Analysis

  • max time kernel
    297s
  • max time network
    376s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 10:16

General

  • Target

    a76a4f201a74f9738e35d6a49d397019cde8372d959f7da25b43c87b2359e739.exe

  • Size

    602KB

  • MD5

    aafbb5acdd14e8c81d8cf754726d6c1e

  • SHA1

    583cfbae957f50504fc47361f1a36c0e048164a1

  • SHA256

    a76a4f201a74f9738e35d6a49d397019cde8372d959f7da25b43c87b2359e739

  • SHA512

    c3cf6f952317683233a103bb5d61a4f70ef2f740b7a4d76b83920bae7f39a9496ab7b36c1d4735466eb611e10b097c798f4d841d5b597465a32c0b85be804927

  • SSDEEP

    12288:MIny5DYTjKcHx6a8jwZveZxLEu24c6VccI1OE1u:KUTjKQVZ2Yu24cGcWEU

Score
7/10

Malware Config

Signatures

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

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

  • Runs net.exe
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a76a4f201a74f9738e35d6a49d397019cde8372d959f7da25b43c87b2359e739.exe
    "C:\Users\Admin\AppData\Local\Temp\a76a4f201a74f9738e35d6a49d397019cde8372d959f7da25b43c87b2359e739.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:3564
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4260
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1260

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\nszD7D5.tmp\System.dll

      Filesize

      11KB

      MD5

      c17103ae9072a06da581dec998343fc1

      SHA1

      b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

      SHA256

      dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

      SHA512

      d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

    • C:\Users\Admin\AppData\Local\Temp\nszD7D5.tmp\nsExec.dll

      Filesize

      6KB

      MD5

      acc2b699edfea5bf5aae45aba3a41e96

      SHA1

      d2accf4d494e43ceb2cff69abe4dd17147d29cc2

      SHA256

      168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

      SHA512

      e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

    • C:\Users\Admin\AppData\Local\Temp\nszD7D5.tmp\nsExec.dll

      Filesize

      6KB

      MD5

      acc2b699edfea5bf5aae45aba3a41e96

      SHA1

      d2accf4d494e43ceb2cff69abe4dd17147d29cc2

      SHA256

      168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

      SHA512

      e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

    • memory/1260-137-0x0000000000000000-mapping.dmp

    • memory/3564-132-0x0000000000360000-0x00000000007BE000-memory.dmp

      Filesize

      4.4MB

    • memory/4260-136-0x0000000000000000-mapping.dmp