Malicious PDF — malware analysis report

Static analysis result for SHA-256 185ced96ad532fda…

MALICIOUS

PDF

35.4 KB Created: 2021-06-29 00:48:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24
MD5: c15f24ef20b63658157ff18902d5f348 SHA-1: 183c38965b3bda4d638fa38792af1af31863cdc7 SHA-256: 185ced96ad532fda400f69f7f58396514c3a3e88618ce479203f1faaf58490bb
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links, including one to a known malicious redirector infrastructure at http://netcdn.co/app/431946152/roblox-countdown-games-hack-game-hack. The document body and embedded links suggest a lure for game-related cheats or hacks, likely to deliver a secondary payload or phish for credentials. No scripts were extracted, but the presence of malicious redirectors and the lure indicate a high likelihood of a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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-countdown-games-hack-game-hack In PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/robux-hack-free-robux_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/minecraft-pe-apk-free-download_GM479516143.pdfIn PDF document text
    • http://pustaka.pn-calang.go.id/repository/how-to-get-minecraft-java-edition-for-free_GM479516143.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/best-free-minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • http://pustaka.pn-calang.go.id/repository/how-to-hack-jailbreak-roblox-money_GM431946152.pdfIn PDF document text
    • http://pustaka.pn-calang.go.id/repository/free-roblox-accounts-with-robux-that-work-not-banned-2021_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/roblox-hack-me-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.pn-calang.go.id/repository/how-to-hack-someone-home-in-roblox-high-school_GM431946152.pdfIn PDF document text
    • http://pustaka.pn-calang.go.id/repository/anti-afk-hack-roblox_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/free-spin-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/all-free-guardia-presents-in-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.pn-calang.go.id/repository/roblox-free-catalog-items-hack_GM431946152.pdfIn PDF document text
    • http://pustaka.pn-calang.go.id/repository/free-roblox-promo-codes-for-robux-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.pn-calang.go.id/repository/how-to-get-free-robux-in-meep-city-2021_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/free-links-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/pokemon-go-free-high-level-account-hack_GM1094591345.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/free-coin-master-credit_GM406889139.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/best-free-minecraft-skins_GM479516143.pdfIn PDF document text
    • http://pustaka.pn-calang.go.id/repository/get-free-roblox-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/how-to-hack-peoples-passwords-on-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.

FilenameKindSourceSize
font_00_sfnt_off000030f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30F9 22700 bytes
SHA-256: 90f51aa190e6fbeb0b3ec81ad830675871afd990516651daf14952d9ff52fcec
font_01_sfnt_off000063ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63BA 19496 bytes
SHA-256: 62247b9a4f839105717facf7688fb98e9c0725124b16624e21ccb0c7d88bf775

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