Malicious PDF — malware analysis report

Static analysis result for SHA-256 c51130f195195604…

MALICIOUS

PDF

35.1 KB Created: 2021-06-29 08:18:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 589be3e58d6186cfb6869366df87e549 SHA-1: a3e25c7685567dd6ff8e701b627bfd4e18c13d02 SHA-256: c51130f1951956043c0f2392808c4aac32f2cdede152835047fce24fbe1f73b0
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple embedded URLs that lead to malicious redirectors, disguised as game hacks and generators. The document body and heuristics indicate a lure designed to entice users to click these links, likely leading to further malicious content or downloads. No scripts were extracted, but the presence of malicious URLs and the lure strongly suggest a phishing or malware distribution attempt.

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-admin-on-roblox-without-cheat-engine-game-hack In PDF document text
    • http://e.mandacianjur.sch.id/__statics/gudangsoal/files/free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://e.mandacianjur.sch.id/__statics/gudangsoal/files/roblox-bloxburg-free-game_GM431946152.pdfIn PDF document text
    • http://e.mandacianjur.sch.id/__statics/gudangsoal/files/coin-master-hack-2021-no-human-verification_GM406889139.pdfIn PDF document text
    • http://e.mandacianjur.sch.id/__statics/gudangsoal/files/roblox-free-item-codes_GM431946152.pdfIn PDF document text
    • http://e.mandacianjur.sch.id/__statics/gudangsoal/files/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • http://e.mandacianjur.sch.id/__statics/gudangsoal/files/free-robux-wheel_GM431946152.pdfIn PDF document text
    • http://e.mandacianjur.sch.id/__statics/gudangsoal/files/coin-master-hack-tool-v1-9-apk_GM406889139.pdfIn PDF document text
    • http://e.mandacianjur.sch.id/__statics/gudangsoal/files/download-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://e.mandacianjur.sch.id/__statics/gudangsoal/files/hack-coin-master-no-verification_GM406889139.pdfIn PDF document text
    • http://e.mandacianjur.sch.id/__statics/gudangsoal/files/robux-hack-without-human-verification-and-survey_GM431946152.pdfIn PDF document text
    • http://e.mandacianjur.sch.id/__statics/gudangsoal/files/how-do-we-get-free-robux_GM431946152.pdfIn PDF document text
    • http://e.mandacianjur.sch.id/__statics/gudangsoal/files/coin-master-lucky-patcher-hack_GM406889139.pdfIn PDF document text
    • http://e.mandacianjur.sch.id/__statics/gudangsoal/files/free-coins-and-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://e.mandacianjur.sch.id/__statics/gudangsoal/files/how-to-get-free-spins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://e.mandacianjur.sch.id/__statics/gudangsoal/files/i-got-hacked-on-roblox_GM431946152.pdfIn PDF document text
    • http://e.mandacianjur.sch.id/__statics/gudangsoal/files/coin-master-free-coins-facebook_GM406889139.pdfIn PDF document text
    • http://e.mandacianjur.sch.id/__statics/gudangsoal/files/daily-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://e.mandacianjur.sch.id/__statics/gudangsoal/files/coin-master-free-spin-group_GM406889139.pdfIn PDF document text
    • http://e.mandacianjur.sch.id/__statics/gudangsoal/files/coin-master-gifts_GM406889139.pdfIn PDF document text
    • http://e.mandacianjur.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-today-instagram_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 4

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_off00003138.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3138 21888 bytes
SHA-256: 7750609e143c671e6e0d35b88a361d6af3e9f2c2dfaa5347b7ad6a54157c3de7
font_01_sfnt_off00006173.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6173 19984 bytes
SHA-256: 1265cc3016f0bdb6d4f8325c36188632934027aec12c4332747f0396e2174845

Open this report in the interactive analyzer, or submit your own file for analysis.