Analysis

  • max time kernel
    150s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/07/2024, 15:43

General

  • Target
    5c94d437a54b1ae038201e0ef3af5dd2_JaffaCakes118.exe
  • Size 264KB
  • Sample240719-s5zsjaybml
  • SHA256 c9af01171d3c5c41221b49642549843a106fa90c56ff75e56b204ff139a1b410
  • 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.

  • Deletes itself 1 IoCs
  • Executes dropped EXE 6 IoCs
  • UPX packed file 20 IoCs

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

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Drops file in Program Files directory 5 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 63 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 34 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of SetWindowsHookEx 20 IoCs
  • Suspicious use of UnmapMainImage 4 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3464
      • C:\Users\Admin\AppData\Local\Temp\5c94d437a54b1ae038201e0ef3af5dd2_JaffaCakes118.exe
        "C:\Users\Admin\AppData\Local\Temp\5c94d437a54b1ae038201e0ef3af5dd2_JaffaCakes118.exe"
        2⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1248
        • C:\Users\Admin\AppData\Local\Temp\5c94d437a54b1ae038201e0ef3af5dd2_JaffaCakes118mgr.exe
          C:\Users\Admin\AppData\Local\Temp\5c94d437a54b1ae038201e0ef3af5dd2_JaffaCakes118mgr.exe
          3⤵
          • Executes dropped EXE
          • Drops file in Program Files directory
          • Suspicious use of UnmapMainImage
          • Suspicious use of WriteProcessMemory
          PID:4868
          • C:\Program Files (x86)\Microsoft\WaterMark.exe
            "C:\Program Files (x86)\Microsoft\WaterMark.exe"
            4⤵
            • Executes dropped EXE
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of UnmapMainImage
            • Suspicious use of WriteProcessMemory
            PID:2668
            • C:\Windows\SysWOW64\svchost.exe
              C:\Windows\system32\svchost.exe
              5⤵
                PID:2964
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 2964 -s 208
                  6⤵
                  • Program crash
                  PID:2564
              • 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:5100
                • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:5100 CREDAT:17410 /prefetch:2
                  6⤵
                  • Modifies Internet Explorer settings
                  • Suspicious use of SetWindowsHookEx
                  PID:3508
              • 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:2144
                • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2144 CREDAT:17410 /prefetch:2
                  6⤵
                  • Modifies Internet Explorer settings
                  • Suspicious use of SetWindowsHookEx
                  PID:2088
                • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2144 CREDAT:17416 /prefetch:2
                  6⤵
                  • Modifies Internet Explorer settings
                  • Suspicious use of SetWindowsHookEx
                  PID:2716
          • C:\Users\Admin\AppData\Local\Temp\5c94d437a54b1ae038201e0ef3af5dd2_JaffaCakes118.exe
            C:\Users\Admin\AppData\Local\Temp\5c94d437a54b1ae038201e0ef3af5dd2_JaffaCakes118.exe
            3⤵
            • Checks computer location settings
            • Modifies registry class
            • Suspicious use of WriteProcessMemory
            PID:1496
            • C:\Users\Admin\AppData\Roaming\KAmKqK95r.exe
              "C:\Users\Admin\AppData\Roaming\KAmKqK95r.exe"
              4⤵
              • Executes dropped EXE
              • Suspicious use of SetThreadContext
              • Suspicious use of WriteProcessMemory
              PID:2416
              • C:\Users\Admin\AppData\Roaming\KAmKqK95rmgr.exe
                C:\Users\Admin\AppData\Roaming\KAmKqK95rmgr.exe
                5⤵
                • Executes dropped EXE
                • Drops file in Program Files directory
                • Suspicious use of UnmapMainImage
                • Suspicious use of WriteProcessMemory
                PID:4524
                • C:\Program Files (x86)\Microsoft\WaterMark.exe
                  "C:\Program Files (x86)\Microsoft\WaterMark.exe"
                  6⤵
                  • Executes dropped EXE
                  • Suspicious behavior: EnumeratesProcesses
                  • Suspicious use of AdjustPrivilegeToken
                  • Suspicious use of UnmapMainImage
                  • Suspicious use of WriteProcessMemory
                  PID:1600
                  • C:\Windows\SysWOW64\svchost.exe
                    C:\Windows\system32\svchost.exe
                    7⤵
                      PID:5088
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -u -p 5088 -s 208
                        8⤵
                        • Program crash
                        PID:5092
                    • C:\Program Files\Internet Explorer\iexplore.exe
                      "C:\Program Files\Internet Explorer\iexplore.exe"
                      7⤵
                      • Modifies Internet Explorer settings
                      PID:2964
                    • C:\Program Files\Internet Explorer\iexplore.exe
                      "C:\Program Files\Internet Explorer\iexplore.exe"
                      7⤵
                      • Modifies Internet Explorer settings
                      PID:4188
                • C:\Users\Admin\AppData\Roaming\KAmKqK95r.exe
                  C:\Users\Admin\AppData\Roaming\KAmKqK95r.exe
                  5⤵
                  • Deletes itself
                  • Executes dropped EXE
                  • Adds Run key to start application
                  • Suspicious behavior: EnumeratesProcesses
                  • Suspicious use of AdjustPrivilegeToken
                  PID:3040
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 2964 -ip 2964
          1⤵
            PID:2944
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 5088 -ip 5088
            1⤵
              PID:728

