PDF malware analysis — malicious · b30714f96afa8627

MALICIOUS

PDF

34.3 KB Created: 2021-07-03 20:43:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15

MD5: eacf4a24a698843d503460a884c38560 SHA-1: 194e9e34cfec7b23da2566e6d7c82a242b0ffe28 SHA-256: b30714f96afa8627ba9ae32fd43ae9d4956b2cc14a9877e53ddfc7aa05538fc5

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document contains numerous embedded URLs and a DOC BODY that explicitly references hacking tools and game cheats for popular games like Coin Master and Roblox. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external links, suggesting a link farm designed to attract users searching for cheats. The primary URL http://netcdn.tw/app/406889139/how-to-hack-coin-master-game-hack is likely the initial lure, leading to further malicious PDF downloads.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 4

Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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/how-to-hack-coin-master-game-hack PDF link annotation
- https://malungtreks.com/userfiles/files/roblox-mad-city-hack-money-francais_GM431946152.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/hacks-for-design-it-roblox_GM431946152.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/unlimited-free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/codes-roblox-hack-the-bank_GM431946152.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/grabpoints-robux_GM431946152.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/free-robux-hack-no-verification_GM431946152.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/how-to-get-free-food-for-foxy-in-coin-master_GM406889139.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/hack-master-coin-pc_GM406889139.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/legit-free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/easy-roblox-today_GM431946152.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/daily-free-spin-link-in-coin-master_GM406889139.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/how-to-make-a-server-in-minecraft-java-for-free_GM479516143.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/can-u-get-free-robux_GM431946152.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/minecraft-build-hacks_GM479516143.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/coin-master-free-spins-no-survey_GM406889139.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/all-promo-codes-free-robux-2021_GM431946152.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/free-robux-now_GM431946152.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/minecraft-nintendo-switch-digital-code-free_GM479516143.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/coin-master-hack-apk-2021_GM406889139.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/best-minecraft-hacked-client_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
`stream_002_off00003016.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x3016	22984 bytes
SHA-256: `589fc81aeae3cf9e743ccebf4aba6816a95caab4069840246a697193689dd095`
`font_01_sfnt_off000063a9.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x63A9	18168 bytes
SHA-256: `2bd458773159c42ddb973016f08b2d4d6bea9039625adade8827a8f393a5a95a`

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