Analysis

  • max time kernel
    151s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    24-05-2024 07:37

General

  • Target

    690da37ad986adfd451b1e1e5b3393b09831eb4335fa6a2d1fbc395fa7ae6c0a.exe

  • Size

    3.7MB

  • MD5

    6768a0acd90a7176e16617c6e28fb1d6

  • SHA1

    4a19c9e30d74abe4a0d1e5b728cc53121a88ed9b

  • SHA256

    690da37ad986adfd451b1e1e5b3393b09831eb4335fa6a2d1fbc395fa7ae6c0a

  • SHA512

    94c9ecbe56fe517be1d5f7165f54706e328f83a7c0255b50b92a79be7153360774a45860d1efdaba0cdb592b18258f8a5c97fd94d1e6a227261c3558e901842c

  • SSDEEP

    49152:PCwsbCANnKXferL7Vwe/Gg0P+WhP9JDmn2v7J3jgI+rTvDzp:aws2ANnKXOaeOgmhVJDmn2d3jTOzp

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
  • Executes dropped EXE 6 IoCs
  • Loads dropped DLL 8 IoCs
  • UPX packed file 9 IoCs

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

  • Drops file in System32 directory 6 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 SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 34 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\690da37ad986adfd451b1e1e5b3393b09831eb4335fa6a2d1fbc395fa7ae6c0a.exe
    "C:\Users\Admin\AppData\Local\Temp\690da37ad986adfd451b1e1e5b3393b09831eb4335fa6a2d1fbc395fa7ae6c0a.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1196
    • 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:1116
    • 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:2652
      • 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:2616
        • C:\Windows\SysWOW64\PING.EXE
          ping -n 2 127.0.0.1
          4⤵
          • Runs ping.exe
          PID:2420
    • C:\Users\Admin\AppData\Local\Temp\HD_690da37ad986adfd451b1e1e5b3393b09831eb4335fa6a2d1fbc395fa7ae6c0a.exe
      C:\Users\Admin\AppData\Local\Temp\HD_690da37ad986adfd451b1e1e5b3393b09831eb4335fa6a2d1fbc395fa7ae6c0a.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      PID:2492
  • C:\Windows\SysWOW64\svchost.exe
    C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
    1⤵
      PID:1904
    • 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:1724
      • C:\Windows\SysWOW64\Remote Data.exe
        "C:\Windows\system32\Remote Data.exe" "c:\windows\system32\259425435.txt",MainThread
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        PID:2304
    • C:\Windows\SysWOW64\TXPlatfor.exe
      C:\Windows\SysWOW64\TXPlatfor.exe -auto
      1⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2484
      • 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:2532

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Persistence

    Boot or Logon Autostart Execution

    2
    T1547

    Registry Run Keys / Startup Folder

    2
    T1547.001

    Privilege Escalation

    Boot or Logon Autostart Execution

    2
    T1547

    Registry Run Keys / Startup Folder

    2
    T1547.001

    Defense Evasion

    Modify Registry

    2
    T1112

    Discovery

    Remote System Discovery

    1
    T1018

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\HD_690da37ad986adfd451b1e1e5b3393b09831eb4335fa6a2d1fbc395fa7ae6c0a.exe
      Filesize

      974KB

      MD5

      acf68f6654c5eccd78ac6ca6801a7935

      SHA1

      c66b495cd6d1672064df7758cde54450c81e9f50

      SHA256

      0d41201afcc8ec47238312d997f9e778e51b5a792ea50b93e83d6c222a1b96cb

      SHA512

      0626a8ce25d6bb03bc24dbc10e34e2e0d5e8f6bce50f025380bf3ced3cd1c56204f4bc1e40322ab6b5d842c4b340182c656be9d124dea223fde188c07b6735fc

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

      377KB

      MD5

      4a36a48e58829c22381572b2040b6fe0

      SHA1

      f09d30e44ff7e3f20a5de307720f3ad148c6143b

      SHA256

      3de6c02f52a661b8f934f59541d0cf297bb489eb2155e346b63c7338e09aeaf8

      SHA512

      5d0ea398792f6b9eb3f188813c50b7f43929183b5733d2b595b2fd1c78722764fd15f62db1086b5c7edfb157661a6dcd544ddd80907ee7699dddbca1ef4022d0

    • C:\Users\Admin\Desktop\SwitchFormat.exe
      Filesize

      3.2MB

      MD5

      e2772926d04261ef279b92cbd61fcd5d

      SHA1

      3365197dd78d217fc7971d6f3e29a9f9bbf795ae

      SHA256

      693bc5d2c8166ae3251e25ed45ca6575ab95bc640cf54eb826f994471bc8c229

      SHA512

      1362983a966fa326201e6112b41a3e4450771c69242234a2898616834ca9ecd7db09b2f1c07434bd7672a5dfb5f031c78d4c488fb4c6be581dfcfe8746e4bef0

    • \Users\Admin\AppData\Local\Temp\R.exe
      Filesize

      941KB

      MD5

      8dc3adf1c490211971c1e2325f1424d2

      SHA1

      4eec4a4e7cb97c5efa6c72e0731cd090c0c4adc5

      SHA256

      bc29f2022ab3b812e50c8681ff196f090c038b5ab51e37daffac4469a8c2eb2c

      SHA512

      ae92ea20b359849dcdba4808119b154e3af5ef3687ee09de1797610fe8c4d3eb9065b068074d35adddb4b225d17c619baff3944cb137ad196bcef7a6507f920d

    • \Windows\SysWOW64\259425435.txt
      Filesize

      899KB

      MD5

      38c8593f0b50dea20a29a48a33635652

      SHA1

      6056212f5fdbd602fdef7c1081a1af5375af5bdd

      SHA256

      768e4d507535f8bdd9bee539bb56629d93a287cb9580c1b4a020493e6c658adf

      SHA512

      9232cfa6cc7627833e524d714ecc0b9093164e6bdd52024012934257412524f7eed94c126986be45e0dac6c481f0fd108bb9edd645d75b94f39823d3e4e0af21

    • \Windows\SysWOW64\Remote Data.exe
      Filesize

      43KB

      MD5

      51138beea3e2c21ec44d0932c71762a8

      SHA1

      8939cf35447b22dd2c6e6f443446acc1bf986d58

      SHA256

      5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

      SHA512

      794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

    • memory/2532-43-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/2532-38-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/2532-37-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/2532-45-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/2532-35-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/2532-53-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/2652-18-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/2652-21-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/2652-20-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB