Analysis

  • max time kernel
    147s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/05/2024, 01:43

General

  • Target
    7b46c5c2165c4b8c43c36806438ac944_JaffaCakes118.exe
  • Size 6.8MB
  • Sample240528-b5cjkabc72
  • SHA256 35973c5136f494996d639ab753dbbb89759fe89b73fac13505d5821587c8254c
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10

Malware Config

Signatures

  • xmrig

    XMRig is a high performance, open source, cross platform CPU/GPU miner.

  • XMRig Miner payload 26 IoCs
  • Sets file to hidden 1 TTPs 10 IoCs

    Modifies file attributes to stop it showing in Explorer etc.

  • Checks computer location settings 2 TTPs 5 IoCs

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

  • Cryptocurrency Miner

    Makes network request to known mining pool URL.

  • Drops startup file 1 IoCs
  • Executes dropped EXE 19 IoCs
  • UPX packed file 41 IoCs

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

  • Drops file in System32 directory 39 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • Views/modifies file attributes 1 TTPs 10 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7b46c5c2165c4b8c43c36806438ac944_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\7b46c5c2165c4b8c43c36806438ac944_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Drops startup file
    • Drops file in System32 directory
    • Suspicious use of WriteProcessMemory
    PID:60
    • C:\Windows\SysWOW64\EsetGui.exe
      "C:\Windows\System32\EsetGui.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:4940
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Windows\System32\System32.bat" "
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3536
        • C:\Windows\SysWOW64\attrib.exe
          ATTRIB +R +S +H System32.exe
          4⤵
          • Sets file to hidden
          • Drops file in System32 directory
          • Views/modifies file attributes
          PID:636
        • C:\Windows\SysWOW64\attrib.exe
          ATTRIB +R +S +H NVDisplay.exe
          4⤵
          • Sets file to hidden
          • Drops file in System32 directory
          • Views/modifies file attributes
          PID:4400
        • C:\Windows\SysWOW64\attrib.exe
          ATTRIB +R +S +H NiceSrv.exe
          4⤵
          • Sets file to hidden
          • Drops file in System32 directory
          • Views/modifies file attributes
          PID:5056
        • C:\Windows\SysWOW64\attrib.exe
          ATTRIB +R +S +H config.json
          4⤵
          • Sets file to hidden
          • Drops file in System32 directory
          • Views/modifies file attributes
          PID:2396
        • C:\Windows\SysWOW64\attrib.exe
          ATTRIB +R +S +H bmc.json
          4⤵
          • Sets file to hidden
          • Drops file in System32 directory
          • Views/modifies file attributes
          PID:4140
        • C:\Windows\SysWOW64\attrib.exe
          ATTRIB +R +S +H System32.bat
          4⤵
          • Sets file to hidden
          • Drops file in System32 directory
          • Views/modifies file attributes
          PID:4828
        • C:\Windows\SysWOW64\attrib.exe
          ATTRIB +R +S +H winclip.exe
          4⤵
          • Sets file to hidden
          • Drops file in System32 directory
          • Views/modifies file attributes
          PID:5108
        • C:\Windows\SysWOW64\attrib.exe
          ATTRIB +R +S +H update.exe
          4⤵
          • Sets file to hidden
          • Drops file in System32 directory
          • Views/modifies file attributes
          PID:776
        • C:\Windows\SysWOW64\attrib.exe
          ATTRIB +R +S +H winscreen.exe
          4⤵
          • Sets file to hidden
          • Drops file in System32 directory
