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Analysis

  • max time kernel
    151s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    05/12/2022, 09:39

General

  • Target

    a03513cb74284fe8b251b865f0a82e9a77327be5f8888390a4d86715c062da64.exe

  • Size

    172KB

  • MD5

    b234d4eb57775790ae988b5bf63a46aa

  • SHA1

    8b59c4413479de8224ce9a51b1454e4693a79dfc

  • SHA256

    a03513cb74284fe8b251b865f0a82e9a77327be5f8888390a4d86715c062da64

  • SHA512

    2ba9f8d16b737321f322e7ca3e482a1783d9d70a231493b7db342e96ef20a7e11433088b3831d3ee9651d1c20b11324e60927de502ae09c56bc7fd251caba7d9

  • SSDEEP

    768:Mg8CRIvbHa5ED3Y9gMtVAcfvreLHAIkuqmuRZuFcPhr6Ek:MCiY9X6LH9kuqmuvUcPhQ

Score
10/10

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 51 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a03513cb74284fe8b251b865f0a82e9a77327be5f8888390a4d86715c062da64.exe
    "C:\Users\Admin\AppData\Local\Temp\a03513cb74284fe8b251b865f0a82e9a77327be5f8888390a4d86715c062da64.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1416
    • C:\Users\Admin\cueuf.exe
      "C:\Users\Admin\cueuf.exe"
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1520

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\cueuf.exe

    Filesize

    172KB

    MD5

    249350b24cc689af344dd7e6a65f531f

    SHA1

    518cbda2a3ff6a7f72760369b44352cf9126bd84

    SHA256

    51de82596c95aaf73d0d6ef8dab35095bd98938b7b82066f716528cc8a1f84e4

    SHA512

    cf93646aeda62d2e53de38b14a3b2ce1c7c5d4ae821f5dfb91785470c7158bed5cfe2654123e64cbb6446087786c6715b20eeea20dde2ebcb54a99541cbe1326

  • C:\Users\Admin\cueuf.exe

    Filesize

    172KB

    MD5

    249350b24cc689af344dd7e6a65f531f

    SHA1

    518cbda2a3ff6a7f72760369b44352cf9126bd84

    SHA256

    51de82596c95aaf73d0d6ef8dab35095bd98938b7b82066f716528cc8a1f84e4

    SHA512

    cf93646aeda62d2e53de38b14a3b2ce1c7c5d4ae821f5dfb91785470c7158bed5cfe2654123e64cbb6446087786c6715b20eeea20dde2ebcb54a99541cbe1326

  • \Users\Admin\cueuf.exe

    Filesize

    172KB

    MD5

    249350b24cc689af344dd7e6a65f531f

    SHA1

    518cbda2a3ff6a7f72760369b44352cf9126bd84

    SHA256

    51de82596c95aaf73d0d6ef8dab35095bd98938b7b82066f716528cc8a1f84e4

    SHA512

    cf93646aeda62d2e53de38b14a3b2ce1c7c5d4ae821f5dfb91785470c7158bed5cfe2654123e64cbb6446087786c6715b20eeea20dde2ebcb54a99541cbe1326

  • \Users\Admin\cueuf.exe

    Filesize

    172KB

    MD5

    249350b24cc689af344dd7e6a65f531f

    SHA1

    518cbda2a3ff6a7f72760369b44352cf9126bd84

    SHA256

    51de82596c95aaf73d0d6ef8dab35095bd98938b7b82066f716528cc8a1f84e4

    SHA512

    cf93646aeda62d2e53de38b14a3b2ce1c7c5d4ae821f5dfb91785470c7158bed5cfe2654123e64cbb6446087786c6715b20eeea20dde2ebcb54a99541cbe1326

  • memory/1416-56-0x0000000075E81000-0x0000000075E83000-memory.dmp

    Filesize

    8KB