Malicious PDF — malware analysis report

Static analysis result for SHA-256 62f5a6cb710314b0…

MALICIOUS

PDF

35.2 KB Created: 2021-06-28 01:22:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 0fa20053888511ec3bc65185335fcfca SHA-1: dd3af8a0be4e90c9690baf8fc170c0fa7ca1a97c SHA-256: 62f5a6cb710314b06d7b4fdc5036cf94cbbc924bb3fbf79ba0f4f8bd8c8a77d4
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.co/app/431946152/roblox-hack-fr-mad-ciy-game-hack PDF link annotation
    • https://pn-tapaktuan.go.id/pustaka/repository/how-to-make-t-shirts-on-roblox-free-sell_GM431946152.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/coin-master-daily-free-spin-app_GM406889139.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/tre-un-hacker-sur-roblox-facilement_GM431946152.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/coinmaster-spins_GM406889139.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/free-robux-reddit_GM431946152.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/hack-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/how-to-play-minion-free-tag-roblox_GM431946152.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/minecraft-wurst-hacked-client_GM479516143.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/free-roblox-gift-card-codes-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/roblox-how-to-get-free-robux-with-cheat-engine-62_GM431946152.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/coins-master_GM406889139.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/how-to-get-free-robux-without-surveys_GM431946152.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/get-free-robux-today_GM431946152.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/haktuts-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/coin-master-hack-version-download-ios_GM406889139.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/roblox-hack-generator-download-no-survey_GM431946152.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/coin-master-free-mighty-lion-card_GM406889139.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/coin-master-free-raid-link_GM406889139.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/roblox-2021-download-free_GM431946152.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/minecraft-pe-hack-client_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.

FilenameKindSourceSize
font_00_sfnt_off00003079.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3079 22680 bytes
SHA-256: d118d26bdfecc9b9e228d7c4ffd99afac60509eb1830938e5b45085678e67a6a
font_01_sfnt_off0000638b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x638B 19488 bytes
SHA-256: a6c8da3fae683c6cefcfb074f09ff1d53547975a667900bd881ad7906b87f99f

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