Analysis

  • max time kernel
    72s
  • max time network
    105s
  • 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 13:15

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 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 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 44 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:2016
    • 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:1992
      • 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 behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:4972
        • 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:4068
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c powershell -ENC cwBlAHQALQBtAHAAcAByAGUAZgBlAHIAZQBuAGMAZQAgAC0AZQB4AGMAbAB1AHMAaQBvAG4AcABhAHQAaAAgAEMAOgBcAA==
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1880
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            powershell -ENC cwBlAHQALQBtAHAAcAByAGUAZgBlAHIAZQBuAGMAZQAgAC0AZQB4AGMAbAB1AHMAaQBvAG4AcABhAHQAaAAgAEMAOgBcAA==
            5⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:4492
        • C:\Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe
          C:\Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe
          4⤵
          • Executes dropped EXE
          PID:60
        • 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:4288
          • C:\Windows\SysWOW64\Wbem\wmic.exe
            wmic os get Caption
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:1568
          • C:\Windows\SysWOW64\cmd.exe
            cmd /C "wmic path win32_VideoController get name"
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:4828
            • C:\Windows\SysWOW64\Wbem\WMIC.exe
              wmic path win32_VideoController get name
              6⤵
              • Suspicious use of AdjustPrivilegeToken
              PID:4536
          • C:\Windows\SysWOW64\cmd.exe
            cmd /C "wmic cpu get name"
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:3592
            • C:\Windows\SysWOW64\Wbem\WMIC.exe
              wmic cpu get name
              6⤵
                PID:2268

    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

    1
    T1081

    Discovery

    Query Registry

    1
    T1012

    System Information Discovery

    2
    T1082

    Collection

    Data from Local System

    1
    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

      40bf0736bce232ab3e168ea9704c3558

      SHA1

      a83d5d1d8514abceb2ce3418b494074e9fcda23c

      SHA256

      7064903d60b825182e89001415ba4316cf5281c97172fcc6d3940c3cd21bf27e

      SHA512

      96d2e3a764db2175857738c2a4cf5bb7fd37d751b1caf870a83a64825cb53ab16c22311ab1bcf6729454effa893a49aeb3948092762f87c06b471ddabf02ce49

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

      303.0MB

      MD5

      48ee5edb2974c06fc5af235bdeb3e489

      SHA1

      8b82d81923d52c76c1220362bed120869c83c656

      SHA256

      6eecacad82f8a407b4fb022dfe47cbae13c9a630983e4eaf4d5cd51b229e1c00

      SHA512

      b154a1f63431eb6f21139c19949a3add75ec8a65cc055f24459dad41800326befc5d695cb8d196931abde39d881d2b3e4ba4a6add33e32f2c4f90d6e35256420

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

      279.8MB

      MD5

      4e7429276e461a79828d1eca7a8e04a8

      SHA1

      7cbfd956bc215ef14115401411e6be1e5620354a

      SHA256

      77dac723396b234cf38d6327b41552cdbd1a51d81ca93c21e49ad56db09b925b

      SHA512

      74aec0826d5625d94e14ac124b78059b0174ebf3f976eeb6e14fb377b234e4ef7369a945a04e726f143943aaebd44b9584a6d6493e7fa48bc4ded077117b2214

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

      284.9MB

      MD5

      b46be1bb891854dd4bef806200aac21f

      SHA1

      79253ff265da78c7e770e530762c46d841a75968

      SHA256

      cb79d6d81178f9a696d63d52ee99d2a9d46c6a6374f22be240d8b196f081d990

      SHA512

      ea7afb4accf9d80128f0b3af06cb6c0f1cc065729b90af33422c2cc37623c31d291a2e68dbd35c218382fc329ed4d39e7bf0ccc1e8461d6ecf80c5948e1332cb

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

      280.9MB

      MD5

      305c639ae8068a7d8aac08a90fe4f461

      SHA1

      aebab3115e65be9134675a895cd76b42c6fe3e8c

      SHA256

      5d56239178be45cf5592323699eae8e6c3088f77a38d50de81e22bbe6166e8cc

      SHA512

      aac888f7bfa424a8fff1fdc0286555df2bdd45d92dfcb5a35b9fe17b4988bd2a874fe1ce357e343c20be090f5dd89e10ecbacdfdc71e531357b7d17d54cea54d

