Analysis

  • max time kernel
    146s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08/03/2024, 00:27

General

  • Target
    ba0d1ded99f58c5acc9ad33dfb44101f.exe
  • Size 96KB
  • Sample240308-arqzcsac87
  • SHA256 78d33303267da6e5d85cadc8af6e2e629c0eadf3cc30952cdb316b8ac1ce2f44
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Ramnit

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

  • Executes dropped EXE 1 IoCs
  • UPX packed file 13 IoCs

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

  • Drops file in Program Files directory 3 IoCs
  • Program crash 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 55 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 22 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ba0d1ded99f58c5acc9ad33dfb44101f.exe
    "C:\Users\Admin\AppData\Local\Temp\ba0d1ded99f58c5acc9ad33dfb44101f.exe"
    1⤵
    • Drops file in Program Files directory
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:3764
    • C:\Program Files (x86)\Microsoft\WaterMark.exe
      "C:\Program Files (x86)\Microsoft\WaterMark.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:116
      • C:\Windows\SysWOW64\svchost.exe
        C:\Windows\system32\svchost.exe
        3⤵
          PID:4956
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 4956 -s 204
            4⤵
            • Program crash
            PID:4040
        • 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:3996
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3996 CREDAT:17410 /prefetch:2
            4⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:1452
        • 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:1708
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1708 CREDAT:17410 /prefetch:2
            4⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:3208
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 4956 -ip 4956
      1⤵
        PID:3780

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            WaterMark.exe

            • Path C:\Program Files (x86)\Microsoft\WaterMark.exe
            • Size 96KB
            • SHA256 78d33303267da6e5d85cadc8af6e2e629c0eadf3cc30952cdb316b8ac1ce2f44
            • MD5 SHA1 SHA512 SSDEEP

            RecoveryStore.{9B36DF39-DCE2-11EE-BC63-7E3D4A1755AD}.dat

            • Path C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{9B36DF39-DCE2-11EE-BC63-7E3D4A1755AD}.dat
            • Size 5KB
            • SHA256 17653f07daa7507309e1d5b626e90f6b8a831baaf9ab5e81e5b1c5afe2fddd04
            • MD5 SHA1 SHA512 SSDEEP

            RecoveryStore.{9B3BA109-DCE2-11EE-BC63-7E3D4A1755AD}.dat

            • Path C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{9B3BA109-DCE2-11EE-BC63-7E3D4A1755AD}.dat
            • Size 4KB
            • SHA256 57ca7c181338f72f8af130e6402bb410625764631652c7d111ee3e13af2dc55d
            • MD5 SHA1 SHA512 SSDEEP

            verFD4C.tmp

            • Path C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\verFD4C.tmp
            • Size 15KB
            • SHA256 557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1
            • MD5 SHA1 SHA512 SSDEEP

            suggestions[1].en-US

            • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\G7TWCMRP\suggestions[1].en-US
            • Size 17KB
            • SHA256 c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
            • MD5 SHA1 SHA512 SSDEEP

            memory/116-31-0x0000000077AE2000-0x0000000077AE3000-memory.dmp

            memory/116-35-0x0000000000400000-0x0000000000433000-memory.dmp

            memory/116-37-0x0000000000400000-0x0000000000421000-memory.dmp

            memory/116-36-0x0000000000400000-0x0000000000421000-memory.dmp

            memory/116-32-0x0000000000070000-0x0000000000071000-memory.dmp

            memory/116-18-0x0000000000400000-0x0000000000433000-memory.dmp

            memory/116-24-0x0000000000400000-0x0000000000421000-memory.dmp

            memory/116-25-0x0000000000400000-0x0000000000421000-memory.dmp

            memory/116-26-0x0000000000060000-0x0000000000061000-memory.dmp

            memory/116-27-0x0000000077AE2000-0x0000000077AE3000-memory.dmp

            memory/3764-7-0x0000000000400000-0x0000000000421000-memory.dmp

            memory/3764-0-0x0000000000400000-0x0000000000433000-memory.dmp

            memory/3764-4-0x0000000000400000-0x0000000000421000-memory.dmp

            memory/3764-6-0x0000000000400000-0x0000000000421000-memory.dmp

            memory/3764-8-0x0000000000400000-0x0000000000421000-memory.dmp

            memory/3764-11-0x0000000000400000-0x0000000000421000-memory.dmp

            memory/3764-9-0x0000000000400000-0x0000000000421000-memory.dmp

            memory/3764-5-0x00000000008F0000-0x00000000008F1000-memory.dmp

            memory/3764-2-0x0000000000400000-0x0000000000421000-memory.dmp

            memory/4956-29-0x00000000007E0000-0x00000000007E1000-memory.dmp

            memory/4956-30-0x00000000007C0000-0x00000000007C1000-memory.dmp