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Analysis

  • max time kernel
    163s
  • max time network
    175s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/12/2022, 07:46

General

  • Target

    d7c3c6eeac20962183eafd8795cfdf4c2a1fb02143b4ca4b8570e03736ebb21f.exe

  • Size

    146KB

  • MD5

    a752ace9308f6f7b20c72cfd96f21358

  • SHA1

    847a15885f15d981ab9a8c29aa3f8e73418b2282

  • SHA256

    d7c3c6eeac20962183eafd8795cfdf4c2a1fb02143b4ca4b8570e03736ebb21f

  • SHA512

    b8806cb36780b39d7806eb40bb8914f8070bbf49f9cb302c34fd6bd6a15aebadd84da7065dbfb17536d6c760962e195db3f40d781606940129d0dc55129d75c9

  • SSDEEP

    3072:XmZtLUK5BRyxxfJSihe7Mer29AkHCzkP0lB:XmZtn5OXfLG8A

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d7c3c6eeac20962183eafd8795cfdf4c2a1fb02143b4ca4b8570e03736ebb21f.exe
    "C:\Users\Admin\AppData\Local\Temp\d7c3c6eeac20962183eafd8795cfdf4c2a1fb02143b4ca4b8570e03736ebb21f.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4548
    • C:\Users\Admin\AppData\Local\Temp\ExpressVids.exe
      C:\Users\Admin\AppData\Local\Temp\ExpressVids.exe
      2⤵
      • Executes dropped EXE
      PID:3856
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3856 -s 412
        3⤵
        • Program crash
        PID:644
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3856 -ip 3856
    1⤵
      PID:1520

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\ExpressVids.exe

      Filesize

      85KB

      MD5

      c13ff33c89e93539e868d7dcb2e2c1f6

      SHA1

      fe66ded2856ab4ffe233fddd8c835eb6ef3755f7

      SHA256

      c12303594943d73f1c0e02ab6ef34e65a158ffc26b0db23d7664cd541180ef1c

      SHA512

      15fcff9d68ad47dd2236f0a75fcc4fed1270fe76bc81eaf64298e415c154f7c4eb470361f24edc268ece3d5eeb8dc67c278485265aab50e87d2e253f0871ce63

    • C:\Users\Admin\AppData\Local\Temp\ExpressVids.exe

      Filesize

      85KB

      MD5

      c13ff33c89e93539e868d7dcb2e2c1f6

      SHA1

      fe66ded2856ab4ffe233fddd8c835eb6ef3755f7

      SHA256

      c12303594943d73f1c0e02ab6ef34e65a158ffc26b0db23d7664cd541180ef1c

      SHA512

      15fcff9d68ad47dd2236f0a75fcc4fed1270fe76bc81eaf64298e415c154f7c4eb470361f24edc268ece3d5eeb8dc67c278485265aab50e87d2e253f0871ce63

    • memory/3856-135-0x0000000000490000-0x00000000004A9000-memory.dmp

      Filesize

      100KB

    • memory/3856-136-0x0000000000490000-0x00000000004A9000-memory.dmp

      Filesize

      100KB