PDF malware analysis — malicious · d798450e3da50488

MALICIOUS

PDF

31.5 KB Created: 2021-07-20 13:50:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-27

MD5: f21c973ed866e55e1a966e00305414f6 SHA-1: ff73f5e8e2c095253f4354673efee10856b3aef4 SHA-256: d798450e3da50488665c0e2077998ff65b1e994bddee834e4269652fb877c575

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to known malicious infrastructure, specifically promoting a "free generator / game hack" for Minecraft. The document body also contains a "CLICK HERE TO ACCESS MINECRAFT GENERATOR" call to action, reinforcing the lure. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a phishing or scam attempt designed to lead users to potentially harmful content or further malicious downloads.

Machine Learning

Nyx PDF Classifier malicious score 0.9893

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/479516143/minecraft-pc-free-game-hack In PDF document text
- https://www.manmed.info:443/images/free-minecraft-account_GM479516143.pdfIn PDF document text
- https://www.manmed.info:443/images/roblox-free-robux-codes_GM431946152.pdfIn PDF document text
- https://www.manmed.info:443/images/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
- https://www.manmed.info:443/images/free-robux-obby_GM431946152.pdfIn PDF document text
- https://www.manmed.info:443/images/minecraft-skins-free-girl_GM479516143.pdfIn PDF document text
- https://www.manmed.info:443/images/how-to-get-free-robux-easy-no-download_GM431946152.pdfIn PDF document text
- https://www.manmed.info:443/images/free-likes-on-tiktok_GM835599320.pdfIn PDF document text
- https://www.manmed.info:443/images/get-tiktok-followers-free_GM835599320.pdfIn PDF document text
- https://www.manmed.info:443/images/hacker-minecraft-song_GM479516143.pdfIn PDF document text
- https://www.manmed.info:443/images/minecraft-mac-free_GM479516143.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_off00002a52.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2A52	21992 bytes
SHA-256: `08c657bb249b8b361146aa1720762b21a7d35e2393b4340a160d107f35a1c583`
`font_01_sfnt_off00005ac4.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5AC4	17724 bytes
SHA-256: `f623db3d5896acbfca75c1fa71b49e9ae1d6d1c000a87567f3c2fb9ea3a364ca`

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