Analysis

  • max time kernel
    124s
  • max time network
    131s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18/03/2024, 15:13

General

  • Target
    9a7988742d751d224b990e8fab540e8845e0d56173fc02ed70da8f00b15c71f9.exe
  • Size 79.5MB
  • Sample240318-sl4mdabf96
  • SHA256 9a7988742d751d224b990e8fab540e8845e0d56173fc02ed70da8f00b15c71f9
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Meduza

    Meduza is a crypto wallet and info stealer written in C++.

  • Meduza Stealer payload 3 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Downloads MZ/PE file
  • Writes to the Master Boot Record (MBR) 1 TTPs 4 IoCs

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

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 2 IoCs
  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 17 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 5 IoCs

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

  • Modifies data under HKEY_USERS 23 IoCs
  • Modifies registry class 26 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\9a7988742d751d224b990e8fab540e8845e0d56173fc02ed70da8f00b15c71f9.exe
    "C:\Users\Admin\AppData\Local\Temp\9a7988742d751d224b990e8fab540e8845e0d56173fc02ed70da8f00b15c71f9.exe"
    1⤵
    • Writes to the Master Boot Record (MBR)
    • Checks computer location settings
    • Drops file in Program Files directory
    • Loads dropped DLL
    • Checks processor information in registry
    • Modifies data under HKEY_USERS
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4060
    • C:\Program Files\CCleaner\CCleaner64.exe
      "C:\Program Files\CCleaner\CCleaner64.exe" /createSkipUAC
      2⤵
      • Writes to the Master Boot Record (MBR)
      • Drops file in Program Files directory
      • Drops file in Windows directory
      • Executes dropped EXE
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1596
    • C:\Program Files\CCleaner\CCUpdate.exe
      "C:\Program Files\CCleaner\CCUpdate.exe" /reg
      2⤵
      • Writes to the Master Boot Record (MBR)
      • Drops file in Program Files directory
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:4400
      • C:\Program Files\CCleaner\CCUpdate.exe
        CCUpdate.exe /emupdater /applydll "C:\Program Files\CCleaner\Setup\c7cf5d26-3166-487d-ab29-120b0dbd1a6b.dll"
        3⤵
        • Writes to the Master Boot Record (MBR)
        • Executes dropped EXE
        • Loads dropped DLL
        PID:3792
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:4416
    • C:\Program Files\CCleaner\wa_3rd_party_host_64.exe
      "C:\Program Files\CCleaner\wa_3rd_party_host_64.exe"
      1⤵
      • Executes dropped EXE
      PID:836
    • C:\Program Files\CCleaner\wa_3rd_party_host_64.exe
      "C:\Program Files\CCleaner\wa_3rd_party_host_64.exe"
      1⤵
      • Executes dropped EXE
      PID:924

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          CCUpdate.exe

          • Path C:\Program Files\CCleaner\CCUpdate.exe
          • Size 697KB
          • SHA256 4ad9635351c8e8579c4d4c2bdd679ea7b135ec329adc6fd5d8211255e2e666be
          • MD5 SHA1 SHA512 SSDEEP

          CCleaner.exe

          • Path C:\Program Files\CCleaner\CCleaner.exe
          • Size 18.1MB
          • SHA256 351532b7a482cfa85e964ff2f6fe424a158d74a294a762fd4bbc09d18192ee99
          • MD5 SHA1 SHA512 SSDEEP

          CCleaner64.exe

          • Path C:\Program Files\CCleaner\CCleaner64.exe
          • Size 30.4MB
          • SHA256 0034d086b5189e2bf8836d185b50fb3df5b636c31f58b9c8e537251687b95e90
          • MD5 SHA1 SHA512 SSDEEP

          CCleaner64.exe

          • Path C:\Program Files\CCleaner\CCleaner64.exe
          • Size 19.3MB
          • SHA256 84a1659364fbf731ce934d31df4b3537e1783a0cddff9dbe72c34adb7daaa6e0
          • MD5 SHA1 SHA512 SSDEEP

          CCleaner64.exe

          • Path C:\Program Files\CCleaner\CCleaner64.exe
          • Size 15.2MB
          • SHA256 85d65e7c1b6b7b2fa186d28678e99169a5573e0a90bf2f76b9c4ed44f29a6ad3
          • MD5 SHA1 SHA512 SSDEEP

