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Overview

overview

8

Static

static

9dc185fb9d...c6.exe

windows7-x64

9dc185fb9d...c6.exe

windows10-2004-x64

8

Analysis

  • max time kernel
    154s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/10/2022, 21:49

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General

  • Target

    9dc185fb9d2657bab53605d9ced355812856d130c01308230febf1c4b41612c6.exe

  • Size

    152KB

  • MD5

    39dc0f12f0314fd8ca114ea7a999ba00

  • SHA1

    4acc211d16b40631a37d088225a7d522e61da189

  • SHA256

    9dc185fb9d2657bab53605d9ced355812856d130c01308230febf1c4b41612c6

  • SHA512

    a8527e94477a8c15792de09c7295ca9f9599ba7dcc706ea1ccaebae5489c8605e4031197d4ff0c8ef06a1581bf60c4e203b80f8ee889424bbcb09086c1b1b804

  • SSDEEP

    1536:cmme3awIFmATtceLiJ/0nJBL8vEi8jMSRPLShVuy5IyjFyecdSj:+eNIMStceLuGb83RHuynjFydUj

Score
8/10
bootkitpersistence

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Modifies Installed Components in the registry 2 TTPs 1 IoCs
    persistence
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Enumerates connected drives 3 TTPs 1 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

    bootkitpersistence
  • Drops file in System32 directory 2 IoCs
  • Program crash 1 IoCs
  • Checks SCSI registry key(s) 3 TTPs 58 IoCs

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

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies registry class 63 IoCs
  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 61 IoCs
  • Suspicious use of SendNotifyMessage 26 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9dc185fb9d2657bab53605d9ced355812856d130c01308230febf1c4b41612c6.exe
    "C:\Users\Admin\AppData\Local\Temp\9dc185fb9d2657bab53605d9ced355812856d130c01308230febf1c4b41612c6.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: RenamesItself
    • Suspicious use of WriteProcessMemory
    PID:4608
    • C:\Users\Public\Videos\TVCful.tmp
      "C:\Users\Public\Videos\TVCful.tmp"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Writes to the Master Boot Record (MBR)
      • Drops file in System32 directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:5064
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 5064 -s 760
        3⤵
        • Program crash
        PID:3192
  • C:\Windows\explorer.exe
    explorer.exe
    1⤵
    • Modifies Installed Components in the registry
    • Enumerates connected drives
    • Checks SCSI registry key(s)
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of SetWindowsHookEx
    PID:5016
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 5064 -ip 5064
    1⤵
      PID:2076
    • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
      "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
      1⤵
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:2900
    • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
      "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
      1⤵
      • Enumerates system info in registry
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:4456

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Users\Public\Videos\TVCful.tmp
      Filesize

      100KB

      MD5

      0289e0791ab7b1d28bf07014be1a98e5

      SHA1

      57cfec4862dd3ab962cc86579223872453edf5f0

      SHA256

      8dcc47c93617b5e3a180e72dbc34e8c05d61c473b6c888cfae65020cb220dba4

      SHA512

      b385833cb3965fbb7d92b2beb9da2c1687b8fabc4dd026fdd2766bf3f507af3d434f5b5401df3ecd4cd0fafbb72507f694c4098e90f56a4fe2de01556fba3139

      Download Submit

    • C:\Users\Public\Videos\TVCful.tmp
      Filesize

      100KB

      MD5

      0289e0791ab7b1d28bf07014be1a98e5

      SHA1

      57cfec4862dd3ab962cc86579223872453edf5f0

      SHA256

      8dcc47c93617b5e3a180e72dbc34e8c05d61c473b6c888cfae65020cb220dba4

      SHA512

      b385833cb3965fbb7d92b2beb9da2c1687b8fabc4dd026fdd2766bf3f507af3d434f5b5401df3ecd4cd0fafbb72507f694c4098e90f56a4fe2de01556fba3139

      Download Submit

    • memory/4456-284-0x0000020C27590000-0x0000020C27594000-memory.dmp

      Filesize

      16KB

      Download

    • memory/4456-283-0x0000020C27590000-0x0000020C27594000-memory.dmp

      Filesize

      16KB

      Download

    • memory/4456-291-0x0000020C27594000-0x0000020C27597000-memory.dmp

      Filesize

      12KB

      Download

    • memory/4456-146-0x0000020C23690000-0x0000020C23698000-memory.dmp

      Filesize

      32KB

      Download

    • memory/4456-149-0x0000020C27530000-0x0000020C27550000-memory.dmp

      Filesize

      128KB

      Download

    • memory/4456-152-0x0000020C37590000-0x0000020C37690000-memory.dmp

      Filesize

      1024KB

      Download

    • memory/4456-155-0x0000020C27490000-0x0000020C274B0000-memory.dmp

      Filesize

      128KB

      Download

    • memory/4456-164-0x0000020C37820000-0x0000020C37840000-memory.dmp

      Filesize

      128KB

      Download

    • memory/4456-282-0x0000020C27590000-0x0000020C27594000-memory.dmp

      Filesize

      16KB

      Download

    • memory/4456-292-0x0000020C27594000-0x0000020C27597000-memory.dmp

      Filesize

      12KB

      Download

    • memory/4456-290-0x0000020C27594000-0x0000020C27597000-memory.dmp

      Filesize

      12KB

      Download

    • memory/4456-285-0x0000020C27590000-0x0000020C27594000-memory.dmp

      Filesize

      16KB

      Download

    • memory/4456-286-0x0000020C27590000-0x0000020C27594000-memory.dmp

      Filesize

      16KB

      Download

    • memory/4456-289-0x0000020C27594000-0x0000020C27597000-memory.dmp

      Filesize

      12KB

      Download

    • memory/4608-132-0x0000000000400000-0x0000000000427000-memory.dmp

      Filesize

      156KB

      Download

    • memory/4608-136-0x0000000000400000-0x0000000000427000-memory.dmp

      Filesize

      156KB

      Download