Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c4cb7e70ff1131c…

MALICIOUS

PDF

36.0 KB Created: 2021-06-28 00:27:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6f80082913c0ed5fd7c212fb4fe5c08b SHA-1: e8cb2ca64774b279ba27ccf023d0d0bd834d1a5d SHA-256: 7c4cb7e70ff1131c2cff30b6ec3ddf9f258ba49d69e3f732f6535a08bf290e70
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to external websites, including a known malicious redirector, under the guise of providing game hacks and cheats. The document body and heuristics indicate a lure for free in-game currency or hacks, which is a common social engineering tactic. The embedded URLs likely lead to further malicious content, such as malware downloads or phishing pages.

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/how-to-hack-roblox-2021-may-game-hack In PDF document text
    • http://lib.smklabor.sch.id/repository/how-to-get-free-coins-and-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/hack-roblox-users_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/free-robux-ez-points-gg_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/roblox-promo-codes-2021-robux_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/minecraft-ps4-code-free_GM479516143.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/roblox-no-scope-sniping-hack-gui_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/free-robux-scams_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/how-to-get-a-lue-injector-for-hacking-roblox_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/hacks-for-minecraft-windows-10_GM479516143.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/free-robux-codes-free_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/robux-online-free_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/how-to-get-free-robux-fast-and-easy_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/coin-master-free-spin-and-coins-links-2021_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/coin-master-free-spins-hack-without-human-verification_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/coin-master-hack-without-verification-code_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/roblox-arsenal-hacks-download_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/are-free-robux-sites-legit_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/best-free-minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/coin-master-unlimited-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/free-500-tiktok-likes_GM835599320.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_off00003307.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3307 22600 bytes
SHA-256: 7b8af1626cb1724410a714402a4a339cdd559cba272f5665bef6b21255023a7b
font_01_sfnt_off000065dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65DC 19600 bytes
SHA-256: 0acc395e36567d20c25b6625b3f1f2fa90b606f05eb89189f40a1b196215daae

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