Analysis

  • max time kernel
    66s
  • max time network
    71s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    05-02-2023 12:48

General

  • Target

    5e243f79ecb539d0d1f75fce7ddfedeccee70a48.exe

  • Size

    3.6MB

  • MD5

    36fd273ea7607d3a203f257f4e2649ed

  • SHA1

    5e243f79ecb539d0d1f75fce7ddfedeccee70a48

  • SHA256

    471d501162e2a5cb6aab3f4f5362ff843d05ef9f20d9fd7ea29733d3a9875747

  • SHA512

    cf81163bc6d1f1141130fbe70944387b97d322afe837ad21a88a0be8f9fd87615bd7022cc572b1783871cc99f224258bae75855e805c733793b723ba0483597d

  • SSDEEP

    98304:VQF9SqUKUehGS26Ish7MUTjA+1VFnqWXvqaY4:VSSzMGS26x1MUTM+/Fh

Malware Config

Extracted

Family

aurora

C2

45.9.74.11:8081

Signatures

  • Aurora

    Aurora is a crypto wallet stealer written in Golang.

  • Detect PureCrypter injector 1 IoCs
  • PureCrypter

    PureCrypter is a .NET malware loader first seen in early 2021.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 4 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 52 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5e243f79ecb539d0d1f75fce7ddfedeccee70a48.exe
    "C:\Users\Admin\AppData\Local\Temp\5e243f79ecb539d0d1f75fce7ddfedeccee70a48.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:2004
    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\voiceadequovl.exe
      C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\voiceadequovl.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1900
      • C:\Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe
        "C:\Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1992
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMwA1AA==
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2044
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c powershell -ENC cwBlAHQALQBtAHAAcAByAGUAZgBlAHIAZQBuAGMAZQAgAC0AZQB4AGMAbAB1AHMAaQBvAG4AcABhAHQAaAAgAEMAOgBcAA==
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1540
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            powershell -ENC cwBlAHQALQBtAHAAcAByAGUAZgBlAHIAZQBuAGMAZQAgAC0AZQB4AGMAbAB1AHMAaQBvAG4AcABhAHQAaAAgAEMAOgBcAA==
            5⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:1560
        • C:\Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe
          C:\Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe
          4⤵
          • Executes dropped EXE
          • Suspicious use of WriteProcessMemory
          PID:1780
          • C:\Windows\SysWOW64\Wbem\wmic.exe
            wmic os get Caption
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:1804
          • C:\Windows\SysWOW64\cmd.exe
            cmd /C "wmic path win32_VideoController get name"
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:592
            • C:\Windows\SysWOW64\Wbem\WMIC.exe
              wmic path win32_VideoController get name
              6⤵
              • Suspicious use of AdjustPrivilegeToken
              PID:1712
          • C:\Windows\SysWOW64\cmd.exe
            cmd /C "wmic cpu get name"
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:1696
            • C:\Windows\SysWOW64\Wbem\WMIC.exe
              wmic cpu get name
              6⤵
                PID:1488

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\voiceadequovl.exe

      Filesize

      226.0MB

      MD5

      74c3abc3a7cdb1ca0addcc9805fcfb96

      SHA1

      afcc00843c5c5a65a261d403f5ed31b6e8fdd8ae

      SHA256

      698f81d675d409551ca3607fd24b22818aef8afae142bd9ee1bde95699abb3c0

      SHA512

      3228be12001eeab7f016ad2ad04c862465a3c14f6dfbe68c12dbb17911685bf1bc5e79023494fdbeef128d81e2567ec200914f603e45c8c1437f89c2ccd7e635

    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\voiceadequovl.exe

      Filesize

      225.2MB

      MD5

      eba089089fa2d80764cffe96237c6c85

      SHA1

      4d7acc939bf4e1ec93c20f2aa105b4e7d70fad76

      SHA256

      a8085555d61607a87312aaa31f43dcc9c4276c2970152da7470c7a8dbc358a75

      SHA512

      35f51ee8da18abf3be6c9b5f08f73a01e07cf3b770e62123d8df0ac9fe6e3c293d4d3bef145202826fe49105e82f28436edde56952c858988a6d4251c769d2a7

