PDF malware analysis — malicious · 3a9bf65ba0be120c

MALICIOUS

PDF

34.3 KB Created: 2021-07-07 23:08:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: d0d406442f9eef76d1d6d7d3cbbb2f53 SHA-1: 416b6052464ea5d5016c978e1383befba7deb955 SHA-256: 3a9bf65ba0be120cdf15fe8ae6a709638f287b4cd358b22d43661ea362a256d8

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document contains multiple links and a lure for game hacks, specifically targeting popular games like Coin Master and Roblox. The primary malicious URL, http://netcdn.tw/app/406889139/free-spins-coin-master-apple-game-hack, is likely a redirector to a site that hosts malware or attempts further social engineering. The ML classifier also strongly indicated maliciousness.

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/free-spins-coin-master-apple-game-hack PDF link annotation
- https://www.maximabm.com/uploaded_files/userfiles/files/how-to-hack-someones-acconut-on-roblox_GM431946152.pdfIn PDF document text
- https://www.maximabm.com/uploaded_files/userfiles/files/free-robux-for-kids_GM431946152.pdfIn PDF document text
- https://maximabm.com/uploaded_files/userfiles/files/how-to-make-everything-free-on-roblox-2021_GM431946152.pdfIn PDF document text
- https://www.maximabm.com/uploaded_files/userfiles/files/coin-master-free-coins-and-spins-group_GM406889139.pdfIn PDF document text
- https://www.maximabm.com/uploaded_files/userfiles/files/reedem-roblox-cards-free-codes_GM431946152.pdfIn PDF document text
- https://maximabm.com/uploaded_files/userfiles/files/minecraft-pe-hack-client_GM479516143.pdfIn PDF document text
- https://www.maximabm.com/uploaded_files/userfiles/files/minecraft-pe-015-0-apk-free-download_GM479516143.pdfIn PDF document text
- https://www.maximabm.com/uploaded_files/userfiles/files/minecraft-client-download_GM479516143.pdfIn PDF document text
- https://www.maximabm.com/uploaded_files/userfiles/files/royalty-free-music-one-sirius-beats-roblox-id_GM431946152.pdfIn PDF document text
- https://www.maximabm.com/uploaded_files/userfiles/files/infinte-jump-hack-roblox_GM431946152.pdfIn PDF document text
- https://www.maximabm.com/uploaded_files/userfiles/files/how-do-you-get-roblox-money_GM431946152.pdfIn PDF document text
- https://www.maximabm.com/uploaded_files/userfiles/files/free-roblox-birthday-banner_GM431946152.pdfIn PDF document text
- https://maximabm.com/uploaded_files/userfiles/files/roblox-phantom-forces-hack_GM431946152.pdfIn PDF document text
- https://www.maximabm.com/uploaded_files/userfiles/files/free-spins-and-coins-coin-master-2021-link_GM406889139.pdfIn PDF document text
- https://maximabm.com/uploaded_files/userfiles/files/free-robux-no-verification-on-laptop_GM431946152.pdfIn PDF document text
- https://www.maximabm.com/uploaded_files/userfiles/files/how-to-get-unlimited-money-i-roblox-hack_GM431946152.pdfIn PDF document text
- https://maximabm.com/uploaded_files/userfiles/files/free-daily-spins-coin-master-2021_GM406889139.pdfIn PDF document text
- https://www.maximabm.com/uploaded_files/userfiles/files/coin-master-daily-link_GM406889139.pdfIn PDF document text
- https://www.maximabm.com/uploaded_files/userfiles/files/daily-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.maximabm.com/uploaded_files/userfiles/files/http-rbgenappzoneteamcom-roblox-hack_GM431946152.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_off0000315c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x315C	22600 bytes
SHA-256: `9806be87af705cc73926d13d0fea7e7ccd300c1b90f1150f923512428e57d4ef`
`font_01_sfnt_off000063b9.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x63B9	18248 bytes
SHA-256: `5fc4058085e688ccbd2e279a6fdf32c136df5194189f80f266052c2afd8c01d6`

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