PDF malware analysis — malicious · bd03669ac29c2f1a

MALICIOUS

PDF

45.6 KB Created: 2021-05-11 04:51:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04

MD5: 731f102a6308be23e117579d217bd56e SHA-1: d13b1af63b7f5be09b04231bf26d786de2251079 SHA-256: bd03669ac29c2f1acb862f1a56c7108fc2e2ad2fc2ebe718a981297714ecb9fb

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, disguised as 'game hacks' and 'free currency generators'. The primary malicious URL identified is https://netcdn.xyz/app/406889139/gamehunters-club-coin-master-game-hack. The document body and embedded URLs suggest a lure for users seeking in-game currency or cheats, which is a common phishing or malware distribution tactic. No scripts were extracted, but the presence of malicious links and the ML classifier's high confidence indicate a high likelihood of malicious intent.

Machine Learning

Nyx PDF Classifier malicious score 0.9507

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 https://netcdn.xyz/app/406889139/gamehunters-club-coin-master-game-hack In PDF document text
- https://www.elearning.man1bukittinggi.sch.id/__statics/gudangsoal/files/coin-master-hack-without-verification-site-zyngaplayerforumscom_GM406889139.pdfIn PDF document text
- https://www.elearning.man1bukittinggi.sch.id/__statics/gudangsoal/files/free-robux-net_GM431946152.pdfIn PDF document text
- https://elearning.man1bukittinggi.sch.id/__statics/gudangsoal/files/free-robux-no-apps_GM431946152.pdfIn PDF document text
- https://www.elearning.man1bukittinggi.sch.id/__statics/gudangsoal/files/coin-master-hack-apk-2021_GM406889139.pdfIn PDF document text
- https://www.elearning.man1bukittinggi.sch.id/__statics/gudangsoal/files/free-robux-hack-us_GM431946152.pdfIn PDF document text
- https://www.elearning.man1bukittinggi.sch.id/__statics/gudangsoal/files/free-account-roblox-with-robux_GM431946152.pdfIn PDF document text
- https://www.elearning.man1bukittinggi.sch.id/__statics/gudangsoal/files/real-free-robux-generator_GM431946152.pdfIn PDF document text
- https://elearning.man1bukittinggi.sch.id/__statics/gudangsoal/files/coin-master-free-spins-links-app_GM406889139.pdfIn PDF document text
- https://www.elearning.man1bukittinggi.sch.id/__statics/gudangsoal/files/free-robux-no-apps_GM431946152.pdfIn PDF document text
- https://www.elearning.man1bukittinggi.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-download_GM406889139.pdfIn PDF document text
- https://elearning.man1bukittinggi.sch.id/__statics/gudangsoal/files/roblox-login-hack_GM431946152.pdfIn PDF document text
- https://www.elearning.man1bukittinggi.sch.id/__statics/gudangsoal/files/coin-master-bonus_GM406889139.pdfIn PDF document text
- https://elearning.man1bukittinggi.sch.id/__statics/gudangsoal/files/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
- https://www.elearning.man1bukittinggi.sch.id/__statics/gudangsoal/files/how-to-get-free-spins-on-coin-master-game_GM406889139.pdfIn PDF document text
- https://www.elearning.man1bukittinggi.sch.id/__statics/gudangsoal/files/free-role-in-coin-master_GM406889139.pdfIn PDF document text
- https://www.elearning.man1bukittinggi.sch.id/__statics/gudangsoal/files/robux-premium_GM431946152.pdfIn PDF document text
- https://elearning.man1bukittinggi.sch.id/__statics/gudangsoal/files/minecraft-cheats-pc-2021_GM479516143.pdfIn PDF document text
- https://elearning.man1bukittinggi.sch.id/__statics/gudangsoal/files/free-robux-generator-no-human-verification_GM431946152.pdfIn PDF document text
- https://elearning.man1bukittinggi.sch.id/__statics/gudangsoal/files/free-spin-coin-master-2021_GM406889139.pdfIn PDF document text
- https://www.elearning.man1bukittinggi.sch.id/__statics/gudangsoal/files/can-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off00004bb4.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4BB4	26248 bytes
SHA-256: `fa45dbdd0f1ab34946645ce019f414eda75a281cf927f1a50e86ac3e48a2da6b`
`font_01_sfnt_off0000860f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x860F	2824 bytes
SHA-256: `381f6d859be141449dd645f7be1484d2a1cf49218dc471b402dae69eaa2b11d5`
`font_02_sfnt_off00008fb2.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8FB2	18344 bytes
SHA-256: `b88ceadbe0b6d1d65a470e0e680a5efbdbd0168571786ac3707ef7c7d11d99d3`

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