Analysis

  • max time kernel
    133s
  • max time network
    143s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    31-10-2024 08:23

General

  • Target

    2024-10-31_2a767ced2540d530ae03e36dbe873ffa_cryptolocker.exe

  • Size

    39KB

  • MD5

    2a767ced2540d530ae03e36dbe873ffa

  • SHA1

    6d6a6be9ced25510c172cc4de923d65d0d2d0a18

  • SHA256

    dc23d08504a34a60410079c50a4d88dd3a03d3f2027b06a9edc15c613fd4ee8a

  • SHA512

    229612f5345943c43100e37525ad86bddbccafe47b20f857ed022572a8cf284b68e4d58373230b18fb8347d06bde41e600b7c2808db2f879edf4ca7fe3476cc4

  • SSDEEP

    768:b7o/2n1TCraU6GD1a4Xcn62TUdcuQlqJ51mwl:bc/y2lm6Y0AqJ51mwl

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).

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of UnmapMainImage 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-10-31_2a767ced2540d530ae03e36dbe873ffa_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-10-31_2a767ced2540d530ae03e36dbe873ffa_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:2964
    • C:\Users\Admin\AppData\Local\Temp\rewok.exe
      "C:\Users\Admin\AppData\Local\Temp\rewok.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of UnmapMainImage
      PID:2016

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    39KB

    MD5

    2e939ca01505cf56ef87aa878d3966c4

    SHA1

    b3384e5feab3ea943f73fc314b45c48399777f41

    SHA256

    17fafc1a72b1a3d4e03df61d6deecec91a04f01d6ba596a51f3c261dd52ed043

    SHA512

    1aec128757a7fdd9341029230d31f86b29c5df077ca0cd2e146f10c14e99f4961f449d1cc5163e1eda643180305d193c94433c1ffeb0f8c5d83357646f989950

  • memory/2016-16-0x00000000003F0000-0x00000000003F6000-memory.dmp

    Filesize

    24KB

  • memory/2964-0-0x0000000000380000-0x0000000000386000-memory.dmp

    Filesize

    24KB

  • memory/2964-1-0x0000000000400000-0x0000000000406000-memory.dmp

    Filesize

    24KB

  • memory/2964-8-0x0000000000380000-0x0000000000386000-memory.dmp

    Filesize

    24KB