PDF malware analysis — malicious · 5b3abe19a19d612e

MALICIOUS

PDF

34.8 KB Created: 2021-07-03 22:41:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18

MD5: d1cbc5335732fe7b7cbdb183b90a32e2 SHA-1: a9af63f6df6e1c81bd0d2adf2cf9e6f91e94a6c2 SHA-256: 5b3abe19a19d612edcab5bedcd5ba2bf1a1e3636b713d364f27a1edead08cef2

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-free-master-game-hack PDF link annotation
- https://www.solararabialtd.com/uploaded_files/userfiles/files/minecraft-net-download-free_GM479516143.pdfIn PDF document text
- https://www.solararabialtd.com/uploaded_files/userfiles/files/roblox-robux-hack_GM431946152.pdfIn PDF document text
- https://www.solararabialtd.com/uploaded_files/userfiles/files/free-robux-giveaway-everyone-will-get-robux-proof_GM431946152.pdfIn PDF document text
- https://www.solararabialtd.com/uploaded_files/userfiles/files/robux-hack-2021_GM431946152.pdfIn PDF document text
- https://www.solararabialtd.com/uploaded_files/userfiles/files/wwwcoin-master-hack-apk_GM406889139.pdfIn PDF document text
- https://www.solararabialtd.com/uploaded_files/userfiles/files/how-to-hack-a-roblox-account-easy_GM431946152.pdfIn PDF document text
- https://www.solararabialtd.com/uploaded_files/userfiles/files/coin-master-free-spins-2021-today_GM406889139.pdfIn PDF document text
- https://www.solararabialtd.com/uploaded_files/userfiles/files/moonactive-coin-master-free-spins_GM406889139.pdfIn PDF document text
- https://www.solararabialtd.com/uploaded_files/userfiles/files/minecraft-apk-free-download-016-0_GM479516143.pdfIn PDF document text
- https://www.solararabialtd.com/uploaded_files/userfiles/files/free-spin-coin-master-2021-link_GM406889139.pdfIn PDF document text
- https://www.solararabialtd.com/uploaded_files/userfiles/files/coin-master-coins-free_GM406889139.pdfIn PDF document text
- https://www.solararabialtd.com/uploaded_files/userfiles/files/without-pokemon-go-free-evolution_GM1094591345.pdfIn PDF document text
- https://www.solararabialtd.com/uploaded_files/userfiles/files/tiktok-like-bot-free_GM835599320.pdfIn PDF document text
- https://www.solararabialtd.com/uploaded_files/userfiles/files/how-to-make-a-server-in-minecraft-java-for-free_GM479516143.pdfIn PDF document text
- https://www.solararabialtd.com/uploaded_files/userfiles/files/free-rare-cards-for-coin-master-christmas_GM406889139.pdfIn PDF document text
- https://www.solararabialtd.com/uploaded_files/userfiles/files/best-free-minecraft-hacked-client_GM479516143.pdfIn PDF document text
- https://www.solararabialtd.com/uploaded_files/userfiles/files/pastebin-roblox-items-free_GM431946152.pdfIn PDF document text
- https://www.solararabialtd.com/uploaded_files/userfiles/files/how-to-get-free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
- https://www.solararabialtd.com/uploaded_files/userfiles/files/coin-master-apk-hack-mod-download_GM406889139.pdfIn PDF document text
- https://www.solararabialtd.com/uploaded_files/userfiles/files/buy-tiktok-followers-free_GM835599320.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_off0000331f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x331F	22800 bytes
SHA-256: `35ebd1b930a5d68d40c66838e3b3dceb286439652708b2bc078cd44c9426511e`
`font_01_sfnt_off0000666f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x666F	17996 bytes
SHA-256: `bf578f527c18d7e48f73a9cd7a871d764ef0a45aefce568ff80db22f3a343b08`

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