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24-04-2021 20:28

210424-hdvwe2nvza 10

24-04-2021 19:13

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24-04-2021 19:13

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24-04-2021 19:13

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24-04-2021 19:13

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24-04-2021 15:54

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24-04-2021 08:51

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24-04-2021 06:48

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Analysis

  • max time kernel
    1789s
  • max time network
    1564s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    24-04-2021 19:13

General

  • Target

    keygen-step-4.exe

  • Size

    4.6MB

  • MD5

    563107b1df2a00f4ec868acd9e08a205

  • SHA1

    9cb9c91d66292f5317aa50d92e38834861e9c9b7

  • SHA256

    bf2bd257dde4921ce83c7c1303fafe7f9f81e53c2775d3c373ced482b22eb8a9

  • SHA512

    99a8d247fa435c4cd95be7bc64c7dd6e382371f3a3c160aac3995fd705e4fd3f6622c23784a4ae3457c87536347d15eda3f08aa616450778a99376df540d74d1

Score
10/10

Malware Config

Signatures

  • Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 14 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Drops file in System32 directory 4 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 3 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Modifies data under HKEY_USERS 30 IoCs
  • Modifies registry class 10 IoCs
  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs

Processes

  • C:\Windows\system32\services.exe
    C:\Windows\system32\services.exe
    1⤵
      PID:468
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k netsvcs
        2⤵
        • Suspicious use of NtCreateUserProcessOtherParentProcess
        • Drops file in System32 directory
        • Suspicious use of SetThreadContext
        • Drops file in Windows directory
        • Modifies registry class
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:856
        • C:\Windows\system32\wbem\WMIADAP.EXE
          wmiadap.exe /F /T /R
          3⤵
            PID:1996
        • C:\Windows\system32\svchost.exe
          C:\Windows\system32\svchost.exe -k SystemNetworkService
          2⤵
          • Drops file in System32 directory
          • Checks processor information in registry
          • Modifies data under HKEY_USERS
          • Modifies registry class
          PID:1592
      • C:\Users\Admin\AppData\Local\Temp\keygen-step-4.exe
        "C:\Users\Admin\AppData\Local\Temp\keygen-step-4.exe"
        1⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:1096
        • C:\Users\Admin\AppData\Local\Temp\RarSFX0\xiuhuali.exe
          "C:\Users\Admin\AppData\Local\Temp\RarSFX0\xiuhuali.exe"
          2⤵
          • Executes dropped EXE
          • Drops file in Program Files directory
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:2032
          • C:\Windows\SysWOW64\rundll32.exe
            "C:\Windows\System32\rundll32.exe" "C:\Program Files\install.dll",install
            3⤵
            • Loads dropped DLL
            • Modifies registry class
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:1396
        • C:\Users\Admin\AppData\Local\Temp\RarSFX0\JoSetp.exe
          "C:\Users\Admin\AppData\Local\Temp\RarSFX0\JoSetp.exe"
          2⤵
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:1960
          • C:\Windows\system32\WerFault.exe
            C:\Windows\system32\WerFault.exe -u -p 1960 -s 1524
            3⤵
            • Program crash
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious behavior: GetForegroundWindowSpam
            PID:780

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Program Files\install.dat

        MD5

        806c3221a013fec9530762750556c332

        SHA1

        36475bcfd0a18555d7c0413d007bbe80f7d321b5

        SHA256

        9bcecc5fb84d21db673c81a7ed1d10b28686b8261f79136f748ab7bbad7752f7

        SHA512

        56bbaafe7b0883f4e5dcff00ae69339a3b81ac8ba90b304aeab3e4e7e7523b568fd9b269241fc38a39f74894084f1f252a91c22b79cc0a16f9e135859a13145e

      • C:\Program Files\install.dll

        MD5

        fe60ddbeab6e50c4f490ddf56b52057c

        SHA1

        6a71fdf73761a1192fd9c6961f66754a63d6db17

        SHA256

        9fcfa73600ff1b588015ffa20779cec6714e48ee6ae15db8766f7ffd5ee3031d

        SHA512

        0113b47ba1a33a2f597a26c9b66435483373cde4edb183e0e92abef8ed003743f426ba5ffe25a5807c030cc14d8a95d73aa6af95a85f44a86dd40264ecb96536

