PDF malware analysis — malicious · 1e73b3cb7b6341ef

MALICIOUS

PDF

35.1 KB Created: 2021-06-18 03:24:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 81df2790124d5cceb62fe5505254b3a1 SHA-1: 226f6e92c37c1b9cd86459974b4613adc04545ae SHA-256: 1e73b3cb7b6341ef036c4836c91f60f8202203d04e0ee6350ecf1fa3f05d212a

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/free-roblox-promo-codes-2021-may-game-hack PDF link annotation
- https://www.devries-group.de/images/how-to-hack-money-in-any-roblox-game_GM431946152.pdfIn PDF document text
- https://www.devries-group.de/images/roblox-bad-business-hack-speedrun_GM431946152.pdfIn PDF document text
- https://www.devries-group.de/images/coin-master-computer-hack_GM406889139.pdfIn PDF document text
- https://www.devries-group.de/images/how-to-minecraft-for-free_GM479516143.pdfIn PDF document text
- https://www.devries-group.de/images/coin-master-free-spin-daily-link_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/free-robux-without-verify_GM431946152.pdfIn PDF document text
- https://www.devries-group.de/images/minecraft-hacks-wurst_GM479516143.pdfIn PDF document text
- https://www.devries-group.de/images/free-robux-no-human-verification-2021-no-survey_GM431946152.pdfIn PDF document text
- https://www.devries-group.de/images/free-robux-cheat-engine_GM431946152.pdfIn PDF document text
- https://www.devries-group.de/images/how-to-get-free-robux-com_GM431946152.pdfIn PDF document text
- https://www.devries-group.de/images/free-spins-for-coin-master-app_GM406889139.pdfIn PDF document text
- https://www.devries-group.de/images/roblox-free-followers_GM431946152.pdfIn PDF document text
- https://www.devries-group.de/images/codes-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.devries-group.de/images/free-free-robux_GM431946152.pdfIn PDF document text
- https://www.devries-group.de/images/i-robux_GM431946152.pdfIn PDF document text
- https://www.devries-group.de/images/free-roebucks-com_GM431946152.pdfIn PDF document text
- https://www.devries-group.de/images/free-scripts-for-roblox-exploit_GM431946152.pdfIn PDF document text
- https://www.devries-group.de/images/coin-master-hack-version-download-2021-android_GM406889139.pdfIn PDF document text
- https://www.devries-group.de/images/minecraft-free-download-iphone_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
`font_00_sfnt_off000030c6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x30C6	22192 bytes
SHA-256: `bb16648ea4ff392f483139313192848bf259b6ef966d8962949e98a5e802a972`
`font_01_sfnt_off000061a9.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x61A9	19828 bytes
SHA-256: `0aa7bb474cfd11306b865cfed7a40ef0fb9c1c5d2be40d30b2e8e53d2faef65e`

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