    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

      Filesize

      7KB

      MD5

      3d0ca02cf7e3a9bd1b6b7fd0a29679e9

      SHA1

      9650a4e0de064d355bff5040841e6d7114a3f817

      SHA256

      94ddd8c3b21802646054b4139399f7863d75b820bdd0bad5e70287c3ed094504

      SHA512

      5698d68d30e6782064898184ad85cb961808271f19f281f71e90e9e1184f25aeb38813dd6369f6567af5ac662877a6059823f83ae4549512fe37c1f375cb6082

    • C:\Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe

      Filesize

      217.4MB

      MD5

      be14383c72672c5915388519fba1e2ae

      SHA1

      df33391d39491a1bb5cc1baac08795bc84f5effe

      SHA256

      748588461ddc36a74ddd529e03c5973b7b2b2f73917deccf9618597d067a8315

      SHA512

      826be3128d994ed862626fe9be029d63a08bd8194ebc00c544683a9aa039e3903884ccc57b2202add5492fcb672999f74b0235d7ca8bccbefbfcc92967f087f6

    • C:\Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe

      Filesize

      216.6MB

      MD5

      73b8d1621f6124137df5e0508494f7c6

      SHA1

      2ada1516d6f55c31aa2f54385850c8e723ef0255

      SHA256

      c50d6210ad4387f9ab4389c787c6297773ad66c716146644740de83a70f76601

      SHA512

      7b8eb85e6f3edcbf3824b09fc2b9b25dbaaf0b9860487e96bb907c457fa0aba08b65eadd375bac27c6235a0734a0626d14a855f9025244a5288bb6036d47e612

    • C:\Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe

      Filesize

      142.4MB

      MD5

      f9f6199a19d3fb226e8e1efe7ed7500e

      SHA1

      1bf24b25ab69c87bfb5b927f6e6310a319b05d2a

      SHA256

      b65908033626cdeaf66ebcdccde31dd22dd37b33101f14c74bb9b9eba52b7534

      SHA512

      8665c5b8862b024f0d832c21a586d95c5acf681511ce10d6a3200347d424df66195c87d28c9bf2a9a45d9e54e9f90405518b8663b05d704f2b8d538c379ba0f0

    • \Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe

      Filesize

      206.2MB

      MD5

      42350a3da49c4200f99877457481e172

      SHA1

      35df2a0db7e34daeb79af33149880b7f43c3b5b7

      SHA256

      a458c5c49c46e3374519c9e0464c4b6df22bf7672a607f60cdd3b9fe45d38546

      SHA512

      0d6b20e55cbd7d350fc1e0df2eb6dc8958775e6695efcb1f2ffdd708e86f23ca97e1db1bdb59eb917bbf29902c7d13c94375ca8b97bdee21fb4348d091e60d26

    • \Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe

      Filesize

      202.6MB

      MD5

      6adc918a0a62b60e09792f9facf7c172

      SHA1

      d5f57c496c84c5b84ef25ba5e7de50e86d99a836

      SHA256

      53015a821b43545da7978a76c579fc21397c645aa1b9eb28ac87f02ae29cb353

      SHA512

      81ff3e22ee1959e1bd7434c0d4b2895e2fe007394681910e4cff005e6f7cf24565eae8163ffc99f204a380577557a1b7e2dc76b17840935fc0e647bf30559ade

    • \Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe

      Filesize

      216.4MB

      MD5

      2c2201a4b156884c1ccf8ed7f9aee162

      SHA1

      579c1fc778838fb580752f6d6395ad1e425e2dbd

      SHA256

      a98ae2ad4ade83e41899e004c4d31fcacd9cde888713644e66660b06a35f7ab7

      SHA512

      9b06e830d66872f032089744145e6c1da0e00f1bbfc3f3dffbce4c22086c7f7766bc6de510fae1d090e4d47ff54f9a9a5a83a776b0616947cd23c5d3bfa2e7d6

