PDF malware analysis — malicious · f3e2c487302aab6f

MALICIOUS

PDF

34.6 KB Created: 2021-07-04 06:03:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: f7786e4b8fb04f8449bd777f5ff2939b SHA-1: 6d52f04364c28c6a21f47dbfd2eab991f8d0cc31 SHA-256: f3e2c487302aab6fdc4ff6eab01f9f58d961ea9ef75dbdc775d781b2d6b27105

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document employs a common lure of offering game hacks and unlimited in-game currency to entice users into clicking a link. The primary link, http://netcdn.tw/app/406889139/coin-master-unlimited-spins-game-hack, is identified as a redirector to potentially malicious content. The document's structure and the presence of embedded URLs strongly suggest a phishing or scamming attempt, likely delivered as a spearphishing attachment.

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-spins-game-hack PDF link annotation
- https://goodtools.tw/upload/files/dora-creates-a-free-robux-scam_GM431946152.pdfIn PDF document text
- https://goodtools.tw/upload/files/coin-master-free-spin-and-coins-links-home_GM406889139.pdfIn PDF document text
- https://goodtools.tw/upload/files/how-do-you-get-free-roblox_GM431946152.pdfIn PDF document text
- https://goodtools.tw/upload/files/free-spins-on-coin-master-game_GM406889139.pdfIn PDF document text
- https://goodtools.tw/upload/files/roblox-hack-2021-aout_GM431946152.pdfIn PDF document text
- https://goodtools.tw/upload/files/archery-master-3d-coins-hack_GM406889139.pdfIn PDF document text
- https://goodtools.tw/upload/files/free-roblox-clothes-2021_GM431946152.pdfIn PDF document text
- https://goodtools.tw/upload/files/coin-master-free-spins-cheats_GM406889139.pdfIn PDF document text
- https://goodtools.tw/upload/files/free-robux-kid-friendly_GM431946152.pdfIn PDF document text
- https://goodtools.tw/upload/files/minecraft-free-ios_GM479516143.pdfIn PDF document text
- https://goodtools.tw/upload/files/how-to-hack-points-on-roblox_GM431946152.pdfIn PDF document text
- https://goodtools.tw/upload/files/free-tiktok-video_GM835599320.pdfIn PDF document text
- https://goodtools.tw/upload/files/how-to-get-free-robux-without-verification_GM431946152.pdfIn PDF document text
- https://goodtools.tw/upload/files/free-robux-today-pc_GM431946152.pdfIn PDF document text
- https://goodtools.tw/upload/files/the-cheat-for-roblox_GM431946152.pdfIn PDF document text
- https://goodtools.tw/upload/files/free-app-download-robux-genurater-on-pc_GM431946152.pdfIn PDF document text
- https://goodtools.tw/upload/files/was-minecraft-ever-free_GM479516143.pdfIn PDF document text
- https://goodtools.tw/upload/files/com-roblox_GM431946152.pdfIn PDF document text
- https://goodtools.tw/upload/files/free-roblox-toy-codes-2021_GM431946152.pdfIn PDF document text
- https://goodtools.tw/upload/files/hack-coin-master-android-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_off000030f3.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x30F3	22572 bytes
SHA-256: `aa9941f8bf9e6f4fe493b96c94ccf488b2ffc46702d0ffb1e8b1dc2417125df2`
`font_01_sfnt_off0000633a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x633A	18704 bytes
SHA-256: `2e8c7de27f3ba86e55e5e355ae95bc495c43d663aeff332330d22d9f8881b6ba`

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