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

      185.9MB

      MD5

      80784bd74def26e6b0d44fd47ce8bbf1

      SHA1

      0ef46b873e04476daed1230a5792e3332f40dedc

      SHA256

      83764093bfacca6d868fe73f2df968d61ffa3800ada9d9c004c6624bedd65895

      SHA512

      4ecf4eabd735d0af25d7783a4c1ce71f228cde0f40b910d82369c547d7ffea35882348d45489c28feecc0389a662bf47cf932990ce6e9507cfa1ccbfe0da159b

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

      188.1MB

      MD5

      422543257d3fad82e38d8a6e5aeb9045

      SHA1

      1da98e6eb03cbd88ce86939ae3f24c1b0b9d8376

      SHA256

      1c53643537a39d8ac5143c9e8bc2e1cee3489faf8c82bb60c4baf3413a35b00e

      SHA512

      16deedbf02cc3665de6c4d5712ea2efc85c2b3b16b6b4ed3f77a1a7fb11d9342b31ccd12b1e22a6ecb1d464dfb33146e8b007af218e28cc16693f1c584793bfe

    • memory/60-151-0x0000000000000000-mapping.dmp
    • memory/1568-161-0x0000000000000000-mapping.dmp
    • memory/1880-148-0x0000000000000000-mapping.dmp
    • memory/1992-132-0x0000000000000000-mapping.dmp
    • memory/2268-170-0x0000000000000000-mapping.dmp
    • memory/3592-169-0x0000000000000000-mapping.dmp
    • memory/4068-142-0x0000000004D10000-0x0000000005338000-memory.dmp
      Filesize

      6.2MB

    • memory/4068-143-0x0000000005340000-0x00000000053A6000-memory.dmp
      Filesize

      408KB

    • memory/4068-147-0x0000000005FE0000-0x0000000005FFA000-memory.dmp
      Filesize

      104KB

    • memory/4068-146-0x0000000007140000-0x00000000077BA000-memory.dmp
      Filesize

      6.5MB

    • memory/4068-145-0x0000000005AF0000-0x0000000005B0E000-memory.dmp
      Filesize

      120KB

    • memory/4068-144-0x0000000005420000-0x0000000005486000-memory.dmp
      Filesize

      408KB

    • memory/4068-140-0x0000000000000000-mapping.dmp
    • memory/4068-141-0x0000000004540000-0x0000000004576000-memory.dmp
      Filesize

      216KB

    • memory/4288-159-0x0000000000400000-0x0000000000731000-memory.dmp
      Filesize

      3.2MB

    • memory/4288-174-0x0000000000400000-0x0000000000731000-memory.dmp
      Filesize

      3.2MB

    • memory/4288-154-0x0000000000400000-0x0000000000731000-memory.dmp
      Filesize

      3.2MB

    • memory/4288-157-0x0000000000400000-0x0000000000731000-memory.dmp
      Filesize

      3.2MB

    • memory/4288-153-0x0000000000000000-mapping.dmp
    • memory/4288-175-0x0000000000400000-0x0000000000731000-memory.dmp
      Filesize

      3.2MB

    • memory/4492-162-0x0000000007300000-0x0000000007332000-memory.dmp
      Filesize

      200KB

    • memory/4492-163-0x00000000737E0000-0x000000007382C000-memory.dmp
      Filesize

      304KB

    • memory/4492-164-0x00000000072C0000-0x00000000072DE000-memory.dmp
      Filesize

      120KB

    • memory/4492-165-0x0000000007720000-0x000000000772A000-memory.dmp
      Filesize

      40KB

    • memory/4492-171-0x00000000076F0000-0x00000000076FE000-memory.dmp
      Filesize

      56KB

    • memory/4492-149-0x0000000000000000-mapping.dmp
    • memory/4492-168-0x0000000007910000-0x00000000079A6000-memory.dmp
      Filesize

      600KB

    • memory/4492-173-0x00000000078B0000-0x00000000078B8000-memory.dmp
      Filesize

      32KB

    • memory/4492-172-0x00000000078C0000-0x00000000078DA000-memory.dmp
      Filesize

      104KB

    • memory/4536-167-0x0000000000000000-mapping.dmp
    • memory/4828-166-0x0000000000000000-mapping.dmp
    • memory/4972-135-0x0000000000000000-mapping.dmp
    • memory/4972-138-0x0000000000360000-0x0000000000AD4000-memory.dmp
      Filesize

      7.5MB

    • memory/4972-139-0x0000000006A20000-0x0000000006A42000-memory.dmp
      Filesize

      136KB