PDF malware analysis — malicious · 0d395d8e41ef157f

MALICIOUS

PDF

36.0 KB Created: 2021-07-04 20:27:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-14

MD5: 1d3ea8a906d510deb769bb33e0870773 SHA-1: 9bcc8e9b8c8425340db96b00029ac4510db2900b SHA-256: 0d395d8e41ef157fd74b246b7d98aa2cb6f2c7ea83daf12e00a7db720ba8462e

240 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 6

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.
Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
Callback phishing phone lure medium SE_CALLBACK_LURE

Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
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/google-play-coin-master-free-spins-game-hack In PDF document text
- https://e-learning.manurulhuda-csp.sch.id/__statics/gudangsoal/files/free-stuff-roblox-avatar_GM431946152.pdfIn PDF document text
- https://e-learning.manurulhuda-csp.sch.id/__statics/gudangsoal/files/roblox-free-admin-how-spawn-monster_GM431946152.pdfIn PDF document text
- https://e-learning.manurulhuda-csp.sch.id/__statics/gudangsoal/files/counter-blox-roblox-offensive-hacks-2021-v3rmillion_GM431946152.pdfIn PDF document text
- https://e-learning.manurulhuda-csp.sch.id/__statics/gudangsoal/files/how-to-get-free-admin-on-roblox-mad-murderer-2_GM431946152.pdfIn PDF document text
- https://e-learning.manurulhuda-csp.sch.id/__statics/gudangsoal/files/how-to-get-250-million-robux-for-free_GM431946152.pdfIn PDF document text
- https://e-learning.manurulhuda-csp.sch.id/__statics/gudangsoal/files/free-robux-bloxburg_GM431946152.pdfIn PDF document text
- https://e-learning.manurulhuda-csp.sch.id/__statics/gudangsoal/files/coin-master-download-hack_GM406889139.pdfIn PDF document text
- https://e-learning.manurulhuda-csp.sch.id/__statics/gudangsoal/files/2021-no-human-verification-hack-for-coin-master_GM406889139.pdfIn PDF document text
- https://e-learning.manurulhuda-csp.sch.id/__statics/gudangsoal/files/coin-master-daily-free-spins-link-app_GM406889139.pdfIn PDF document text
- https://e-learning.manurulhuda-csp.sch.id/__statics/gudangsoal/files/coin-master-unlimited-spins-hack_GM406889139.pdfIn PDF document text
- https://e-learning.manurulhuda-csp.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-march-2021_GM406889139.pdfIn PDF document text
- https://e-learning.manurulhuda-csp.sch.id/__statics/gudangsoal/files/minecraft-com-free_GM479516143.pdfIn PDF document text
- https://e-learning.manurulhuda-csp.sch.id/__statics/gudangsoal/files/cheats-for-retail-tycoon-roblox_GM431946152.pdfIn PDF document text
- https://e-learning.manurulhuda-csp.sch.id/__statics/gudangsoal/files/rbx-gg-free-robux_GM431946152.pdfIn PDF document text
- https://e-learning.manurulhuda-csp.sch.id/__statics/gudangsoal/files/free-robux-no-verification-or-survey-2021_GM431946152.pdfIn PDF document text
- https://e-learning.manurulhuda-csp.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-accounts-on-phone_GM431946152.pdfIn PDF document text
- https://e-learning.manurulhuda-csp.sch.id/__statics/gudangsoal/files/bux-free-robux_GM431946152.pdfIn PDF document text
- https://e-learning.manurulhuda-csp.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-for-kids_GM431946152.pdfIn PDF document text
- https://e-learning.manurulhuda-csp.sch.id/__statics/gudangsoal/files/how-to-get-free-admin-on-roblox-2021_GM431946152.pdfIn PDF document text
- https://e-learning.manurulhuda-csp.sch.id/__statics/gudangsoal/files/roblox-mining-sim-hack-pastebni-december-2021_GM431946152.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_002_off00003546.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x3546	23180 bytes
SHA-256: `a704d6a472039774c2e2753853b89ded7bac85f64050becb38f978f7e33db2b4`
`font_01_sfnt_off00006992.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6992	18580 bytes
SHA-256: `1c538771e53aaf880648a8a2114933acb681f59120eeaffc14db9907698dcfe9`

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