Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a01ee8c085f7c80…

MALICIOUS

PDF

44.4 KB Created: 2021-06-11 05:00:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 6ef091f9f3d30457e7e3db85a8ac8cad SHA-1: ec32a80817ba86a9d3af2399ba17f456c16d7c9f SHA-256: 5a01ee8c085f7c802b7792a8443d04bdbac4fa24e463963bd2d97bb1df92126d
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to external websites, with a primary URL identified as a lure for game hacks and free items. The ML classifier strongly flagged this PDF as malicious, and the presence of embedded URLs further supports a malicious intent. While no scripts were explicitly extracted, the document's structure and linked content suggest it is designed to redirect users to potentially harmful sites, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://netcdn.tw/app/431946152/games-that-give-free-items-roblox-game-hack PDF link annotation
    • https://unsla.uns.ac.id:443/pgsd/repository/minecraft-windows-10-free_GM479516143.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/free-robux-no-human-verify_GM431946152.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/earn-free-robux_GM431946152.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/free-robux-app_GM431946152.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/hacks-for-roblox-legit-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/roblox-free-robux-pins_GM431946152.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/free-coin-master-spins-link_GM406889139.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/roblox-unblocked-at-school-hacked_GM431946152.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/coin-master-homepage_GM406889139.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/tiktok-free-liker_GM835599320.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/free-roblox-accounts_GM431946152.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/coin-master-free-spins-hack-apk-download_GM406889139.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/coin-master-hack-lost-world-2021_GM406889139.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/roblox-guest-play-for-free_GM431946152.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/hack-coin-master-android-2021_GM406889139.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/pubg-mobile-74-uc_GM1330123889.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/how-to-get-free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/how-to-hack-into-someones-roblox-account_GM431946152.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/checkmein-free-roblox_GM431946152.pdfIn PDF document text
    • https://unsla.uns.ac.id:443/pgsd/repository/2021-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
    • https://collectrobuxIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00004f7a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4F7A 25040 bytes
SHA-256: 8c6c3ee8cfac04bbe939947766a0052e8ba44371c11e514df356db55af7d3463
font_01_sfnt_off00008930.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8930 18940 bytes
SHA-256: cb121380159f117686b21ab1756dbb14809374a9aaa414c628299e51bc6547be

Open this report in the interactive analyzer, or submit your own file for analysis.