Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-05-2024 04:10

General

  • Target

    b250fa535b14096a4ec33fc75963f21279aeaf0573127e6c3e7a895a5d3eb8a5.exe

  • Size

    5.2MB

  • MD5

    ca62b2ef13307d540b221e57bc85a0f4

  • SHA1

    1e7727734b3b01d0345e4a72f35cf874bc91f5a7

  • SHA256

    b250fa535b14096a4ec33fc75963f21279aeaf0573127e6c3e7a895a5d3eb8a5

  • SHA512

    bc2f2174a9d7fc3425535c199a769a7bf5043d745df73facfa52b7cd87d194780b428f24abb3063acecb72b383adc658926cb8cbcc3d1c7ce57e7dcf0430a936

  • SSDEEP

    98304:Dws2ANnKXOaeOgmhyNip46cXdVpVpmby+r2Ohkgkh:FKXbeO7XhQA28VS

Malware Config

Signatures

  • Detect PurpleFox Rootkit 7 IoCs

    Detect PurpleFox Rootkit.

  • Gh0st RAT payload 8 IoCs
  • Gh0strat

    Gh0st RAT is a remote access tool (RAT) with its source code public and it has been used by multiple Chinese groups.

  • PurpleFox

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

  • Drops file in Drivers directory 1 IoCs
  • Sets DLL path for service in the registry 2 TTPs 1 IoCs
  • Sets service image path in registry 2 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 6 IoCs
  • Loads dropped DLL 3 IoCs
  • UPX packed file 9 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops file in System32 directory 6 IoCs
  • Drops file in Program Files directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer settings 1 TTPs 39 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 8 IoCs
  • Suspicious use of WriteProcessMemory 29 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b250fa535b14096a4ec33fc75963f21279aeaf0573127e6c3e7a895a5d3eb8a5.exe
    "C:\Users\Admin\AppData\Local\Temp\b250fa535b14096a4ec33fc75963f21279aeaf0573127e6c3e7a895a5d3eb8a5.exe"
    1⤵
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:264
    • C:\Users\Admin\AppData\Local\Temp\R.exe
      C:\Users\Admin\AppData\Local\Temp\\R.exe
      2⤵
      • Sets DLL path for service in the registry
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in System32 directory
      PID:1076
    • C:\Users\Admin\AppData\Local\Temp\N.exe
      C:\Users\Admin\AppData\Local\Temp\\N.exe
      2⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4708
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ping -n 2 127.0.0.1 > nul && del C:\Users\Admin\AppData\Local\Temp\N.exe > nul
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4100
        • C:\Windows\SysWOW64\PING.EXE
          ping -n 2 127.0.0.1
          4⤵
          • Runs ping.exe
          PID:4080
    • C:\Users\Admin\AppData\Local\Temp\HD_b250fa535b14096a4ec33fc75963f21279aeaf0573127e6c3e7a895a5d3eb8a5.exe
      C:\Users\Admin\AppData\Local\Temp\HD_b250fa535b14096a4ec33fc75963f21279aeaf0573127e6c3e7a895a5d3eb8a5.exe
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:4868
      • C:\Program Files (x86)\Internet Explorer\iexplore.exe
        "C:\Program Files (x86)\Internet Explorer\iexplore.exe" http://se.360.cn/
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3712
        • C:\Program Files\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files\Internet Explorer\IEXPLORE.EXE" http://se.360.cn/
          4⤵
          • Modifies Internet Explorer settings
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:1492
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1492 CREDAT:17410 /prefetch:2
            5⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:1052
  • C:\Windows\SysWOW64\svchost.exe
    C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
    1⤵
      PID:4308
    • C:\Windows\SysWOW64\svchost.exe
      C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
      1⤵
      • Loads dropped DLL
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:3600
      • C:\Windows\SysWOW64\Remote Data.exe
        "C:\Windows\system32\Remote Data.exe" "c:\windows\system32\240602312.txt",MainThread
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        PID:3992
    • C:\Windows\SysWOW64\TXPlatfor.exe
      C:\Windows\SysWOW64\TXPlatfor.exe -auto
      1⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:1644
      • C:\Windows\SysWOW64\TXPlatfor.exe
        C:\Windows\SysWOW64\TXPlatfor.exe -acsi
        2⤵
        • Drops file in Drivers directory
        • Sets service image path in registry
        • Executes dropped EXE
        • Suspicious behavior: LoadsDriver
        • Suspicious use of AdjustPrivilegeToken
        PID:4076

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

      Filesize

      471B

      MD5

      c41ab5352ba79baac9ac093dd7eb2500

      SHA1

      1ffb0e70f86845daba211aeda43cad539d34ffd3

      SHA256

      558e13bb7aa293569457e9703d2db37e8365e2ab670b2c3484ada9336ed24895

      SHA512

      ccebe3f11039e14d39d4102652669fd372d179778bf73fae0659dd01da569bbf850b273cd3a4e13dc77b3fd4fb4d84d01525ac3a0dcb23b297c733da10bc2ff0

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

      Filesize

      404B

      MD5

      aa97731f396d3c01980bbbfa0b9980a6

      SHA1

      54b3fbf51d9cfc150463ba776c4bdc60a27ad1df

      SHA256

      10c2330d37ff3738b80771bded0bf2501c392db3085e60170efb33f853b7e131

      SHA512

      80f8c92cf52da0efb26d553016bd40810128cd609edc88c1e8a0f842008fbe38052567fc3888643fd3065cb322e578cb0bea62b5761efbff732ee7a51a41a871

    • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\verDFC1.tmp

      Filesize

      15KB

      MD5

      1a545d0052b581fbb2ab4c52133846bc

      SHA1

      62f3266a9b9925cd6d98658b92adec673cbe3dd3

      SHA256

      557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1

      SHA512

      bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\PGYR01BB\suggestions[1].en-US

      Filesize

      17KB

      MD5

      5a34cb996293fde2cb7a4ac89587393a

      SHA1

      3c96c993500690d1a77873cd62bc639b3a10653f

      SHA256

      c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

      SHA512

      e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

    • C:\Users\Admin\AppData\Local\Temp\HD_X.dat

      Filesize

      2.4MB

      MD5

      b509294fb0703bc2e35e7b20f07de7fc

      SHA1

      74b76864f3f045ed1e2742cab5d5a0aca9bb55d5

      SHA256

      b10e20c356c254af8151a48c1d2878a227f22c5ee5d851189971215bc269fe9d

      SHA512

      2636997a929f16cba52b0e5ee58a58d5784c4eaff8570cdf468398864fb17ab3960370c3ea540a07b876b2fcbe423d8877a0862c7a374788d5911798d86811ec

    • C:\Users\Admin\AppData\Local\Temp\HD_b250fa535b14096a4ec33fc75963f21279aeaf0573127e6c3e7a895a5d3eb8a5.exe

      Filesize

      2.8MB

      MD5

      acafd63654acc5f3799fbeb8f73d6b16

      SHA1

      1d4402e6a26a06779a35a2362d186ebca951b1b1

      SHA256

      1ab0fdf2d3c814acfd991054a001c4a19dc2fb1605e706a27f531cb32c79a6cb

      SHA512

      e127508b1f300d6499a9200a87c6a9e6bb2a6a174d05b84485d446663186562e6ff4eb3c827acf59bcd2d095d9889b6e4ddd8b5e41dd7a20d78d04ee06b79ed2

    • C:\Users\Admin\AppData\Local\Temp\N.exe

      Filesize

      377KB

      MD5

      4a36a48e58829c22381572b2040b6fe0

      SHA1

      f09d30e44ff7e3f20a5de307720f3ad148c6143b

      SHA256

      3de6c02f52a661b8f934f59541d0cf297bb489eb2155e346b63c7338e09aeaf8

      SHA512

      5d0ea398792f6b9eb3f188813c50b7f43929183b5733d2b595b2fd1c78722764fd15f62db1086b5c7edfb157661a6dcd544ddd80907ee7699dddbca1ef4022d0

    • C:\Users\Admin\AppData\Local\Temp\R.exe

      Filesize

      941KB

      MD5

      8dc3adf1c490211971c1e2325f1424d2

      SHA1

      4eec4a4e7cb97c5efa6c72e0731cd090c0c4adc5

      SHA256

      bc29f2022ab3b812e50c8681ff196f090c038b5ab51e37daffac4469a8c2eb2c

      SHA512

      ae92ea20b359849dcdba4808119b154e3af5ef3687ee09de1797610fe8c4d3eb9065b068074d35adddb4b225d17c619baff3944cb137ad196bcef7a6507f920d

    • C:\Windows\SysWOW64\240602312.txt

      Filesize

      899KB

      MD5

      37d8824f44640e42769e8ec87c6fe865

      SHA1

      8c6558e3449fcbd2f768f98414d60da5f2f26c3e

      SHA256

      5474e6fd2845ab160a54eeaab11ceeaa04fc578e23dca8c13a4ccf46ad46cd1d

      SHA512

      ebd602e2398321e923f9e636c96172e8271ceff08a97a397a63f94b7a120ad4b5461df2a8dbf1c6c3afe1b4c0385f36e63fcac399af8c89c20d41f4d7f3543eb

    • C:\Windows\SysWOW64\Remote Data.exe

      Filesize

      60KB

      MD5

      889b99c52a60dd49227c5e485a016679

      SHA1

      8fa889e456aa646a4d0a4349977430ce5fa5e2d7

      SHA256

      6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910

      SHA512

      08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641

    • memory/1644-26-0x0000000010000000-0x00000000101B6000-memory.dmp

      Filesize

      1.7MB

    • memory/1644-29-0x0000000010000000-0x00000000101B6000-memory.dmp

      Filesize

      1.7MB

    • memory/1644-28-0x0000000010000000-0x00000000101B6000-memory.dmp

      Filesize

      1.7MB

    • memory/4076-44-0x0000000010000000-0x00000000101B6000-memory.dmp

      Filesize

      1.7MB

    • memory/4076-39-0x0000000010000000-0x00000000101B6000-memory.dmp

      Filesize

      1.7MB

    • memory/4708-23-0x0000000010000000-0x00000000101B6000-memory.dmp

      Filesize

      1.7MB

    • memory/4708-19-0x0000000010000000-0x00000000101B6000-memory.dmp

      Filesize

      1.7MB

    • memory/4708-20-0x0000000010000000-0x00000000101B6000-memory.dmp

      Filesize

      1.7MB

    • memory/4708-17-0x0000000010000000-0x00000000101B6000-memory.dmp

      Filesize

      1.7MB