Malicious PDF — malware analysis report

Static analysis result for SHA-256 89b06afb896836b7…

MALICIOUS

PDF

35.3 KB Created: 2021-07-05 08:55:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: db5af57e1782a6a917392cdb8ac08550 SHA-1: e2719817a5c68eba9bcaeffdf88f3cebf8d2d7ca SHA-256: 89b06afb896836b74a388b84c87bdc17691a9e0fb79562b15d1b61d4124f248b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to potentially malicious content, specifically lures for game hacks and free currency. The primary redirector URL is http://netcdn.tw/app/431946152/roblox-promo-codes-2021-robux-game-hack, which is flagged as malicious. The document body and embedded URLs reinforce this lure, aiming to trick users into clicking through to compromised sites.

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/431946152/roblox-promo-codes-2021-robux-game-hack In PDF document text
    • http://elearning.mtsn3lebak.sch.id/__statics/gudangsoal/files/free-robux-no-verify-2021_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn3lebak.sch.id/__statics/gudangsoal/files/free-roblox-accessories_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn3lebak.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn3lebak.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-in-a-ad_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn3lebak.sch.id/__statics/gudangsoal/files/roblox-mod-free-robux-apk_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn3lebak.sch.id/__statics/gudangsoal/files/coin-master-free-cards-link-2021_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn3lebak.sch.id/__statics/gudangsoal/files/best-free-survival-games-on-roblox_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn3lebak.sch.id/__statics/gudangsoal/files/roblox-spiele-hacke_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn3lebak.sch.id/__statics/gudangsoal/files/how-to-get-bc-for-free-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn3lebak.sch.id/__statics/gudangsoal/files/free-spin-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn3lebak.sch.id/__statics/gudangsoal/files/robux-earning-sites_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn3lebak.sch.id/__statics/gudangsoal/files/roblox-hack-inspect-element-2021_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn3lebak.sch.id/__statics/gudangsoal/files/free-roblox-website_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn3lebak.sch.id/__statics/gudangsoal/files/image-de-tshirt-roblox-free_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn3lebak.sch.id/__statics/gudangsoal/files/roblox-booga-booga-hack_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn3lebak.sch.id/__statics/gudangsoal/files/business-simulator-roblox-cheat_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn3lebak.sch.id/__statics/gudangsoal/files/how-to-cheat-on-boxing-simulator-2-roblox_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn3lebak.sch.id/__statics/gudangsoal/files/coin-master-hack-app-android_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn3lebak.sch.id/__statics/gudangsoal/files/make-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn3lebak.sch.id/__statics/gudangsoal/files/e-free-roblox_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_off00003152.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3152 22444 bytes
SHA-256: e87f3dc90a6b51f95729e09f716521a1fcb2542e73bc623c44d22e330194ae38
font_01_sfnt_off0000630c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x630C 19616 bytes
SHA-256: aedf02d7f0b7ca1977671ed02758df5f4e20327b562b1ca1699aff0c252b4351

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