Analysis

  • max time kernel
    152s
  • max time network
    143s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-04-2024 10:04

General

  • Target

    fc821e8529a05ff2346691084581455f_JaffaCakes118.exe

  • Size

    548KB

  • MD5

    fc821e8529a05ff2346691084581455f

  • SHA1

    c8e0f21c2689c42b1f3728775ee86b59f0e8b6c6

  • SHA256

    d3f2e8ce150805553a634591cc88dcf75942c12039de608c4a0bb204a96d1ae6

  • SHA512

    b507e4fe868e68a1982164c64d423da425d050cd66efcf2858ae9648d56971dfbf5fcc9a6a5cbd15d04e82b8dbee4054af9d4edb85bdba12611910108dc13089

  • SSDEEP

    12288:2lvvKF1ViO8IV8xy9x51mPpagIwmf4CkC6yQwAci2AGFV:2AF1Vyxxy9x5O8BjPft

Malware Config

Signatures

  • HawkEye

    HawkEye is a malware kit that has seen continuous development since at least 2013.

  • NirSoft MailPassView 5 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 5 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 9 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Uses the VBS compiler for execution 1 TTPs
  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 29 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fc821e8529a05ff2346691084581455f_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\fc821e8529a05ff2346691084581455f_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3152
    • C:\Users\Admin\AppData\Local\Temp\fc821e8529a05ff2346691084581455f_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\fc821e8529a05ff2346691084581455f_JaffaCakes118.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1232
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
        C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holdermail.txt"
        3⤵
        • Accesses Microsoft Outlook accounts
        PID:1188
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
        C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holdermail.txt"
        3⤵
          PID:3896
        • C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
          dw20.exe -x -s 2116
          3⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:3144
    • 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=4124 --field-trial-handle=2276,i,11674642242468042059,14711253743544118298,262144 --variations-seed-version /prefetch:8
      1⤵
        PID:4888

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\fc821e8529a05ff2346691084581455f_JaffaCakes118.exe.log

        Filesize

        400B

        MD5

        0a9b4592cd49c3c21f6767c2dabda92f

        SHA1

        f534297527ae5ccc0ecb2221ddeb8e58daeb8b74

        SHA256

        c7effe9cb81a70d738dee863991afefab040290d4c4b78b4202383bcb9f88fcd

        SHA512

        6b878df474e5bbfb8e9e265f15a76560c2ef151dcebc6388c82d7f6f86ffaf83f5ade5a09f1842e493cb6c8fd63b0b88d088c728fd725f7139f965a5ee332307

      • C:\Users\Admin\AppData\Local\Temp\holdermail.txt

        Filesize

        3KB

        MD5

        f94dc819ca773f1e3cb27abbc9e7fa27

        SHA1

        9a7700efadc5ea09ab288544ef1e3cd876255086

        SHA256

        a3377ade83786c2bdff5db19ff4dbfd796da4312402b5e77c4c63e38cc6eff92

        SHA512

        72a2c10d7a53a7f9a319dab66d77ed65639e9aa885b551e0055fc7eaf6ef33bbf109205b42ae11555a0f292563914bc6edb63b310c6f9bda9564095f77ab9196

      • memory/1188-18-0x0000000000400000-0x000000000041B000-memory.dmp

        Filesize

        108KB

      • memory/1188-23-0x0000000000400000-0x000000000041B000-memory.dmp

        Filesize

        108KB

      • memory/1188-22-0x0000000000420000-0x00000000004E9000-memory.dmp

        Filesize

        804KB

      • memory/1188-21-0x0000000000400000-0x000000000041B000-memory.dmp

        Filesize

        108KB

      • memory/1188-20-0x0000000000400000-0x000000000041B000-memory.dmp

        Filesize

        108KB

      • memory/1232-24-0x00000000750F0000-0x00000000756A1000-memory.dmp

        Filesize

        5.7MB

      • memory/1232-25-0x00000000014D0000-0x00000000014E0000-memory.dmp

        Filesize

        64KB

      • memory/1232-10-0x00000000750F0000-0x00000000756A1000-memory.dmp

        Filesize

        5.7MB

      • memory/1232-38-0x00000000014D0000-0x00000000014E0000-memory.dmp

        Filesize

        64KB

      • memory/1232-14-0x00000000014D0000-0x00000000014E0000-memory.dmp

        Filesize

        64KB

      • memory/1232-17-0x00000000014D0000-0x00000000014E0000-memory.dmp

        Filesize

        64KB

      • memory/1232-8-0x00000000750F0000-0x00000000756A1000-memory.dmp

        Filesize

        5.7MB

      • memory/1232-29-0x00000000014D0000-0x00000000014E0000-memory.dmp

        Filesize

        64KB

      • memory/1232-4-0x0000000000400000-0x000000000048C000-memory.dmp

        Filesize

        560KB

      • memory/1232-9-0x00000000014D0000-0x00000000014E0000-memory.dmp

        Filesize

        64KB

      • memory/3152-3-0x00000000017F0000-0x0000000001800000-memory.dmp

        Filesize

        64KB

      • memory/3152-0-0x00000000750F0000-0x00000000756A1000-memory.dmp

        Filesize

        5.7MB

      • memory/3152-2-0x00000000017F0000-0x0000000001800000-memory.dmp

        Filesize

        64KB

      • memory/3152-7-0x00000000750F0000-0x00000000756A1000-memory.dmp

        Filesize

        5.7MB

      • memory/3152-1-0x00000000750F0000-0x00000000756A1000-memory.dmp

        Filesize

        5.7MB

      • memory/3152-13-0x00000000750F0000-0x00000000756A1000-memory.dmp

        Filesize

        5.7MB

      • memory/3896-26-0x0000000000400000-0x0000000000458000-memory.dmp

        Filesize

        352KB

      • memory/3896-28-0x0000000000400000-0x0000000000458000-memory.dmp

        Filesize

        352KB

      • memory/3896-30-0x0000000000400000-0x0000000000458000-memory.dmp

        Filesize

        352KB

      • memory/3896-37-0x0000000000400000-0x0000000000458000-memory.dmp

        Filesize

        352KB