Analysis

  • max time kernel
    142s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20/06/2024, 05:40

General

  • Target
    03502741723690ab02f84fc35802d80b_JaffaCakes118.exe
  • Size 104KB
  • Sample240620-gc411awfjp
  • SHA256 346c3500bce7c7ed4c1445898a7cc4ed2bf9087bbcd303b512ca2dcbb7eda807
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Ramnit

    Ramnit is a versatile family that holds viruses, worms, and Trojans.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 2 IoCs
  • Modifies Internet Explorer settings 1 TTPs 36 IoCs
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 10 IoCs
  • Suspicious use of WriteProcessMemory 37 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\03502741723690ab02f84fc35802d80b_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\03502741723690ab02f84fc35802d80b_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4656
    • C:\Windows\SysWOW64\svchost.exe
      C:\Windows\system32\svchost.exe
      2⤵
        PID:1588
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1588 -s 204
          3⤵
          • Program crash
          PID:3732
      • C:\Program Files (x86)\Internet Explorer\iexplore.exe
        "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:3216
        • C:\Program Files\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files\Internet Explorer\IEXPLORE.EXE"
          3⤵
          • Modifies Internet Explorer settings
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:1752
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1752 CREDAT:17410 /prefetch:2
            4⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:1252
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1752 CREDAT:82948 /prefetch:2
            4⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:3096
      • C:\Windows\SysWOW64\svchost.exe
        C:\Windows\system32\svchost.exe
        2⤵
          PID:1652
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 1652 -s 204
            3⤵
            • Program crash
            PID:4616
        • C:\Program Files (x86)\Internet Explorer\iexplore.exe
          "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:2868
          • C:\Program Files\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files\Internet Explorer\IEXPLORE.EXE"
            3⤵
            • Modifies Internet Explorer settings
            PID:2080
        • C:\Users\Admin\AppData\Local\Temp\ntbyrlfiyuhaesxk.exe
          "C:\Users\Admin\AppData\Local\Temp\ntbyrlfiyuhaesxk.exe"
          2⤵
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          PID:4356
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 384 -p 1588 -ip 1588
        1⤵
          PID:2452
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 1652 -ip 1652
          1⤵
            PID:1636
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4120 --field-trial-handle=2280,i,4114443225282860369,4764091921472631035,262144 --variations-seed-version /prefetch:8
            1⤵
              PID:3100

            Network

                  MITRE ATT&CK Enterprise v15

                  Replay Monitor

                  Loading Replay Monitor...

                  Downloads

                  7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

                  • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
                  • Size 471B
                  • SHA256 009768e52ded8da33ac7d96d521e882eef9765278997f2ce47311f637696d9c7
                  • MD5 SHA1 SHA512

                  7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

                  • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
                  • Size 404B
                  • SHA256 bc1b55ad0dab8f66faad7c7fa168ae5efcdc8543c742007610b64ebf7dae48c4
                  • MD5 SHA1 SHA512

                  suggestions[1].en-US

                  • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\O8VM10HV\suggestions[1].en-US
                  • Size 17KB
                  • SHA256 c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
                  • MD5 SHA1 SHA512 SSDEEP

                  ntbyrlfiyuhaesxk.exe

                  • Path C:\Users\Admin\AppData\Local\Temp\ntbyrlfiyuhaesxk.exe
                  • Size 104KB
                  • SHA256 346c3500bce7c7ed4c1445898a7cc4ed2bf9087bbcd303b512ca2dcbb7eda807
                  • MD5 SHA1 SHA512 SSDEEP

                  memory/1588-8-0x0000000000D30000-0x0000000000D31000-memory.dmp

                  memory/1588-9-0x0000000000D10000-0x0000000000D11000-memory.dmp

                  memory/4356-34-0x0000000000400000-0x000000000043A060-memory.dmp

                  memory/4356-35-0x0000000000400000-0x000000000043B000-memory.dmp

                  memory/4356-31-0x0000000000400000-0x000000000043A060-memory.dmp

                  memory/4656-16-0x00000000775C2000-0x00000000775C3000-memory.dmp

                  memory/4656-0-0x0000000000400000-0x000000000043A060-memory.dmp

                  memory/4656-17-0x0000000000400000-0x000000000043A060-memory.dmp

                  memory/4656-19-0x00000000775C2000-0x00000000775C3000-memory.dmp

                  memory/4656-11-0x0000000000400000-0x000000000043B000-memory.dmp

                  memory/4656-29-0x0000000000400000-0x000000000043B000-memory.dmp

                  memory/4656-28-0x0000000000400000-0x000000000043A060-memory.dmp

                  memory/4656-10-0x0000000000400000-0x000000000043A060-memory.dmp

                  memory/4656-6-0x0000000000400000-0x000000000043A060-memory.dmp

                  memory/4656-4-0x00000000007F0000-0x00000000007F1000-memory.dmp

                  memory/4656-5-0x00000000021B0000-0x00000000021B1000-memory.dmp

                  memory/4656-2-0x0000000000400000-0x000000000043A060-memory.dmp

                  memory/4656-1-0x0000000000400000-0x000000000043B000-memory.dmp