PDF malware analysis — malicious · df267152af333582

MALICIOUS

PDF

36.0 KB Created: 2021-07-03 14:26:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 53ade0e033f72f15116c93ccc0405b5c SHA-1: c795b2b649bb347c968995b7b6320f333003e949 SHA-256: df267152af33358264a2cd101891a5db897540d9b63f846c26dacaefcf6e1789

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains a high-severity heuristic indicating it links to a game hack redirector, specifically targeting 'Coin Master'. The embedded URL, http://netcdn.tw/app/406889139/coin-master-unlimited-spin-hack-apk-game-hack, is likely the initial point of compromise, leading users to a malicious site. While no scripts were explicitly extracted, the nature of the lure suggests potential for further exploitation or credential harvesting.

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/406889139/coin-master-unlimited-spin-hack-apk-game-hack PDF link annotation
- https://www.ak-oroslavje.hr/files/coin-master-hack-2021-ios_GM406889139.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/daily-free-spins_GM406889139.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/free-minecraft-account-list_GM479516143.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/how-to-get-more-robux-for-free_GM431946152.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/free-spin-link-in-coin-master_GM406889139.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/minecraft-apk-free-download_GM479516143.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/coin-master-spin-cheat_GM406889139.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/how-to-earn-robux_GM431946152.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/roblox-vheicle-simulator-hacks_GM431946152.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/how-to-get-free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/how-to-get-free-builders-club-on-roblox-2021_GM431946152.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/boku-no-roblox-hack_GM431946152.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/free-spins-coins-coin-master_GM406889139.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/roblox-cheats-for-money-2021_GM431946152.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/destroy-roblox-hack_GM431946152.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/free-robux-no-eyes-no_GM431946152.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/custom-admin-roblox-hack_GM431946152.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/free-robux-generator-no-verification_GM431946152.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/free-robux-promo-codes-february-2021_GM431946152.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/coin-master-hack-ios-download_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_off000033a5.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x33A5	23416 bytes
SHA-256: `dcc888f120ea6513105cd2502077fdfbe96bf795d2e3219d713439571c5cf6a9`
`font_01_sfnt_off0000686b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x686B	18876 bytes
SHA-256: `7e2ee907f2feac738be75e17c27693a65f159ea6ad788202b30771c529da622a`

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