      • C:\Users\Admin\AppData\Local\Temp\RarSFX0\JoSetp.exe

        MD5

        3b1b318df4d314a35dce9e8fd89e5121

        SHA1

        55b0f8d56212a74bda0fc5f8cc0632ef52a4bc71

        SHA256

        4df9e7fcd10900ae5def897377f54856b0ddad1798fa22614eba56096940885b

        SHA512

        f04faca320d344378dd31bf05556fb3ac02873e46e2140d5858162e739f5c25bc9b32d619587c84c36b768b9193ea5292d63f62bb0b8458b35d65959b52df6b4

      • C:\Users\Admin\AppData\Local\Temp\RarSFX0\JoSetp.exe

        MD5

        3b1b318df4d314a35dce9e8fd89e5121

        SHA1

        55b0f8d56212a74bda0fc5f8cc0632ef52a4bc71

        SHA256

        4df9e7fcd10900ae5def897377f54856b0ddad1798fa22614eba56096940885b

        SHA512

        f04faca320d344378dd31bf05556fb3ac02873e46e2140d5858162e739f5c25bc9b32d619587c84c36b768b9193ea5292d63f62bb0b8458b35d65959b52df6b4

      • C:\Users\Admin\AppData\Local\Temp\RarSFX0\xiuhuali.exe

        MD5

        e72eb3a565d7b5b83c7ff6fad519c6c9

        SHA1

        1a2668a26b01828eec1415aa614743abb0a4fb70

        SHA256

        8ff1e74643983f7ca9bca70f1bea562e805a86421defde1bd57fc0da3722f599

        SHA512

        71ae4db9c307c068f31a4e6471d950d1112d89d5661a4960dffbf6a7343cc313f98cfc35c5a10d38aae68be4b0a3f6a702fd5c28d938ca00094b26d0bcf03da3

      • C:\Users\Admin\AppData\Local\Temp\RarSFX0\xiuhuali.exe

        MD5

        e72eb3a565d7b5b83c7ff6fad519c6c9

        SHA1

        1a2668a26b01828eec1415aa614743abb0a4fb70

        SHA256

        8ff1e74643983f7ca9bca70f1bea562e805a86421defde1bd57fc0da3722f599

        SHA512

        71ae4db9c307c068f31a4e6471d950d1112d89d5661a4960dffbf6a7343cc313f98cfc35c5a10d38aae68be4b0a3f6a702fd5c28d938ca00094b26d0bcf03da3

      • \Program Files\install.dll

        MD5

        fe60ddbeab6e50c4f490ddf56b52057c

        SHA1

        6a71fdf73761a1192fd9c6961f66754a63d6db17

        SHA256

        9fcfa73600ff1b588015ffa20779cec6714e48ee6ae15db8766f7ffd5ee3031d

        SHA512

        0113b47ba1a33a2f597a26c9b66435483373cde4edb183e0e92abef8ed003743f426ba5ffe25a5807c030cc14d8a95d73aa6af95a85f44a86dd40264ecb96536

      • \Program Files\install.dll

        MD5

        fe60ddbeab6e50c4f490ddf56b52057c

        SHA1

        6a71fdf73761a1192fd9c6961f66754a63d6db17

        SHA256

        9fcfa73600ff1b588015ffa20779cec6714e48ee6ae15db8766f7ffd5ee3031d

        SHA512

        0113b47ba1a33a2f597a26c9b66435483373cde4edb183e0e92abef8ed003743f426ba5ffe25a5807c030cc14d8a95d73aa6af95a85f44a86dd40264ecb96536

      • \Program Files\install.dll

        MD5

        fe60ddbeab6e50c4f490ddf56b52057c

        SHA1

        6a71fdf73761a1192fd9c6961f66754a63d6db17

        SHA256

        9fcfa73600ff1b588015ffa20779cec6714e48ee6ae15db8766f7ffd5ee3031d

        SHA512

        0113b47ba1a33a2f597a26c9b66435483373cde4edb183e0e92abef8ed003743f426ba5ffe25a5807c030cc14d8a95d73aa6af95a85f44a86dd40264ecb96536

