PDF malware analysis — malicious · ddda7c6b6cb64cf4

MALICIOUS

PDF

35.3 KB Created: 2021-07-04 04:10:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04

MD5: 7168cf531daddc2da7ba8cb6096cbc56 SHA-1: df4ad30d16ff1f397fe103cdb5c17b555d3c71bf SHA-256: ddda7c6b6cb64cf41d02ce17c8ff8fa2cf9bcf6f9530197016a28c680969bc63

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to known malicious infrastructure, specifically promoting 'free generator / game hack' lures. The document body and embedded URLs strongly suggest a phishing or scam attempt, likely aiming to trick users into visiting malicious sites. No scripts were extracted, but the presence of embedded URLs and the ML classification indicate a high likelihood of malicious intent.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 4

PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK

PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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
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/431946152/is-it-possible-to-get-free-robux-game-hack In PDF document text
- http://balishakirana.com/new/public/ckfinder/userfiles/files/coin-master-twitter_GM406889139.pdfIn PDF document text
- http://balishakirana.com/new/public/ckfinder/userfiles/files/free-robux-hack-us_GM431946152.pdfIn PDF document text
- http://balishakirana.com/new/public/ckfinder/userfiles/files/roblox-arsenal-hack-script-pastebin_GM431946152.pdfIn PDF document text
- http://balishakirana.com/new/public/ckfinder/userfiles/files/coin-master-strategy_GM406889139.pdfIn PDF document text
- http://balishakirana.com/new/public/ckfinder/userfiles/files/giftrobux-com-generator_GM431946152.pdfIn PDF document text
- http://balishakirana.com/new/public/ckfinder/userfiles/files/can-free-models-make-your-game-lag-on-roblox_GM431946152.pdfIn PDF document text
- http://balishakirana.com/new/public/ckfinder/userfiles/files/www-robux_GM431946152.pdfIn PDF document text
- http://balishakirana.com/new/public/ckfinder/userfiles/files/free-daily-spins-coin-master_GM406889139.pdfIn PDF document text
- http://balishakirana.com/new/public/ckfinder/userfiles/files/free-roblox-accounts-with-passwords-and-robux_GM431946152.pdfIn PDF document text
- http://balishakirana.com/new/public/ckfinder/userfiles/files/free-shirt-roblox_GM431946152.pdfIn PDF document text
- http://balishakirana.com/new/public/ckfinder/userfiles/files/minecraft-pe-free-download_GM479516143.pdfIn PDF document text
- http://balishakirana.com/new/public/ckfinder/userfiles/files/como-hackear-coin-master-iphone_GM406889139.pdfIn PDF document text
- http://balishakirana.com/new/public/ckfinder/userfiles/files/how-to-get-free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
- http://balishakirana.com/new/public/ckfinder/userfiles/files/how-to-hack-coin-master-spin-in-hindi_GM406889139.pdfIn PDF document text
- http://balishakirana.com/new/public/ckfinder/userfiles/files/how-to-download-roblox-walk-through-walls-hack_GM431946152.pdfIn PDF document text
- http://balishakirana.com/new/public/ckfinder/userfiles/files/coin-master-hack-tool-apk-download_GM406889139.pdfIn PDF document text
- http://balishakirana.com/new/public/ckfinder/userfiles/files/roblox-free-clothes-generator_GM431946152.pdfIn PDF document text
- http://balishakirana.com/new/public/ckfinder/userfiles/files/coin-master-link_GM406889139.pdfIn PDF document text
- http://balishakirana.com/new/public/ckfinder/userfiles/files/pubg-uc-cheap_GM1330123889.pdfIn PDF document text
- http://balishakirana.com/new/public/ckfinder/userfiles/files/coin-master-free-spin-and-coin_GM406889139.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_off000030c6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x30C6	22968 bytes
SHA-256: `8e5036f9cf1f09bd3a87f24be9ac697c196ef61d9692d83afcafc881e88fcf2d`
`font_01_sfnt_off00006496.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6496	19168 bytes
SHA-256: `f24a5ada971d965804af58b04ee5b9b6367f2e4ca5c866edee18a0a4d3da7d81`

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