Analysis

  • max time kernel
    148s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20/05/2024, 04:54

General

  • Target

    Access/Redirect to Access.exe

  • Size

    2.5MB

  • MD5

    16cd4cb40bf3e13146f06b01cc5dd251

  • SHA1

    1852f2b44fb024c0d1039c1497d45e10ac8586db

  • SHA256

    e45f3b1634526e3277275eb9962fc4b9d3e299bc5348b08d649a4b09b3991e35

  • SHA512

    1fb86bf170a858d0037c9207c9877fac82231efc39e48fbe66bb0879ef87a0ae692ba731aaa102a4be7211176e53b4d40ad91a68c7c3c02a29d1ffc433cf9fb6

  • SSDEEP

    49152:ye4U8f2fvPcuPvhN4UgpX6FWmHEksxF68RNcK7hojRvLbwcrbEGf3LkKSKGS:ye4U8f2DPvh26tHZ6F6a2+hwNw24GT3b

Malware Config

Signatures

  • xmrig

    XMRig is a high performance, open source, cross platform CPU/GPU miner.

  • XMRig Miner payload 9 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Creates new service(s) 2 TTPs
  • Stops running service(s) 4 TTPs
  • Executes dropped EXE 1 IoCs
  • UPX packed file 14 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops file in System32 directory 4 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Launches sc.exe 14 IoCs

    Sc.exe is a Windows utlilty to control services on the system.

  • Modifies data under HKEY_USERS 46 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Access\Redirect to Access.exe
    "C:\Users\Admin\AppData\Local\Temp\Access\Redirect to Access.exe"
    1⤵
    • Drops file in System32 directory
    • Suspicious behavior: EnumeratesProcesses
    PID:1656
    • C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe
      C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe Add-MpPreference -ExclusionPath @($env:UserProfile, $env:ProgramData) -ExclusionExtension '.exe' -Force
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3704
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c wusa /uninstall /kb:890830 /quiet /norestart
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3616
      • C:\Windows\system32\wusa.exe
        wusa /uninstall /kb:890830 /quiet /norestart
        3⤵
          PID:2568
      • C:\Windows\system32\sc.exe
        C:\Windows\system32\sc.exe stop UsoSvc
        2⤵
        • Launches sc.exe
        PID:116
      • C:\Windows\system32\sc.exe
        C:\Windows\system32\sc.exe stop WaaSMedicSvc
        2⤵
        • Launches sc.exe
        PID:4920
      • C:\Windows\system32\sc.exe
        C:\Windows\system32\sc.exe stop wuauserv
        2⤵
        • Launches sc.exe
        PID:4468
      • C:\Windows\system32\sc.exe
        C:\Windows\system32\sc.exe stop bits
        2⤵
        • Launches sc.exe
        PID:3204
      • C:\Windows\system32\sc.exe
        C:\Windows\system32\sc.exe stop dosvc
        2⤵
        • Launches sc.exe
        PID:4244
      • C:\Windows\system32\sc.exe
        C:\Windows\system32\sc.exe delete "ChromeAddons"
        2⤵
        • Launches sc.exe
        PID:1108
      • C:\Windows\system32\sc.exe
        C:\Windows\system32\sc.exe create "ChromeAddons" binpath= "C:\ProgramData\ChromeAddons64\AdBlockV1.01.exe" start= "auto"
        2⤵
        • Launches sc.exe
        PID:2928
      • C:\Windows\system32\sc.exe
        C:\Windows\system32\sc.exe stop eventlog
        2⤵
        • Launches sc.exe
        PID:3908
      • C:\Windows\system32\sc.exe
        C:\Windows\system32\sc.exe start "ChromeAddons"
        2⤵
        • Launches sc.exe
        PID:2964
    • C:\ProgramData\ChromeAddons64\AdBlockV1.01.exe
      C:\ProgramData\ChromeAddons64\AdBlockV1.01.exe
      1⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3556
      • C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe
        C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe Add-MpPreference -ExclusionPath @($env:UserProfile, $env:ProgramData) -ExclusionExtension '.exe' -Force
        2⤵
        • Command and Scripting Interpreter: PowerShell
        • Drops file in System32 directory
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:464
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c wusa /uninstall /kb:890830 /quiet /norestart
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:3164
        • C:\Windows\system32\wusa.exe
          wusa /uninstall /kb:890830 /quiet /norestart
          3⤵
            PID:892
        • C:\Windows\system32\sc.exe
          C:\Windows\system32\sc.exe stop UsoSvc
          2⤵
          • Launches sc.exe
          PID:2160
        • C:\Windows\system32\sc.exe
          C:\Windows\system32\sc.exe stop WaaSMedicSvc
          2⤵
          • Launches sc.exe
          PID:4872
        • C:\Windows\system32\sc.exe
          C:\Windows\system32\sc.exe stop wuauserv
          2⤵
          • Launches sc.exe
          PID:2720
        • C:\Windows\system32\sc.exe
          C:\Windows\system32\sc.exe stop bits
          2⤵
          • Launches sc.exe
          PID:1980
        • C:\Windows\system32\sc.exe
          C:\Windows\system32\sc.exe stop dosvc
          2⤵
          • Launches sc.exe
          PID:5012
        • C:\Windows\system32\conhost.exe
          C:\Windows\system32\conhost.exe
          2⤵
            PID:1788
          • C:\Windows\explorer.exe
            explorer.exe
            2⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:4960

