Analysis

  • max time kernel
    95s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/10/2024, 20:00

General

  • Target
    14bdf6fc0169d6126bde9ff2c980b04e_JaffaCakes118.dll
  • Size 177KB
  • Sample241004-yrfqdsxhph
  • SHA256 75cd95e7377c82f350101c702e44733d59a02bb56594fe7ede26990b33948314
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Ramnit

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

  • Executes dropped EXE 2 IoCs
  • Drops file in System32 directory 1 IoCs
  • UPX packed file 11 IoCs

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

  • Drops file in Program Files directory 3 IoCs
  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies Internet Explorer settings 1 TTPs 46 IoCs
  • Suspicious behavior: EnumeratesProcesses 16 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 10 IoCs
  • Suspicious use of UnmapMainImage 2 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\14bdf6fc0169d6126bde9ff2c980b04e_JaffaCakes118.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4932
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\14bdf6fc0169d6126bde9ff2c980b04e_JaffaCakes118.dll,#1
      2⤵
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2988
      • C:\Windows\SysWOW64\rundll32mgr.exe
        C:\Windows\SysWOW64\rundll32mgr.exe
        3⤵
        • Executes dropped EXE
        • Drops file in Program Files directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of UnmapMainImage
        • Suspicious use of WriteProcessMemory
        PID:3520
        • C:\Program Files (x86)\Microsoft\WaterMark.exe
          "C:\Program Files (x86)\Microsoft\WaterMark.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of UnmapMainImage
          • Suspicious use of WriteProcessMemory
          PID:4948
          • C:\Windows\SysWOW64\svchost.exe
            C:\Windows\system32\svchost.exe
            5⤵
              PID:4120
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 4120 -s 204
                6⤵
                • Program crash
                PID:2084
            • C:\Program Files\Internet Explorer\iexplore.exe
              "C:\Program Files\Internet Explorer\iexplore.exe"
              5⤵
              • Modifies Internet Explorer settings
              • Suspicious use of FindShellTrayWindow
              • Suspicious use of SetWindowsHookEx
              • Suspicious use of WriteProcessMemory
              PID:2660
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2660 CREDAT:17410 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:3264
            • C:\Program Files\Internet Explorer\iexplore.exe
              "C:\Program Files\Internet Explorer\iexplore.exe"
              5⤵
              • Modifies Internet Explorer settings
              • Suspicious use of FindShellTrayWindow
              • Suspicious use of SetWindowsHookEx
              • Suspicious use of WriteProcessMemory
              PID:1920
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1920 CREDAT:17410 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:1680
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4120 -ip 4120
      1⤵
        PID:1472

      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 1ae4c8aa37bf433bc5b3b45e017c95bf843c7dbbe348c78c7ab6f3cad0fda4b8
            • MD5 SHA1 SHA512

            7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

            • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
            • Size 404B
            • SHA256 c0105792540bec306f2e309ce610f142ba62cd0c72fabbda89e4a200740572bd
            • MD5 SHA1 SHA512

            7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

            • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
            • Size 404B
            • SHA256 7b66334308670c85b5fe2e982b7e2f4fdaf541a4b2e79539212ef2c32aab0887
            • MD5 SHA1 SHA512

            RecoveryStore.{63B2C757-828B-11EF-939B-562BAB028465}.dat

            • Path C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{63B2C757-828B-11EF-939B-562BAB028465}.dat
            • Size 4KB
            • SHA256 bf526dd82dd9adc5ed8aae169f99689a7c61c7f8ad02b0505a468374020f4b43
            • MD5 SHA1 SHA512 SSDEEP

            RecoveryStore.{63B78BFA-828B-11EF-939B-562BAB028465}.dat

            • Path C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{63B78BFA-828B-11EF-939B-562BAB028465}.dat
            • Size 5KB
            • SHA256 ec3f2e49b6f74d881de0290eb1bd18358acd37e1d8970c00e78b7bbe0cf24fbe
            • MD5 SHA1 SHA512 SSDEEP

            ver394C.tmp

            • Path C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\ver394C.tmp
            • Size 15KB
            • SHA256 557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1
            • MD5 SHA1 SHA512 SSDEEP

            suggestions[1].en-US

            • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\T1CTRFUW\suggestions[1].en-US
            • Size 17KB
            • SHA256 c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
            • MD5 SHA1 SHA512 SSDEEP

            rundll32mgr.exe

            • Path C:\Windows\SysWOW64\rundll32mgr.exe
            • Size 60KB
            • SHA256 ede7603855cb37082c241c720a6650988c684eb3bcb263e5dd7b457458940fed
            • MD5 SHA1 SHA512 SSDEEP

            memory/2988-1-0x000000004C9E0000-0x000000004CA14000-memory.dmp

            memory/3520-12-0x0000000000400000-0x0000000000421000-memory.dmp

            memory/3520-20-0x0000000000401000-0x0000000000404000-memory.dmp

            memory/3520-15-0x0000000000400000-0x0000000000421000-memory.dmp

            memory/3520-14-0x0000000000400000-0x0000000000421000-memory.dmp

            memory/3520-11-0x00000000001C0000-0x00000000001C1000-memory.dmp

            memory/3520-10-0x0000000000400000-0x0000000000421000-memory.dmp

            memory/3520-8-0x0000000000400000-0x0000000000421000-memory.dmp

            memory/3520-7-0x0000000000400000-0x0000000000421000-memory.dmp

            memory/3520-6-0x0000000000400000-0x0000000000421000-memory.dmp

            memory/3520-5-0x0000000000401000-0x0000000000404000-memory.dmp

            memory/4120-34-0x0000000000420000-0x0000000000421000-memory.dmp

            memory/4120-35-0x0000000000400000-0x0000000000401000-memory.dmp

            memory/4948-22-0x0000000000400000-0x0000000000421000-memory.dmp

            memory/4948-39-0x0000000000400000-0x0000000000421000-memory.dmp

            memory/4948-38-0x0000000000070000-0x0000000000071000-memory.dmp

            memory/4948-42-0x0000000000400000-0x0000000000421000-memory.dmp

            memory/4948-37-0x00000000777C2000-0x00000000777C3000-memory.dmp

            memory/4948-36-0x0000000000400000-0x0000000000421000-memory.dmp

            memory/4948-29-0x0000000000400000-0x0000000000421000-memory.dmp

            memory/4948-31-0x0000000000060000-0x0000000000061000-memory.dmp

            memory/4948-32-0x00000000777C2000-0x00000000777C3000-memory.dmp