            Network

                  MITRE ATT&CK Enterprise v15

                  Replay Monitor

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                  Downloads

                  RecoveryStore.{9EC2FEE1-45E5-11EF-BE68-4A319C7DE533}.dat

                  • Path C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{9EC2FEE1-45E5-11EF-BE68-4A319C7DE533}.dat
                  • Size 3KB
                  • SHA256 d37adacabc792b8e9b2f2c0898ad91fff3595fa851f987ffd74e5ad2aa2b1d40
                  • MD5 SHA1 SHA512

                  RecoveryStore.{9EC560E4-45E5-11EF-BE68-4A319C7DE533}.dat

                  • Path C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{9EC560E4-45E5-11EF-BE68-4A319C7DE533}.dat
                  • Size 5KB
                  • SHA256 de620dd620e629295659ae19a59ab74d535c34954cf6f0c652d1267edde253e9
                  • MD5 SHA1 SHA512 SSDEEP

                  verEA50.tmp

                  • Path C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\verEA50.tmp
                  • Size 15KB
                  • SHA256 557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1
                  • MD5 SHA1 SHA512 SSDEEP

                  suggestions[1].en-US

                  • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\A4F1OTIC\suggestions[1].en-US
                  • Size 17KB
                  • SHA256 c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
                  • MD5 SHA1 SHA512 SSDEEP

                  5c94d437a54b1ae038201e0ef3af5dd2_JaffaCakes118mgr.exe

                  • Path C:\Users\Admin\AppData\Local\Temp\5c94d437a54b1ae038201e0ef3af5dd2_JaffaCakes118mgr.exe
                  • Size 160KB
                  • SHA256 341c2f0ed469de6266175a0d0fe5ce67fb95c826dcdb7268779bde703fc81cfe
                  • MD5 SHA1 SHA512 SSDEEP

                  KAmKqK95r.exe

                  • Path C:\Users\Admin\AppData\Roaming\KAmKqK95r.exe
                  • Size 264KB
                  • SHA256 c9af01171d3c5c41221b49642549843a106fa90c56ff75e56b204ff139a1b410
                  • MD5 SHA1 SHA512 SSDEEP

                  memory/1248-0-0x0000000000400000-0x0000000000443000-memory.dmp

                  memory/1248-40-0x0000000000400000-0x0000000000443000-memory.dmp

                  memory/1496-36-0x0000000000400000-0x0000000000429000-memory.dmp

                  memory/1496-78-0x0000000000400000-0x0000000000429000-memory.dmp

                  memory/1496-41-0x0000000000400000-0x0000000000429000-memory.dmp

                  memory/1496-38-0x0000000000400000-0x0000000000429000-memory.dmp

                  memory/1496-39-0x0000000000400000-0x0000000000429000-memory.dmp

                  memory/1600-103-0x0000000000060000-0x0000000000061000-memory.dmp

                  memory/1600-102-0x0000000000400000-0x0000000000421000-memory.dmp

                  memory/2416-81-0x0000000000400000-0x0000000000443000-memory.dmp

                  memory/2416-108-0x0000000000400000-0x0000000000443000-memory.dmp

                  memory/2668-42-0x0000000000070000-0x0000000000071000-memory.dmp

                  memory/2668-25-0x0000000000400000-0x0000000000421000-memory.dmp

                  memory/2668-30-0x0000000000400000-0x0000000000421000-memory.dmp

                  memory/2668-31-0x00000000777B2000-0x00000000777B3000-memory.dmp

                  memory/2668-29-0x0000000000430000-0x0000000000431000-memory.dmp

                  memory/2668-33-0x0000000020010000-0x0000000020022000-memory.dmp

                  memory/2668-21-0x0000000000400000-0x0000000000438000-memory.dmp

                  memory/2668-43-0x00000000777B2000-0x00000000777B3000-memory.dmp

                  memory/2668-96-0x0000000000400000-0x0000000000421000-memory.dmp

                  memory/2668-113-0x0000000000400000-0x0000000000421000-memory.dmp

                  memory/2964-35-0x0000000000AA0000-0x0000000000AA1000-memory.dmp

                  memory/2964-34-0x0000000000AC0000-0x0000000000AC1000-memory.dmp

                  memory/3040-117-0x0000000000400000-0x0000000000429000-memory.dmp

                  memory/3040-110-0x0000000000400000-0x0000000000429000-memory.dmp

                  memory/4524-93-0x0000000000400000-0x0000000000421000-memory.dmp

                  memory/4868-6-0x0000000000400000-0x0000000000421000-memory.dmp

                  memory/4868-14-0x0000000000BC0000-0x0000000000BC1000-memory.dmp

                  memory/4868-10-0x0000000000400000-0x0000000000421000-memory.dmp

                  memory/4868-13-0x0000000000400000-0x0000000000421000-memory.dmp

                  memory/4868-12-0x0000000000400000-0x0000000000421000-memory.dmp

                  memory/4868-8-0x0000000000400000-0x0000000000421000-memory.dmp

                  memory/4868-7-0x0000000000400000-0x0000000000421000-memory.dmp

                  memory/4868-9-0x0000000000400000-0x0000000000421000-memory.dmp

                  memory/4868-5-0x0000000000400000-0x0000000000438000-memory.dmp