PDF malware analysis — malicious · 454672a50bb593cd

MALICIOUS

PDF

46.3 KB Created: 2021-05-12 20:36:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02

MD5: e61b951d419018e39024af89c48c9ffb SHA-1: d888453a3100be09caeeba27ca9b45f98cf6afc8 SHA-256: 454672a50bb593cdea2e0ad8d3ddc5574a30cf877d664ae0d986efa9ae646ff8

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 0.8696

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 https://netcdn.xyz/app/406889139/coin-master-hacks-for-gold-cards-game-hack PDF link annotation
- http://polycraft.ae/uploaded_files/userfiles/files/get-robux_GM431946152.pdfIn PDF document text
- http://polycraft.ae/uploaded_files/userfiles/files/coin-master-jackpot-hack_GM406889139.pdfIn PDF document text
- http://polycraft.ae/uploaded_files/userfiles/files/robux-withdraw_GM431946152.pdfIn PDF document text
- http://polycraft.ae/uploaded_files/userfiles/files/coin-master-free-stuff_GM406889139.pdfIn PDF document text
- http://polycraft.ae/uploaded_files/userfiles/files/get-robux-com_GM431946152.pdfIn PDF document text
- http://polycraft.ae/uploaded_files/userfiles/files/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
- http://polycraft.ae/uploaded_files/userfiles/files/how-to-get-hacks-on-minecraft_GM479516143.pdfIn PDF document text
- http://polycraft.ae/uploaded_files/userfiles/files/daily-coin-master-free-spin-link-facebook_GM406889139.pdfIn PDF document text
- http://polycraft.ae/uploaded_files/userfiles/files/hack-roblox-players_GM431946152.pdfIn PDF document text
- http://polycraft.ae/uploaded_files/userfiles/files/how-to-download-minecraft-java-edition-for-free_GM479516143.pdfIn PDF document text
- http://polycraft.ae/uploaded_files/userfiles/files/free-spin-coin-master-online_GM406889139.pdfIn PDF document text
- http://polycraft.ae/uploaded_files/userfiles/files/regal-world-coin-master_GM406889139.pdfIn PDF document text
- http://polycraft.ae/uploaded_files/userfiles/files/coin-master-hack-app-link_GM406889139.pdfIn PDF document text
- http://polycraft.ae/uploaded_files/userfiles/files/coin-master-mod-version-free-download-ios_GM406889139.pdfIn PDF document text
- http://polycraft.ae/uploaded_files/userfiles/files/coin-master-tiradas-gratis-link_GM406889139.pdfIn PDF document text
- http://polycraft.ae/uploaded_files/userfiles/files/coin-master-free-spins-apk_GM406889139.pdfIn PDF document text
- http://polycraft.ae/uploaded_files/userfiles/files/gameoffice-net-hack-coin-master_GM406889139.pdfIn PDF document text
- http://polycraft.ae/uploaded_files/userfiles/files/free-daily-spins-coin-master-2021_GM406889139.pdfIn PDF document text
- http://polycraft.ae/uploaded_files/userfiles/files/coin-master-free-spins-link-download-for-iphone_GM406889139.pdfIn PDF document text
- http://polycraft.ae/uploaded_files/userfiles/files/how-to-get-free-robux-without-email_GM431946152.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off00004e50.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4E50	25892 bytes
SHA-256: `206199998004583ed9c1b8fb1fbfe2811653b53a0b478f1e06bb6fc72b00b365`
`font_01_sfnt_off00008951.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8951	2896 bytes
SHA-256: `c1a618813a64314343402b2ec738fc11c4c912460a4c7ae3029924d2f9a229cd`
`font_02_sfnt_off00009337.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9337	18128 bytes
SHA-256: `92f67a8595df518c209bc74471438c0bfca827f3a9f1725b2b2b65898affb2c4`

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