PDF malware analysis — malicious · 5403fdee848af1c4

MALICIOUS

PDF

41.6 KB Created: 2021-05-14 08:22:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 9839139934c8bb74fe3d6abdc8d7f1a1 SHA-1: 6603baf25007252e3572a4268747ae5c1c5b5acf SHA-256: 5403fdee848af1c42e58d1a1bc7f183ff059999b0512fd01555038669b1d2aeb

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs and a lure related to 'free Robux' and game hacks, indicating a phishing or scam attempt. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' strongly suggests the intent is to redirect users to malicious sites. While no scripts were explicitly extracted, the PDF structure and embedded URLs are sufficient to infer a malicious intent to lure users to potentially harmful content.

Machine Learning

Nyx PDF Classifier malicious score 0.9971

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/free-robux-scams-game-hack PDF link annotation
- http://www.inoxograde.hr/files/get-free-robux-com_GM431946152.pdfIn PDF document text
- http://www.inoxograde.hr/files/free-spin-coin-master-2021_GM406889139.pdfIn PDF document text
- http://www.inoxograde.hr/files/minecraft-hacked-apk_GM479516143.pdfIn PDF document text
- http://www.inoxograde.hr/files/coin-master-coins_GM406889139.pdfIn PDF document text
- http://www.inoxograde.hr/files/moonactive-coin-master-hack_GM406889139.pdfIn PDF document text
- http://www.inoxograde.hr/files/apps-for-free-robux_GM431946152.pdfIn PDF document text
- http://www.inoxograde.hr/files/free-robux-without-survey_GM431946152.pdfIn PDF document text
- http://www.inoxograde.hr/files/minecraft-servers-that-allow-hacks_GM479516143.pdfIn PDF document text
- http://www.inoxograde.hr/files/free-spin-link-coin-master-today_GM406889139.pdfIn PDF document text
- http://www.inoxograde.hr/files/coin-master-latest-mod-apk-free-download_GM406889139.pdfIn PDF document text
- http://www.inoxograde.hr/files/rbxoffers-earn-free-robux_GM431946152.pdfIn PDF document text
- http://www.inoxograde.hr/files/minecraft-free-download-no-virus_GM479516143.pdfIn PDF document text
- http://www.inoxograde.hr/files/minecraft-114-4-download-free_GM479516143.pdfIn PDF document text
- http://www.inoxograde.hr/files/free-robux-come_GM431946152.pdfIn PDF document text
- http://www.inoxograde.hr/files/oprewards-points-generator_GM431946152.pdfIn PDF document text
- http://www.inoxograde.hr/files/how-to-hack-roblox-for-robux_GM431946152.pdfIn PDF document text
- http://www.inoxograde.hr/files/how-to-get-free-robux-2021-easy_GM431946152.pdfIn PDF document text
- http://www.inoxograde.hr/files/free-spins-coin-master-links-2021_GM406889139.pdfIn PDF document text
- http://www.inoxograde.hr/files/coin-master-hack-unlimited-spins_GM406889139.pdfIn PDF document text
- http://www.inoxograde.hr/files/how-to-get-free-roebucks-in-roblox_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_off000048a4.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x48A4	24064 bytes
SHA-256: `1a84ee88706576e039f84501e4de4ed0e4ca726805be51fd6bb37e5ef4a02ee5`
`font_01_sfnt_off00007f8f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7F8F	18500 bytes
SHA-256: `f6eebadb3de4af7ab0205057cc55fc1daf9397692da1370c2a19d2d749ad11f1`

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