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\ProgramData\ChromeAddons64\AdBlockV1.01.exe

          Filesize

          2.5MB

          MD5

          16cd4cb40bf3e13146f06b01cc5dd251

          SHA1

          1852f2b44fb024c0d1039c1497d45e10ac8586db

          SHA256

          e45f3b1634526e3277275eb9962fc4b9d3e299bc5348b08d649a4b09b3991e35

          SHA512

          1fb86bf170a858d0037c9207c9877fac82231efc39e48fbe66bb0879ef87a0ae692ba731aaa102a4be7211176e53b4d40ad91a68c7c3c02a29d1ffc433cf9fb6

        • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_n3sefwlk.zfv.ps1

          Filesize

          60B

          MD5

          d17fe0a3f47be24a6453e9ef58c94641

          SHA1

          6ab83620379fc69f80c0242105ddffd7d98d5d9d

          SHA256

          96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

          SHA512

          5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

        • memory/464-41-0x00000282ED2C0000-0x00000282ED2CA000-memory.dmp

          Filesize

          40KB

        • memory/464-45-0x00000282ED310000-0x00000282ED31A000-memory.dmp

          Filesize

          40KB

        • memory/464-44-0x00000282ED300000-0x00000282ED306000-memory.dmp

          Filesize

          24KB

        • memory/464-43-0x00000282ED2D0000-0x00000282ED2D8000-memory.dmp

          Filesize

          32KB

        • memory/464-42-0x00000282ED320000-0x00000282ED33A000-memory.dmp

          Filesize

          104KB

        • memory/464-37-0x00000282ED0A0000-0x00000282ED0BC000-memory.dmp

          Filesize

          112KB

        • memory/464-38-0x00000282ED0C0000-0x00000282ED175000-memory.dmp

          Filesize

          724KB

        • memory/464-39-0x00000282ED090000-0x00000282ED09A000-memory.dmp

          Filesize

          40KB

        • memory/464-40-0x00000282ED2E0000-0x00000282ED2FC000-memory.dmp

          Filesize

          112KB

        • memory/1788-51-0x0000000140000000-0x000000014000D000-memory.dmp

          Filesize

          52KB

        • memory/1788-52-0x0000000140000000-0x000000014000D000-memory.dmp

          Filesize

          52KB

        • memory/1788-55-0x0000000140000000-0x000000014000D000-memory.dmp

          Filesize

          52KB

        • memory/1788-50-0x0000000140000000-0x000000014000D000-memory.dmp

          Filesize

          52KB

        • memory/1788-49-0x0000000140000000-0x000000014000D000-memory.dmp

          Filesize

          52KB

        • memory/1788-48-0x0000000140000000-0x000000014000D000-memory.dmp

          Filesize

          52KB

        • memory/3704-15-0x00007FFEFA0E0000-0x00007FFEFABA1000-memory.dmp

          Filesize

          10.8MB

        • memory/3704-12-0x00007FFEFA0E0000-0x00007FFEFABA1000-memory.dmp

          Filesize

          10.8MB

        • memory/3704-11-0x00007FFEFA0E0000-0x00007FFEFABA1000-memory.dmp

          Filesize

          10.8MB

        • memory/3704-10-0x00000233F04E0000-0x00000233F0502000-memory.dmp

          Filesize

          136KB

        • memory/3704-0-0x00007FFEFA0E3000-0x00007FFEFA0E5000-memory.dmp

          Filesize

          8KB

        • memory/4960-61-0x0000000140000000-0x0000000140848000-memory.dmp

          Filesize

          8.3MB

        • memory/4960-56-0x0000000140000000-0x0000000140848000-memory.dmp

          Filesize

          8.3MB

        • memory/4960-58-0x0000000140000000-0x0000000140848000-memory.dmp

          Filesize

          8.3MB

        • memory/4960-60-0x0000000140000000-0x0000000140848000-memory.dmp

          Filesize

          8.3MB

        • memory/4960-57-0x0000000140000000-0x0000000140848000-memory.dmp

          Filesize

          8.3MB

        • memory/4960-63-0x0000000000A90000-0x0000000000AB0000-memory.dmp

          Filesize

          128KB

        • memory/4960-59-0x0000000140000000-0x0000000140848000-memory.dmp

          Filesize

          8.3MB

        • memory/4960-62-0x0000000140000000-0x0000000140848000-memory.dmp

          Filesize

          8.3MB

        • memory/4960-64-0x0000000140000000-0x0000000140848000-memory.dmp

          Filesize

          8.3MB

        • memory/4960-67-0x0000000140000000-0x0000000140848000-memory.dmp

          Filesize

          8.3MB

        • memory/4960-65-0x0000000140000000-0x0000000140848000-memory.dmp

          Filesize

          8.3MB

        • memory/4960-66-0x0000000140000000-0x0000000140848000-memory.dmp

          Filesize

          8.3MB

        • memory/4960-68-0x0000000140000000-0x0000000140848000-memory.dmp

          Filesize

          8.3MB

        • memory/4960-69-0x0000000140000000-0x0000000140848000-memory.dmp

          Filesize

          8.3MB

        • memory/4960-70-0x0000000140000000-0x0000000140848000-memory.dmp

          Filesize

          8.3MB