Analysis

  • max time kernel
    92s
  • max time network
    139s
  • 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 00:55

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.

  • 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 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:988
    • 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:4580
      • 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:3856
        • 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:4516
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c powershell -ENC cwBlAHQALQBtAHAAcAByAGUAZgBlAHIAZQBuAGMAZQAgAC0AZQB4AGMAbAB1AHMAaQBvAG4AcABhAHQAaAAgAEMAOgBcAA==
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:2988
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            powershell -ENC cwBlAHQALQBtAHAAcAByAGUAZgBlAHIAZQBuAGMAZQAgAC0AZQB4AGMAbAB1AHMAaQBvAG4AcABhAHQAaAAgAEMAOgBcAA==
            5⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:1484
        • 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:3172
          • C:\Windows\SysWOW64\Wbem\wmic.exe
            wmic os get Caption
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:4360
          • C:\Windows\SysWOW64\cmd.exe
            cmd /C "wmic path win32_VideoController get name"
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:4080
            • C:\Windows\SysWOW64\Wbem\WMIC.exe
              wmic path win32_VideoController get name
              6⤵
              • Suspicious use of AdjustPrivilegeToken
              PID:1084
          • C:\Windows\SysWOW64\cmd.exe
            cmd /C "wmic cpu get name"
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:680
            • C:\Windows\SysWOW64\Wbem\WMIC.exe
              wmic cpu get name
              6⤵
                PID:4244

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Persistence

    Registry Run Keys / Startup Folder

    1
    T1060

    Defense Evasion

    Modify Registry

    1
    T1112

    Credential Access

    Credentials in Files

    2
    T1081

    Discovery

    Query Registry

    1
    T1012

    System Information Discovery

    2
    T1082

    Collection

    Data from Local System

    2
    T1005

    Replay Monitor

    Loading Replay Monitor...

    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

      8d9036acab6625b17d9aec2ce6bf32b5

      SHA1

      0c4a19c3aec4335785a82058e69e6e1e8c7a688e

      SHA256

      6766124a927d2dac8a1135a4da26587a6968adb50388e252f0c1285640273987

      SHA512

      cbdc5650ac1965b262d08f88e3842e49fd492f0219b9d32271b8c599554dd97074b5abf5b548f289e7261634ac78cd79b632a340c846168a6b5df4dedac827dd

    • 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\Voice\voiceadequovl.exe
      Filesize

      368.8MB

      MD5

      f76d24a144fbd95b85b34eb8b130468f

      SHA1

      d606f3a57080965b8449d10beda4b178b4299c64

      SHA256

      132f88a8f99f84e8b16a27489fc460190b1cdf0d8e45ecf26208646151ef5232

      SHA512

      3308ddf938a72f2cbd995cdd5e5b1ad05fd11f241ef5c2de03fbd8e4661ac9b90d702ca92e3d8a8abe2aa98f4420f4def8ce0bc2981a84c7981bf1afd7120961

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

      369.8MB

      MD5

      14a9737eb666769fee7c28a00eb14e82

      SHA1

      ab8f2279f13a546fc32233a4da0855660fb07ec0

      SHA256

      a5fda7973fc4b9cf7fa14943302c0b6cd81c7615105ab0031e20fc5ed2a2396a

      SHA512

      973d5236da1979d31376d55f6b304fa166835d99a4574e3345e25ebed5b492cf9a3ae3f0a800d137fa8756288684b6d5c07ff97c8e5c2cbb698585f09373e9e7

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

      214.8MB

      MD5

      c0afa4c4bdac704fa67249865f755c39

      SHA1

      f48f081488ba3df1febaa3d2352e937d33813c5a

      SHA256

      c43cf0e0a3d15c9f67a09be7ccd7100f4cc27820fe06fd7da409e437988151d5

      SHA512

      bf67e27169a28cd3269cba9e378b8d8601fec0b812895a30db9b5cc6275e077ac523b64ae1193f42dbbe354a2498894843a94bfaf2b1b21eeabe44415eb1fb87

    • memory/680-167-0x0000000000000000-mapping.dmp
    • memory/1084-166-0x0000000000000000-mapping.dmp
    • memory/1484-163-0x0000000006E50000-0x0000000006E5A000-memory.dmp
      Filesize

      40KB

    • memory/1484-159-0x0000000006A80000-0x0000000006AB2000-memory.dmp
      Filesize

      200KB

    • memory/1484-171-0x0000000006FE0000-0x0000000006FE8000-memory.dmp
      Filesize

      32KB

    • memory/1484-170-0x0000000007000000-0x000000000701A000-memory.dmp
      Filesize

      104KB

    • memory/1484-169-0x0000000005520000-0x000000000552E000-memory.dmp
      Filesize

      56KB

    • memory/1484-165-0x00000000070A0000-0x0000000007136000-memory.dmp
      Filesize

      600KB

    • memory/1484-149-0x0000000000000000-mapping.dmp
    • memory/1484-161-0x0000000006060000-0x000000000607E000-memory.dmp
      Filesize

      120KB

    • memory/1484-160-0x0000000070B60000-0x0000000070BAC000-memory.dmp
      Filesize

      304KB

    • memory/2988-148-0x0000000000000000-mapping.dmp
    • memory/3172-150-0x0000000000000000-mapping.dmp
    • memory/3172-152-0x0000000000400000-0x0000000000731000-memory.dmp
      Filesize

      3.2MB

    • memory/3172-155-0x0000000000400000-0x0000000000731000-memory.dmp
      Filesize

      3.2MB

    • memory/3172-156-0x0000000000400000-0x0000000000731000-memory.dmp
      Filesize

      3.2MB

    • memory/3172-172-0x0000000000400000-0x0000000000731000-memory.dmp
      Filesize

      3.2MB

    • memory/3856-138-0x0000000000380000-0x0000000000AF4000-memory.dmp
      Filesize

      7.5MB

    • memory/3856-139-0x0000000006A40000-0x0000000006A62000-memory.dmp
      Filesize

      136KB

    • memory/3856-135-0x0000000000000000-mapping.dmp
    • memory/4080-164-0x0000000000000000-mapping.dmp
    • memory/4244-168-0x0000000000000000-mapping.dmp
    • memory/4360-162-0x0000000000000000-mapping.dmp
    • memory/4516-147-0x00000000060B0000-0x00000000060CA000-memory.dmp
      Filesize

      104KB

    • memory/4516-141-0x0000000002600000-0x0000000002636000-memory.dmp
      Filesize

      216KB

    • memory/4516-142-0x0000000004EB0000-0x00000000054D8000-memory.dmp
      Filesize

      6.2MB

    • memory/4516-143-0x0000000004E30000-0x0000000004E96000-memory.dmp
      Filesize

      408KB

    • memory/4516-146-0x0000000007420000-0x0000000007A9A000-memory.dmp
      Filesize

      6.5MB

    • memory/4516-145-0x0000000005B50000-0x0000000005B6E000-memory.dmp
      Filesize

      120KB

    • memory/4516-144-0x0000000005590000-0x00000000055F6000-memory.dmp
      Filesize

      408KB

    • memory/4516-140-0x0000000000000000-mapping.dmp
    • memory/4580-132-0x0000000000000000-mapping.dmp