Analysis

  • max time kernel
    166s
  • max time network
    165s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18/03/2024, 19:07

General

  • Target

    f5b9ae5e96662bba2b9d777e4509a7ce68e4a4b59351ff336962804467ca0d5d.exe

  • Size

    2.8MB

  • MD5

    912f653aef7196ec35a45dde87ac9c3c

  • SHA1

    62878d6d61883dfd0ba2efeae8a35696494d6c2d

  • SHA256

    f5b9ae5e96662bba2b9d777e4509a7ce68e4a4b59351ff336962804467ca0d5d

  • SHA512

    d5f6343c96953d2ab4ec6241b0430d3e1b1306d00079259f492458da0aae4e0f8f2e7c62a0050fdb69a73422dee15aad750bb67fa6b8cdcb440067f740882dc6

  • SSDEEP

    24576:yCwsbKgbQ5NANIvGTYwMHXA+wT1kfTw4SIuvB74fgt7ibhRM5QhKehFdMtRj7nHz:yCwsbCANnKXferL7Vwe/Gg0P+WhEYFg

Malware Config

Signatures

  • Detect PurpleFox Rootkit 9 IoCs

    Detect PurpleFox Rootkit.

  • Gh0st RAT payload 10 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 11 IoCs

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

  • 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 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).

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 8 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 29 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f5b9ae5e96662bba2b9d777e4509a7ce68e4a4b59351ff336962804467ca0d5d.exe
    "C:\Users\Admin\AppData\Local\Temp\f5b9ae5e96662bba2b9d777e4509a7ce68e4a4b59351ff336962804467ca0d5d.exe"
    1⤵
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2092
    • 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:2176
    • 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:880
      • 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:1740
        • C:\Windows\SysWOW64\PING.EXE
          ping -n 2 127.0.0.1
          4⤵
          • Runs ping.exe
          PID:2728
    • C:\Users\Admin\AppData\Local\Temp\HD_f5b9ae5e96662bba2b9d777e4509a7ce68e4a4b59351ff336962804467ca0d5d.exe
      C:\Users\Admin\AppData\Local\Temp\HD_f5b9ae5e96662bba2b9d777e4509a7ce68e4a4b59351ff336962804467ca0d5d.exe
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:1276
      • C:\Program Files (x86)\Windows Media Player\setup_wm.exe
        "C:\Program Files (x86)\Windows Media Player\setup_wm.exe" /RunOnce:C:\Users\Admin\AppData\Local\Temp\HD_f5b9ae5e96662bba2b9d777e4509a7ce68e4a4b59351ff336962804467ca0d5d.exe
        3⤵
          PID:3216
        • C:\Windows\SysWOW64\unregmp2.exe
          "C:\Windows\System32\unregmp2.exe" /AsyncFirstLogon
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:4108
          • C:\Windows\system32\unregmp2.exe
            "C:\Windows\SysNative\unregmp2.exe" /AsyncFirstLogon /REENTRANT
            4⤵
            • Enumerates connected drives
            • Suspicious use of AdjustPrivilegeToken
            PID:3608
    • C:\Windows\SysWOW64\svchost.exe
      C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
      1⤵
        PID:2240
      • 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:4944
        • C:\Windows\SysWOW64\Remote Data.exe
          "C:\Windows\system32\Remote Data.exe" "c:\windows\system32\240626140.txt",MainThread
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4528
      • C:\Windows\SysWOW64\TXPlatfor.exe
        C:\Windows\SysWOW64\TXPlatfor.exe -auto
        1⤵
        • Executes dropped EXE
        • Suspicious use of WriteProcessMemory
        PID:1632
        • 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:2656

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            • C:\Users\Admin\AppData\Local\Microsoft\Media Player\CurrentDatabase_400.wmdb

              Filesize

              64KB

              MD5

              fc240c081ec382df4b74d591d7d37a45

              SHA1

              396e9d8accb2ff8b32e6c3957808cb87d23ad47c

              SHA256

              8cfeb277627a0fc9f2596c83dc37f9a3d8871293cd88dadd08f32098bf936038

              SHA512

              d8f83773c330b88b43f9ebc6220aa98368854e44a75b73a8575e7171f6c32e784d404e5a2e2e7787d3c71c0cfecdbb983631b639d9fee879b374d498d2ef0ab7

            • C:\Users\Admin\AppData\Local\Microsoft\Windows Media\12.0\WMSDKNS.XML

              Filesize

              9KB

              MD5

              7050d5ae8acfbe560fa11073fef8185d

              SHA1

              5bc38e77ff06785fe0aec5a345c4ccd15752560e

              SHA256

              cb87767c4a384c24e4a0f88455f59101b1ae7b4fb8de8a5adb4136c5f7ee545b

              SHA512

              a7a295ac8921bb3dde58d4bcde9372ed59def61d4b7699057274960fa8c1d1a1daff834a93f7a0698e9e5c16db43af05e9fd2d6d7c9232f7d26ffcff5fc5900b

