Analysis

  • max time kernel
    139s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/06/2024, 22:03

General

  • Target
    0409e628713869dc9d7d5524fb183c54_JaffaCakes118.exe
  • Size 176KB
  • Sample240622-1yessazgrp
  • SHA256 84fb84d1a85be598c805acdde199f73ebe2ee8bfa9c05ac877a33d157e242e1d
  • 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 38 IoCs
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 12 IoCs
  • Suspicious use of WriteProcessMemory 37 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0409e628713869dc9d7d5524fb183c54_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\0409e628713869dc9d7d5524fb183c54_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3808
    • C:\Windows\SysWOW64\svchost.exe
      C:\Windows\system32\svchost.exe
      2⤵
        PID:4188
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4188 -s 204
          3⤵
          • Program crash
          PID:2356
      • C:\Program Files (x86)\Internet Explorer\iexplore.exe
        "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:3356
        • 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:1776
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1776 CREDAT:17410 /prefetch:2
            4⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:3608
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1776 CREDAT:17416 /prefetch:2
            4⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:2092
      • C:\Windows\SysWOW64\svchost.exe
        C:\Windows\system32\svchost.exe
        2⤵
          PID:992
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 992 -s 204
            3⤵
            • Program crash
            PID:4444
        • C:\Program Files (x86)\Internet Explorer\iexplore.exe
          "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1468
          • C:\Program Files\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files\Internet Explorer\IEXPLORE.EXE"
            3⤵
            • Modifies Internet Explorer settings
            PID:1452
        • C:\Users\Admin\AppData\Local\Temp\xicwlgpyyemoloxe.exe
          "C:\Users\Admin\AppData\Local\Temp\xicwlgpyyemoloxe.exe"
          2⤵
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          PID:4296
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 4188 -ip 4188
        1⤵
          PID:3252
        • 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 --field-trial-handle=3708,i,10925946972013221578,8820669985803190952,262144 --variations-seed-version --mojo-platform-channel-handle=4312 /prefetch:8
          1⤵
            PID:4828
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 992 -ip 992
            1⤵
              PID:5048

            Network

                  MITRE ATT&CK Enterprise v15

                  Replay Monitor

                  Loading Replay Monitor...

                  Downloads

                  ver8A88.tmp

                  • Path C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\ver8A88.tmp
                  • Size 15KB
                  • SHA256 557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1
                  • MD5 SHA1 SHA512 SSDEEP

                  suggestions[1].en-US

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

                  xicwlgpyyemoloxe.exe

                  • Path C:\Users\Admin\AppData\Local\Temp\xicwlgpyyemoloxe.exe
                  • Size 176KB
                  • SHA256 84fb84d1a85be598c805acdde199f73ebe2ee8bfa9c05ac877a33d157e242e1d
                  • MD5 SHA1 SHA512 SSDEEP

                  memory/3808-0-0x0000000000400000-0x000000000043A20C-memory.dmp

                  memory/3808-18-0x0000000000400000-0x000000000043A20C-memory.dmp

                  memory/3808-6-0x0000000000400000-0x000000000043A20C-memory.dmp

                  memory/3808-4-0x0000000000570000-0x0000000000571000-memory.dmp

                  memory/3808-36-0x0000000000400000-0x000000000043B000-memory.dmp

                  memory/3808-10-0x0000000000400000-0x000000000043A20C-memory.dmp

                  memory/3808-11-0x0000000000400000-0x000000000043B000-memory.dmp

                  memory/3808-15-0x0000000000400000-0x000000000043A20C-memory.dmp

                  memory/3808-16-0x00000000773F2000-0x00000000773F3000-memory.dmp

                  memory/3808-3-0x0000000000560000-0x0000000000561000-memory.dmp

                  memory/3808-19-0x00000000773F2000-0x00000000773F3000-memory.dmp

                  memory/3808-5-0x0000000000400000-0x000000000043A20C-memory.dmp

                  memory/3808-1-0x0000000000400000-0x000000000043B000-memory.dmp

                  memory/4188-8-0x0000000000B70000-0x0000000000B71000-memory.dmp

                  memory/4188-9-0x0000000000B50000-0x0000000000B51000-memory.dmp

                  memory/4296-39-0x0000000000400000-0x000000000043A20C-memory.dmp

                  memory/4296-38-0x0000000000400000-0x000000000043A20C-memory.dmp

                  memory/4296-37-0x0000000000400000-0x000000000043B000-memory.dmp

                  memory/4296-42-0x0000000000400000-0x000000000043A20C-memory.dmp

                  memory/4296-43-0x0000000000400000-0x000000000043B000-memory.dmp