PDF malware analysis — malicious · 085bad98a2d2bf7b

MALICIOUS

PDF

35.0 KB Created: 2021-07-07 23:17:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 27bb3f2c9adc5c40c906a75e803b780d SHA-1: 2e0e01f254a95237181a2c9ab558cd49c8e1e33f SHA-256: 085bad98a2d2bf7badfe8a42244fed48fcbd8f38ddce991945b14891db393a0c

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.tw/app/406889139/coin-master-club-hack-game-hack PDF link annotation
- https://7gking.tw/upload/files/qtx-download-roblox-free_GM431946152.pdfIn PDF document text
- https://7gking.tw/upload/files/elfenprinz01-roblox-hacker_GM431946152.pdfIn PDF document text
- https://7gking.tw/upload/files/free-robux-mobile_GM431946152.pdfIn PDF document text
- https://7gking.tw/upload/files/roblox-assassin-hack-2021-xximortalboyxx_GM431946152.pdfIn PDF document text
- https://7gking.tw/upload/files/roblox-fnaf-rp-how-to-get-free-via-ilovecat123_GM431946152.pdfIn PDF document text
- https://7gking.tw/upload/files/minecraft-hacked-client_GM479516143.pdfIn PDF document text
- https://7gking.tw/upload/files/coin-master-free-cards-link-2021_GM406889139.pdfIn PDF document text
- https://7gking.tw/upload/files/coin-master-hack-2021_GM406889139.pdfIn PDF document text
- https://7gking.tw/upload/files/app-store-roblox-free_GM431946152.pdfIn PDF document text
- https://7gking.tw/upload/files/pokemon-go-freezing_GM1094591345.pdfIn PDF document text
- https://7gking.tw/upload/files/coin-master-free-cards-link_GM406889139.pdfIn PDF document text
- https://7gking.tw/upload/files/roblox-free-robux-website_GM431946152.pdfIn PDF document text
- https://7gking.tw/upload/files/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
- https://7gking.tw/upload/files/infinite-jump-roblox-cheat_GM431946152.pdfIn PDF document text
- https://7gking.tw/upload/files/coin-master-hack-tool-without-verification_GM406889139.pdfIn PDF document text
- https://7gking.tw/upload/files/pokemon-go-free-100-iv-map_GM1094591345.pdfIn PDF document text
- https://7gking.tw/upload/files/free-roblox-clothes-templates_GM431946152.pdfIn PDF document text
- https://7gking.tw/upload/files/free-spin-in-coin-master_GM406889139.pdfIn PDF document text
- https://7gking.tw/upload/files/coin-master-hack-mod-apk-download_GM406889139.pdfIn PDF document text
- https://7gking.tw/upload/files/https-wwwfree-robux-at-http-rex-eu5org_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
`stream_002_off0000310e.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x310E	23452 bytes
SHA-256: `221a00903dfde78d3fec74e0301e6eaaa56427f5da0c8a9c77b31cd0d67a1872`
`font_01_sfnt_off000065f4.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x65F4	18376 bytes
SHA-256: `5a95eb3d2f69f61e796dcf555f218633e102768ce47a72f053ecc396592b668a`

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