    • \Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe

      Filesize

      208.6MB

      MD5

      17a544826ed5d39ddf9f0a836c84987a

      SHA1

      49a601721308b1532b03d3020bdfd721ba45e36c

      SHA256

      f7c699e411f14e99d3cb9ebbaa3b91b2d46fd7d19aef5586a46b8d0635dca357

      SHA512

      9ba2033ff627eb00bd2687a371ef809f06b86f7d4ab0a4c33f8cd3030ecc6c3593f5fb7e7943f6f18168da874142fd939972a1f229b7091164052757d63fe754

    • memory/592-97-0x0000000000000000-mapping.dmp

    • memory/1488-100-0x0000000000000000-mapping.dmp

    • memory/1540-72-0x0000000000000000-mapping.dmp

    • memory/1560-73-0x0000000000000000-mapping.dmp

    • memory/1560-79-0x000000006F070000-0x000000006F61B000-memory.dmp

      Filesize

      5.7MB

    • memory/1560-95-0x000000006F070000-0x000000006F61B000-memory.dmp

      Filesize

      5.7MB

    • memory/1696-99-0x0000000000000000-mapping.dmp

    • memory/1712-98-0x0000000000000000-mapping.dmp

    • memory/1780-94-0x0000000000400000-0x0000000000731000-memory.dmp

      Filesize

      3.2MB

    • memory/1780-90-0x0000000000464C20-mapping.dmp

    • memory/1780-101-0x0000000000400000-0x0000000000731000-memory.dmp

      Filesize

      3.2MB

    • memory/1780-77-0x0000000000400000-0x0000000000731000-memory.dmp

      Filesize

      3.2MB

    • memory/1780-78-0x0000000000400000-0x0000000000731000-memory.dmp

      Filesize

      3.2MB

    • memory/1780-93-0x0000000000400000-0x0000000000731000-memory.dmp

      Filesize

      3.2MB

    • memory/1780-83-0x0000000000400000-0x0000000000731000-memory.dmp

      Filesize

      3.2MB

    • memory/1780-81-0x0000000000400000-0x0000000000731000-memory.dmp

      Filesize

      3.2MB

    • memory/1780-85-0x0000000000400000-0x0000000000731000-memory.dmp

      Filesize

      3.2MB

    • memory/1780-86-0x0000000000400000-0x0000000000731000-memory.dmp

      Filesize

      3.2MB

    • memory/1780-88-0x0000000000400000-0x0000000000731000-memory.dmp

      Filesize

      3.2MB

    • memory/1780-89-0x0000000000400000-0x0000000000731000-memory.dmp

      Filesize

      3.2MB

    • memory/1804-96-0x0000000000000000-mapping.dmp

    • memory/1900-54-0x0000000000000000-mapping.dmp

    • memory/1900-56-0x0000000074AB1000-0x0000000074AB3000-memory.dmp

      Filesize

      8KB

    • memory/1992-75-0x0000000005510000-0x0000000005682000-memory.dmp

      Filesize

      1.4MB

    • memory/1992-62-0x0000000000000000-mapping.dmp

    • memory/1992-66-0x00000000064E0000-0x0000000006880000-memory.dmp

      Filesize

      3.6MB

    • memory/1992-65-0x0000000000840000-0x0000000000FB4000-memory.dmp

      Filesize

      7.5MB

    • memory/2044-71-0x000000006F4F0000-0x000000006FA9B000-memory.dmp

      Filesize

      5.7MB

    • memory/2044-70-0x000000006F4F0000-0x000000006FA9B000-memory.dmp

      Filesize

      5.7MB

    • memory/2044-69-0x000000006F4F0000-0x000000006FA9B000-memory.dmp

      Filesize

      5.7MB

    • memory/2044-67-0x0000000000000000-mapping.dmp