Analysis

  • max time kernel
    68s
  • max time network
    132s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-11-2022 12:35

General

  • Target

    b6d048bbd972378940bcda6af3d0b3c24a0670a1d4ea9170c3b7adefce9169f3.exe

  • Size

    4.1MB

  • MD5

    64999f261cc6a55805ab93157f10c27f

  • SHA1

    344a7998ba357f52078772919457c0f84a4bee4e

  • SHA256

    b6d048bbd972378940bcda6af3d0b3c24a0670a1d4ea9170c3b7adefce9169f3

  • SHA512

    3a61b6982858bad6b5b743e3e0d5da5f86aa9d77dd731f81022a1c4eebd52f6ffb484858226c92b7e113fe3be771d9e027a3edddcffaf578949f1c5724468bd9

  • SSDEEP

    49152:McPmW7JVYzD2ZjQBCA0wEJVnfwZU5BcumN19Q+G0ytquwRlQmEbp7YuwCvM:Msmyc2CMJylPuoDElZws

Malware Config

Signatures

  • Registers COM server for autorun 1 TTPs 4 IoCs
  • Loads dropped DLL 3 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Checks installed software on the system 1 TTPs

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

  • Installs/modifies Browser Helper Object 2 TTPs 8 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

  • Drops file in Program Files directory 8 IoCs
  • Program crash 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 8 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b6d048bbd972378940bcda6af3d0b3c24a0670a1d4ea9170c3b7adefce9169f3.exe
    "C:\Users\Admin\AppData\Local\Temp\b6d048bbd972378940bcda6af3d0b3c24a0670a1d4ea9170c3b7adefce9169f3.exe"
    1⤵
    • Loads dropped DLL
    • Installs/modifies Browser Helper Object
    • Drops file in Program Files directory
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:4728
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32.exe /s "C:\Program Files (x86)\YoutubeAdBlocke\j197qdAaJxj5cK.x64.dll"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:4796
      • C:\Windows\system32\regsvr32.exe
        /s "C:\Program Files (x86)\YoutubeAdBlocke\j197qdAaJxj5cK.x64.dll"
        3⤵
        • Registers COM server for autorun
        • Loads dropped DLL
        • Installs/modifies Browser Helper Object
        • Modifies Internet Explorer settings
        • Modifies registry class
        PID:4904
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4728 -s 864
      2⤵
      • Program crash
      PID:4580
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 4728 -ip 4728
    1⤵
      PID:1244

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Program Files (x86)\YoutubeAdBlocke\j197qdAaJxj5cK.dat

      Filesize

      4KB

      MD5

      fa2d9d8d9252ee2afeeb66d8e174d7c1

      SHA1

      143cfd384987820367811eadeb11e36e94cb17ba

      SHA256

      0d055ed7bda6e800998d5727e9e38e2e14818c63ba0c1c1ca2a2180b71b35333

      SHA512

      9336fdc5aeb3657ae153f0a8d97c5c6eb97dbfa4f783226661336f0bf577927de47ed088043aa1f1f4e14002a13be13bbd56fc91b3697fda5b1b169ad0e2e5a0

    • C:\Program Files (x86)\YoutubeAdBlocke\j197qdAaJxj5cK.dll

      Filesize

      750KB

      MD5

      a1e5276fa264891a2394cfb992fef753

      SHA1

      3fc9b45acb1feaf1799f70cf93a965221ffe492e

      SHA256

      7d25cce7e647fbee7c157d7cad8b3a12abb66fa3b992adfede9de78687b69838

      SHA512

      ded2b69d13d0f6dd0b7f1fb0b6e8dd0ff1e6705ef5ecae284421826b630de43f0fc7c7783c3246c9fe31dedf07e35e3051366abcc666dec7ff6fe06416c62fcd

    • C:\Program Files (x86)\YoutubeAdBlocke\j197qdAaJxj5cK.tlb

      Filesize

      3KB

      MD5

      6bdd6ba23e0c129c5b4fa1a141aa21f6

      SHA1

      beef025f5611f84ce53f24e58435f070f92c064f

      SHA256

      14f706e58b4e332e1bc9b6fc6c650097db6e0ea91ac7ad0064aba01832ddd990

      SHA512

      828d9f58efd731252209ea1ed7d092c9e88190b81272fa704c8cb963f5f9d91172610b90e0bce763c0f5207b10d67d0fc4eb31294fd89dde2a260a19d324bc1b

    • C:\Program Files (x86)\YoutubeAdBlocke\j197qdAaJxj5cK.x64.dll

      Filesize

      882KB

      MD5

      0827270a2d7dca4230839de0511d4280

      SHA1

      264ce2775315b06a37cd51d7152df58e29a11b60

      SHA256

      6863740f9ed110fbf10ef18b8732ada23f4db42e998214ed97a09f5fbdd7571b

      SHA512

      d1bf285d6b084920c8d03170cc317939a6a5a3c8b67f71064478fc02feba512a1bffe7f10da424efd6441e61933af777b70c5ace4dce582a0b2bd3a02bdc76c4

    • C:\Program Files (x86)\YoutubeAdBlocke\j197qdAaJxj5cK.x64.dll

      Filesize

      882KB

      MD5

      0827270a2d7dca4230839de0511d4280

      SHA1

      264ce2775315b06a37cd51d7152df58e29a11b60

      SHA256

      6863740f9ed110fbf10ef18b8732ada23f4db42e998214ed97a09f5fbdd7571b

      SHA512

      d1bf285d6b084920c8d03170cc317939a6a5a3c8b67f71064478fc02feba512a1bffe7f10da424efd6441e61933af777b70c5ace4dce582a0b2bd3a02bdc76c4

    • C:\Program Files (x86)\YoutubeAdBlocke\j197qdAaJxj5cK.x64.dll

      Filesize

      882KB

      MD5

      0827270a2d7dca4230839de0511d4280

      SHA1

      264ce2775315b06a37cd51d7152df58e29a11b60

      SHA256

      6863740f9ed110fbf10ef18b8732ada23f4db42e998214ed97a09f5fbdd7571b

      SHA512

      d1bf285d6b084920c8d03170cc317939a6a5a3c8b67f71064478fc02feba512a1bffe7f10da424efd6441e61933af777b70c5ace4dce582a0b2bd3a02bdc76c4

    • memory/4728-132-0x0000000000400000-0x00000000004CA000-memory.dmp

      Filesize

      808KB

    • memory/4796-138-0x0000000000000000-mapping.dmp

    • memory/4904-141-0x0000000000000000-mapping.dmp