PDF malware analysis — malicious · 9cea7d42844191eb

MALICIOUS

PDF

35.3 KB Created: 2021-06-28 13:03:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: e5ce5f4e2a795dea21a8ca3ccc0d3bed SHA-1: 499314765a4ddd4590f1febb255fac5953d4ad5f SHA-256: 9cea7d42844191eb52d4a2df1cb4df118ed0f67e7de54b33bb4c568efeb5bf8b

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.co/app/431946152/how-to-have-free-robux-2021-game-hack PDF link annotation
- https://www.knjigebuducnosti.com/files/how-do-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
- https://www.knjigebuducnosti.com/files/how-to-hack-robux_GM431946152.pdfIn PDF document text
- https://www.knjigebuducnosti.com/files/synapse-roblox-free_GM431946152.pdfIn PDF document text
- https://www.knjigebuducnosti.com/files/free-modded-minecraft-server-hosting_GM479516143.pdfIn PDF document text
- https://www.knjigebuducnosti.com/files/how-to-hack-people-on-roblox_GM431946152.pdfIn PDF document text
- https://www.knjigebuducnosti.com/files/free-daily-spins-and-coins-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.knjigebuducnosti.com/files/free-robux-followers_GM431946152.pdfIn PDF document text
- https://www.knjigebuducnosti.com/files/nice-roblox-games-to-hack_GM431946152.pdfIn PDF document text
- https://www.knjigebuducnosti.com/files/robux-free-gift-card_GM431946152.pdfIn PDF document text
- https://www.knjigebuducnosti.com/files/websites-that-give-you-free-robux_GM431946152.pdfIn PDF document text
- https://www.knjigebuducnosti.com/files/coin-master-free-spin-software_GM406889139.pdfIn PDF document text
- https://www.knjigebuducnosti.com/files/cheat-for-roblox-payed_GM431946152.pdfIn PDF document text
- https://www.knjigebuducnosti.com/files/coin-master-hack-root_GM406889139.pdfIn PDF document text
- https://www.knjigebuducnosti.com/files/impact-minecraft-hack_GM479516143.pdfIn PDF document text
- https://www.knjigebuducnosti.com/files/how-to-block-someone-on-coin-master_GM406889139.pdfIn PDF document text
- https://www.knjigebuducnosti.com/files/free-links-to-coin-master_GM406889139.pdfIn PDF document text
- https://www.knjigebuducnosti.com/files/free-tiktok-followers-generator_GM835599320.pdfIn PDF document text
- https://www.knjigebuducnosti.com/files/how-to-get-creative-mode-in-minecraft-server-hack_GM479516143.pdfIn PDF document text
- https://www.knjigebuducnosti.com/files/free-robux-accounts_GM431946152.pdfIn PDF document text
- https://www.knjigebuducnosti.com/files/how-to-get-free-robux-instantly_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_off0000325d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x325D	22152 bytes
SHA-256: `3c064a46888f3f3a90ad65c7095d0b0f6dafbb5437b19b9e8058feec50545d35`
`font_01_sfnt_off0000639b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x639B	19396 bytes
SHA-256: `3adc7a282cab8ba3a37095254e0240168cba114dec929129f90720ed2ac746a4`

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