PDF malware analysis — malicious · a16ea53bfbf5b9ae

MALICIOUS

PDF

34.5 KB Created: 2021-07-08 23:20:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01

MD5: 7ab5ec9c5c9bd54e2b50b12361abdf3a SHA-1: 075845b8fde273c41526a78b1fc94081b242be65 SHA-256: a16ea53bfbf5b9ae3fbaca01c5b3bdbb5bd26d0a949cc028d17d24ba59373b5c

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/how-to-hack-coin-master-game-hack PDF link annotation
- https://man2samarinda.com/__statics/gudangsoal/files/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
- https://man2samarinda.com/__statics/gudangsoal/files/free-robux-gift-card-codes-2021_GM431946152.pdfIn PDF document text
- https://man2samarinda.com/__statics/gudangsoal/files/free-spins-coin-master-2021-app_GM406889139.pdfIn PDF document text
- https://man2samarinda.com/__statics/gudangsoal/files/how-to-get-free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
- https://man2samarinda.com/__statics/gudangsoal/files/free-robux-trick-deutsch_GM431946152.pdfIn PDF document text
- https://man2samarinda.com/__statics/gudangsoal/files/free-headless-glitch-roblox_GM431946152.pdfIn PDF document text
- https://www.man2samarinda.com/__statics/gudangsoal/files/coin-master-spins-and-coins_GM406889139.pdfIn PDF document text
- https://man2samarinda.com/__statics/gudangsoal/files/free-robux-codes-no-verification_GM431946152.pdfIn PDF document text
- https://man2samarinda.com/__statics/gudangsoal/files/free-roblox-clothes-girl_GM431946152.pdfIn PDF document text
- https://www.man2samarinda.com/__statics/gudangsoal/files/free-spin-coin-master-link-2021_GM406889139.pdfIn PDF document text
- https://www.man2samarinda.com/__statics/gudangsoal/files/bloxpage-free-robux_GM431946152.pdfIn PDF document text
- https://www.man2samarinda.com/__statics/gudangsoal/files/free-limiteds-roblox_GM431946152.pdfIn PDF document text
- https://man2samarinda.com/__statics/gudangsoal/files/killing-simulator-roblox-no-cheat_GM431946152.pdfIn PDF document text
- https://www.man2samarinda.com/__statics/gudangsoal/files/free-minecraft-wallpaper_GM479516143.pdfIn PDF document text
- https://www.man2samarinda.com/__statics/gudangsoal/files/coin-master-free-spins-and-coins-daily-links_GM406889139.pdfIn PDF document text
- https://www.man2samarinda.com/__statics/gudangsoal/files/how-to-play-piano-roblox-cheat_GM431946152.pdfIn PDF document text
- https://man2samarinda.com/__statics/gudangsoal/files/free-robux-generator-without-human-verification_GM431946152.pdfIn PDF document text
- https://man2samarinda.com/__statics/gudangsoal/files/how-to-get-free-admin-in-roblox_GM431946152.pdfIn PDF document text
- https://www.man2samarinda.com/__statics/gudangsoal/files/minecraft-hack-download_GM479516143.pdfIn PDF document text
- https://www.man2samarinda.com/__statics/gudangsoal/files/minecraft-download-free-download_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
`stream_002_off000031ae.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x31AE	22704 bytes
SHA-256: `5125c1d18a9365574e5fecae72249513d339ba3f2fda8c3d70c0e709cf743ca8`
`font_01_sfnt_off00006489.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6489	18168 bytes
SHA-256: `2bd458773159c42ddb973016f08b2d4d6bea9039625adade8827a8f393a5a95a`

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