Analysis

  • max time kernel
    71s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-02-2023 06:52

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.

  • Checks computer location settings 2 TTPs 2 IoCs

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

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

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

  • 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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 41 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:5056
    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\voiceadequovl.exe
      C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\voiceadequovl.exe
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:4932
      • C:\Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe
        "C:\Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe"
        3⤵
        • Checks computer location settings
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:4752
        • 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:364
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c powershell -ENC cwBlAHQALQBtAHAAcAByAGUAZgBlAHIAZQBuAGMAZQAgAC0AZQB4AGMAbAB1AHMAaQBvAG4AcABhAHQAaAAgAEMAOgBcAA==
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:3968
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            powershell -ENC cwBlAHQALQBtAHAAcAByAGUAZgBlAHIAZQBuAGMAZQAgAC0AZQB4AGMAbAB1AHMAaQBvAG4AcABhAHQAaAAgAEMAOgBcAA==
            5⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:3412
        • 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:4832
          • C:\Windows\SysWOW64\Wbem\wmic.exe
            wmic os get Caption
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:2372
          • C:\Windows\SysWOW64\cmd.exe
            cmd /C "wmic path win32_VideoController get name"
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:1744
            • C:\Windows\SysWOW64\Wbem\WMIC.exe
              wmic path win32_VideoController get name
              6⤵
              • Suspicious use of AdjustPrivilegeToken
              PID:4244
          • C:\Windows\SysWOW64\cmd.exe
            cmd /C "wmic cpu get name"
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:2632
            • C:\Windows\SysWOW64\Wbem\WMIC.exe
              wmic cpu get name
              6⤵
                PID:4040

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

      Filesize

      1KB

      MD5

      4280e36a29fa31c01e4d8b2ba726a0d8

      SHA1

      c485c2c9ce0a99747b18d899b71dfa9a64dabe32

      SHA256

      e2486a1bdcba80dad6dd6210d7374bd70ae196a523c06ceda71370fd3ea78359

      SHA512

      494fe5f0ade03669e5830bed93c964d69b86629440148d7b0881cf53203fd89443ebff9b4d1ee9d96244f62af6edede622d9eacba37f80f389a0d522e4ad4ea4

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\ModuleAnalysisCache

      Filesize

      53KB

      MD5

      06ad34f9739c5159b4d92d702545bd49

      SHA1

      9152a0d4f153f3f40f7e606be75f81b582ee0c17

      SHA256

      474813b625f00710f29fa3b488235a6a22201851efb336bddf60d7d24a66bfba

      SHA512

      c272cd28ae164d465b779163ba9eca6a28261376414c6bbdfbd9f2128adb7f7ff1420e536b4d6000d0301ded2ec9036bc5c657588458bff41f176bdce8d74f92

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

      Filesize

      16KB

      MD5

      d55708f524ad20f7667ea648834dc5e4

      SHA1

      cd2098687980d6ad1a7c9920137a4ba3adb33eb1

      SHA256

      b9c0f29915c4248d29851ae01ee2dca41cca9cd00c364773004f03eee197631c

      SHA512

      ecff98b278cb5ebdf4c8e371306ca246eb5fc8ccd2cb1ca06029dfa87e875e7155dcdc436ac7c99c2e672e92da1dbb00ed614a2297f488c6366d057ee149baca

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

      Filesize

      357.9MB

      MD5

      1e227bacc822184e779269133dcdb98e

      SHA1

      7ce176d151fc693c9fcdcdbfd4f94df569c8eff4

      SHA256

      a9644f45948e070130c240121c79d18859a187b2c666b8dc16606ee9b2f6bc17

      SHA512

      ca90bd6bbe8e5ac949bdcb1c6953a82b37af012ba72e00211671b16882bd502d5353d606725d1cdd4bd22ed8b8be56ad92bf2afe7c8c49bb1aadfd4e3af17b52

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

      Filesize

      361.7MB

      MD5

      7c6a4e1eb6e6ddd7617c99de6d69ae81

      SHA1

      1da1799bd13763a4c95b8dac08bf18a9734b9d1d

      SHA256

      1f14389c2c095be76bce5dd6ab7e75c4c1a90095adaad5fcf4094b940f1074ca

      SHA512

      5d426feac13a630950a9d5b4a6826636486e70aad53c33a8e2c6c5fcfbbd05ecdddd0993c27cbaba580943084c7b9c9fd04190973f050327dedd3da1de4709f1

