PDF malware analysis — malicious · 2ffaa11f03fd1859

MALICIOUS

PDF

34.9 KB Created: 2021-06-28 02:49:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: ec8946167c2fa611e0b1deb2d09880cb SHA-1: 29d427ea82f4f631d91245c24053c3313fe96d0f SHA-256: 2ffaa11f03fd18590c7aca3ca26648482c6071107dac220cb30b29b34826fc73

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

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.co/app/431946152/ulgamesresources-com-free-robux-generator-game-hack PDF link annotation
- https://www.devries-group.de/images/roblox-color-name-hack-pastebin_GM431946152.pdfIn PDF document text
- https://www.devries-group.de/images/how-to-get-free-robux-easy-1-munuit_GM431946152.pdfIn PDF document text
- https://www.devries-group.de/images/roblox-strucid-hack-mac_GM431946152.pdfIn PDF document text
- https://www.devries-group.de/images/get-tiktok-followers-free_GM835599320.pdfIn PDF document text
- https://www.devries-group.de/images/free-robux-hack-fast-and-easy_GM431946152.pdfIn PDF document text
- https://www.devries-group.de/images/free-spins-coin-master-2021-today_GM406889139.pdfIn PDF document text
- https://www.devries-group.de/images/roblox-pre-hacked_GM431946152.pdfIn PDF document text
- https://www.devries-group.de/images/coin-master-free-stuff_GM406889139.pdfIn PDF document text
- https://www.devries-group.de/images/free-coins--spins-coin-master_GM406889139.pdfIn PDF document text
- https://www.devries-group.de/images/hackear-coin-master-2021_GM406889139.pdfIn PDF document text
- https://www.devries-group.de/images/hacking-things-to-hack-roblox-gamemodes_GM431946152.pdfIn PDF document text
- https://www.devries-group.de/images/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
- https://www.devries-group.de/images/phoenix-backpack-roblox-free_GM431946152.pdfIn PDF document text
- https://www.devries-group.de/images/coin-master-free-spins-link-2021-blogger_GM406889139.pdfIn PDF document text
- https://www.devries-group.de/images/how-do-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
- https://www.devries-group.de/images/roblox-currency-hack_GM431946152.pdfIn PDF document text
- https://www.devries-group.de/images/coin-master-daily-free-spin-and-coin_GM406889139.pdfIn PDF document text
- https://www.devries-group.de/images/paste-hack-roblox_GM431946152.pdfIn PDF document text
- https://www.devries-group.de/images/free-executor-roblox_GM431946152.pdfIn PDF document text
- https://www.devries-group.de/images/how-to-get-free-robux-2021_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_off0000320f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x320F	22120 bytes
SHA-256: `d81e14fcbe27cc94e25f524b33a2aebe72722f4883a9f66b9c8ae950df2f3102`
`font_01_sfnt_off0000632e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x632E	19152 bytes
SHA-256: `ebc016b40c9598ffabd4f5be84e011f625250f99972bf1d386b189eb3c9ef75f`

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