Resubmissions

18-08-2021 21:21

210818-5xegav1ypa 10

22-05-2021 10:53

210522-fad5v5zgre 10

Analysis

  • max time kernel
    142s
  • max time network
    133s
  • platform
    windows11_x64
  • resource
    win11
  • submitted
    18-08-2021 21:21

General

  • Target

    7ec95111e00ce9c19ebf88e9683363390873451b00e0348bca4d80ef1e4b20ed.exe

  • Size

    22KB

  • MD5

    c6b6ec00b64069d66c8d14d65f7cfd8f

  • SHA1

    b90e6bf12728fa3b0984aabc32b39f1db082a1da

  • SHA256

    7ec95111e00ce9c19ebf88e9683363390873451b00e0348bca4d80ef1e4b20ed

  • SHA512

    c9d7c97c63806e87804c33530f48ba950542ba28421d354cb287c9bf027ff5a853b76200e87eadd3cde0469f4b8c93f8c4bc0e71f5e4aa1cdf33e05c0673254a

Score
10/10

Malware Config

Signatures

  • Suspicious use of NtCreateProcessExOtherParentProcess 1 IoCs
  • Drops file in System32 directory 6 IoCs
  • Drops file in Windows directory 6 IoCs
  • Program crash 1 IoCs
  • Checks processor information in registry 2 TTPs 7 IoCs

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

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies data under HKEY_USERS 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7ec95111e00ce9c19ebf88e9683363390873451b00e0348bca4d80ef1e4b20ed.exe
    "C:\Users\Admin\AppData\Local\Temp\7ec95111e00ce9c19ebf88e9683363390873451b00e0348bca4d80ef1e4b20ed.exe"
    1⤵
      PID:4972
      • C:\Windows\system32\WerFault.exe
        C:\Windows\system32\WerFault.exe -u -p 4972 -s 152
        2⤵
        • Program crash
        • Checks processor information in registry
        • Enumerates system info in registry
        • Suspicious behavior: EnumeratesProcesses
        PID:4124
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -pss -s 448 -p 4972 -ip 4972
      1⤵
      • Suspicious use of NtCreateProcessExOtherParentProcess
      • Suspicious use of WriteProcessMemory
      PID:4220
    • C:\Windows\System32\sihclient.exe
      C:\Windows\System32\sihclient.exe /cv sjuMneG/lkSK2C7c/HduvQ.0.2
      1⤵
      • Drops file in System32 directory
      • Drops file in Windows directory
      • Modifies data under HKEY_USERS
      PID:4584
    • C:\Windows\System32\svchost.exe
      C:\Windows\System32\svchost.exe -k netsvcs -p -s BITS
      1⤵
      • Drops file in Windows directory
      • Modifies data under HKEY_USERS
      PID:2996
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation -p -s SSDPSRV
      1⤵
        PID:4496
      • C:\Windows\System32\WaaSMedicAgent.exe
        C:\Windows\System32\WaaSMedicAgent.exe f3a62cb651cc7b970e2dca730e260b2e sjuMneG/lkSK2C7c/HduvQ.0.1.0.3.0
        1⤵
        • Drops file in System32 directory
        • Modifies data under HKEY_USERS
        PID:3112
      • C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.22000.100_none_04da31ff4c67c24a\TiWorker.exe
        C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.22000.100_none_04da31ff4c67c24a\TiWorker.exe -Embedding
        1⤵
        • Drops file in Windows directory
        • Suspicious use of AdjustPrivilegeToken
        PID:4680
      • C:\Windows\System32\WaaSMedicAgent.exe
        C:\Windows\System32\WaaSMedicAgent.exe f3a62cb651cc7b970e2dca730e260b2e sjuMneG/lkSK2C7c/HduvQ.0.1.0.3.0
        1⤵
        • Drops file in System32 directory
        • Modifies data under HKEY_USERS
        PID:1176
      • C:\Windows\System32\WaaSMedicAgent.exe
        C:\Windows\System32\WaaSMedicAgent.exe f3a62cb651cc7b970e2dca730e260b2e sjuMneG/lkSK2C7c/HduvQ.0.1.0.3.0
        1⤵
        • Modifies data under HKEY_USERS
        PID:2244

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

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      Downloads

      • C:\Windows\system32\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157

        MD5

        8a80554c91d9fca8acb82f023de02f11

        SHA1

        5f36b2ea290645ee34d943220a14b54ee5ea5be5

        SHA256

        ca3d163bab055381827226140568f3bef7eaac187cebd76878e0b63e9e442356

        SHA512

        ca4b6defb8adcc010050bc8b1bb8f8092c4928b8a0fba32146abcfb256e4d91672f88ca2cdf6210e754e5b8ac5e23fb023806ccd749ac8b701f79a691f03c87a

      • C:\Windows\system32\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157

        MD5

        8a80554c91d9fca8acb82f023de02f11

        SHA1

        5f36b2ea290645ee34d943220a14b54ee5ea5be5

        SHA256

        ca3d163bab055381827226140568f3bef7eaac187cebd76878e0b63e9e442356

        SHA512

        ca4b6defb8adcc010050bc8b1bb8f8092c4928b8a0fba32146abcfb256e4d91672f88ca2cdf6210e754e5b8ac5e23fb023806ccd749ac8b701f79a691f03c87a

      • C:\Windows\system32\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157

        MD5

        d7a6e7546e1abb638c8f13c0e7c9173a

        SHA1

        c594ce05e31a0ed3d3ba1ac7d4bf0cc257d16d14

        SHA256

        4271a31911d6b081ce879c0d78cf043335983a6198292e1d7bbcfeef6f728e42

        SHA512

        4200a8e3f11009f4daefd97533ab49f6c662fae678ce3f5d996e30636b0b0ca8e953c654da4f33838a5bc7bde3c459245602ebc50c81c0a89d66d81bead6d1fe

      • C:\Windows\system32\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157

        MD5

        7a0778ddf3c007e5c9fdeb6821d42ff8

        SHA1

        bf5e52fa3bfef2a930acfefbcfc90baf96937fa4

        SHA256

        9e7ba9b4423d45cbb8d47739b1c387a6e386a00b76bcffe689dcda4718e38144

        SHA512

        7341b2e29e25be61d3bdbd7343319abbccb26e73183a8b8b53d062840285b39ea4b5f6cb48376e19501b8ebc4b67e75297678b13bea5230a6c15dd0eb8e4ac60

      • memory/2996-146-0x000001FA99660000-0x000001FA99670000-memory.dmp

        Filesize

        64KB

      • memory/2996-147-0x000001FA996E0000-0x000001FA996F0000-memory.dmp

        Filesize

        64KB

      • memory/2996-148-0x000001FA9BCE0000-0x000001FA9BCE4000-memory.dmp

        Filesize

        16KB