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

              Filesize

              2.6MB

              MD5

              274fe01eb0f4cd402c3cfdeda4b30715

              SHA1

              72db93e86caaadf2f28e5265ebfbc2ea6ba9e705

              SHA256

              843743adaef60d2f490d2702487f7687ffa36524d11ad89feed31bbddfd21d40

              SHA512

              6d71d57566f436c6e1242421070bca8c62ba95a7ccfc73ae5efef54f93482b3e3b742bda361b7c713a5e5158f11310401341bd1ddd4f011ba33f77c5e9543798

            • C:\Users\Admin\AppData\Local\Temp\HD_f5b9ae5e96662bba2b9d777e4509a7ce68e4a4b59351ff336962804467ca0d5d.exe

              Filesize

              163KB

              MD5

              4bb8384ee066d842d90793183282aba5

              SHA1

              2f406c1a5cb768ab463064b310a36ecff441764e

              SHA256

              ee2cd68f5734cbd9ec00bada4724d53c8751efedf934edee28e6cb181fd7599c

              SHA512

              31405301b7a877ecc427bd4f86aaee4f9f34c5f7bca58df3183189c1f4afe5c84ebbc6abc775667492791ce811505755b231184040b889c9694ed5a852d36d48

            • 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:\Users\Admin\AppData\Local\Temp\wmsetup.log

              Filesize

              1KB

              MD5

              c5afe2dc9a9a774523306671106b1c16

              SHA1

              09fd32001bfa12e6759af515db859283873512e9

              SHA256

              d0914f20658f0c69093d55d0896dbf42b457fc4ab084e24fb516db47e6b981c4

              SHA512

              173708af81ba4075a24340abc0f77ea11ac0a56a237e3fce13a3a03f18a73d298a67a9b3e00a24b5902facfbb0f9a31c4cfbd6ef2130ccd3215b6f87e63ffd07

            • C:\Windows\SysWOW64\240626140.txt

              Filesize

              899KB

              MD5

              f72707ad5a219115874fa567ca1b49f1

              SHA1

              37383e3b518be13177d13868b465639e0fef3983

              SHA256

              59cdcd7435a58eee589e7e282cd143888d820e4c61fec2f95b5bc51e34f6b0b7

              SHA512

              d2b05ff12889c2bc2883e96a9bfdc39b6db0878f9390767d5fb6571874241ddd5adfb03eb1e8ab626f0c3cd18d142f6867cf914717b587f0583c848f35bb82d0

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

              Filesize

              60KB

              MD5

              889b99c52a60dd49227c5e485a016679

              SHA1

              8fa889e456aa646a4d0a4349977430ce5fa5e2d7

              SHA256

              6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910

              SHA512

              08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641

            • C:\Windows\SysWOW64\TXPlatfor.exe

              Filesize

              64KB

              MD5

              8bbe952c173882205a4330190b15f2c7

              SHA1

              c3b1a4c135819dc7d2cb064f6b09b14de43f116e

              SHA256

              7c60c328b2fa904477947e1d5c525aa660d355b3351fa64711fe9c110151f26f

              SHA512

              9977410e915ab7f457506d0497e55ea97476fb944a1a4d439e801f6ef0bfb828186d0a4613c250c26b70902caf606d824ae70e1394176047539a6c5c28770e1a

            • memory/880-31-0x0000000010000000-0x00000000101B6000-memory.dmp

              Filesize

              1.7MB

            • memory/880-21-0x0000000010000000-0x00000000101B6000-memory.dmp

              Filesize

              1.7MB

            • memory/880-20-0x0000000010000000-0x00000000101B6000-memory.dmp

              Filesize

              1.7MB

            • memory/880-17-0x0000000010000000-0x00000000101B6000-memory.dmp

              Filesize

              1.7MB

            • memory/1632-34-0x0000000010000000-0x00000000101B6000-memory.dmp

              Filesize

              1.7MB

            • memory/1632-29-0x0000000010000000-0x00000000101B6000-memory.dmp

              Filesize

              1.7MB

            • memory/1632-30-0x0000000010000000-0x00000000101B6000-memory.dmp

              Filesize

              1.7MB

            • memory/1632-26-0x0000000010000000-0x00000000101B6000-memory.dmp

              Filesize

              1.7MB

            • memory/2656-42-0x0000000010000000-0x00000000101B6000-memory.dmp

              Filesize

              1.7MB

            • memory/2656-44-0x0000000010000000-0x00000000101B6000-memory.dmp

              Filesize

              1.7MB

            • memory/2656-47-0x0000000010000000-0x00000000101B6000-memory.dmp

              Filesize

              1.7MB