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Analysis

  • max time kernel
    164s
  • max time network
    168s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/12/2022, 06:29

General

  • Target

    75bd9bf29f83de77ac83175a97b4c8be94c75832857e22f5a92756cc9765c727.exe

  • Size

    23KB

  • MD5

    6f88963d464830430469c7b5d6de141b

  • SHA1

    c747aa7962ee3d2631e853ad78cf72892e9560dc

  • SHA256

    75bd9bf29f83de77ac83175a97b4c8be94c75832857e22f5a92756cc9765c727

  • SHA512

    6e992354b51f427be864fd7b9704ac7fb916f56daf48e6fa62b11c77a1d5a6755a238ceea76d85b1b4aa3995d129af2ea532765ce50ab6553ae497e44d97f0bc

  • SSDEEP

    384:cTo4PxCu/JGQIixuWmHAcChy7VxplTjGFrTZZqcqg15LCfuqUw6pkh4cltkOirOe:c3v/JxtKChyv4PZZqcqg166pkWbYRW

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.

  • Modifies data under HKEY_USERS 15 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\75bd9bf29f83de77ac83175a97b4c8be94c75832857e22f5a92756cc9765c727.exe
    "C:\Users\Admin\AppData\Local\Temp\75bd9bf29f83de77ac83175a97b4c8be94c75832857e22f5a92756cc9765c727.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:876
    • C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe
      "C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe" _?=C:\Users\Admin\AppData\Local\Temp\
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:1984
  • C:\Windows\system32\LogonUI.exe
    "LogonUI.exe" /flags:0x4 /state0:0xa39d9055 /state1:0x41c64e6d
    1⤵
    • Modifies data under HKEY_USERS
    • Suspicious use of SetWindowsHookEx
    PID:4444

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe

    Filesize

    23KB

    MD5

    6f88963d464830430469c7b5d6de141b

    SHA1

    c747aa7962ee3d2631e853ad78cf72892e9560dc

    SHA256

    75bd9bf29f83de77ac83175a97b4c8be94c75832857e22f5a92756cc9765c727

    SHA512

    6e992354b51f427be864fd7b9704ac7fb916f56daf48e6fa62b11c77a1d5a6755a238ceea76d85b1b4aa3995d129af2ea532765ce50ab6553ae497e44d97f0bc

  • C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe

    Filesize

    23KB

    MD5

    6f88963d464830430469c7b5d6de141b

    SHA1

    c747aa7962ee3d2631e853ad78cf72892e9560dc

    SHA256

    75bd9bf29f83de77ac83175a97b4c8be94c75832857e22f5a92756cc9765c727

    SHA512

    6e992354b51f427be864fd7b9704ac7fb916f56daf48e6fa62b11c77a1d5a6755a238ceea76d85b1b4aa3995d129af2ea532765ce50ab6553ae497e44d97f0bc