PDF malware analysis — malicious · d208227e7f624dbe

MALICIOUS

PDF

33.7 KB Created: 2021-07-04 03:31:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 98ccbea0abed597f140027c520941d00 SHA-1: b1373e5e84ef89707dab4f2425dd5b8413ae5073 SHA-256: d208227e7f624dbe0876cdbebaf9c633b5a421308d159bdc38eaac26706909b9

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-game-hack-link-game-hack PDF link annotation
- https://ourlady-elearning.com/userfiles/files/how-to-hack-blox-watch-on-roblox_GM431946152.pdfIn PDF document text
- https://ourlady-elearning.com/userfiles/files/coin-master-70-spin-link-today_GM406889139.pdfIn PDF document text
- https://ourlady-elearning.com/userfiles/files/free-free-roblox-games_GM431946152.pdfIn PDF document text
- https://ourlady-elearning.com/userfiles/files/coin-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
- https://ourlady-elearning.com/userfiles/files/coin-master-links-free-spins_GM406889139.pdfIn PDF document text
- https://ourlady-elearning.com/userfiles/files/pokemon-go-free-coins-hack-2021_GM1094591345.pdfIn PDF document text
- https://ourlady-elearning.com/userfiles/files/how-to-get-free-robux-by-playing-games_GM431946152.pdfIn PDF document text
- https://ourlady-elearning.com/userfiles/files/free-spins-on-coin-master-link_GM406889139.pdfIn PDF document text
- https://ourlady-elearning.com/userfiles/files/robux-free-robux_GM431946152.pdfIn PDF document text
- https://ourlady-elearning.com/userfiles/files/roblox-free-bag-goku_GM431946152.pdfIn PDF document text
- https://ourlady-elearning.com/userfiles/files/hack-master-coin_GM406889139.pdfIn PDF document text
- https://ourlady-elearning.com/userfiles/files/roblox-group-free-robux_GM431946152.pdfIn PDF document text
- https://ourlady-elearning.com/userfiles/files/earn-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
- https://ourlady-elearning.com/userfiles/files/how-to-hack-robux_GM431946152.pdfIn PDF document text
- https://ourlady-elearning.com/userfiles/files/free-builders-club-roblox-2021_GM431946152.pdfIn PDF document text
- https://ourlady-elearning.com/userfiles/files/free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
- https://ourlady-elearning.com/userfiles/files/hack-coin-master-with-lucky-patcher_GM406889139.pdfIn PDF document text
- https://ourlady-elearning.com/userfiles/files/roblox-free-robux-codes_GM431946152.pdfIn PDF document text
- https://ourlady-elearning.com/userfiles/files/coin-master-attack-madness-hack_GM406889139.pdfIn PDF document text
- https://ourlady-elearning.com/userfiles/files/free-coin-master-spins-daily_GM406889139.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_off000030d6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x30D6	21876 bytes
SHA-256: `892f6899268da5a42144f433d9b95a5b02f8d8ec082ca6a1ef6215efe1ba3454`
`font_01_sfnt_off0000610c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x610C	18264 bytes
SHA-256: `c1c21b29a6afb4d06e4d6845aa9afd5500216469eff45eb2d027be7bd9c24dc5`

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