PDF malware analysis — malicious · 556a998417c0d2c6

MALICIOUS

PDF

42.9 KB Created: 2021-06-03 21:59:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: ad59344b613ea7afdaf85a9c10c6a636 SHA-1: 3b21832ca3242669eb3a6ee0206a1dda2d37ee4e SHA-256: 556a998417c0d2c67623b22ae32c6b7277fb36cc57f8ade50b262459bb0678e9

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains a lure related to game hacks, directing users to a URL that likely serves a malicious payload. The ML classifier strongly indicated maliciousness, and the presence of multiple embedded URLs further supports this assessment. No scripts were extracted, but the document's structure and embedded links suggest a phishing or malware distribution attempt.

Machine Learning

Nyx PDF Classifier malicious score 0.9874

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.online/app/479516143/minecraft-hacks-pc-game-hack PDF link annotation
- http://www.js100.com/uploads/ckeditor/files/apps-for-free-robux_GM431946152.pdfIn PDF document text
- http://www.js100.com/uploads/ckeditor/files/coin-master-free-spins-through-coin-pop_GM406889139.pdfIn PDF document text
- http://www.js100.com/uploads/ckeditor/files/coin-master-free-snacks-link_GM406889139.pdfIn PDF document text
- http://www.js100.com/uploads/ckeditor/files/coin-master-rewards_GM406889139.pdfIn PDF document text
- http://www.js100.com/uploads/ckeditor/files/free-coins-for-coin-master_GM406889139.pdfIn PDF document text
- http://www.js100.com/uploads/ckeditor/files/rbx-gg-free-robux_GM431946152.pdfIn PDF document text
- http://www.js100.com/uploads/ckeditor/files/how-to-hack-coin-master-computer_GM406889139.pdfIn PDF document text
- http://www.js100.com/uploads/ckeditor/files/minecraft-hack-client-18-9_GM479516143.pdfIn PDF document text
- http://www.js100.com/uploads/ckeditor/files/www-coin-master-hack_GM406889139.pdfIn PDF document text
- http://www.js100.com/uploads/ckeditor/files/free-robux-sites-that-work_GM431946152.pdfIn PDF document text
- http://www.js100.com/uploads/ckeditor/files/coin-master-free-spins-daily_GM406889139.pdfIn PDF document text
- http://www.js100.com/uploads/ckeditor/files/www-coinmaster_GM406889139.pdfIn PDF document text
- http://www.js100.com/uploads/ckeditor/files/free-roblox-shirt-templates_GM431946152.pdfIn PDF document text
- http://www.js100.com/uploads/ckeditor/files/free-free-robux_GM431946152.pdfIn PDF document text
- http://www.js100.com/uploads/ckeditor/files/minecraft-java-free-trial_GM479516143.pdfIn PDF document text
- http://www.js100.com/uploads/ckeditor/files/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
- http://www.js100.com/uploads/ckeditor/files/pubg-uc-redeem-code-midasbuy_GM1330123889.pdfIn PDF document text
- http://www.js100.com/uploads/ckeditor/files/real-minecraft-for-free_GM479516143.pdfIn PDF document text
- http://www.js100.com/uploads/ckeditor/files/pokemon-go-free-pokeballs-2021_GM1094591345.pdfIn PDF document text
- http://www.js100.com/uploads/ckeditor/files/minecraft-windows-10-free-trial_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_004_off00004ea2.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4EA2	24648 bytes
SHA-256: `83cef5c6ee7180e595c89313ea1351a53abef9401dd8e4048a2c2a9189cb234c`
`font_01_sfnt_off0000867f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x867F	17892 bytes
SHA-256: `4b573e8fc82ea506cc897612561133da94e30df5f60715d4b9731bc7aae59dad`

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