          • Views/modifies file attributes
          PID:5112
        • C:\Windows\SysWOW64\attrib.exe
          ATTRIB +R +S +H EsetGui.exe
          4⤵
          • Sets file to hidden
          • Drops file in System32 directory
          • Views/modifies file attributes
          PID:3208
        • C:\Windows\SysWOW64\winclip.exe
          winclip.exe
          4⤵
          • Checks computer location settings
          • Executes dropped EXE
          • Drops file in System32 directory
          • Modifies registry class
          • Suspicious use of WriteProcessMemory
          PID:5092
          • C:\Windows\SysWOW64\System32.exe
            "C:\Windows\System32\System32.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of AdjustPrivilegeToken
            PID:4052
        • C:\Windows\SysWOW64\update.exe
          update.exe
          4⤵
          • Checks computer location settings
          • Executes dropped EXE
          • Drops file in System32 directory
          • Modifies registry class
          • Suspicious use of WriteProcessMemory
          PID:4864
          • C:\Windows\SysWOW64\NVDisplay.exe
            "C:\Windows\System32\NVDisplay.exe"
            5⤵
            • Executes dropped EXE
            PID:2764
          • C:\Windows\SysWOW64\NVDisplay.exe
            "C:\Windows\System32\NVDisplay.exe"
            5⤵
            • Executes dropped EXE
            PID:4048
          • C:\Windows\SysWOW64\NVDisplay.exe
            "C:\Windows\System32\NVDisplay.exe"
            5⤵
            • Executes dropped EXE
            PID:3060
          • C:\Windows\SysWOW64\NVDisplay.exe
            "C:\Windows\System32\NVDisplay.exe"
            5⤵
            • Executes dropped EXE
            PID:3564
          • C:\Windows\SysWOW64\NVDisplay.exe
            "C:\Windows\System32\NVDisplay.exe"
            5⤵
            • Executes dropped EXE
            PID:4336
          • C:\Windows\SysWOW64\NVDisplay.exe
            "C:\Windows\System32\NVDisplay.exe"
            5⤵
            • Executes dropped EXE
            PID:3476
          • C:\Windows\SysWOW64\NVDisplay.exe
            "C:\Windows\System32\NVDisplay.exe"
            5⤵
            • Executes dropped EXE
            PID:4604
        • C:\Windows\SysWOW64\winscreen.exe
          winscreen.exe
          4⤵
          • Checks computer location settings
          • Executes dropped EXE
          • Drops file in System32 directory
          • Modifies registry class
          • Suspicious use of WriteProcessMemory
          PID:3668
          • C:\Windows\SysWOW64\NiceSrv.exe
            "C:\Windows\System32\NiceSrv.exe"
            5⤵
            • Executes dropped EXE
            PID:412
          • C:\Windows\SysWOW64\NiceSrv.exe
            "C:\Windows\System32\NiceSrv.exe"
            5⤵
            • Executes dropped EXE
            PID:2744
          • C:\Windows\SysWOW64\NiceSrv.exe
            "C:\Windows\System32\NiceSrv.exe"
            5⤵
            • Executes dropped EXE
            PID:384
          • C:\Windows\SysWOW64\NiceSrv.exe
            "C:\Windows\System32\NiceSrv.exe"
            5⤵
            • Executes dropped EXE
            PID:1040
          • C:\Windows\SysWOW64\NiceSrv.exe
            "C:\Windows\System32\NiceSrv.exe"
            5⤵
            • Executes dropped EXE
            PID:1880
          • C:\Windows\SysWOW64\NiceSrv.exe
            "C:\Windows\System32\NiceSrv.exe"
            5⤵
            • Executes dropped EXE
            PID:3776
          • C:\Windows\SysWOW64\NiceSrv.exe
            "C:\Windows\System32\NiceSrv.exe"
            5⤵
            • Executes dropped EXE
            PID:676

