Analysis

  • max time kernel
    125s
  • max time network
    129s
  • 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, 17:24

General

  • Target

    0fd6a8d4cb920ac3d9b04d091d019a67_JaffaCakes118.dll

  • Size

    171KB

  • MD5

    0fd6a8d4cb920ac3d9b04d091d019a67

  • SHA1

    4bbe7eff462175bfebec499472c5661f6ab5be2f

  • SHA256

    f1a2cb1cdc24f66c9331d273829248a20d6d25e4302618e7d28acc90e9d8d294

  • SHA512

    7d77674b357b0ef49b66e2fa23e1e6f23f1c0fbaa3cda7249824c34192da9d97f69f093a324de17e27d9e1168f26cad2564957ebbeeba133142c5651ab8e0ee3

  • SSDEEP

    3072:0zNCVUIFQ3FFg14TFeKzqVuOofufz6lX46Ok8gWNh93mfH7isALtGWT8BD:fFQ3FFUk5z1O+X46OkfWsHlAL4tBD

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 2 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.

  • Modifies registry class 64 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Windows\system32\regsvr32.exe
    regsvr32 /s C:\Users\Admin\AppData\Local\Temp\0fd6a8d4cb920ac3d9b04d091d019a67_JaffaCakes118.dll
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1808
    • C:\Windows\SysWOW64\regsvr32.exe
      /s C:\Users\Admin\AppData\Local\Temp\0fd6a8d4cb920ac3d9b04d091d019a67_JaffaCakes118.dll
      2⤵
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:3940
      • C:\Windows\SysWOW64\regsvr32mgr.exe
        C:\Windows\SysWOW64\regsvr32mgr.exe
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:852
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 852 -s 468
          4⤵
          • Program crash
          PID:2464
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 852 -ip 852
    1⤵
      PID:3040
    • 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=4148,i,3387628439405076340,17957358341235678872,262144 --variations-seed-version --mojo-platform-channel-handle=4180 /prefetch:8
      1⤵
        PID:5072

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            • C:\Users\Admin\AppData\Local\Temp\~TM6EC2.tmp

              Filesize

              1.6MB

              MD5

              4f3387277ccbd6d1f21ac5c07fe4ca68

              SHA1

              e16506f662dc92023bf82def1d621497c8ab5890

              SHA256

              767a3fc4a7a6818cdc3f0b99aaa95db694f6bcde719d2057a88b3d4df3d74fac

              SHA512

              9da199ac69e3c0d4e0c6307e0ab8178f12cc25cb2f14c3511f6b64e6e60a925c860f3263cb38353a97b55a71ef4d27f8cb7fa3cfc08e7c1a349fd8d209dfa219

            • C:\Windows\SysWOW64\regsvr32mgr.exe

              Filesize

              144KB

              MD5

              609c9eadac4c1cc48b5f89be6c36e276

              SHA1

              f047b565fdb73d5b75ffaed7b2faa335e82b3514

              SHA256

              e982967b3a8613149cd29d659a4b4aa6241ef8e4f124458785220e76e8b18325

              SHA512

              246dab455d7b7661126e79bb9b1b2aee2fee26790b8fde0779d529cfceb295b9df2fb5aca2da1ab3d52f22b4157a46ea8b164e7aa02e842aca2cd27076d85fb5

            • memory/852-6-0x0000000000400000-0x0000000000451000-memory.dmp

              Filesize

              324KB

            • memory/852-5-0x0000000000400000-0x0000000000451000-memory.dmp

              Filesize

              324KB

            • memory/852-10-0x0000000000400000-0x0000000000451000-memory.dmp

              Filesize

              324KB

            • memory/3940-1-0x0000000010000000-0x0000000010030000-memory.dmp

              Filesize

              192KB