PDF malware analysis — malicious · 5ea9b7523f2944f3

MALICIOUS

PDF

34.2 KB Created: 2021-07-06 17:06:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-24

MD5: db3ea04d1ffebdd7b7a7c8ca323b7561 SHA-1: eed663e61001bf303fd5a625566437995c5c7ef9 SHA-256: 5ea9b7523f2944f35cff457b4f52ebcdc5d001f3b623c3f79996caa30c98fcea

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.tw/app/406889139/2021-free-coin-master-spins-game-hack PDF link annotation
- https://www.knjiznica-oroslavje.hr/files/mcpe-master-hack-unlimited-coins-apk_GM406889139.pdfIn PDF document text
- https://www.knjiznica-oroslavje.hr/files/pubg-uc-codashop_GM1330123889.pdfIn PDF document text
- http://knjiznica-oroslavje.hr/files/how-to-play-minecraft-for-free_GM479516143.pdfIn PDF document text
- https://www.knjiznica-oroslavje.hr/files/coin-master-free-2021-spin-link_GM406889139.pdfIn PDF document text
- http://knjiznica-oroslavje.hr/files/free-tiktok-app_GM835599320.pdfIn PDF document text
- https://www.knjiznica-oroslavje.hr/files/bloxpink-free-robux_GM431946152.pdfIn PDF document text
- http://knjiznica-oroslavje.hr/files/how-to-get-free-cards-on-coin-master_GM406889139.pdfIn PDF document text
- http://knjiznica-oroslavje.hr/files/roblox-hacks-flame_GM431946152.pdfIn PDF document text
- https://www.knjiznica-oroslavje.hr/files/how-to-get-free-robux-without-downloading-apps-2021_GM431946152.pdfIn PDF document text
- https://www.knjiznica-oroslavje.hr/files/coin-master-free-spins-link-blogspot-2021_GM406889139.pdfIn PDF document text
- http://knjiznica-oroslavje.hr/files/cheat-engine-for-roblox-apocalypse-rising_GM431946152.pdfIn PDF document text
- http://knjiznica-oroslavje.hr/files/roblox-help-free-robux_GM431946152.pdfIn PDF document text
- http://knjiznica-oroslavje.hr/files/free-coin-coin-master_GM406889139.pdfIn PDF document text
- http://knjiznica-oroslavje.hr/files/minecraft-fly-hack_GM479516143.pdfIn PDF document text
- https://www.knjiznica-oroslavje.hr/files/robux-generator-without-human-verification-2021_GM431946152.pdfIn PDF document text
- http://knjiznica-oroslavje.hr/files/minecraft-win-10-free_GM479516143.pdfIn PDF document text
- https://www.knjiznica-oroslavje.hr/files/free-robux-games-that-actually-work_GM431946152.pdfIn PDF document text
- https://www.knjiznica-oroslavje.hr/files/hack-the-game-coin-master_GM406889139.pdfIn PDF document text
- http://knjiznica-oroslavje.hr/files/free-roblox-avatar_GM431946152.pdfIn PDF document text
- http://knjiznica-oroslavje.hr/files/cheat-code-roblox-dbz_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
`stream_002_off00002ec9.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x2EC9	22884 bytes
SHA-256: `ce89dba559e476bac66f3634f81e9c353b204a98628e762c5faef40ee4d22bfa`
`font_01_sfnt_off0000622b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x622B	18576 bytes
SHA-256: `1dcfde0ea894eaede7563a613ed9f74afd7599b0d21c5c843a16c586c159ef3a`

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