PDF malware analysis — malicious · 36863d14627db1a9

MALICIOUS

PDF

45.1 KB Created: 2021-05-13 08:42:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01

MD5: e3757ca8f032d3337f94e3dd6803ab40 SHA-1: e1f16847a4c5d57f8440ba3221c31ce6acfdff28 SHA-256: 36863d14627db1a9065151c27eddc382ec281c78fcd4b1b837775da1ac0dbec1

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 0.9621

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 https://netcdn.xyz/app/406889139/free-spins-in-coin-master-2021-game-hack PDF link annotation
- https://www.devries-group.de/images/get-more-robux_GM431946152.pdfIn PDF document text
- https://www.devries-group.de/images/websites-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.devries-group.de/images/hack-coin-master-android-game_GM406889139.pdfIn PDF document text
- https://www.devries-group.de/images/coin-master-spins-hack-iphone_GM406889139.pdfIn PDF document text
- https://www.devries-group.de/images/coin-master-free-spin-link-today-download_GM406889139.pdfIn PDF document text
- https://www.devries-group.de/images/spins-coin-master_GM406889139.pdfIn PDF document text
- https://www.devries-group.de/images/roblox-zone-free-robux_GM431946152.pdfIn PDF document text
- https://www.devries-group.de/images/roblox-robux-generator_GM431946152.pdfIn PDF document text
- https://www.devries-group.de/images/free-spins_GM406889139.pdfIn PDF document text
- https://www.devries-group.de/images/minecraft-free-no-download_GM479516143.pdfIn PDF document text
- https://www.devries-group.de/images/roblox-free-hair-boy_GM431946152.pdfIn PDF document text
- https://www.devries-group.de/images/coin-master-free-spins-link-download-for-iphone_GM406889139.pdfIn PDF document text
- https://www.devries-group.de/images/free-roblox-hack-us_GM431946152.pdfIn PDF document text
- https://www.devries-group.de/images/i-robux_GM431946152.pdfIn PDF document text
- https://www.devries-group.de/images/robux-prices_GM431946152.pdfIn PDF document text
- https://www.devries-group.de/images/best-free-minecraft-servers_GM479516143.pdfIn PDF document text
- https://www.devries-group.de/images/roblox-login-hack_GM431946152.pdfIn PDF document text
- https://www.devries-group.de/images/coin-master-tricks-and-hacks_GM406889139.pdfIn PDF document text
- https://www.devries-group.de/images/free-robux-come_GM431946152.pdfIn PDF document text
- https://www.devries-group.de/images/get-free-robux-today_GM431946152.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off00004b27.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4B27	24992 bytes
SHA-256: `983045bbd8eba7a4ba4fb7f9fb9c1aacf2d826af65ee4e040bc014a7c80b78f7`
`font_01_sfnt_off000083bf.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x83BF	2880 bytes
SHA-256: `10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132`
`font_02_sfnt_off00008daa.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8DAA	18288 bytes
SHA-256: `875184ae642e109850636143811e44f85c5e94aa46544af5e3834b3aaa47422b`

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