Malicious PDF — malware analysis report

Static analysis result for SHA-256 c6e73c6a6f241054…

MALICIOUS

PDF

34.5 KB Created: 2021-07-08 08:06:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 1f2c875305f441d7b9712579c086ea5d SHA-1: 123cb619f65e86cef1e75c12b038dda4dbe0149a SHA-256: c6e73c6a6f241054f6e5e8c76506203916842ec570c6e65207510df39eb95d52
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, masquerading as game hack generators. The primary lure URL is http://netcdn.tw/app/406889139/hack-coin-master-for-iphone-game-hack, which is part of a chain of redirects. The document body and heuristics indicate a social engineering tactic to trick users into visiting these sites, likely leading to further malware downloads or phishing attempts.

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/406889139/hack-coin-master-for-iphone-game-hack In PDF document text
    • http://ppl.man2kediri.net/__statics/gudangsoal/files/robux-in_GM431946152.pdfIn PDF document text
    • http://ppl.man2kediri.net/__statics/gudangsoal/files/free-online-generator-for-coin-master_GM406889139.pdfIn PDF document text
    • http://ppl.man2kediri.net/__statics/gudangsoal/files/www-free-robux-com_GM431946152.pdfIn PDF document text
    • http://ppl.man2kediri.net/__statics/gudangsoal/files/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://ppl.man2kediri.net/__statics/gudangsoal/files/hacker-web-robux_GM431946152.pdfIn PDF document text
    • http://ppl.man2kediri.net/__statics/gudangsoal/files/archery-master-3d-unlimited-coins-hack_GM406889139.pdfIn PDF document text
    • http://ppl.man2kediri.net/__statics/gudangsoal/files/how-to-get-free-tiktok-fans_GM835599320.pdfIn PDF document text
    • http://ppl.man2kediri.net/__statics/gudangsoal/files/best-site-for-free-coin-master_GM406889139.pdfIn PDF document text
    • http://ppl.man2kediri.net/__statics/gudangsoal/files/how-do-you-hack-roblox_GM431946152.pdfIn PDF document text
    • http://ppl.man2kediri.net/__statics/gudangsoal/files/robuxmatchcon_GM431946152.pdfIn PDF document text
    • http://ppl.man2kediri.net/__statics/gudangsoal/files/inject-hack-roblox-2021_GM431946152.pdfIn PDF document text
    • http://ppl.man2kediri.net/__statics/gudangsoal/files/coin-master-free-spins-app_GM406889139.pdfIn PDF document text
    • http://ppl.man2kediri.net/__statics/gudangsoal/files/can-you-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://ppl.man2kediri.net/__statics/gudangsoal/files/coin-master-free-spins-generator-no-verification_GM406889139.pdfIn PDF document text
    • http://ppl.man2kediri.net/__statics/gudangsoal/files/no-scam-free-robux_GM431946152.pdfIn PDF document text
    • http://ppl.man2kediri.net/__statics/gudangsoal/files/roblox-printables-free_GM431946152.pdfIn PDF document text
    • http://ppl.man2kediri.net/__statics/gudangsoal/files/https-ninja-hack-club-roblox_GM431946152.pdfIn PDF document text
    • http://ppl.man2kediri.net/__statics/gudangsoal/files/good-info-free-robux_GM431946152.pdfIn PDF document text
    • http://ppl.man2kediri.net/__statics/gudangsoal/files/robux-cheat-codes-2021_GM431946152.pdfIn PDF document text
    • http://ppl.man2kediri.net/__statics/gudangsoal/files/fps-roblox-hacks_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
stream_002_off00002fa8.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2FA8 23008 bytes
SHA-256: 330b48840a54891afc558d16a93e5d59436b1b1b232a374d60c0cb0a39a3d977
font_01_sfnt_off0000639b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x639B 18512 bytes
SHA-256: 2705ed5b3631f76f4077d5fea6ffa0432e5092c00014600fb4d580f93b2b78c7

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