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

      Filesize

      298.2MB

      MD5

      b542a9aa218feeb8a20c636e514151e6

      SHA1

      c74b981914a59278ce507822ef3302f42ec1a446

      SHA256

      746988aab6213de3f769afc69bef85604afa3901b8dd1d3915b2f968451c2a5b

      SHA512

      5ad78475b7cb28b10b5f8a5a64d86af92fa64d186d506a67fe06fe601c00b0dfbd95f2b2a8925508604b3b67e8967796cfbfd0df831f1841e218560d73986c7a

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

      Filesize

      322.7MB

      MD5

      4a37923ef6cb704cc6f4f610e5515ec7

      SHA1

      a6dfc6f36be7882f7a41534d9bf7f93239cbc8fd

      SHA256

      f08b7a8601828cefad02a5821c5a40d8cd7e98d37ae509f8ab0fa2d3ccd45900

      SHA512

      e56fccacb278b48cde350a691c98b7a3978505b9a4fc56f29f17a14afcb9b8ab46db130155efb6b29e83b4ba154640e76593139ed48043f38f85ab316f69f9d3

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

      Filesize

      159.6MB

      MD5

      65913b08d91b544c74e20f9157ff36ca

      SHA1

      6f006894563a4a7ca41056b65327cb5659ceecbd

      SHA256

      1ebcc47fc52c1f015f5cee56e0d11f6483d80e6f794fab4432166d7c5ed8f5d4

      SHA512

      d0985a4fe4c2a908a8505e4c59cde9e4fdb1c41a0d70f2b41634da54264e2eae7f686c953b425b99136b581d9d69000d595f37358272821880269368d6e76698

    • memory/364-140-0x0000000000000000-mapping.dmp

    • memory/364-141-0x0000000003090000-0x00000000030C6000-memory.dmp

      Filesize

      216KB

    • memory/364-142-0x00000000057A0000-0x0000000005DC8000-memory.dmp

      Filesize

      6.2MB

    • memory/364-143-0x0000000005ED0000-0x0000000005F36000-memory.dmp

      Filesize

      408KB

    • memory/364-144-0x0000000005730000-0x0000000005796000-memory.dmp

      Filesize

      408KB

    • memory/364-145-0x0000000006650000-0x000000000666E000-memory.dmp

      Filesize

      120KB

    • memory/364-146-0x0000000007CC0000-0x000000000833A000-memory.dmp

      Filesize

      6.5MB

    • memory/364-147-0x0000000006B40000-0x0000000006B5A000-memory.dmp

      Filesize

      104KB

    • memory/1744-164-0x0000000000000000-mapping.dmp

    • memory/2372-162-0x0000000000000000-mapping.dmp

    • memory/2632-167-0x0000000000000000-mapping.dmp

    • memory/3412-163-0x0000000007120000-0x000000000712A000-memory.dmp

      Filesize

      40KB

    • memory/3412-165-0x0000000007370000-0x0000000007406000-memory.dmp

      Filesize

      600KB

    • memory/3412-171-0x00000000072B0000-0x00000000072B8000-memory.dmp

      Filesize

      32KB

    • memory/3412-170-0x00000000072D0000-0x00000000072EA000-memory.dmp

      Filesize

      104KB

    • memory/3412-169-0x0000000005BF0000-0x0000000005BFE000-memory.dmp

      Filesize

      56KB

    • memory/3412-149-0x0000000000000000-mapping.dmp

    • memory/3412-159-0x0000000006D40000-0x0000000006D72000-memory.dmp

      Filesize

      200KB

    • memory/3412-160-0x00000000739E0000-0x0000000073A2C000-memory.dmp

      Filesize

      304KB

    • memory/3412-161-0x0000000006350000-0x000000000636E000-memory.dmp

      Filesize

      120KB

    • memory/3968-148-0x0000000000000000-mapping.dmp

    • memory/4040-168-0x0000000000000000-mapping.dmp

    • memory/4244-166-0x0000000000000000-mapping.dmp

    • memory/4752-138-0x00000000007B0000-0x0000000000F24000-memory.dmp

      Filesize

      7.5MB

    • memory/4752-139-0x0000000006E70000-0x0000000006E92000-memory.dmp

      Filesize

      136KB

    • memory/4752-135-0x0000000000000000-mapping.dmp

    • memory/4832-152-0x0000000000400000-0x0000000000731000-memory.dmp

      Filesize

      3.2MB

    • memory/4832-156-0x0000000000400000-0x0000000000731000-memory.dmp

      Filesize

      3.2MB

    • memory/4832-155-0x0000000000400000-0x0000000000731000-memory.dmp

      Filesize

      3.2MB

    • memory/4832-151-0x0000000000000000-mapping.dmp

    • memory/4832-172-0x0000000000400000-0x0000000000731000-memory.dmp

      Filesize

      3.2MB

    • memory/4932-132-0x0000000000000000-mapping.dmp