          2f6075d9-638f-4270-9ae9-e218c7df8ad3.ini

          • Path C:\Program Files\CCleaner\Setup\2f6075d9-638f-4270-9ae9-e218c7df8ad3.ini
          • Size 170B
          • SHA256 473d48a44a348f6c547aefd2c60dd4b9de0092e1fb94a7611bdd374783ef3b2c
          • MD5 SHA1 SHA512

          46e9993e-10d1-47e0-8989-ca12f99c4c08.xml

          • Path C:\Program Files\CCleaner\Setup\46e9993e-10d1-47e0-8989-ca12f99c4c08.xml
          • Size 818B
          • SHA256 abdfc16e71bd74863dbb57bf138a92cb05f8e2fe4f297838b2d38b014a06c882
          • MD5 SHA1 SHA512

          c7cf5d26-3166-487d-ab29-120b0dbd1a6b.dll

          • Path C:\Program Files\CCleaner\Setup\c7cf5d26-3166-487d-ab29-120b0dbd1a6b.dll
          • Size 469KB
          • SHA256 c427bcf6b065edf06662e0540e3e9a21c07095184e7bb9d05926dc3b79fc3348
          • MD5 SHA1 SHA512 SSDEEP

          wa_3rd_party_host_64.exe

          • Path C:\Program Files\CCleaner\wa_3rd_party_host_64.exe
          • Size 2.7MB
          • SHA256 5dd6788e60b475b092436ec33df48590d367216fbf709ba56d51519c2ef00e30
          • MD5 SHA1 SHA512 SSDEEP

          V01.log

          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\WebCache\V01.log
          • Size 512KB
          • SHA256 71cc2b3a272f82381778ef3b2ae188d42da5a450b6cbef4530b46252c1c3aa7c
          • MD5 SHA1 SHA512 SSDEEP

          WebCacheV01.dat

          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\WebCache\WebCacheV01.dat
          • Size 14.0MB
          • SHA256 3a4c7b839d44897ce96ffb00d495d82da5a7aa98e8416264ce4ef497a216b5a4
          • MD5 SHA1 SHA512 SSDEEP

          WebCacheV01.jfm

          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\WebCache\WebCacheV01.jfm
          • Size 16KB
          • SHA256 e40cb3252e28fa7963138285b2344692fb613aefb934966056eee1971cff4862
          • MD5 SHA1 SHA512 SSDEEP

          aswd8625ee1131ff60a.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\aswd8625ee1131ff60a.tmp
          • Size 35B
          • SHA256 8337212354871836e6763a41e615916c89bac5b3f1f0adf60ba43c7c806e1015
          • MD5 SHA1 SHA512

          ButtonEvent.dll

          • Path C:\Users\Admin\AppData\Local\Temp\nsc4066.tmp\ButtonEvent.dll
          • Size 5KB
          • SHA256 e2da6d8b73b5954d58baa89a949aacece0527dfb940ca130ac6d3fd992d0909d
          • MD5 SHA1 SHA512 SSDEEP

          INetC.dll

          • Path C:\Users\Admin\AppData\Local\Temp\nsc4066.tmp\INetC.dll
          • Size 23KB
          • SHA256 5233110ed8e95a4a1042f57d9b2dc72bc253e8cb5282437637a51e4e9fcb9079
          • MD5 SHA1 SHA512 SSDEEP

          System.dll

          • Path C:\Users\Admin\AppData\Local\Temp\nsc4066.tmp\System.dll
          • Size 12KB
          • SHA256 8dc562cda7217a3a52db898243de3e2ed68b80e62ddcb8619545ed0b4e7f65a8
          • MD5 SHA1 SHA512 SSDEEP

          UserInfo.dll

          • Path C:\Users\Admin\AppData\Local\Temp\nsc4066.tmp\UserInfo.dll
          • Size 4KB
          • SHA256 e54989d2b83e7282d0bec56b098635146aab5d5a283f1f89486816851ef885a0
          • MD5 SHA1 SHA512

          asdk.dll

          • Path C:\Users\Admin\AppData\Local\Temp\nsc4066.tmp\a\asdk.dll
          • Size 1.0MB
          • SHA256 74fcd2367fb1d9c0084547ebaf1c6db081946453a5d0a2d668d83d3c489a60a9
          • MD5 SHA1 SHA512 SSDEEP

