Analysis

  • max time kernel
    126s
  • max time network
    130s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/10/2024, 22:02

General

  • Target

    10ab72dc41b1e25d3481fa976e32646a_JaffaCakes118.dll

  • Size

    272KB

  • MD5

    10ab72dc41b1e25d3481fa976e32646a

  • SHA1

    035ea4614924beb54203b33a140bf5056249e6b2

  • SHA256

    c5a68e2b4c7e9960deae348969f078947dd8f70b2446869446f191c13c9cdf1b

  • SHA512

    fb7bd7d5435ae5e2486ba06ae2969127e91dc3e16e281cb810e175600a45d577bfd83d521ba028538ea4028ca222b0fb5e2ea8d6128871563b4ab6e37f9f97ed

  • SSDEEP

    6144:QKZp3KNjVGvY6Vr9blG+7T6vVifVSRGFyt9JFrWfg:QCxKNjcf91Jut9JFrW4

Malware Config

Signatures

  • Ramnit

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

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Drops file in System32 directory 1 IoCs
  • UPX packed file 1 IoCs

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

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\10ab72dc41b1e25d3481fa976e32646a_JaffaCakes118.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3444
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\10ab72dc41b1e25d3481fa976e32646a_JaffaCakes118.dll,#1
      2⤵
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1472
      • C:\Windows\SysWOW64\rundll32mgr.exe
        C:\Windows\SysWOW64\rundll32mgr.exe
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1228
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1228 -s 10176
          4⤵
          • Program crash
          PID:588
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1228 -ip 1228
    1⤵
      PID:2456
    • 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=3056,i,1828333185976713750,7918646547767660928,262144 --variations-seed-version --mojo-platform-channel-handle=4088 /prefetch:8
      1⤵
        PID:4128

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            • C:\Users\Admin\AppData\Local\Temp\~TM2B80.tmp

              Filesize

              1.6MB

              MD5

              4f3387277ccbd6d1f21ac5c07fe4ca68

              SHA1

              e16506f662dc92023bf82def1d621497c8ab5890

              SHA256

              767a3fc4a7a6818cdc3f0b99aaa95db694f6bcde719d2057a88b3d4df3d74fac

              SHA512

              9da199ac69e3c0d4e0c6307e0ab8178f12cc25cb2f14c3511f6b64e6e60a925c860f3263cb38353a97b55a71ef4d27f8cb7fa3cfc08e7c1a349fd8d209dfa219

            • C:\Windows\SysWOW64\rundll32mgr.exe

              Filesize

              156KB

              MD5

              c8ba737481aa4e52d48b058dfbb961bb

              SHA1

              123f696d27604eed21a1b5d1811a95fc96650db5

              SHA256

              9490d1dbfd40542e0300bac29234fcb46847e0899dfb8b827c849b79c3662c25

              SHA512

              08cb23a1bd63c8600373e8e1377366faae7f78247bd03fcb4bb110291b5e0e6388df8e115d48be23f5ecc813b23a06a6537c5deb3be106504ae9d52d882049f2

            • memory/1228-5-0x00000000021B0000-0x0000000002216000-memory.dmp

              Filesize

              408KB

            • memory/1228-6-0x0000000000400000-0x0000000000466000-memory.dmp

              Filesize

              408KB

            • memory/1228-11-0x00000000021B0000-0x0000000002216000-memory.dmp

              Filesize

              408KB

            • memory/1472-1-0x0000000010000000-0x0000000010046000-memory.dmp

              Filesize

              280KB