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        EsetGui.exe

        • Path C:\Windows\SysWOW64\EsetGui.exe
        • Size 80KB
        • SHA256 e63ef427cde4a8c2f9740b800989a1dab8c970d74083cb4b85c4c71d760d0d95
        • MD5 SHA1 SHA512 SSDEEP

        NVDisplay.exe

        • Path C:\Windows\SysWOW64\NVDisplay.exe
        • Size 2.8MB
        • SHA256 8011e1cf77eef8d5b412d43ab329f784cb171b08b5de32e1fc230f5ed9522c44
        • MD5 SHA1 SHA512 SSDEEP

        NiceSrv.exe

        • Path C:\Windows\SysWOW64\NiceSrv.exe
        • Size 3.5MB
        • SHA256 3a2971a268c241012ca11c60be59f101b9476284d1662c6a568164ae9541df69
        • MD5 SHA1 SHA512 SSDEEP

        System32.bat

        • Path C:\Windows\SysWOW64\System32.bat
        • Size 3KB
        • SHA256 ba8ec75a495baf063814a4d6658e434307dd5c1dda6daa61da6f21bd3df4686d
        • MD5 SHA1 SHA512

        System32.exe

        • Path C:\Windows\SysWOW64\System32.exe
        • Size 367KB
        • SHA256 5c26e2e9a0dd4c85ea8f23a1872d98e2bec8506e3c7de57445fe8d22733f595d
        • MD5 SHA1 SHA512 SSDEEP

        bmc.json

        • Path C:\Windows\SysWOW64\bmc.json
        • Size 198B
        • SHA256 90a5eda340703c58ad828354ba982eae5f8c471053fc2e7d37c5f01337090109
        • MD5 SHA1 SHA512

        config.json

        • Path C:\Windows\SysWOW64\config.json
        • Size 737B
        • SHA256 c2c877c32971d2dd16abe32ec899fa5729068ffa6428aa102b7ead4d5a8f69d2
        • MD5 SHA1 SHA512

        update.exe

        • Path C:\Windows\SysWOW64\update.exe
        • Size 36KB
        • SHA256 e6e64d0f66d772fd17f36361f4437bafb9ee9f219822c65b2846032616c4229c
        • MD5 SHA1 SHA512 SSDEEP

        winclip.exe

        • Path C:\Windows\SysWOW64\winclip.exe
        • Size 36KB
        • SHA256 f6b0647c85541c257fc61568c7b0053cf05852b824c9c5897e084fc91d955b10
        • MD5 SHA1 SHA512 SSDEEP

        winscreen.exe

        • Path C:\Windows\SysWOW64\winscreen.exe
        • Size 36KB
        • SHA256 89dff07058f65ce58ae152030f91606a4cab541476d6f40d7550d25ac4024670
        • MD5 SHA1 SHA512 SSDEEP

        memory/384-88-0x00007FF7ACF00000-0x00007FF7AD74B000-memory.dmp

        memory/412-58-0x00007FF7ACF00000-0x00007FF7AD74B000-memory.dmp

        memory/412-59-0x00007FF7ACF00000-0x00007FF7AD74B000-memory.dmp

        memory/1040-102-0x00007FF7ACF00000-0x00007FF7AD74B000-memory.dmp

        memory/1880-115-0x00007FF7ACF00000-0x00007FF7AD74B000-memory.dmp

        memory/2744-74-0x00007FF7ACF00000-0x00007FF7AD74B000-memory.dmp

        memory/2764-60-0x00007FF7E4890000-0x00007FF7E5169000-memory.dmp

        memory/2764-56-0x00007FF7E4890000-0x00007FF7E5169000-memory.dmp

        memory/3060-85-0x00007FF7E4890000-0x00007FF7E5169000-memory.dmp

        memory/3476-126-0x00007FF7E4890000-0x00007FF7E5169000-memory.dmp

        memory/3564-99-0x00007FF7E4890000-0x00007FF7E5169000-memory.dmp

        memory/3668-50-0x0000000000400000-0x0000000000421000-memory.dmp

        memory/3668-44-0x0000000000400000-0x0000000000421000-memory.dmp

        memory/3776-128-0x00007FF7ACF00000-0x00007FF7AD74B000-memory.dmp

        memory/4048-72-0x00007FF7E4890000-0x00007FF7E5169000-memory.dmp

        memory/4052-93-0x0000000000400000-0x0000000000507000-memory.dmp

        memory/4052-47-0x0000000000400000-0x0000000000507000-memory.dmp

        memory/4052-75-0x0000000000400000-0x0000000000507000-memory.dmp

        memory/4052-79-0x0000000000400000-0x0000000000507000-memory.dmp

        memory/4052-62-0x0000000000400000-0x0000000000507000-memory.dmp

        memory/4052-61-0x0000000000400000-0x0000000000507000-memory.dmp

        memory/4052-89-0x0000000000400000-0x0000000000507000-memory.dmp

        memory/4052-51-0x0000000000400000-0x0000000000507000-memory.dmp

        memory/4052-133-0x0000000000400000-0x0000000000507000-memory.dmp

        memory/4052-129-0x0000000000400000-0x0000000000507000-memory.dmp

        memory/4052-103-0x0000000000400000-0x0000000000507000-memory.dmp

        memory/4052-107-0x0000000000400000-0x0000000000507000-memory.dmp

        memory/4052-120-0x0000000000400000-0x0000000000507000-memory.dmp

        memory/4052-66-0x0000000000400000-0x0000000000507000-memory.dmp

        memory/4052-116-0x0000000000400000-0x0000000000507000-memory.dmp

        memory/4336-112-0x00007FF7E4890000-0x00007FF7E5169000-memory.dmp

        memory/4864-42-0x0000000000400000-0x0000000000421000-memory.dmp

        memory/4864-49-0x0000000000400000-0x0000000000421000-memory.dmp

        memory/5092-40-0x0000000000400000-0x0000000000421000-memory.dmp

        memory/5092-48-0x0000000000400000-0x0000000000421000-memory.dmp