Analysis

  • max time kernel
    120s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    05-02-2023 07:36

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.

  • 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:1504
    • 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:1628
      • 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:1724
        • 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:1728
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c powershell -ENC cwBlAHQALQBtAHAAcAByAGUAZgBlAHIAZQBuAGMAZQAgAC0AZQB4AGMAbAB1AHMAaQBvAG4AcABhAHQAaAAgAEMAOgBcAA==
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1516
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            powershell -ENC cwBlAHQALQBtAHAAcAByAGUAZgBlAHIAZQBuAGMAZQAgAC0AZQB4AGMAbAB1AHMAaQBvAG4AcABhAHQAaAAgAEMAOgBcAA==
            5⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:1288
        • 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:1376
          • C:\Windows\SysWOW64\Wbem\wmic.exe
            wmic os get Caption
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:308
          • C:\Windows\SysWOW64\cmd.exe
            cmd /C "wmic path win32_VideoController get name"
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:1188
            • C:\Windows\SysWOW64\Wbem\WMIC.exe
              wmic path win32_VideoController get name
              6⤵
              • Suspicious use of AdjustPrivilegeToken
              PID:1612
          • C:\Windows\SysWOW64\cmd.exe
            cmd /C "wmic cpu get name"
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:1576
            • C:\Windows\SysWOW64\Wbem\WMIC.exe
              wmic cpu get name
              6⤵
                PID:1044

    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

      0138d6e39abb68546b665e78d3729ce0

      SHA1

      ceba3649692d2477315f99ed7351c74566e8b2f2

      SHA256

      1201e8c2a835a43edd64cc10dad13eeace4c4d2a18f6d5acc0a5fa0ebfa8bd77

      SHA512

      55fc49801b0ed52cf55dc3365380ddc554eee6a678b0fc83ee0a94b50164c29fa979704a348b3c28f6ec3623c02b15594883c3449fda3b306c2d479f6a66a7e4

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

      Filesize

      183.9MB

      MD5

      bbe19b2044cf1fed4f77bb3d81ce6750

      SHA1

      3df56f54d4a995de67150cec2dc3c62b610d4188

      SHA256

      f9563e82f79a65b4f3bfffa5fb3c80daf25dbe91330013a61991dfc7c5658c91

      SHA512

      acb6b56feac1e8ab8ee73295fa01367741da58adba44fe764510412f0af3b2f0a1e2de3c0a2164384be06592fc5eff41cce2f820860337b406346594dd73e1a2

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

      Filesize

      164.8MB

      MD5

      feda4b23ab4d096dea0c4e6d81419ef5

      SHA1

      57cbf2d5ae2d3247082aee1f3223fe82d63ab831

      SHA256

      4ab030232ea34a825f493424d0daa15f1cd6d20ee7431154dac038c97f975f56

      SHA512

      e64cab3f894f17bfbec32c718ec742c9fb3053a40429b3b1a5862215419104b58b95945720064190a012b8d88d5f4f11745ef5d53d68dda33768bb2456d1fc62

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

      Filesize

      64.4MB

      MD5

      71120716131d64ee1152c020e30b0ecd

      SHA1

      8bbd09b6b5d38b4f0ec86a5ba1183f64a987e8c4

      SHA256

      6ec090257e3a9d38eb1f8fce3b13efa8c278d7907848594319213b1e6d08017a

      SHA512

      7f5452a6401a04123ba681338f99132fb256e456cd3475cc20eab2d0d0c5c0bb2f410d8c80264d013e65768e99d1c2ea12a68053ff669824b9a969fe5ec80f4a

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

      Filesize

      184.5MB

      MD5

      ef4f6c583f90771d29976c6d06016da4

      SHA1

      d281979c046409579cc825873ff9ed5464081e19

      SHA256

      c713ffcbac2658f0c68737004768e7ab8a4b7eba5b3a9dcdfb6f7bc75175b847

      SHA512

      3455ff94fdafefa03f36c34c7b92f35db402f6bd3219f56fe93dbc896fc5191cde155425c447d59905fc132b5c4ba92bda2b9f6a784e07fec5e6c6674e4e4b68

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

      Filesize

      163.6MB

      MD5

      74d468014a1d5c120d3d31e58a565b7a

      SHA1

      fabe331ef5ee8388fee11b4f16e7899e1795c0c2

      SHA256

      f0c3d2458af953f1315a37b08f62f950265e4dbd979c87af518e25297279cd35

      SHA512

      8bbce2dd67cad5113f639d4c15e2e3c9e94d7374511038299219a800be22bd179074d1e2fee0ae5eb2f9a5850d29739ff4c32716e790d4402110b07920df8381

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

      Filesize

      183.6MB

      MD5

      2c509e6b258f3fc8afe1f81fde87760c

      SHA1

      c9fbec2965354376f1c10daa1322702f5841d36e

      SHA256

      e3afebf5f0ca62c1066b26cac85435e7e77d4440c0dec8cbd0145c3550cdf7d7

      SHA512

      0bd1e10ec77ab35b2437c07b8be72fe371e18f5f311f1f93ea4a8af334d57e323e8d64ced14fff2748c6b49eedc4af77c947c724b4ba4eff12f574fb66fdce29

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

      Filesize

      186.1MB

      MD5

      88e72b5ae3a2946a1e63110e9191d0d8

      SHA1

      62b475fc3c66877d5b4cf75b2230daeae56f63d0

      SHA256

      1270fcea065e425dc51d715c4d82dde764430c9ac39bd505ce81b646b9f3ae5d

      SHA512

      8f05cef2b3d347c193c13fc9d5831b078f1910dad9fb78d6f1a506ecaa76e8d7829d1c5cf3672796420d71ce21722a5cc1cb0cd0cf2b891b544885d75a0e226e

    • memory/308-96-0x0000000000000000-mapping.dmp

    • memory/1044-100-0x0000000000000000-mapping.dmp

    • memory/1188-97-0x0000000000000000-mapping.dmp

    • memory/1288-93-0x000000006FE10000-0x00000000703BB000-memory.dmp

      Filesize

      5.7MB

    • memory/1288-74-0x0000000000000000-mapping.dmp

    • memory/1288-95-0x000000006FE10000-0x00000000703BB000-memory.dmp

      Filesize

      5.7MB

    • memory/1376-85-0x0000000000400000-0x0000000000731000-memory.dmp

      Filesize

      3.2MB

    • memory/1376-92-0x0000000000400000-0x0000000000731000-memory.dmp

      Filesize

      3.2MB

    • memory/1376-94-0x0000000000400000-0x0000000000731000-memory.dmp

      Filesize

      3.2MB

    • memory/1376-80-0x0000000000400000-0x0000000000731000-memory.dmp

      Filesize

      3.2MB

    • memory/1376-88-0x0000000000400000-0x0000000000731000-memory.dmp

      Filesize

      3.2MB

    • memory/1376-77-0x0000000000400000-0x0000000000731000-memory.dmp

      Filesize

      3.2MB

    • memory/1376-78-0x0000000000400000-0x0000000000731000-memory.dmp

      Filesize

      3.2MB

    • memory/1376-101-0x0000000000400000-0x0000000000731000-memory.dmp

      Filesize

      3.2MB

    • memory/1376-84-0x0000000000400000-0x0000000000731000-memory.dmp

      Filesize

      3.2MB

    • memory/1376-82-0x0000000000400000-0x0000000000731000-memory.dmp

      Filesize

      3.2MB

    • memory/1376-89-0x0000000000464C20-mapping.dmp

    • memory/1376-87-0x0000000000400000-0x0000000000731000-memory.dmp

      Filesize

      3.2MB

    • memory/1516-72-0x0000000000000000-mapping.dmp

    • memory/1576-99-0x0000000000000000-mapping.dmp

    • memory/1612-98-0x0000000000000000-mapping.dmp

    • memory/1628-56-0x0000000075ED1000-0x0000000075ED3000-memory.dmp

      Filesize

      8KB

    • memory/1628-54-0x0000000000000000-mapping.dmp

    • memory/1724-65-0x0000000000ED0000-0x0000000001644000-memory.dmp

      Filesize

      7.5MB

    • memory/1724-66-0x0000000006410000-0x00000000067B0000-memory.dmp

      Filesize

      3.6MB

    • memory/1724-62-0x0000000000000000-mapping.dmp

    • memory/1724-73-0x00000000053D0000-0x0000000005542000-memory.dmp

      Filesize

      1.4MB

    • memory/1728-67-0x0000000000000000-mapping.dmp

    • memory/1728-69-0x000000006FE50000-0x00000000703FB000-memory.dmp

      Filesize

      5.7MB

    • memory/1728-71-0x000000006FE50000-0x00000000703FB000-memory.dmp

      Filesize

      5.7MB

    • memory/1728-70-0x000000006FE50000-0x00000000703FB000-memory.dmp

      Filesize

      5.7MB