Analysis

  • max time kernel
    76s
  • max time network
    80s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    05-02-2023 07:21

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 4 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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 56 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:1856
    • 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:1996
      • 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 behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1940
        • 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:984
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c powershell -ENC cwBlAHQALQBtAHAAcAByAGUAZgBlAHIAZQBuAGMAZQAgAC0AZQB4AGMAbAB1AHMAaQBvAG4AcABhAHQAaAAgAEMAOgBcAA==
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1048
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            powershell -ENC cwBlAHQALQBtAHAAcAByAGUAZgBlAHIAZQBuAGMAZQAgAC0AZQB4AGMAbAB1AHMAaQBvAG4AcABhAHQAaAAgAEMAOgBcAA==
            5⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:1700
        • 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:1744
          • C:\Windows\SysWOW64\Wbem\wmic.exe
            wmic os get Caption
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:1768
          • C:\Windows\SysWOW64\cmd.exe
            cmd /C "wmic path win32_VideoController get name"
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:664
            • C:\Windows\SysWOW64\Wbem\WMIC.exe
              wmic path win32_VideoController get name
              6⤵
                PID:1652
            • C:\Windows\SysWOW64\cmd.exe
              cmd /C "wmic cpu get name"
              5⤵
              • Suspicious use of WriteProcessMemory
              PID:1424
              • C:\Windows\SysWOW64\Wbem\WMIC.exe
                wmic cpu get name
                6⤵
                • Suspicious use of AdjustPrivilegeToken
                PID:1956
          • C:\Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe
            C:\Users\Admin\AppData\Roaming\Voice\voiceadequovl.exe
            4⤵
            • Executes dropped EXE
            PID:1548

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      213.7MB

      MD5

      1f5c4a3b2936dd8c183a75f68830953f

      SHA1

      8c399cf8b4b81fda5309771859193ae6d6f669e7

      SHA256

      ac6a5b93813c06b603a232e6583830dfb01cdaf2925c894859c8cde5f8cffc0f

      SHA512

      b0c7847912954cbb1bafb85673755e15918b69ad75925b8852ef10f7972c86653580ef594e9fcd2f6f527182aeb23baa24ef945cabfaace29fa745189a594b22

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

      Filesize

      207.2MB

      MD5

      b9abaa3438318a40ceed84d2d0a5820d

      SHA1

      b5e2296f7359d4dd12734f8d31d1782ad20f6012

      SHA256

      60c57c5da07ba016d3b70cfaab50ab3bd79ce76b37cc4dc5bb812fba96381cc5

      SHA512

      dcd0eed94dc3456fbe0eeb8c6800d4016dbde9c2e62d86288f5b2c1c1b2b1dff6a604106ea4906dbdbab4580fea933e9d6b352553e2692717f5e884757343ffa

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

      Filesize

      7KB

      MD5

      b1d5108d990213b4032df92f4de9b58d

      SHA1

      d3cac288dec9d6c35ac88e926497c54571bb4824

      SHA256

      24286f64a563dd5d9a70bfd2d5c6d0e410d39a03979f36ff4fdef6a607562f25

      SHA512

      c26621aa4344ce351fcbbe0c5980f1378426655a788a3ffe4144fe686119bdaecbd176a0e8bb82145a26fcf80194a61e1927e04d2b6a717ff20501e6ba06ed26

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

      Filesize

      191.1MB

      MD5

      1d73057e21f970300ed5c2ea6f1d77c7

      SHA1

      e1923b4a48f72ba7cefc081e2ccd75d4fc73af21

      SHA256

      50d4c244dda125c5f0bed7e27217dddf72924cb30529fc649a76d7c4ae5c04db

      SHA512

      939d1737f20498dd037c18e5b4bdc4928c2f3dbecd6c977debc306b2f25c992f8685839d8eca546f4fd1f64f0b4d8ad33a62e498974fe3bf43ace53f0b4b00a7

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

      Filesize

      189.3MB

      MD5

      141a84174a7e0223ab31af62c98d268d

      SHA1

      cb1ca0af102524d10d47c7e5b6fcab43626f9ead

      SHA256

      39b6d661c2929d9229603317fda273ab168477872869de71cb4b1e1c0129bb9a

      SHA512

      ff0e1adb226218d88dc59f9bd93f753afd161371c4239c3d59b6a616c89d4078c5cfb76eb78405cb875148866468e7b9c70ae295dc69aa90325a8e538c374403

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

      Filesize

      132.6MB

      MD5

      32b98b817c4de93797c41e771742035a

      SHA1

      5b49c7fd2bcaacbdd2341db11a1c7e473214bf0e

      SHA256

      72e1e469b82af0734711fa71d632ebffa813a14a559520fb5a073e3de0922f5b

      SHA512

      c28fc984c9618bfec1ad757d57b1a67f8d0000fb82f6a1855c16ee5083bbebaa04a2df4b84086a154cf3f0e62f670f98e5da363e21cd2e106c54d9077d4e2f1c