      • \Program Files\install.dll

        MD5

        fe60ddbeab6e50c4f490ddf56b52057c

        SHA1

        6a71fdf73761a1192fd9c6961f66754a63d6db17

        SHA256

        9fcfa73600ff1b588015ffa20779cec6714e48ee6ae15db8766f7ffd5ee3031d

        SHA512

        0113b47ba1a33a2f597a26c9b66435483373cde4edb183e0e92abef8ed003743f426ba5ffe25a5807c030cc14d8a95d73aa6af95a85f44a86dd40264ecb96536

      • \Users\Admin\AppData\Local\Temp\RarSFX0\JoSetp.exe

        MD5

        3b1b318df4d314a35dce9e8fd89e5121

        SHA1

        55b0f8d56212a74bda0fc5f8cc0632ef52a4bc71

        SHA256

        4df9e7fcd10900ae5def897377f54856b0ddad1798fa22614eba56096940885b

        SHA512

        f04faca320d344378dd31bf05556fb3ac02873e46e2140d5858162e739f5c25bc9b32d619587c84c36b768b9193ea5292d63f62bb0b8458b35d65959b52df6b4

      • \Users\Admin\AppData\Local\Temp\RarSFX0\JoSetp.exe

        MD5

        3b1b318df4d314a35dce9e8fd89e5121

        SHA1

        55b0f8d56212a74bda0fc5f8cc0632ef52a4bc71

        SHA256

        4df9e7fcd10900ae5def897377f54856b0ddad1798fa22614eba56096940885b

        SHA512

        f04faca320d344378dd31bf05556fb3ac02873e46e2140d5858162e739f5c25bc9b32d619587c84c36b768b9193ea5292d63f62bb0b8458b35d65959b52df6b4

      • \Users\Admin\AppData\Local\Temp\RarSFX0\JoSetp.exe

        MD5

        3b1b318df4d314a35dce9e8fd89e5121

        SHA1

        55b0f8d56212a74bda0fc5f8cc0632ef52a4bc71

        SHA256

        4df9e7fcd10900ae5def897377f54856b0ddad1798fa22614eba56096940885b

        SHA512

        f04faca320d344378dd31bf05556fb3ac02873e46e2140d5858162e739f5c25bc9b32d619587c84c36b768b9193ea5292d63f62bb0b8458b35d65959b52df6b4

      • \Users\Admin\AppData\Local\Temp\RarSFX0\JoSetp.exe

        MD5

        3b1b318df4d314a35dce9e8fd89e5121

        SHA1

        55b0f8d56212a74bda0fc5f8cc0632ef52a4bc71

        SHA256

        4df9e7fcd10900ae5def897377f54856b0ddad1798fa22614eba56096940885b

        SHA512

        f04faca320d344378dd31bf05556fb3ac02873e46e2140d5858162e739f5c25bc9b32d619587c84c36b768b9193ea5292d63f62bb0b8458b35d65959b52df6b4

      • \Users\Admin\AppData\Local\Temp\RarSFX0\JoSetp.exe

        MD5

        3b1b318df4d314a35dce9e8fd89e5121

        SHA1

        55b0f8d56212a74bda0fc5f8cc0632ef52a4bc71

        SHA256

        4df9e7fcd10900ae5def897377f54856b0ddad1798fa22614eba56096940885b

        SHA512

        f04faca320d344378dd31bf05556fb3ac02873e46e2140d5858162e739f5c25bc9b32d619587c84c36b768b9193ea5292d63f62bb0b8458b35d65959b52df6b4

      • \Users\Admin\AppData\Local\Temp\RarSFX0\xiuhuali.exe

        MD5

        e72eb3a565d7b5b83c7ff6fad519c6c9

        SHA1

        1a2668a26b01828eec1415aa614743abb0a4fb70

        SHA256

        8ff1e74643983f7ca9bca70f1bea562e805a86421defde1bd57fc0da3722f599

        SHA512

        71ae4db9c307c068f31a4e6471d950d1112d89d5661a4960dffbf6a7343cc313f98cfc35c5a10d38aae68be4b0a3f6a702fd5c28d938ca00094b26d0bcf03da3

      • \Users\Admin\AppData\Local\Temp\RarSFX0\xiuhuali.exe

        MD5

        e72eb3a565d7b5b83c7ff6fad519c6c9

        SHA1

        1a2668a26b01828eec1415aa614743abb0a4fb70

        SHA256

        8ff1e74643983f7ca9bca70f1bea562e805a86421defde1bd57fc0da3722f599

        SHA512

        71ae4db9c307c068f31a4e6471d950d1112d89d5661a4960dffbf6a7343cc313f98cfc35c5a10d38aae68be4b0a3f6a702fd5c28d938ca00094b26d0bcf03da3

