PDF malware analysis — malicious · 7e60546483b76e22

MALICIOUS

PDF

43.8 KB Created: 2021-05-13 13:41:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: fa3c5bf6a9926e66d960fdf5247505a6 SHA-1: 171eac8a3e6a4b4496d79e023f40e1bb071495c9 SHA-256: 7e60546483b76e224880e6eee97fff23b7251655903b6fce8f110ca74495d5dc

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 0.9969

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/479516143/minecraft-toolbox-premium-apk-game-hack PDF link annotation
- https://www.knjiznica-oroslavje.hr/files/free-minecraft-server-hosting-with-plugins_GM479516143.pdfIn PDF document text
- http://knjiznica-oroslavje.hr/files/rbx-free-robux_GM431946152.pdfIn PDF document text
- http://knjiznica-oroslavje.hr/files/how-to-get-free-robux-without-downloading-any-apps_GM431946152.pdfIn PDF document text
- http://knjiznica-oroslavje.hr/files/minecraft-esp_GM479516143.pdfIn PDF document text
- http://knjiznica-oroslavje.hr/files/promo-code-free-robux_GM431946152.pdfIn PDF document text
- https://www.knjiznica-oroslavje.hr/files/get-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
- http://knjiznica-oroslavje.hr/files/coin-master-daily-gift-free-spins-and-coins-link_GM406889139.pdfIn PDF document text
- http://knjiznica-oroslavje.hr/files/free-robux-no-survey-or-human-verification_GM431946152.pdfIn PDF document text
- http://knjiznica-oroslavje.hr/files/coin-master-daily-spin-free_GM406889139.pdfIn PDF document text
- http://knjiznica-oroslavje.hr/files/roblox-hacks-2021_GM431946152.pdfIn PDF document text
- https://www.knjiznica-oroslavje.hr/files/how-to-hack-someones-roblox-account-2021_GM431946152.pdfIn PDF document text
- https://www.knjiznica-oroslavje.hr/files/roblox-toy-codes-free_GM431946152.pdfIn PDF document text
- http://knjiznica-oroslavje.hr/files/rbl-gg-free-robux_GM431946152.pdfIn PDF document text
- https://www.knjiznica-oroslavje.hr/files/free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
- https://www.knjiznica-oroslavje.hr/files/coin-master-free-spins-no-verification_GM406889139.pdfIn PDF document text
- http://knjiznica-oroslavje.hr/files/minecraft-free-apk-java-edition_GM479516143.pdfIn PDF document text
- http://knjiznica-oroslavje.hr/files/how-many-levels-are-there-in-coin-master_GM406889139.pdfIn PDF document text
- http://knjiznica-oroslavje.hr/files/how-to-change-roblox-username-for-free_GM431946152.pdfIn PDF document text
- http://knjiznica-oroslavje.hr/files/free-robux-thumbnail_GM431946152.pdfIn PDF document text
- http://knjiznica-oroslavje.hr/files/minecraft-hack-mod_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_003_off00004dff.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4DFF	24724 bytes
SHA-256: `cff9929e3fd9350c43dd2fda0283e0ff25588d3d1730e03d92a3853f3732e5ea`
`font_01_sfnt_off000086db.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x86DB	19052 bytes
SHA-256: `63b34367e50e18a48a079b101ded60a055c6c14420bbde51c61de52725ca57a4`

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