Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d30f73b5ee489aa…

MALICIOUS

PDF

34.2 KB Created: 2021-06-28 10:08:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 7e9a3e9461a98567da3d9267a1c9fa05 SHA-1: a379fe7c5410859916d5a27cacdb586598f2ae05 SHA-256: 2d30f73b5ee489aa4d4277b38d5376f1a8012247166c03ce4a1345d419e76edf
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains lures related to game hacks and free currency, directing users to a malicious redirector URL. This indicates a phishing or malware distribution attempt, likely leveraging a PDF exploit to execute a payload. No scripts were extracted, but the presence of malicious links and the ML classifier's high confidence score support this assessment.

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/get-all-the-tattletails-free-on-roblox-game-hack In PDF document text
    • http://library.stembi.ac.id/repository/site-de-hack-roblox-xbox_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/how-to-hack-ninja-legends-roblox_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/roblox-hack-minig-simulator-v3rmillion_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/free-robux-co_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/how-to-hack-roblox-with-winrar-pc_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/robux-free-com_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/minecraft-games-free-to-play-online_GM479516143.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/viper-venom-fabulous-hack-roblox_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/how-to-get-free-robux-on-computer_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/free-roblox-birthday-card-printable_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/how-to-fix-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/roblox-admin-panel-robux-hack_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/https-roblox-free-robux-web-wordpress-com_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/2021-headphones-roblox-free_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/knife-server-roblox-hack_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/free-roblox-no2-copy_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/roblox-tower-defense-simulator-cheats_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/free-robux-no-verify_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/coin-master-free-spins-link-2021_GM406889139.pdfIn 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
font_00_sfnt_off00002fc7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FC7 22060 bytes
SHA-256: cc7dc03f24bacd89eff3408635d7c253db92752dcc60f60e586d6715c46dc142
font_01_sfnt_off000060b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60B6 19040 bytes
SHA-256: abf551b28f8d0d5bcae5e4da2853bbe6247d6ba12d1c0a92ca34cc11ca8e891f

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