      • \Users\Admin\AppData\Local\Temp\RarSFX0\xiuhuali.exe

        MD5

        e72eb3a565d7b5b83c7ff6fad519c6c9

        SHA1

        1a2668a26b01828eec1415aa614743abb0a4fb70

        SHA256

        8ff1e74643983f7ca9bca70f1bea562e805a86421defde1bd57fc0da3722f599

        SHA512

        71ae4db9c307c068f31a4e6471d950d1112d89d5661a4960dffbf6a7343cc313f98cfc35c5a10d38aae68be4b0a3f6a702fd5c28d938ca00094b26d0bcf03da3

      • \Users\Admin\AppData\Local\Temp\RarSFX0\xiuhuali.exe

        MD5

        e72eb3a565d7b5b83c7ff6fad519c6c9

        SHA1

        1a2668a26b01828eec1415aa614743abb0a4fb70

        SHA256

        8ff1e74643983f7ca9bca70f1bea562e805a86421defde1bd57fc0da3722f599

        SHA512

        71ae4db9c307c068f31a4e6471d950d1112d89d5661a4960dffbf6a7343cc313f98cfc35c5a10d38aae68be4b0a3f6a702fd5c28d938ca00094b26d0bcf03da3

      • \Users\Admin\AppData\Local\Temp\RarSFX0\xiuhuali.exe

        MD5

        e72eb3a565d7b5b83c7ff6fad519c6c9

        SHA1

        1a2668a26b01828eec1415aa614743abb0a4fb70

        SHA256

        8ff1e74643983f7ca9bca70f1bea562e805a86421defde1bd57fc0da3722f599

        SHA512

        71ae4db9c307c068f31a4e6471d950d1112d89d5661a4960dffbf6a7343cc313f98cfc35c5a10d38aae68be4b0a3f6a702fd5c28d938ca00094b26d0bcf03da3

      • memory/780-103-0x0000000001B80000-0x0000000001B81000-memory.dmp

        Filesize

        4KB

      • memory/780-102-0x000007FEFB6B1000-0x000007FEFB6B3000-memory.dmp

        Filesize

        8KB

      • memory/780-101-0x0000000000000000-mapping.dmp

      • memory/856-96-0x0000000000FF0000-0x000000000103B000-memory.dmp

        Filesize

        300KB

      • memory/856-97-0x00000000013A0000-0x0000000001410000-memory.dmp

        Filesize

        448KB

      • memory/1096-60-0x0000000075281000-0x0000000075283000-memory.dmp

        Filesize

        8KB

      • memory/1396-70-0x0000000000000000-mapping.dmp

      • memory/1396-91-0x00000000009B0000-0x0000000000AB1000-memory.dmp

        Filesize

        1.0MB

      • memory/1396-90-0x0000000010000000-0x0000000010002000-memory.dmp

        Filesize

        8KB

      • memory/1396-92-0x00000000006D0000-0x000000000072C000-memory.dmp

        Filesize

        368KB

      • memory/1592-100-0x0000000002920000-0x0000000002A1F000-memory.dmp

        Filesize

        1020KB

      • memory/1592-94-0x00000000FF91246C-mapping.dmp

      • memory/1592-99-0x0000000000370000-0x00000000003E0000-memory.dmp

        Filesize

        448KB

      • memory/1960-95-0x000000001B080000-0x000000001B082000-memory.dmp

        Filesize

        8KB

      • memory/1960-81-0x0000000000000000-mapping.dmp

      • memory/1960-93-0x0000000000170000-0x0000000000171000-memory.dmp

        Filesize

        4KB

      • memory/1960-86-0x00000000011E0000-0x00000000011E1000-memory.dmp

        Filesize

        4KB

      • memory/1960-89-0x0000000000150000-0x000000000016C000-memory.dmp

        Filesize

        112KB

      • memory/1960-88-0x0000000000140000-0x0000000000141000-memory.dmp

        Filesize

        4KB

      • memory/2032-66-0x0000000000000000-mapping.dmp