PDF malware analysis — malicious · e9a00cbdcae628bd

MALICIOUS

PDF

45.3 KB Created: 2021-06-11 10:22:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 0b943b2d39740788bc800f62bade7b70 SHA-1: 224356bf185f1b971fb0bd0e2a051e91a1d4ee22 SHA-256: e9a00cbdcae628bd8b1defe331f75424449cc702cf79d9e2873ce24c1291fe42

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 0.9864

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.tw/app/431946152/roblox-free-items-2021-game-hack PDF link annotation
- http://perpus.polimarim.online/repository/coin-master-daily-gift-free-spins-and-coins-link_GM406889139.pdfIn PDF document text
- http://perpus.polimarim.online/repository/how-to-win-free-robux_GM431946152.pdfIn PDF document text
- http://perpus.polimarim.online/repository/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
- http://perpus.polimarim.online/repository/how-can-i-get-free-robux_GM431946152.pdfIn PDF document text
- http://perpus.polimarim.online/repository/robux-promo-codes-2021-no-hack_GM431946152.pdfIn PDF document text
- http://perpus.polimarim.online/repository/coin-master-hack-without-verification-2021_GM406889139.pdfIn PDF document text
- http://perpus.polimarim.online/repository/free-roblox-money-for-money_GM431946152.pdfIn PDF document text
- http://perpus.polimarim.online/repository/hacking-apps-for-roblox_GM431946152.pdfIn PDF document text
- http://perpus.polimarim.online/repository/coin-master-tiradas-gratis-2021_GM406889139.pdfIn PDF document text
- http://perpus.polimarim.online/repository/coin-mster-free_GM406889139.pdfIn PDF document text
- http://perpus.polimarim.online/repository/free-roblox-toy-codes_GM431946152.pdfIn PDF document text
- http://perpus.polimarim.online/repository/impact-minecraft-hack_GM479516143.pdfIn PDF document text
- http://perpus.polimarim.online/repository/free-coins-and-spins-coin-master_GM406889139.pdfIn PDF document text
- http://perpus.polimarim.online/repository/coin-master-daily-free-spin-app_GM406889139.pdfIn PDF document text
- http://perpus.polimarim.online/repository/real-coin-master-hacks_GM406889139.pdfIn PDF document text
- http://perpus.polimarim.online/repository/inject-hack-free-robux_GM431946152.pdfIn PDF document text
- http://perpus.polimarim.online/repository/coin-master-free-cards_GM406889139.pdfIn PDF document text
- http://perpus.polimarim.online/repository/minecraft-education-edition-free-download_GM479516143.pdfIn PDF document text
- http://perpus.polimarim.online/repository/roblox-studio-free-download_GM431946152.pdfIn PDF document text
- http://perpus.polimarim.online/repository/minecraft-tools_GM479516143.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_off00005143.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x5143	26484 bytes
SHA-256: `d7e1444fefb22708d3c2bfbf1452136560b1cee4f8bd7f3bc5b3a38a0250768f`
`font_01_sfnt_off00008d42.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8D42	18716 bytes
SHA-256: `1ac7dfea826aa1cf6bdd8a8871d75981f44760a1c5f47be9d1d913bfc788d2a8`

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