PDF malware analysis — malicious · 74deb3246c8889a3

MALICIOUS

PDF

34.1 KB Created: 2021-07-10 02:18:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-22

MD5: ee7056b75926073a3d3fffba640772f1 SHA-1: a49c767ff0228b92e744fd426cea511abfa701a0 SHA-256: 74deb3246c8889a34cd54fe619d13375d1b9301c1849370ff8733bf375f7f016

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 4

PDF links to a 'free generator / game hack' redirector high 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.
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
External URI info PDF_URI

PDF contains an external URL action
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/free-minecraft-premium-account-game-hack PDF link annotation
- http://mountain.mn/uploads/files/coin-master-hack-pro-gamers_GM406889139.pdfIn PDF document text
- http://mountain.mn/uploads/files/coin-master-facebook-hack_GM406889139.pdfIn PDF document text
- http://mountain.mn/uploads/files/coin-master-apk-mod_GM406889139.pdfIn PDF document text
- http://mountain.mn/uploads/files/how-to-get-free-minecraft-skins_GM479516143.pdfIn PDF document text
- http://mountain.mn/uploads/files/free-ways-to-get-robux_GM431946152.pdfIn PDF document text
- http://mountain.mn/uploads/files/coin-master-coins-hack_GM406889139.pdfIn PDF document text
- http://mountain.mn/uploads/files/free-coins-2021-coin-master-link_GM406889139.pdfIn PDF document text
- http://mountain.mn/uploads/files/coin-master-online-hack-tool_GM406889139.pdfIn PDF document text
- http://mountain.mn/uploads/files/free-coins-for-coin-master_GM406889139.pdfIn PDF document text
- http://mountain.mn/uploads/files/minecraft-for-free-games_GM479516143.pdfIn PDF document text
- http://mountain.mn/uploads/files/coin-spin-link_GM406889139.pdfIn PDF document text
- http://mountain.mn/uploads/files/how-to-get-free-robux-app_GM431946152.pdfIn PDF document text
- http://mountain.mn/uploads/files/how-do-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
- http://mountain.mn/uploads/files/mine-minecraft-games-for-free_GM479516143.pdfIn PDF document text
- http://mountain.mn/uploads/files/free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
- http://mountain.mn/uploads/files/coin-master-bonus_GM406889139.pdfIn PDF document text
- http://mountain.mn/uploads/files/free-roblox-clothes-girl_GM431946152.pdfIn PDF document text
- http://mountain.mn/uploads/files/huskybuscom-free-robux_GM431946152.pdfIn PDF document text
- http://mountain.mn/uploads/files/coin-master-lucky-patcher-hack_GM406889139.pdfIn PDF document text
- http://mountain.mn/uploads/files/free-college-textbooks-tiktok_GM835599320.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_off00003105.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3105	22284 bytes
SHA-256: `4f81b0afbf314d04465084d14861d618631660496dd65cb735d4b477b8673645`
`font_01_sfnt_off000061db.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x61DB	18552 bytes
SHA-256: `335ad5bd11d1b5490beeffd4b04e426b92c3c8588cbb26eb3dbcf918d515cd86`

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