PDF malware analysis — malicious · 4afabb60e906f8e2

MALICIOUS

PDF

33.4 KB Created: 2021-07-04 23:53:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: f975d0d1ac39858fc24dba9eb81c1d00 SHA-1: 25cf046d4ed79ec90d37ca6a7e23af0e95b904ac SHA-256: 4afabb60e906f8e2b4365308087b9f73fec99f1b869f69e7a3a2790d6f051157

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains a high-risk heuristic firing for a game hack lure, directing users to a suspicious URL. The document body and embedded URLs reinforce this theme, suggesting a social engineering attempt to trick users into visiting malicious sites. While no scripts were explicitly extracted, the nature of the lure and the embedded URLs indicate a likely attempt to download further malicious content or redirect to a phishing/scam page.

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/431946152/roblox-mobile-hack-game-hack PDF link annotation
- https://dolphintour.vn/images/uploadsfiles/a-lot-of-robux_GM431946152.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/como-hackear-coin-master-iphone_GM406889139.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/free-minecraft-website_GM479516143.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/roblox-free-games-to-play-online_GM431946152.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/roblox36com-free-robux_GM431946152.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/krnl-download_GM431946152.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/coin-master-free-cards_GM406889139.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/runinate-roblox-hack_GM431946152.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/hack-for-roblox-project-pokemon_GM431946152.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/denisdaily-free-robux_GM431946152.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/minecraft-cracked-client_GM479516143.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/coin-master-hack-game-download-ios_GM406889139.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/free-robux-generator-no-verification-2021_GM431946152.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/free-roblox-hack_GM431946152.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/how-to-hack-in-attrition-roblox_GM431946152.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/coin-master-free-spin-daily-link_GM406889139.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/roblox-hack-painis_GM431946152.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/master-coin-free-spin_GM406889139.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/blonde-action-ponytail-roblox-free_GM431946152.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/how-to-hack-robux_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_off00002d82.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2D82	21832 bytes
SHA-256: `4b0bf6808f712c18a6948fe19e7371b11b62903afd0ec8378330ba49b8957003`
`font_01_sfnt_off00005da9.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5DA9	18972 bytes
SHA-256: `0e9155019685f09988e5274749080987783afe0cd242ca2fcc27e9f8310fa0e4`

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