Analysis

  • max time kernel
    84s
  • max time network
    81s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    05-02-2023 07:10

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:108
    • 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:872
      • 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:1464
        • 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:1088
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c powershell -ENC cwBlAHQALQBtAHAAcAByAGUAZgBlAHIAZQBuAGMAZQAgAC0AZQB4AGMAbAB1AHMAaQBvAG4AcABhAHQAaAAgAEMAOgBcAA==
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:636
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            powershell -ENC cwBlAHQALQBtAHAAcAByAGUAZgBlAHIAZQBuAGMAZQAgAC0AZQB4AGMAbAB1AHMAaQBvAG4AcABhAHQAaAAgAEMAOgBcAA==
            5⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:1588
        • 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:596
          • C:\Windows\SysWOW64\Wbem\wmic.exe
            wmic os get Caption
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:1072
          • C:\Windows\SysWOW64\cmd.exe
            cmd /C "wmic path win32_VideoController get name"
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:1144
            • C:\Windows\SysWOW64\Wbem\WMIC.exe
              wmic path win32_VideoController get name
              6⤵
              • Suspicious use of AdjustPrivilegeToken
              PID:1152
          • C:\Windows\SysWOW64\cmd.exe
            cmd /C "wmic cpu get name"
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:1608
            • 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

      365.5MB

      MD5

      ba50f2bca86ba947a8d2035bb9b35123

      SHA1

      a542b5c5d41174dc2475a219978123b7d14f958f

      SHA256

      17790c5c071280462ed8e617fd2edfff5bf0f40fb9add57f866f058fdbf24cb5

      SHA512

      08fdb619e411247c571710bc47df2463c95dc2fee82025e548b65ff1a3e4a53e663fafec9bcc5cc234f32211b25f6f9472786c1be543eb71629f32ec09f04379

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

      Filesize

      365.5MB

      MD5

      ba50f2bca86ba947a8d2035bb9b35123

      SHA1

      a542b5c5d41174dc2475a219978123b7d14f958f

      SHA256

      17790c5c071280462ed8e617fd2edfff5bf0f40fb9add57f866f058fdbf24cb5

      SHA512

      08fdb619e411247c571710bc47df2463c95dc2fee82025e548b65ff1a3e4a53e663fafec9bcc5cc234f32211b25f6f9472786c1be543eb71629f32ec09f04379

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

      Filesize

      7KB

      MD5

      681d2539f4c9be85853beefd61475dd4

      SHA1

      f298e11e572e940a9bb58454464ac2c5a3b3e2fe

      SHA256

      6032996cd41fb82539c28feb5adc130810bcdce7cf2c50ebed6d7de8f45e978d

      SHA512

      87d7db462aff1fa486f35130bc5ed9cf85bce74d895b40430dad38ab51b67679e6fcfd1db6e284d2cbf0f52143501e448f51469f3f83b411e1126746bb242fb8

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

      Filesize

      285.6MB

      MD5

      01b746473d65049c779518f576c75f08

      SHA1

      5b680c54ed596848bd6c85901234a8731a865849

      SHA256

      265128433af941447afdcf8caa43de0b869effaed4e3a87e1d93a56a095b320f

      SHA512

      d95eafa8ea989adbe9cd862d592181f7e6a9f6f59b9b87088baf76ff81862d8519e04f2fa53ba122b1fa3bb2891948f75ac70e02c6f4437c1b4116f43960ed64

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

      Filesize

      284.1MB

      MD5

      8f95687c7276e0f4f7dc27a5e6fce19f

      SHA1

      305df226954bf1d142838c5e2559188d8328346b

      SHA256

      f67c4fefe26eefb201e4af33685c5adc3115130ca0ca224ebe49b52786f56e1b

      SHA512

      d9400deed7317654ca29d1eef4678967b4734f738e4ca90e22e2c635d935d40d5ba00bbbec7e1f371018decf148d1dfac523de657f12f381abee675246b22810

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

      Filesize

      194.2MB

      MD5

      df3fb8223c2c0c76dd2d0fbe5e4b1b5b

      SHA1

      bc354adb87c57620ce4ffc072ae11ae338578fb7

      SHA256

      ff79f3caf6290ffe86b5a4b06a5a68f7c7f9b713b0b77ab0f21205a939b6009f

      SHA512

      e8b4677b9dfa7a01aa887cc53ae5fef6979fb7699e955caf343b67da2eec5c91d064890830f939ba4b2c478b2db80a6dd5321f9524b58ad81b44d4eb9b59de0c

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

      Filesize

      284.8MB

      MD5

      533377e3843f1f8a04b38687b7ba7448

      SHA1

      d3e42f9e213afe32ffd9f11ecbdc21e8972284d7

      SHA256

      117538702817304fba93536d138d71dafbf95832edd0ec8dbbd3bd5b188de693

      SHA512

      54b0bf8dcd1053421c7fbc8f77d9ec35ff30e820d158ce21cff868203d30d7b0a09273a79a75de77cd7d38880fd008bf61865e84f1d7b6801bc759e2fe5ec6b5

