Analysis

  • max time kernel
    143s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-11-2022 04:11

General

  • Target

    19f1f596368535756b9565bed5d95e6cc11e28a9455579b7fb04623e7153a2e5.exe

  • Size

    78KB

  • MD5

    7f51658d2344b664929b8f0e3d786724

  • SHA1

    e55ca3aa0e85e04e096b5366ba3b99622aaf63d6

  • SHA256

    19f1f596368535756b9565bed5d95e6cc11e28a9455579b7fb04623e7153a2e5

  • SHA512

    095f759a8a93324948983b80cb7e4600713e05256a2bb6dbb7f3ce4d0cb2cd2bff7937fe72ced4e6fafc4bb94ab6c80c0c7f56e48306a6779d03412a51d40b53

  • SSDEEP

    1536:x4UHxpN/MUXsLTvCj0DBXJaOhcRWRcfFFxBKV4OvQ5mTGgoGsXxRFzOn5e:x4URpNUUX6z/DBXJfhcRWRc33KrvQ5m+

Score
8/10

Malware Config

Signatures

  • Adds policy Run key to start application 2 TTPs 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\19f1f596368535756b9565bed5d95e6cc11e28a9455579b7fb04623e7153a2e5.exe
    "C:\Users\Admin\AppData\Local\Temp\19f1f596368535756b9565bed5d95e6cc11e28a9455579b7fb04623e7153a2e5.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2816
    • C:\Users\Admin\AppData\Local\Temp\19f1f596368535756b9565bed5d95e6cc11e28a9455579b7fb04623e7153a2e5.exe
      "C:\Users\Admin\AppData\Local\Temp\19f1f596368535756b9565bed5d95e6cc11e28a9455579b7fb04623e7153a2e5.exe"
      2⤵
      • Maps connected drives based on registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:4244
      • C:\Windows\SysWOW64\svchost.exe
        C:\Windows\syswow64\svchost.exe
        3⤵
        • Adds policy Run key to start application
        • Drops file in Program Files directory
        PID:728

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\nse37F9.tmp\cellarer.dll

    Filesize

    34KB

    MD5

    10692017651aaf01881c7a31a9ef5515

    SHA1

    b7f78dc3a3a81e646ad92fa7a2ef5fe675d9d9e1

    SHA256

    0fd14e6c5962242d15fba61bd0e1e8d7ce754ea6dd8c56c51719c10830f3902f

    SHA512

    c4bf7a408b1436b435519b7601e3f063b5f8599c86e536bcca9be4fdb4ef1ba588cedd151121ad3e2a8ef9f8b39a61c8fa373405aa55dfd013c02b77ccc5ba4b

  • memory/728-135-0x0000000000000000-mapping.dmp

  • memory/728-136-0x0000000000480000-0x000000000048E000-memory.dmp

    Filesize

    56KB

  • memory/728-137-0x0000000000310000-0x0000000000315000-memory.dmp

    Filesize

    20KB

  • memory/728-138-0x0000000000310000-0x0000000000315000-memory.dmp

    Filesize

    20KB

  • memory/4244-133-0x0000000000000000-mapping.dmp

  • memory/4244-134-0x0000000000400000-0x0000000000405000-memory.dmp

    Filesize

    20KB