Analysis

  • max time kernel
    90s
  • max time network
    153s
  • 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 01:19

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:428
    • 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:1236
      • 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:364
        • 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:4600
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c powershell -ENC cwBlAHQALQBtAHAAcAByAGUAZgBlAHIAZQBuAGMAZQAgAC0AZQB4AGMAbAB1AHMAaQBvAG4AcABhAHQAaAAgAEMAOgBcAA==
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:5012
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            powershell -ENC cwBlAHQALQBtAHAAcAByAGUAZgBlAHIAZQBuAGMAZQAgAC0AZQB4AGMAbAB1AHMAaQBvAG4AcABhAHQAaAAgAEMAOgBcAA==
            5⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:1016
        • 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:3468
          • C:\Windows\SysWOW64\Wbem\wmic.exe
            wmic os get Caption
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:1908
          • C:\Windows\SysWOW64\cmd.exe
            cmd /C "wmic path win32_VideoController get name"
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:3356
            • C:\Windows\SysWOW64\Wbem\WMIC.exe
              wmic path win32_VideoController get name
              6⤵
              • Suspicious use of AdjustPrivilegeToken
              PID:2700
          • C:\Windows\SysWOW64\cmd.exe
            cmd /C "wmic cpu get name"
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:3924
            • C:\Windows\SysWOW64\Wbem\WMIC.exe
              wmic cpu get name
              6⤵
                PID:2184

    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

      6195a91754effb4df74dbc72cdf4f7a6

      SHA1

      aba262f5726c6d77659fe0d3195e36a85046b427

      SHA256

      3254495a5513b37a2686a876d0040275414699e7ce760e7b5ee05e41a54b96f5

      SHA512

      ed723d15de267390dc93263538428e2c881be3494c996a810616b470d6df7d5acfcc8725687d5c50319ebef45caef44f769bfc32e0dc3abd249dacff4a12cc89

    • 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

      6e3da092513a39c8eb6f027cd6216f42

      SHA1

      5c8d1cfe16d58a04e3c0899e1cf5dd2f9c72ca84

      SHA256

      926ca89fbd5f335dde0626de8adf1e123dc321973ac3da50d1e0576db99e948e

      SHA512

      1e916b121908606aff4cead44a4870d27b72fc39ccbadf51f8cdc6df4cc659035fb61dd69653eebe1110206785562af0505563686cdb54c35e0700a4bf0003f7

    • 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

      369.8MB

      MD5

      14a9737eb666769fee7c28a00eb14e82

      SHA1

      ab8f2279f13a546fc32233a4da0855660fb07ec0

      SHA256

      a5fda7973fc4b9cf7fa14943302c0b6cd81c7615105ab0031e20fc5ed2a2396a

      SHA512

      973d5236da1979d31376d55f6b304fa166835d99a4574e3345e25ebed5b492cf9a3ae3f0a800d137fa8756288684b6d5c07ff97c8e5c2cbb698585f09373e9e7

    • 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

      307.9MB

      MD5

      9cc7c9d16717186b3e680fd0d4249337

      SHA1

      4a5beb49ec5aa77849b993df042da6300dc3e8cc

      SHA256

      87f398d43ba5cd43feff3a64ef27bce61d38de3d1f82b0be18af7023610eb3d4

      SHA512

      2c222195f543f74a019cdc1ad67f1b58331d3a53002f69de677caf03ac72baa48e65a1b511934af61b6f2bdcb242cd91d3c2001289cf41f3a8542c6ab60dae8f

    • memory/364-138-0x00000000001A0000-0x0000000000914000-memory.dmp
      Filesize

      7.5MB

    • memory/364-139-0x0000000006860000-0x0000000006882000-memory.dmp
      Filesize

      136KB

    • memory/364-135-0x0000000000000000-mapping.dmp
    • memory/1016-149-0x0000000000000000-mapping.dmp
    • memory/1016-160-0x0000000006100000-0x0000000006132000-memory.dmp
      Filesize

      200KB

    • memory/1016-164-0x0000000006F00000-0x0000000006F0A000-memory.dmp
      Filesize

      40KB

    • memory/1016-169-0x00000000059C0000-0x00000000059CE000-memory.dmp
      Filesize

      56KB

    • memory/1016-162-0x00000000060E0000-0x00000000060FE000-memory.dmp
      Filesize

      120KB

    • memory/1016-170-0x0000000007090000-0x00000000070AA000-memory.dmp
      Filesize

      104KB

    • memory/1016-171-0x0000000007070000-0x0000000007078000-memory.dmp
      Filesize

      32KB

    • memory/1016-161-0x0000000070F80000-0x0000000070FCC000-memory.dmp
      Filesize

      304KB

    • memory/1016-168-0x0000000007130000-0x00000000071C6000-memory.dmp
      Filesize

      600KB

    • memory/1236-132-0x0000000000000000-mapping.dmp
    • memory/1908-159-0x0000000000000000-mapping.dmp
    • memory/2184-167-0x0000000000000000-mapping.dmp
    • memory/2700-165-0x0000000000000000-mapping.dmp
    • memory/3356-163-0x0000000000000000-mapping.dmp
    • memory/3468-152-0x0000000000400000-0x0000000000731000-memory.dmp
      Filesize

      3.2MB

    • memory/3468-155-0x0000000000400000-0x0000000000731000-memory.dmp
      Filesize

      3.2MB

    • memory/3468-151-0x0000000000000000-mapping.dmp
    • memory/3468-172-0x0000000000400000-0x0000000000731000-memory.dmp
      Filesize

      3.2MB

    • memory/3468-157-0x0000000000400000-0x0000000000731000-memory.dmp
      Filesize

      3.2MB

    • memory/3924-166-0x0000000000000000-mapping.dmp
    • memory/4600-143-0x0000000005C80000-0x0000000005CE6000-memory.dmp
      Filesize

      408KB

    • memory/4600-145-0x00000000063E0000-0x00000000063FE000-memory.dmp
      Filesize

      120KB

    • memory/4600-146-0x0000000007A40000-0x00000000080BA000-memory.dmp
      Filesize

      6.5MB

    • memory/4600-144-0x0000000005D60000-0x0000000005DC6000-memory.dmp
      Filesize

      408KB

    • memory/4600-147-0x00000000068E0000-0x00000000068FA000-memory.dmp
      Filesize

      104KB

    • memory/4600-142-0x0000000005550000-0x0000000005B78000-memory.dmp
      Filesize

      6.2MB

    • memory/4600-141-0x0000000002A40000-0x0000000002A76000-memory.dmp
      Filesize

      216KB

    • memory/4600-140-0x0000000000000000-mapping.dmp
    • memory/5012-148-0x0000000000000000-mapping.dmp