Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/10/2024, 08:40

General

  • Target
    16f7fb625f8cff34844e582c6f88c65d_JaffaCakes118.dll
  • Size 436KB
  • Sample241005-kk6rcazejd
  • SHA256 b5a7fdb24db3e74c82a81bec0712800a27b39d536cd87623fe6efb001f4feffa
  • 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 10 IoCs

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

  • Drops file in Program Files directory 3 IoCs
  • Program crash 2 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 51 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\16f7fb625f8cff34844e582c6f88c65d_JaffaCakes118.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4528
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\16f7fb625f8cff34844e582c6f88c65d_JaffaCakes118.dll,#1
      2⤵
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1552
      • 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:224
        • 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:412
          • C:\Windows\SysWOW64\svchost.exe
            C:\Windows\system32\svchost.exe
            5⤵
              PID:2096
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 2096 -s 204
                6⤵
                • Program crash
                PID:4556
            • 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:4944
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4944 CREDAT:17410 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:2436
            • 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:2916
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2916 CREDAT:17410 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:1912
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1552 -s 696
          3⤵
          • Program crash
          PID:2208
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 1552 -ip 1552
      1⤵
        PID:1364
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 2096 -ip 2096
        1⤵
          PID:1700

        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 1ad25ca9276220fad43036ca091782b8f4d243cabe72d152f698eaf71cdd5271
              • MD5 SHA1 SHA512

              7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

              • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
              • Size 404B
              • SHA256 c25ad56b761640711595d2ee29d6c65f3720f1df808d9e037e52b91759597282
              • MD5 SHA1 SHA512

              7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

              • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
              • Size 404B
              • SHA256 c07abb9ac7c9584735b887a41b4eb9840783edfd1d6d0febe7d94849d6cf3f87
              • MD5 SHA1 SHA512

              RecoveryStore.{810E1573-82F5-11EF-BB4F-EEE1DD5A0987}.dat

              • Path C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{810E1573-82F5-11EF-BB4F-EEE1DD5A0987}.dat
              • Size 3KB
              • SHA256 1cb2fdeeab70831b465b747bd33baf7ef8c7dedc5d47e1461e1e4584b8ed89cc
              • MD5 SHA1 SHA512

              RecoveryStore.{811077EC-82F5-11EF-BB4F-EEE1DD5A0987}.dat

              • Path C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{811077EC-82F5-11EF-BB4F-EEE1DD5A0987}.dat
              • Size 5KB
              • SHA256 0e7e95ef0be701d14194b75ba84e10fe1ed5e9b7471faa98fa9979fc19f3dcef
              • MD5 SHA1 SHA512 SSDEEP

              ver4CE3.tmp

              • Path C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\ver4CE3.tmp
              • Size 15KB
              • SHA256 557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1
              • MD5 SHA1 SHA512 SSDEEP

              suggestions[1].en-US

              • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\O8WYVOD7\suggestions[1].en-US
              • Size 17KB
              • SHA256 c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
              • MD5 SHA1 SHA512 SSDEEP

              rundll32mgr.exe

              • Path C:\Windows\SysWOW64\rundll32mgr.exe
              • Size 59KB
              • SHA256 5a5b85c582d5d4b3b912ee6789babebf8ae6d87330d0d33d87274841952899dd
              • MD5 SHA1 SHA512 SSDEEP

              memory/224-9-0x0000000000400000-0x0000000000421000-memory.dmp

              memory/224-15-0x0000000000401000-0x0000000000405000-memory.dmp

              memory/224-6-0x0000000000400000-0x0000000000421000-memory.dmp

              memory/224-5-0x0000000000400000-0x0000000000421000-memory.dmp

              memory/224-4-0x0000000000400000-0x0000000000421000-memory.dmp

              memory/224-10-0x0000000000400000-0x0000000000421000-memory.dmp

              memory/224-13-0x0000000000400000-0x0000000000421000-memory.dmp

              memory/224-17-0x0000000000401000-0x0000000000416000-memory.dmp

              memory/224-16-0x0000000000416000-0x0000000000420000-memory.dmp

              memory/224-7-0x0000000000400000-0x0000000000421000-memory.dmp

              memory/412-40-0x0000000000400000-0x0000000000421000-memory.dmp

              memory/412-36-0x0000000000070000-0x0000000000071000-memory.dmp

              memory/412-35-0x0000000077622000-0x0000000077623000-memory.dmp

              memory/412-26-0x0000000000060000-0x0000000000061000-memory.dmp

              memory/412-39-0x0000000000400000-0x0000000000421000-memory.dmp

              memory/412-29-0x0000000000400000-0x0000000000421000-memory.dmp

              memory/412-30-0x00000000001C0000-0x00000000001C1000-memory.dmp

              memory/412-31-0x0000000077622000-0x0000000077623000-memory.dmp

              memory/1552-34-0x0000000010000000-0x00000000126A5000-memory.dmp

              memory/1552-28-0x0000000010000000-0x00000000126A5000-memory.dmp

              memory/2096-32-0x0000000000EA0000-0x0000000000EA1000-memory.dmp

              memory/2096-33-0x0000000000E80000-0x0000000000E81000-memory.dmp