PDF malware analysis — malicious · b49ef66b0ca26757

MALICIOUS

PDF

44.7 KB Created: 2021-05-11 12:50:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05

MD5: c93d1844cfd72d602950dfadc87f4b2a SHA-1: e49f2857e07036304447b56de5942978710db6b7 SHA-256: b49ef66b0ca26757dac227b54fa3407f581f29fafa5d96efd3117ef43229edb2

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 0.9632

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/431946152/roblox-hack-ga-game-hack PDF link annotation
- http://techmobil.pl/images/coin-master-hack-without-verify_GM406889139.pdfIn PDF document text
- http://techmobil.pl/images/free-spins-and-coins-coin-master-2021-link_GM406889139.pdfIn PDF document text
- http://techmobil.pl/images/free-robux-glitch_GM431946152.pdfIn PDF document text
- http://techmobil.pl/images/coin-master-free-spins-hack-2021_GM406889139.pdfIn PDF document text
- http://techmobil.pl/images/coin-master-free-account_GM406889139.pdfIn PDF document text
- http://techmobil.pl/images/how-to-get-free-spins-on-coin-master-2021-ios_GM406889139.pdfIn PDF document text
- http://techmobil.pl/images/how-to-get-free-robux-instantly_GM431946152.pdfIn PDF document text
- http://techmobil.pl/images/minecraft-bedrock-edition-hacks_GM479516143.pdfIn PDF document text
- http://techmobil.pl/images/coin-master-hack-2021-ios_GM406889139.pdfIn PDF document text
- http://techmobil.pl/images/www-free-robux_GM431946152.pdfIn PDF document text
- http://techmobil.pl/images/coin-master-gold-cards-free_GM406889139.pdfIn PDF document text
- http://techmobil.pl/images/robuxy-com-free-robux_GM431946152.pdfIn PDF document text
- http://techmobil.pl/images/coin-master-how-to-get-free-pet-food_GM406889139.pdfIn PDF document text
- http://techmobil.pl/images/free-minecraft-hosting-24-7_GM479516143.pdfIn PDF document text
- http://techmobil.pl/images/how-to-make-a-server-in-minecraft-java-for-free_GM479516143.pdfIn PDF document text
- http://techmobil.pl/images/coin-master-free-spins-app_GM406889139.pdfIn PDF document text
- http://techmobil.pl/images/roblox-april-fools-hack_GM431946152.pdfIn PDF document text
- http://techmobil.pl/images/coin-master-free-spin-daily-link_GM406889139.pdfIn PDF document text
- http://techmobil.pl/images/free-robux-generator_GM431946152.pdfIn PDF document text
- http://techmobil.pl/images/rbx-free-robux_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_off0000489e.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x489E	25108 bytes
SHA-256: `dd8c46b3a4cef6d605be08b5f6dc1c423b09c5a1de6b8e30a37b5ea66f890076`
`font_01_sfnt_off000082a8.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x82A8	2852 bytes
SHA-256: `e9630f3bb738ae3bc329a423cf069c8035d70ce2227e3557c42815f85ad3284f`
`font_02_sfnt_off00008c6a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8C6A	18184 bytes
SHA-256: `3275d650180bfb45a9fb7d5756aac43dcbbafe87c7818dab7a1b2e1f44194404`

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