Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f47501cbc38a0a1…

MALICIOUS

PDF

35.3 KB Created: 2021-07-06 08:13:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 19ea2c3ae6e78d2d7c0bef2d61ea0857 SHA-1: 024540809b00010b341ce457ad18cab35fe84d0d SHA-256: 5f47501cbc38a0a1572d47bbe37887a9219de978b5ab33be4051981ed1421e5b
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a prominent link disguised as a 'Coin Master Hack Using Lucky Patcher' generator. This lure, combined with heuristics indicating a game hack redirect, strongly suggests a social engineering tactic to trick users into visiting a malicious URL. The ML classifier also flagged this PDF as malicious with high confidence.

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/coin-master-hack-using-lucky-patcher-game-hack PDF link annotation
    • http://library.apsidoarjo.ac.id/repository/free-stuff-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/how-to-hack-a-minecraft-server-and-make-yourself-op_GM479516143.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/roblox-weight-lifting-simulator-2-strength-hack_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/coin-master-3533-android-hack_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/robux-website-hack_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/how-to-hack-roblox-mm2_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/how-can-you-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-4-now-robux_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-robux-on-roblox-2021-no-survey_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/how-to-get-roblox-coins-for-free_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/how-to-change-roblox-user-name-android-for-free_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/best-roblox-speed-hack_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/coin-master-card-hack_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/assassin-cheats-roblox_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/how-to-upload-audio-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/roblox-hackeado-de-cuenta_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/coin-master-update-2021_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/roblox-hack-2021-windows-10_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/buy-robux-for-free-no-human-verification_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/roblox-anti-cheat-speed_GM431946152.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_002_off000033d9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x33D9 22428 bytes
SHA-256: 4bdafcbac119554f92bbf41b29fe8c854be67f7558fde34c6f75e3a17aa3b9b0
font_01_sfnt_off000065e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65E7 18832 bytes
SHA-256: 4e42799b3572d1241d93d93b188e429b6a90beaba4def4bd8627acee4e24b07a

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