Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    28-05-2024 19:19

General

  • Target

    2024-05-28_601b0b35661150f15909076612da8df6_cryptolocker.exe

  • Size

    33KB

  • MD5

    601b0b35661150f15909076612da8df6

  • SHA1

    48c0468a20fa070de5c78135d5102bbf0425a271

  • SHA256

    32a8e62020b5ba73089747b1cf4ee73295a7dc39d08ccf08864d32aea4649d2a

  • SHA512

    265121427ecea626b62c91d586ac70d56b683671a72add71e6bff3807e2c6588f4697a334cfb34e1dd83fdf808fc8a2033eb7bb5b23c702b1969b37518dca1ea

  • SSDEEP

    768:bxNQIE0eBhkL2Fo1CCwgfjOg9Arbkzos5jmG:bxNrC7kYo1Fxf2rYPP

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 IoCs
  • 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).

  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-05-28_601b0b35661150f15909076612da8df6_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-28_601b0b35661150f15909076612da8df6_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1072
    • C:\Users\Admin\AppData\Local\Temp\pissa.exe
      "C:\Users\Admin\AppData\Local\Temp\pissa.exe"
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      PID:852

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    34KB

    MD5

    71878de7d22ee69fa8a7b9c5b84f6d13

    SHA1

    8b5dfa84b420921cbb30132a0efecf334750980c

    SHA256

    b02b36e1e2c726d4a5f23ae9e4c9b90d178436b05516b8f6fc5244cad1fe39ae

    SHA512

    94a7122911d719eddbe3d091752a474d028399b5ee450c798384d54c6ad7bee1ed3cbaa2f0470de33eec65ab065db030561369482a2e21ee589a8aec66489761

  • memory/852-15-0x0000000000370000-0x0000000000376000-memory.dmp

    Filesize

    24KB

  • memory/852-22-0x0000000000360000-0x0000000000366000-memory.dmp

    Filesize

    24KB

  • memory/1072-1-0x0000000001CF0000-0x0000000001CF6000-memory.dmp

    Filesize

    24KB

  • memory/1072-0-0x0000000001CE0000-0x0000000001CE6000-memory.dmp

    Filesize

    24KB

  • memory/1072-8-0x0000000001CE0000-0x0000000001CE6000-memory.dmp

    Filesize

    24KB