Malicious PDF — malware analysis report

Static analysis result for SHA-256 e646d0256ffad724…

MALICIOUS

PDF

33.4 KB Created: 2021-07-06 13:02:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: a486cdcc00cb5225ef2e18fa8af03de2 SHA-1: 6b30a8ca684c60abe18c4fbe64a960d47e8d26a1 SHA-256: e646d0256ffad724e7959c4dc868fc6c2098945826d2b43f9998161a1f443f48
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors and sites offering free game hacks and currency, such as 'free-minecraft-hacks-game-hack'. The document body and heuristics indicate a lure to trick users into visiting these sites, likely leading to further malware downloads or phishing attempts. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent.

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.tw/app/479516143/free-minecraft-hacks-game-hack In PDF document text
    • http://sttlets.education/senayan/repository/coin-master-free-spins-link-2021-no-verification_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/minecraft-free-trial_GM479516143.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/get-free-robux-by-pay-out-after-offre_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/roblox-admin-hack_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/complete-offers-for-robux_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/how-to-play-coin-master_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/free-toy-codes-roblox-2021_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/free-obc-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/pokemon-ultra-brick-bronze-roblox-free-shiny-umbreon_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/how-do-you-get-free-robux-on-a-samsung_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/free-robux-key_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/more-robux_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/united-gaming-net-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/coin-master-hack-mod-apk-free-download_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/774-roblox-hack-download_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/apps-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/free-minecraft-texture-packs_GM479516143.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/game-hunters-coin-master_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/coin-master-hack-apk-april-12-2021_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/free-draw-roblox-kicked-error-247_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 7

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_off00002fa1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FA1 22264 bytes
SHA-256: 98891ab01b4e2d634f69aef314d3fde99dd172b080829dbe59fc13f5d66c3d03
font_01_sfnt_off000060bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60BB 18024 bytes
SHA-256: 8f8fda7ec61391a8021437fea0b23093d98da4680992c9daa6c8728c6d82e4f2

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