PDF malware analysis — malicious · a3d1f15e7988af5d

MALICIOUS

PDF

45.1 KB Created: 2021-06-03 18:16:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 91f5394016111eda06d9b9b0647f6aca SHA-1: f08b9e4204ffedf773f06e458260a146fc1d280f SHA-256: a3d1f15e7988af5d1b8a193142831988a33484ffd01975d76a2a4d172823a4a0

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains a high-severity heuristic indicating it links to a game hack redirector, specifically targeting users interested in 'Coin Master' cheats. The embedded URL, https://netcdn.online/app/406889139/coin-master-hack-ios-app-game-hack, is the primary indicator of this malicious lure. While no scripts were extracted, the document's structure and heuristics strongly suggest a phishing attempt to redirect users to a potentially malicious site.

Machine Learning

Nyx PDF Classifier malicious score 0.9865

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 https://netcdn.online/app/406889139/coin-master-hack-ios-app-game-hack PDF link annotation
- https://www.talakeel.com/uploaded_files/userfiles/files/coin-master-unlimited-spin-and-coin-hack_GM406889139.pdfIn PDF document text
- https://www.talakeel.com/uploaded_files/userfiles/files/coin-master-free-spins-and-coins-today_GM406889139.pdfIn PDF document text
- https://www.talakeel.com/uploaded_files/userfiles/files/my-roblox-account-was-hacked_GM431946152.pdfIn PDF document text
- https://www.talakeel.com/uploaded_files/userfiles/files/minecraft-free-download-ios_GM479516143.pdfIn PDF document text
- https://www.talakeel.com/uploaded_files/userfiles/files/is-roblox-studio-free_GM431946152.pdfIn PDF document text
- https://www.talakeel.com/uploaded_files/userfiles/files/hacks-para-roblox_GM431946152.pdfIn PDF document text
- https://www.talakeel.com/uploaded_files/userfiles/files/free-robux-earn_GM431946152.pdfIn PDF document text
- https://www.talakeel.com/uploaded_files/userfiles/files/coin-master-daily-free-spins-link-today-twitter_GM406889139.pdfIn PDF document text
- https://www.talakeel.com/uploaded_files/userfiles/files/free-robux-today_GM431946152.pdfIn PDF document text
- https://www.talakeel.com/uploaded_files/userfiles/files/best-free-minecraft-hacked-client_GM479516143.pdfIn PDF document text
- https://www.talakeel.com/uploaded_files/userfiles/files/coin-master-rewards_GM406889139.pdfIn PDF document text
- https://www.talakeel.com/uploaded_files/userfiles/files/free-robux-group-payouts_GM431946152.pdfIn PDF document text
- https://www.talakeel.com/uploaded_files/userfiles/files/can-i-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.talakeel.com/uploaded_files/userfiles/files/roblox-land-free-robux_GM431946152.pdfIn PDF document text
- https://www.talakeel.com/uploaded_files/userfiles/files/how-to-get-minecraft-coins-for-free_GM479516143.pdfIn PDF document text
- https://www.talakeel.com/uploaded_files/userfiles/files/roblox-generator-no-verification_GM431946152.pdfIn PDF document text
- https://www.talakeel.com/uploaded_files/userfiles/files/free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
- https://www.talakeel.com/uploaded_files/userfiles/files/free-robux-without-human-verification_GM431946152.pdfIn PDF document text
- https://www.talakeel.com/uploaded_files/userfiles/files/get-free-robux-gg_GM431946152.pdfIn PDF document text
- https://www.talakeel.com/uploaded_files/userfiles/files/free-spin-coin-master-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_off000052ea.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x52EA	28724 bytes
SHA-256: `a566a4be498e3210813aa2baee3f408b9ae83a0e9bb35cbdc0edbb9daee0e4c8`
`font_01_sfnt_off00008eb5.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8EB5	17892 bytes
SHA-256: `c18f05485291fd9dd2d982fa815b69c2a1f9afc9df9b250f8ccfc4cbb8514acf`

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