Malicious PDF — malware analysis report

Static analysis result for SHA-256 33bca78a01ff080c…

MALICIOUS

PDF

34.6 KB Created: 2021-06-29 10:49:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: f355f7ce4782adc3dbd3927a3fa81b1e SHA-1: 70f9b19ff938d1fc53274268816ac599ae1880b1 SHA-256: 33bca78a01ff080cbff58b2738c622141c22139398f4fde0f9c5afc9b5442ea8
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to a known malicious redirector, masquerading as a 'free Robux hack'. The document body and extracted URLs indicate a lure for game-related cheats, likely intended to lead users to a phishing or malware download site. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest a malicious redirection workflow.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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 http://netcdn.co/app/431946152/best-robux-hack-ever-game-hack In PDF document text
    • http://digilibfisip.unla.ac.id/repository/did-roblox-get-hacked_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/pig-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-roblox-accounts-2021-november_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/roblox-assassin-knife-hack_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/roblox-money-cheat-rocitizens_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/hack-speed-vehicle-simulator-roblox_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/cheat-roblox-bs_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/tiktok-fans-for-free_GM835599320.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/confuse-roblox-hack_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/roblox-alone-free_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/changing-your-walkspeed-in-roblox-cheat-engine_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/robux-free-com_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/best-free-roblox-injector_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-ways-to-get-robux_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/how-to-get-free-robux-roblox-2021_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-minecraft-hosting-24-7_GM479516143.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-redeemable-robux-codes_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/more-robux-for-free-no-verification_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f34.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F34 22880 bytes
SHA-256: 3cdd1da90e7f8f6cbec484555779b97adfd995b5d1e7455f2417321a1bbec942
font_01_sfnt_off00006255.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6255 18940 bytes
SHA-256: 3182f10ad97b6b902a677836f98c63c22d17557f0b539e9cb9eb36315b44b180

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