

          Filesize

          73KB

          MD5

          0baa6490406bd4b0d769ed9cb3e7dc0b

          SHA1

          965e935726d31cdedde9bec4bfab89bd559da228

          SHA256

          03ec2dcdefee3bd0384781ab416ccdab4355774ac29424b1c594eeed5e776ad6

          SHA512

          0ab501780313d753317269480d7a0784df4ef5412bc1e373837e358f87bb519c8f77ef40b2075908f058b4a6306507ee21008f6af2f1c687851a53a3dfc95a1f

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

          Filesize

          315B

          MD5

          a34ac19f4afae63adc5d2f7bc970c07f

          SHA1

          a82190fc530c265aa40a045c21770d967f4767b8

          SHA256

          d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

          SHA512

          42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

        • memory/1236-133-0x00000000004F0000-0x00000000004F3000-memory.dmp

          Filesize

          12KB

        • memory/1236-134-0x00000000021D0000-0x00000000021D6000-memory.dmp

          Filesize

          24KB

        • memory/1236-135-0x00000000021D0000-0x00000000021D6000-memory.dmp

          Filesize

          24KB

        • memory/1236-136-0x0000000002060000-0x0000000002066000-memory.dmp

          Filesize

          24KB

        • memory/1236-150-0x00000000004F0000-0x00000000004F3000-memory.dmp

          Filesize

          12KB

        • memory/4572-154-0x0000000000660000-0x0000000000666000-memory.dmp

          Filesize

          24KB

        • memory/4572-152-0x00000000006E0000-0x00000000006E6000-memory.dmp

          Filesize

          24KB