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

      Filesize

      100.8MB

      MD5

      43b92c359ab25fa38dd4ddc6e18fc6e2

      SHA1

      2644740ffd04dc0532f83ce264b15588dd692be2

      SHA256

      405c6777493818ceb50e15f300eb5c88ef7b0745360233b9f5d1a110a34e7417

      SHA512

      2753821a0d43745df24956bd3c85f1579a64df6cd61a8da5965ff6563d4eb8816fcb3e7b0c56d8658bf371645028df9fe5020500c989acd260fc3e1dd10252a5

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

      Filesize

      192.5MB

      MD5

      aac33aecb24503ebf9655e819c6968bd

      SHA1

      643e8f2b86cbdde30e433c2ea548f22dc0d56f8b

      SHA256

      b5367cfec494a5a219538f93a2e1442fb92a45bf09bf7f0529da03add456ba04

      SHA512

      dd4208d20c6638db66b45b879983766bf8f1ac047f646b8321cf91c89208e950598fa399bc7805f853520b50c913e8c65805b65a42d29a39597017dddc098305

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

      Filesize

      192.9MB

      MD5

      102256131f619c27f292e322e8afe236

      SHA1

      c9bfeaf20522964d8a463d0640a7574db0503b38

      SHA256

      91038e080c83faa926cbc18cb912d8c50862b9b8dff09a4a12f37c052be2244e

      SHA512

      dc966d4aa9966aa39276028b8db3bdc09f810294a08da46cd4a734f06a8f79ea962dd25d4bea54d295d93ccf36944e9b3b82f0d61394be4b694cd1d3709b3bb4

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

      Filesize

      193.1MB

      MD5

      63bf8c5ff17ce2b1e5b98d7c346b4878

      SHA1

      a9d542a0bf9a583e9a08b9a30707dba590d5d65e

      SHA256

      b881a82fa2c1f68ee119c0afe1eadc673c8bb39e00c7ea1db04585688ad5fa42

      SHA512

      dcf6a6cd306198240675dfff9b0a7e945f05ccc53c66cc9ce97371f4f260752f89a49b45a05ac90d2a1b4740a06670a8239ac43b2c1a7d185cc0999a661346ac

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

      Filesize

      193.6MB

      MD5

      93f1cca12b2ca08126a6de2507e1c065

      SHA1

      c04e41a6bcb115b0518431923682ad7f97362ed3

      SHA256

      eac4d3e10140a4218c81a2aab3e707b11c99a2b08e3d18afd9c62f8e4e401477

      SHA512

      c74f4c8023e6331e319e1dd21d4081a5f095db74ee0b10fdb26d182fe4ad14b9a3e7c43847705836097f7cf508bc779da43da6c06be0ad258867feedadeb45fa

    • memory/984-69-0x0000000070140000-0x00000000706EB000-memory.dmp

      Filesize

      5.7MB

    • memory/984-70-0x0000000070140000-0x00000000706EB000-memory.dmp

      Filesize

      5.7MB

    • memory/984-71-0x0000000070140000-0x00000000706EB000-memory.dmp

      Filesize

      5.7MB

    • memory/1700-91-0x000000006FE70000-0x000000007041B000-memory.dmp

      Filesize

      5.7MB

    • memory/1700-95-0x000000006FE70000-0x000000007041B000-memory.dmp

      Filesize

      5.7MB

    • memory/1744-96-0x0000000000400000-0x0000000000731000-memory.dmp

      Filesize

      3.2MB

    • memory/1744-89-0x0000000000400000-0x0000000000731000-memory.dmp

      Filesize

      3.2MB

    • memory/1744-83-0x0000000000400000-0x0000000000731000-memory.dmp

      Filesize

      3.2MB

    • memory/1744-85-0x0000000000400000-0x0000000000731000-memory.dmp

      Filesize

      3.2MB

    • memory/1744-86-0x0000000000400000-0x0000000000731000-memory.dmp

      Filesize

      3.2MB

    • memory/1744-88-0x0000000000400000-0x0000000000731000-memory.dmp

      Filesize

      3.2MB

    • memory/1744-81-0x0000000000400000-0x0000000000731000-memory.dmp

      Filesize

      3.2MB

    • memory/1744-102-0x0000000000400000-0x0000000000731000-memory.dmp

      Filesize

      3.2MB

    • memory/1744-79-0x0000000000400000-0x0000000000731000-memory.dmp

      Filesize

      3.2MB

    • memory/1744-78-0x0000000000400000-0x0000000000731000-memory.dmp

      Filesize

      3.2MB

    • memory/1744-94-0x0000000000400000-0x0000000000731000-memory.dmp

      Filesize

      3.2MB

    • memory/1940-74-0x0000000005530000-0x00000000056A2000-memory.dmp

      Filesize

      1.4MB

    • memory/1940-65-0x00000000008B0000-0x0000000001024000-memory.dmp

      Filesize

      7.5MB

    • memory/1940-66-0x0000000006490000-0x0000000006830000-memory.dmp

      Filesize

      3.6MB

    • memory/1996-56-0x0000000075E51000-0x0000000075E53000-memory.dmp

      Filesize

      8KB