          gcapi_dll.dll

          • Path C:\Users\Admin\AppData\Local\Temp\nsc4066.tmp\g\gcapi_dll.dll
          • Size 348KB
          • SHA256 d0e4581210a22135ce5deb47d9df4d636a94b3813e0649aab84822c9f08af2a0
          • MD5 SHA1 SHA512 SSDEEP

          nsDialogs.dll

          • Path C:\Users\Admin\AppData\Local\Temp\nsc4066.tmp\nsDialogs.dll
          • Size 9KB
          • SHA256 56b96add1978b1abba286f7f8982b0efbe007d4a48b3ded6a4d408e01d753fe2
          • MD5 SHA1 SHA512 SSDEEP

          nsProcess.dll

          • Path C:\Users\Admin\AppData\Local\Temp\nsc4066.tmp\nsProcess.dll
          • Size 4KB
          • SHA256 30c6c3dd3cc7fcea6e6081ce821adc7b2888542dae30bf00e881c0a105eb4d11
          • MD5 SHA1 SHA512 SSDEEP

          ServiceUninstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\nsc4066.tmp\p\ServiceUninstaller.dll
          • Size 497KB
          • SHA256 0b78d56aceefb4ff259660bd55bbb497ce29a5d60206b5d19d05e1442829e495
          • MD5 SHA1 SHA512 SSDEEP

          pfBL.dll

          • Path C:\Users\Admin\AppData\Local\Temp\nsc4066.tmp\p\pfBL.dll
          • Size 7.8MB
          • SHA256 1da78fe5f0d9f7213555e4f9598515d458d22b78f1c98ab3f3f4ae82fe634663
          • MD5 SHA1 SHA512 SSDEEP

          pfUI.dll

          • Path C:\Users\Admin\AppData\Local\Temp\nsc4066.tmp\ui\pfUI.dll
          • Size 18.1MB
          • SHA256 92a3d60fce2dae1d649721d1fa4679005fd8e8bcbf386718749d75b928ca3123
          • MD5 SHA1 SHA512 SSDEEP

          CC_Logo_40x96.png

          • Path C:\Users\Admin\AppData\Local\Temp\nsc4066.tmp\ui\res\CC_Logo_40x96.png
          • Size 2KB
          • SHA256 b013039e32d2f8e54cfebdbfdabc25f21aa0bbe9ef26a2a5319a20024961e9a7
          • MD5 SHA1 SHA512

          CC_logo_72x66.png

          • Path C:\Users\Admin\AppData\Local\Temp\nsc4066.tmp\ui\res\CC_logo_72x66.png
          • Size 7KB
          • SHA256 58e75de1789c90333daaf93176194d2a3d64f2eecdf57a4b9384a229e81f874f
          • MD5 SHA1 SHA512 SSDEEP

          PF_computer.png

          • Path C:\Users\Admin\AppData\Local\Temp\nsc4066.tmp\ui\res\PF_computer.png
          • Size 87KB
          • SHA256 dbd8b6fdb66604a0a5e8efe269fbfa598e4a94dc146006036409d905209da42b
          • MD5 SHA1 SHA512 SSDEEP

          memory/4060-119-0x0000000006AD0000-0x0000000006AE0000-memory.dmp

          memory/4060-227-0x0000000007A90000-0x0000000007A91000-memory.dmp

          memory/4060-224-0x0000000007CF0000-0x0000000007CF8000-memory.dmp

          memory/4060-221-0x0000000007C70000-0x0000000007C78000-memory.dmp

          memory/4060-175-0x0000000007A40000-0x0000000007A41000-memory.dmp

          memory/4060-171-0x0000000007A80000-0x0000000007A81000-memory.dmp

          memory/4060-168-0x0000000007B70000-0x0000000007B78000-memory.dmp

          memory/4060-166-0x0000000007B30000-0x0000000007B38000-memory.dmp

          memory/4060-154-0x0000000007A40000-0x0000000007A41000-memory.dmp

          memory/4060-151-0x0000000007A80000-0x0000000007A88000-memory.dmp

          memory/4060-148-0x0000000007A90000-0x0000000007A98000-memory.dmp

          memory/4060-146-0x0000000007A80000-0x0000000007A81000-memory.dmp

          memory/4060-145-0x0000000007A90000-0x0000000007A98000-memory.dmp

          memory/4060-143-0x0000000007CF0000-0x0000000007CF8000-memory.dmp

          memory/4060-125-0x0000000006D60000-0x0000000006D70000-memory.dmp