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

      Filesize

      287.9MB

      MD5

      e4113d735199d614eaf1ae1e4388bc27

      SHA1

      f2437277bc3780e18a4b43384e768e84e079d3c9

      SHA256

      5e474c08e07491a3cd49b85d4a134580b09921382bdb1336c79b914d3ddbfc33

      SHA512

      d5d45e07a9681e7db1cff4ec300e571a7d5904f6b6bbb3582cf84dbb214f66aedfdb4f20c88774335fd6118a0a79672c43e2ec55f74b97c13a06ad8d9793b7f9

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

      Filesize

      285.3MB

      MD5

      9b870c40688e84e3681d1957a5395369

      SHA1

      8fda23288329e7cd6a4335e91559ebd0f69e95c7

      SHA256

      05a35661a90c540d691a11ec4ebd45c91d6a790ec839dab064af7571a134e31b

      SHA512

      66826a1e90ea7f2233aa18ed932ae649d32a01e540e3aed42f04929330b461a9a5d9f056ebdff4651d3ed65895153f3c1262a97b48183aa2cb757142154c32d6

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

      Filesize

      285.5MB

      MD5

      94348489d185ece8249fedc8ecd0884f

      SHA1

      9c12b8f8e29db252de6ecdcbabfbfe594793c93a

      SHA256

      31737ae298a7a3c1d958e843a86f4952e0309342b4fbb55891e816f2ead90ff2

      SHA512

      e5dce2641f4b1fb35e094304f57bd0b3de6b1d47a9dfc115d52218743170732d329f5ba185e1273a290f9e2f25d5f8880f14ed062f68eb75cc5a31e470495fbc

    • memory/596-90-0x0000000000464C20-mapping.dmp

    • memory/596-85-0x0000000000400000-0x0000000000731000-memory.dmp

      Filesize

      3.2MB

    • memory/596-100-0x0000000000400000-0x0000000000731000-memory.dmp

      Filesize

      3.2MB

    • memory/596-89-0x0000000000400000-0x0000000000731000-memory.dmp

      Filesize

      3.2MB

    • memory/596-88-0x0000000000400000-0x0000000000731000-memory.dmp

      Filesize

      3.2MB

    • memory/596-86-0x0000000000400000-0x0000000000731000-memory.dmp

      Filesize

      3.2MB

    • memory/596-93-0x0000000000400000-0x0000000000731000-memory.dmp

      Filesize

      3.2MB

    • memory/596-94-0x0000000000400000-0x0000000000731000-memory.dmp

      Filesize

      3.2MB

    • memory/596-82-0x0000000000400000-0x0000000000731000-memory.dmp

      Filesize

      3.2MB

    • memory/596-80-0x0000000000400000-0x0000000000731000-memory.dmp

      Filesize

      3.2MB

    • memory/596-78-0x0000000000400000-0x0000000000731000-memory.dmp

      Filesize

      3.2MB

    • memory/596-77-0x0000000000400000-0x0000000000731000-memory.dmp

      Filesize

      3.2MB

    • memory/636-72-0x0000000000000000-mapping.dmp

    • memory/872-54-0x0000000000000000-mapping.dmp

    • memory/872-56-0x0000000075B41000-0x0000000075B43000-memory.dmp

      Filesize

      8KB

    • memory/1072-95-0x0000000000000000-mapping.dmp

    • memory/1088-71-0x000000006FB30000-0x00000000700DB000-memory.dmp

      Filesize

      5.7MB

    • memory/1088-70-0x000000006FB30000-0x00000000700DB000-memory.dmp

      Filesize

      5.7MB

    • memory/1088-69-0x000000006FB30000-0x00000000700DB000-memory.dmp

      Filesize

      5.7MB

    • memory/1088-67-0x0000000000000000-mapping.dmp

    • memory/1144-96-0x0000000000000000-mapping.dmp

    • memory/1152-97-0x0000000000000000-mapping.dmp

    • memory/1464-74-0x00000000054C0000-0x0000000005632000-memory.dmp

      Filesize

      1.4MB

    • memory/1464-62-0x0000000000000000-mapping.dmp

    • memory/1464-65-0x0000000000D90000-0x0000000001504000-memory.dmp

      Filesize

      7.5MB

    • memory/1464-66-0x00000000064C0000-0x0000000006860000-memory.dmp

      Filesize

      3.6MB

    • memory/1488-99-0x0000000000000000-mapping.dmp

    • memory/1588-84-0x000000006FAE0000-0x000000007008B000-memory.dmp

      Filesize

      5.7MB

    • memory/1588-73-0x0000000000000000-mapping.dmp

    • memory/1588-101-0x000000006FAE0000-0x000000007008B000-memory.dmp

      Filesize

      5.7MB

    • memory/1608-98-0x0000000000000000-mapping.dmp