PDF malware analysis — malicious · 56ed0d74ca17707f

MALICIOUS

PDF

34.8 KB Created: 2021-07-09 16:23:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02

MD5: 476aceb558e4f45d0a2d612377ceaa87 SHA-1: 18762ce6926845e364489085039385141d87cbbe SHA-256: 56ed0d74ca17707f4fad34849e7dfd60c5473fdcb8a904d8f378eb36022eb5ca

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-get-free-spins-and-coins-in-coin-master-game-hack PDF link annotation
- http://www.bestbist.com/assets/uploads/pages/files/free-clothes-roblox-hack_GM431946152.pdfIn PDF document text
- http://www.bestbist.com/assets/uploads/pages/files/minecraft-online-free-download_GM479516143.pdfIn PDF document text
- http://www.bestbist.com/assets/uploads/pages/files/coin-master-hacks-xyz_GM406889139.pdfIn PDF document text
- http://www.bestbist.com/assets/uploads/pages/files/coin-master-free-spin-bonus_GM406889139.pdfIn PDF document text
- http://www.bestbist.com/assets/uploads/pages/files/free-draw-roblox-wiki_GM431946152.pdfIn PDF document text
- http://www.bestbist.com/assets/uploads/pages/files/roblox-hack-safe_GM431946152.pdfIn PDF document text
- http://www.bestbist.com/assets/uploads/pages/files/best-free-roblox-executor_GM431946152.pdfIn PDF document text
- http://www.bestbist.com/assets/uploads/pages/files/coin-monster_GM406889139.pdfIn PDF document text
- http://www.bestbist.com/assets/uploads/pages/files/roblox-afk-saber-simulator-hack_GM431946152.pdfIn PDF document text
- http://www.bestbist.com/assets/uploads/pages/files/oprewards-com-free-robux_GM431946152.pdfIn PDF document text
- http://www.bestbist.com/assets/uploads/pages/files/is-minecraft-java-edition-free_GM479516143.pdfIn PDF document text
- http://www.bestbist.com/assets/uploads/pages/files/my-roblox-girlfriend-cheated-on-me_GM431946152.pdfIn PDF document text
- http://www.bestbist.com/assets/uploads/pages/files/a-lot-of-robux_GM431946152.pdfIn PDF document text
- http://www.bestbist.com/assets/uploads/pages/files/hack-coin-master-for-iphone_GM406889139.pdfIn PDF document text
- http://www.bestbist.com/assets/uploads/pages/files/how-to-damage-hack-on-roblox-mad-paintball_GM431946152.pdfIn PDF document text
- http://www.bestbist.com/assets/uploads/pages/files/what-games-on-roblox-give-you-free-robux_GM431946152.pdfIn PDF document text
- http://www.bestbist.com/assets/uploads/pages/files/how-many-levels-in-coin-master_GM406889139.pdfIn PDF document text
- http://www.bestbist.com/assets/uploads/pages/files/roblox-free-robux-no-verification_GM431946152.pdfIn PDF document text
- http://www.bestbist.com/assets/uploads/pages/files/roblox-dominus-free_GM431946152.pdfIn PDF document text
- http://www.bestbist.com/assets/uploads/pages/files/roblox-hack-site_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_off000030c9.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x30C9	23108 bytes
SHA-256: `5cd603e7d55a47a154c69b8c74c201550459a5225f18849b34dcd7ec2f5e977f`
`font_01_sfnt_off0000647e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x647E	18512 bytes
SHA-256: `54df8a09cf421af6cac57c3a8dff085e717b90c55c616740be0d1644a88c75b3`

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