PDF malware analysis — malicious · c9ccfc12d8dc810d

MALICIOUS

PDF

35.0 KB Created: 2021-07-04 05:41:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 8e5500247f36a29126fd76d8a8b7bf67 SHA-1: d9565d492f06bafa106a1db48d8ebf6e1afd8af4 SHA-256: c9ccfc12d8dc810d8e5ec645e80037a3a822756d51d7d972329fb22dde845706

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/479516143/113-hacked-client-game-hack PDF link annotation
- http://www.onusgroup.co.in/uploaded_files/userfiles/files/free-roblox-accounts-pastebin_GM431946152.pdfIn PDF document text
- http://www.onusgroup.co.in/uploaded_files/userfiles/files/websites-that-give-free-robux_GM431946152.pdfIn PDF document text
- http://www.onusgroup.co.in/uploaded_files/userfiles/files/http-hack-roblox_GM431946152.pdfIn PDF document text
- http://www.onusgroup.co.in/uploaded_files/userfiles/files/coin-master-35-16-hack-apk_GM406889139.pdfIn PDF document text
- http://www.onusgroup.co.in/uploaded_files/userfiles/files/game-for-have-a-robux-free_GM431946152.pdfIn PDF document text
- http://www.onusgroup.co.in/uploaded_files/userfiles/files/robux-hack-free-robux_GM431946152.pdfIn PDF document text
- http://www.onusgroup.co.in/uploaded_files/userfiles/files/how-to-hack-roblox-accounts-for-robux_GM431946152.pdfIn PDF document text
- http://www.onusgroup.co.in/uploaded_files/userfiles/files/free-robux-roblox-promo-codes_GM431946152.pdfIn PDF document text
- http://www.onusgroup.co.in/uploaded_files/userfiles/files/how-to-get-free-roblox-gift-cards_GM431946152.pdfIn PDF document text
- http://www.onusgroup.co.in/uploaded_files/userfiles/files/roblox-cheat-codes_GM431946152.pdfIn PDF document text
- http://www.onusgroup.co.in/uploaded_files/userfiles/files/hack-roblox-weight-lifting-simulator-3_GM431946152.pdfIn PDF document text
- http://www.onusgroup.co.in/uploaded_files/userfiles/files/cheat-roblox-2021-lumber-tycoon-2-money_GM431946152.pdfIn PDF document text
- http://www.onusgroup.co.in/uploaded_files/userfiles/files/free-robux-site_GM431946152.pdfIn PDF document text
- http://www.onusgroup.co.in/uploaded_files/userfiles/files/roblox-hack-2021_GM431946152.pdfIn PDF document text
- http://www.onusgroup.co.in/uploaded_files/userfiles/files/free-robux-no-scams-no-verification-just-username-and-amount_GM431946152.pdfIn PDF document text
- http://www.onusgroup.co.in/uploaded_files/userfiles/files/minecraft-build-hacks_GM479516143.pdfIn PDF document text
- http://www.onusgroup.co.in/uploaded_files/userfiles/files/coin-master-free-spins-hack-iphone_GM406889139.pdfIn PDF document text
- http://www.onusgroup.co.in/uploaded_files/userfiles/files/coin-master-cards-hack_GM406889139.pdfIn PDF document text
- http://www.onusgroup.co.in/uploaded_files/userfiles/files/hacks-for-mibile-for-roblox_GM431946152.pdfIn PDF document text
- http://www.onusgroup.co.in/uploaded_files/userfiles/files/roblox-20-package-for-free_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
`font_00_sfnt_off0000335b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x335B	22544 bytes
SHA-256: `67e24409d339129352a607f40c617444b0c2318551c7cf461bf82fcc9a7d790a`
`font_01_sfnt_off00006576.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6576	18552 bytes
SHA-256: `ef98a32cd9899bb2f5d13a0d3319cc41842a5a9b52c3101a5c6f38313512b924`

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