PDF malware analysis — malicious · 4cacfb2f906b4e15

MALICIOUS

PDF

34.7 KB Created: 2021-06-27 22:50:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04

MD5: 13908510d063f66a6eed1daf5de415ac SHA-1: 2aee0fa919682095a00189929f897e8a1a78e438 SHA-256: 4cacfb2f906b4e1589fefe8402d2cf8ed71ccc6326e01972946d08b36f77b68b

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to malicious infrastructure, masquerading as game hacks and generators. The primary lure is a link to 'how-to-get-hack-on-roblox-to-walk-through-walls-game-hack', which is hosted on netcdn.co. The document body and heuristics confirm the malicious redirector links, indicating a phishing or scam attempt to lead users to potentially harmful content or further malware downloads.

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-get-hack-on-roblox-to-walk-through-walls-game-hack In PDF document text
- http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/likes-for-tiktok-free_GM835599320.pdfIn PDF document text
- http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/infinite-health-hack-roblox_GM431946152.pdfIn PDF document text
- http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/hacking-games-on-roblox-with-neopde-engine_GM431946152.pdfIn PDF document text
- http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/coin-master-hack-app-download-free_GM406889139.pdfIn PDF document text
- http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/hack-de-roblox-robux-2021_GM431946152.pdfIn PDF document text
- http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/coin-master-redeem-code-free_GM406889139.pdfIn PDF document text
- http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/premium-software-roblox-hack_GM431946152.pdfIn PDF document text
- http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/free-gift-card-codes-roblox-2021_GM431946152.pdfIn PDF document text
- http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/free-spin-link-for-coin-master-game_GM406889139.pdfIn PDF document text
- http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
- http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/how-do-you-get-free-roblox_GM431946152.pdfIn PDF document text
- http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/free-tiktok-followers-no-downloads_GM835599320.pdfIn PDF document text
- http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/robux-games_GM431946152.pdfIn PDF document text
- http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/free-robux-net_GM431946152.pdfIn PDF document text
- http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/roblox-hack-2021-free-robux-pc_GM431946152.pdfIn PDF document text
- http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/coin-master-free-spins-for-today_GM406889139.pdfIn PDF document text
- http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/free-robux-no-apps_GM431946152.pdfIn PDF document text
- http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/resource-free-robux_GM431946152.pdfIn PDF document text
- http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/ez-hacker-roblox_GM431946152.pdfIn PDF document text
- http://balibetonmandiri.com/new/public/ckfinder/userfiles/files/coin-master-free-spin-link-today-2021_GM406889139.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
`font_00_sfnt_off000031d7.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x31D7	21692 bytes
SHA-256: `6b59aa2ea27bf2753d8c064a921c327549ed4c9989f7ca02477ae5c22d63887f`
`font_01_sfnt_off00006161.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6161	19428 bytes
SHA-256: `cfff22f89d40e99d2983459aa6102ef3236ae32226aff0bade2818632605af79`

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