Analysis

  • max time kernel
    41s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    20/10/2022, 08:48

General

  • Target

    57857afb9f6e93b2aa6906f04ef44561d47c0d523512d7a92dfdfcac601c059e.exe

  • Size

    262KB

  • MD5

    808e73257a72ac25cc88f950a8551540

  • SHA1

    7f1d9fb6a444d3faddd8a45480be8e8e9c3a8c67

  • SHA256

    57857afb9f6e93b2aa6906f04ef44561d47c0d523512d7a92dfdfcac601c059e

  • SHA512

    bb37216d75c87ab3ff7283af270a7d5558e0976a15680438a082d91805cd8ee7342002b8f98b440144821b677990ff461bf6bb8f69cd8ae385a9238c5795e86b

  • SSDEEP

    6144:b1dlZro5yD9YWSHyx5TKdcGhvJOzDTlO6JfLL:b1dlZo5yRsKocKJOzX3

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\57857afb9f6e93b2aa6906f04ef44561d47c0d523512d7a92dfdfcac601c059e.exe
    "C:\Users\Admin\AppData\Local\Temp\57857afb9f6e93b2aa6906f04ef44561d47c0d523512d7a92dfdfcac601c059e.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1752
    • C:\Extracted\NjRat 0.5.0.exe
      "C:\Extracted\NjRat 0.5.0.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:1716
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
        dw20.exe -x -s 448
        3⤵
        • Loads dropped DLL
        PID:1660

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Extracted\NjRat 0.5.0.exe

    Filesize

    216KB

    MD5

    630ccd444d5919d31cc7d7b921afabfa

    SHA1

    65d6526efb83c45eb6199d1e1bc8b03fa3afe4be

    SHA256

    6739b9e9848b155593fd71e6dfa0858aaf80b8be9e856f856c3bcca44e98bfec

    SHA512

    fe585222ed861680601be3276524e936a2a5a3010400a4d0073f85a0cb2350b3269a8a9455c11b63b8cba31abcea205ffc81aff1f8c058e6a2378b6e725e6d28

  • C:\Extracted\NjRat 0.5.0.exe

    Filesize

    216KB

    MD5

    630ccd444d5919d31cc7d7b921afabfa

    SHA1

    65d6526efb83c45eb6199d1e1bc8b03fa3afe4be

    SHA256

    6739b9e9848b155593fd71e6dfa0858aaf80b8be9e856f856c3bcca44e98bfec

    SHA512

    fe585222ed861680601be3276524e936a2a5a3010400a4d0073f85a0cb2350b3269a8a9455c11b63b8cba31abcea205ffc81aff1f8c058e6a2378b6e725e6d28

  • \Extracted\NjRat 0.5.0.exe

    Filesize

    216KB

    MD5

    630ccd444d5919d31cc7d7b921afabfa

    SHA1

    65d6526efb83c45eb6199d1e1bc8b03fa3afe4be

    SHA256

    6739b9e9848b155593fd71e6dfa0858aaf80b8be9e856f856c3bcca44e98bfec

    SHA512

    fe585222ed861680601be3276524e936a2a5a3010400a4d0073f85a0cb2350b3269a8a9455c11b63b8cba31abcea205ffc81aff1f8c058e6a2378b6e725e6d28

  • \Extracted\NjRat 0.5.0.exe

    Filesize

    216KB

    MD5

    630ccd444d5919d31cc7d7b921afabfa

    SHA1

    65d6526efb83c45eb6199d1e1bc8b03fa3afe4be

    SHA256

    6739b9e9848b155593fd71e6dfa0858aaf80b8be9e856f856c3bcca44e98bfec

    SHA512

    fe585222ed861680601be3276524e936a2a5a3010400a4d0073f85a0cb2350b3269a8a9455c11b63b8cba31abcea205ffc81aff1f8c058e6a2378b6e725e6d28

  • \Extracted\NjRat 0.5.0.exe

    Filesize

    216KB

    MD5

    630ccd444d5919d31cc7d7b921afabfa

    SHA1

    65d6526efb83c45eb6199d1e1bc8b03fa3afe4be

    SHA256

    6739b9e9848b155593fd71e6dfa0858aaf80b8be9e856f856c3bcca44e98bfec

    SHA512

    fe585222ed861680601be3276524e936a2a5a3010400a4d0073f85a0cb2350b3269a8a9455c11b63b8cba31abcea205ffc81aff1f8c058e6a2378b6e725e6d28

  • memory/1716-61-0x00000000747A0000-0x0000000074D4B000-memory.dmp

    Filesize

    5.7MB

  • memory/1716-65-0x00000000747A0000-0x0000000074D4B000-memory.dmp

    Filesize

    5.7MB

  • memory/1752-54-0x0000000076261000-0x0000000076263000-memory.dmp

    Filesize

    8KB