Analysis

  • max time kernel
    360s
  • max time network
    317s
  • platform
    windows10-1703_x64
  • resource
    win10-20220812-en
  • resource tags

    arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
  • submitted
    01-02-2023 12:36

General

  • Target

    Contract and Specification.exe

  • Size

    431KB

  • MD5

    4ef59af7ad7c6a2ee0124c93d16d698f

  • SHA1

    77a010a4a27132ddb34278c0e9ec895fc64960dc

  • SHA256

    f73da142743d3ea43fd7a82872b754a59f29cfca8090932b3c07179e395e9a9d

  • SHA512

    7b37ed7b8b78a26740666bff75f908127b147820fe199ec61e0828c34e8fa458f2af73a579b26a4edf46e4d9189ee4e0709064f6fd894b7638c1a0e22401a60c

  • SSDEEP

    6144:7NW/WRDxp/UZEM/Ir9Feqj+CZEX5JOHcTNXtI5OfkpieXtlV0SMTrlz5DL8GAooP:ZqtqLF+pXiHcZy1pbbV2l1dzIthTJ

Score
7/10

Malware Config

Signatures

  • Loads dropped DLL 1 IoCs
  • Drops file in System32 directory 1 IoCs
  • Drops file in Program Files directory 1 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\Contract and Specification.exe
    "C:\Users\Admin\AppData\Local\Temp\Contract and Specification.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Drops file in Windows directory
    PID:2340

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • \Users\Admin\AppData\Local\Temp\nstCD10.tmp\System.dll

    Filesize

    12KB

    MD5

    792b6f86e296d3904285b2bf67ccd7e0

    SHA1

    966b16f84697552747e0ddd19a4ba8ab5083af31

    SHA256

    c7a20bcaa0197aedddc8e4797bbb33fdf70d980f5e83c203d148121c2106d917

    SHA512

    97edc3410b88ca31abc0af0324258d2b59127047810947d0fb5e7e12957db34d206ffd70a0456add3a26b0546643ff0234124b08423c2c9ffe9bdec6eb210f2c

  • memory/2340-120-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2340-121-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2340-122-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2340-123-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2340-124-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2340-125-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2340-126-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2340-127-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2340-128-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2340-129-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2340-130-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2340-131-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2340-132-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2340-133-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2340-134-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2340-135-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2340-136-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2340-137-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2340-138-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2340-139-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2340-140-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2340-141-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2340-143-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2340-144-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2340-142-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2340-145-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2340-146-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2340-147-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2340-148-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2340-149-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2340-150-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2340-151-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2340-152-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2340-153-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2340-154-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2340-155-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2340-156-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2340-158-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2340-157-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2340-159-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2340-160-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2340-162-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2340-161-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2340-163-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2340-164-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2340-165-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2340-166-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2340-167-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2340-168-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2340-169-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2340-171-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2340-170-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2340-173-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB