Analysis

  • max time kernel
    147s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240319-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240319-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-04-2024 10:40

General

  • Target

    8a5336e1f45a85b04b3b8930a714a7b0_JaffaCakes118.exe

  • Size

    84KB

  • MD5

    8a5336e1f45a85b04b3b8930a714a7b0

  • SHA1

    2bac2e1ddfebabfe1e8f15301434b47be53063c9

  • SHA256

    a2be24512daa156d5c3cd4726819d6cb085e77a1d8f3a6b2c6bfc26221f8853c

  • SHA512

    5f6a66e86b094b4e136fe195104620c18c406ff5eef7d12d0c1d041145d0b65ab5e76a99406c935f5bc8ca91df0706a777d5d701cbdf6a57369fd88382c7a2f7

  • SSDEEP

    1536:XHJILdpECz3IULFMAAiu6JL6oNsgFAyox0cH:XHJAdpJz3IULY6JL6oNsYu

Malware Config

Extracted

Family

purecrypter

C2

https://store2.gofile.io/download/f9bf4a66-3371-4133-8e18-24107236761e/Ruqkwagyqbeobzsmhd.dll

Signatures

  • PureCrypter

    PureCrypter is a .NET malware loader first seen in early 2021.

  • Program crash 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8a5336e1f45a85b04b3b8930a714a7b0_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\8a5336e1f45a85b04b3b8930a714a7b0_JaffaCakes118.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2284
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2284 -s 1768
      2⤵
      • Program crash
      PID:4992
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 2284 -ip 2284
    1⤵
      PID:3056
    • 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 --no-appcompat-clear --mojo-platform-channel-handle=1684 --field-trial-handle=2284,i,13100272738549420251,6151825632958897606,262144 --variations-seed-version /prefetch:8
      1⤵
        PID:3864

      Network

      MITRE ATT&CK Matrix

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/2284-0-0x0000000074590000-0x0000000074D40000-memory.dmp

        Filesize

        7.7MB

      • memory/2284-1-0x0000000000A60000-0x0000000000A7A000-memory.dmp

        Filesize

        104KB

      • memory/2284-2-0x00000000055E0000-0x00000000055F0000-memory.dmp

        Filesize

        64KB

      • memory/2284-3-0x0000000074590000-0x0000000074D40000-memory.dmp

        Filesize

        7.7MB

      • memory/2284-4-0x00000000055E0000-0x00000000055F0000-memory.dmp

        Filesize

        64KB

      • memory/2284-5-0x0000000074590000-0x0000000074D40000-memory.dmp

        Filesize

        7.7MB