PDF malware analysis — malicious · 685110fe85282f61

MALICIOUS

PDF

45.0 KB Created: 2021-05-17 10:33:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04

MD5: 4a4dc60dd41c07fb8f5f4c57aaeb347d SHA-1: 2f26a7f949c5778ef50e42a8851145f64d04bf71 SHA-256: 685110fe85282f618db0801bc7272bb37c0610491fe6bd2f356d180e9f68f337

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting "game hacks" and "free spins" for popular games. The primary lure URL is https://netcdn.xyz/app/406889139/coin-master-free-spins-game-hack. While no scripts were explicitly extracted, the PDF structure and heuristic firings indicate a malicious redirector designed to trick users into visiting potentially harmful sites. The document body contains garbled text and embedded URLs, reinforcing the lure.

Machine Learning

Nyx PDF Classifier malicious score 0.9632

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/coin-master-free-spins-game-hack In PDF document text
- https://elearningmas.alhidayahwanti.sch.id/__statics/gudangsoal/files/free-spins-and-coins-for-coin-master_GM406889139.pdfIn PDF document text
- https://elearningmas.alhidayahwanti.sch.id/__statics/gudangsoal/files/free-robux-codes-2021_GM431946152.pdfIn PDF document text
- https://elearningmas.alhidayahwanti.sch.id/__statics/gudangsoal/files/coin-master-free-chest-link_GM406889139.pdfIn PDF document text
- https://elearningmas.alhidayahwanti.sch.id/__statics/gudangsoal/files/coin-master-online-hack-generator_GM406889139.pdfIn PDF document text
- https://elearningmas.alhidayahwanti.sch.id/__statics/gudangsoal/files/robux-miner_GM431946152.pdfIn PDF document text
- https://elearningmas.alhidayahwanti.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
- https://elearningmas.alhidayahwanti.sch.id/__statics/gudangsoal/files/coin-master-free-shield-link_GM406889139.pdfIn PDF document text
- https://elearningmas.alhidayahwanti.sch.id/__statics/gudangsoal/files/pop-slots-free-vegas-casino-slot-machine-game-coin-master_GM406889139.pdfIn PDF document text
- https://elearningmas.alhidayahwanti.sch.id/__statics/gudangsoal/files/mcpe-master-coins-hack_GM406889139.pdfIn PDF document text
- https://elearningmas.alhidayahwanti.sch.id/__statics/gudangsoal/files/hacks-for-coin-master_GM406889139.pdfIn PDF document text
- https://elearningmas.alhidayahwanti.sch.id/__statics/gudangsoal/files/mc-hacks_GM479516143.pdfIn PDF document text
- https://elearningmas.alhidayahwanti.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-easy-on-phone_GM431946152.pdfIn PDF document text
- https://elearningmas.alhidayahwanti.sch.id/__statics/gudangsoal/files/coin-master-hack-2021-free_GM406889139.pdfIn PDF document text
- https://elearningmas.alhidayahwanti.sch.id/__statics/gudangsoal/files/free-robux-images_GM431946152.pdfIn PDF document text
- https://elearningmas.alhidayahwanti.sch.id/__statics/gudangsoal/files/coin-master-free-spin-daily-link_GM406889139.pdfIn PDF document text
- https://elearningmas.alhidayahwanti.sch.id/__statics/gudangsoal/files/free-robux-codes_GM431946152.pdfIn PDF document text
- https://elearningmas.alhidayahwanti.sch.id/__statics/gudangsoal/files/how-to-get-minecraft-for-free_GM479516143.pdfIn PDF document text
- https://elearningmas.alhidayahwanti.sch.id/__statics/gudangsoal/files/minecraft-free-app_GM479516143.pdfIn PDF document text
- https://elearningmas.alhidayahwanti.sch.id/__statics/gudangsoal/files/minecraft-bedrock-hacks_GM479516143.pdfIn PDF document text
- https://elearningmas.alhidayahwanti.sch.id/__statics/gudangsoal/files/free-spins-coin-master-2021-hack_GM406889139.pdfIn PDF document text
- https://coinmasterspinandcoin.comIn 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_off00004ab8.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4AB8	25164 bytes
SHA-256: `df614ff7b3af6fe3ddbe2e220c72d2951893f6366bdb1dd19f710318f40698b0`
`font_01_sfnt_off0000849c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x849C	2880 bytes
SHA-256: `10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132`
`font_02_sfnt_off00008e86.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8E86	17884 bytes
SHA-256: `7b855ef2bb944b5b370c61480927ccad63ff31bdbf820bc1f0da9d35a10f5fb2`

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