Malicious PDF — malware analysis report

Static analysis result for SHA-256 546b1a7d7e268a50…

MALICIOUS

PDF

42.8 KB Created: 2021-05-14 04:30:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: cdc9db924ed3e49e6afc0e0f496fd07a SHA-1: 9fb16e1df29adffd94a0a9490f248667d444b6f2 SHA-256: 546b1a7d7e268a50422689fb54dfb6445567f42f7818afc638e8cf5c983ed55d
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 0.9971

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/how-do-you-get-roebucks-for-free-game-hack PDF link annotation
    • http://practicaltech.com/images/minecraft-ios-mods_GM479516143.pdfIn PDF document text
    • http://practicaltech.com/images/roblox-hacking-website_GM431946152.pdfIn PDF document text
    • http://practicaltech.com/images/free-robux-no-human-verify_GM431946152.pdfIn PDF document text
    • http://practicaltech.com/images/minecraft-ps3-free-download_GM479516143.pdfIn PDF document text
    • http://practicaltech.com/images/mangocheats-com-hack-coin-master-cheat_GM406889139.pdfIn PDF document text
    • http://practicaltech.com/images/free-robux-generator-no-survey_GM431946152.pdfIn PDF document text
    • http://practicaltech.com/images/free-daily-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://practicaltech.com/images/how-to-get-more-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://practicaltech.com/images/minecraft-images-free_GM479516143.pdfIn PDF document text
    • http://practicaltech.com/images/wurst-hacked-client-112-2_GM479516143.pdfIn PDF document text
    • http://practicaltech.com/images/gamesofficenet-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://practicaltech.com/images/archery-master-3d-apk-and-mod-free-download-unlimited-coins_GM406889139.pdfIn PDF document text
    • http://practicaltech.com/images/minecraft-free-demo_GM479516143.pdfIn PDF document text
    • http://practicaltech.com/images/roblox-inappropriate-games_GM431946152.pdfIn PDF document text
    • http://practicaltech.com/images/coin-master-free-food_GM406889139.pdfIn PDF document text
    • http://practicaltech.com/images/free-robux-real-working_GM431946152.pdfIn PDF document text
    • http://practicaltech.com/images/coin-master-hack-ios-12_GM406889139.pdfIn PDF document text
    • http://practicaltech.com/images/free-google-play-promo-codes-coin-master_GM406889139.pdfIn PDF document text
    • http://practicaltech.com/images/coin-master-hack-apk-latest-version-2021_GM406889139.pdfIn PDF document text
    • http://practicaltech.com/images/free-spin-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000048e6.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x48E6 26084 bytes
SHA-256: c65c1d814fdd2d254283802283f9fb069896eff81522149f15284dd491d1b442
font_01_sfnt_off000083e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83E7 18572 bytes
SHA-256: 9b0926f851b5352a1c94160dd5570857b20d788284ad3dea1803889ab4bbc101

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