PDF malware analysis — malicious · d9029197af3a5ff2

MALICIOUS

PDF

44.7 KB Created: 2021-06-03 08:45:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02

MD5: 92f96994c561878de1e974ee1f48ca77 SHA-1: fe1859478e887f1d8ca35b3db0ff6463ea1f7e3d SHA-256: d9029197af3a5ff23942a76b83a4f8f4a3f99859a00f8d16519d03fd9d615073

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 0.9865

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.online/app/406889139/100-free-spins-for-coin-master-game-hack PDF link annotation
- http://www.pustakaekspresi.com/new/public/ckfinder/userfiles/files/free-spin-link-for-coin-master-game_GM406889139.pdfIn PDF document text
- http://www.pustakaekspresi.com/new/public/ckfinder/userfiles/files/buy-robux-free_GM431946152.pdfIn PDF document text
- http://www.pustakaekspresi.com/new/public/ckfinder/userfiles/files/minecraft-online-free-download_GM479516143.pdfIn PDF document text
- http://www.pustakaekspresi.com/new/public/ckfinder/userfiles/files/coin-master-free-spins-haktuts_GM406889139.pdfIn PDF document text
- http://www.pustakaekspresi.com/new/public/ckfinder/userfiles/files/coin-master-free-spin-game_GM406889139.pdfIn PDF document text
- http://www.pustakaekspresi.com/new/public/ckfinder/userfiles/files/coin-master-apk-hack-2021_GM406889139.pdfIn PDF document text
- http://www.pustakaekspresi.com/new/public/ckfinder/userfiles/files/tiktok-free-80_GM835599320.pdfIn PDF document text
- http://www.pustakaekspresi.com/new/public/ckfinder/userfiles/files/coinmasterhack-club_GM406889139.pdfIn PDF document text
- http://www.pustakaekspresi.com/new/public/ckfinder/userfiles/files/robux-hack-2021_GM431946152.pdfIn PDF document text
- http://www.pustakaekspresi.com/new/public/ckfinder/userfiles/files/free-tiktok-fans_GM835599320.pdfIn PDF document text
- http://www.pustakaekspresi.com/new/public/ckfinder/userfiles/files/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
- http://www.pustakaekspresi.com/new/public/ckfinder/userfiles/files/aimbot-download-roblox_GM431946152.pdfIn PDF document text
- http://www.pustakaekspresi.com/new/public/ckfinder/userfiles/files/haktuts-2021-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
- http://www.pustakaekspresi.com/new/public/ckfinder/userfiles/files/free-spins-on-coin-master_GM406889139.pdfIn PDF document text
- http://www.pustakaekspresi.com/new/public/ckfinder/userfiles/files/minecraft-116-free-download_GM479516143.pdfIn PDF document text
- http://www.pustakaekspresi.com/new/public/ckfinder/userfiles/files/minecraft-gun-games-free_GM479516143.pdfIn PDF document text
- http://www.pustakaekspresi.com/new/public/ckfinder/userfiles/files/roblox-hacks-for-mac_GM431946152.pdfIn PDF document text
- http://www.pustakaekspresi.com/new/public/ckfinder/userfiles/files/free-tiktok-followers-and-likes_GM835599320.pdfIn PDF document text
- http://www.pustakaekspresi.com/new/public/ckfinder/userfiles/files/but-link-says-free-robux_GM431946152.pdfIn PDF document text
- http://www.pustakaekspresi.com/new/public/ckfinder/userfiles/files/free-spins-and-coins-coin-master-2021-link_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
`stream_004_off00005455.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x5455	24544 bytes
SHA-256: `375c50d9260813adbd90d7babd13926e9ffbb84af8b995c27373c105969a5ddb`
`font_01_sfnt_off00008cc1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8CC1	18164 bytes
SHA-256: `7606299dfa9380825ccbbaa06a4275f303ebe4faec3a3444b55fb030233e8f05`

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